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董 一, 骆 聪, 张 宁, 尤 若, 袁 强, 李 无, 张 颖. [Correlation between combined deflection angle classification adduction typing and complications after internal fixation of adduction femoral neck fracture]. Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi 2024; 38:405-411. [PMID: 38632058 PMCID: PMC11024535 DOI: 10.7507/1002-1892.202401063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/13/2024] [Revised: 03/13/2024] [Indexed: 04/19/2024]
Abstract
Objective To analyze the correlation between postoperative complications and combined deflection angle classification adduction type (CDAC-ADT) of femoral neck fractures after cannulated screw internal fixation. Methods The clinical data of 121 patients with CDAC-ADT femoral neck fracture admitted between January 2018 and December 2021 and met the selected criteria were retrospectively analyzed. There were 69 males and 52 females, the age ranged from 19 to 79 years (mean, 48.1 years). The causes of injury included 52 cases of traffic accident, 24 cases of falling from height, and 45 cases of fall. The time from injury to operation ranged from 2 to 12 days, with an average of 6.0 days. Among them, there were 18 cases of CDAC-ADT type Ⅰ, 46 cases of type Ⅱ, and 57 cases of type Ⅲ; 6 cases of Garden type Ⅱ, 103 cases of type Ⅲ, and 12 cases of type Ⅳ; and according to the location of the fracture line, there were 26 cases of subcapitate type, 88 cases of transcervical type, and 7 cases of basal type. All patients were treated with cannulated screw internal fixation. The occurrence of complications (including internal fixation failure, fracture nonunion, and osteonecrosis of the femoral head) was recorded, and the correlation between complications and CDAC-ADT typing, Garden typing, and fracture line location were analyzed. Results The patients were followed up 8-44 months, with a mean of 24.9 months. There were 10 cases of internal fixation failure, 7 cases of fracture nonunion, and 30 cases of osteonecrosis of the femoral head after operation. Correlation analysis showed that patients' CDAC-ADT typing was significantly correlated with the overall incidence of complication and the incidence of internal fixation failure, fracture nonunion, and osteonecrosis of the femoral head ( P<0.05), and the Pearson coefficient of contingency were 0.435, 0.251, 0.254, and 0.241, respectively. Garden typing did not correlate with the overall incidence of complication and the incidence of internal fixation failure and fracture nonunion ( P>0.05), but correlated with the incidence of osteonecrosis of the femoral head ( P<0.05), and the Pearson coefficient of contingency was 0.251. Fracture line position typing had no correlation with the overall incidence of complication and the incidence of internal fixation failure, fracture nonunion, and osteonecrosis of the femoral head ( P>0.05). Conclusion CDAC-ADT typing has obvious correlation with postoperative complications of femoral neck fracture and can be used to predict complications of femoral neck fracture.
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Affiliation(s)
- 一平 董
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
- 河南省洛阳正骨医院(河南省骨科医院)髋关节外五科(河南洛阳 417002)The Fifth Department of Hip Joint, Luoyang Orthopedic-Traumatological of Henan Province (Henan Provincial Orthopedic Hospital), Luoyang Henan, 471002, P. R. China
| | - 聪聪 骆
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
- 河南省洛阳正骨医院(河南省骨科医院)髋关节外五科(河南洛阳 417002)The Fifth Department of Hip Joint, Luoyang Orthopedic-Traumatological of Henan Province (Henan Provincial Orthopedic Hospital), Luoyang Henan, 471002, P. R. China
| | - 宁 张
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
- 河南省洛阳正骨医院(河南省骨科医院)髋关节外五科(河南洛阳 417002)The Fifth Department of Hip Joint, Luoyang Orthopedic-Traumatological of Henan Province (Henan Provincial Orthopedic Hospital), Luoyang Henan, 471002, P. R. China
| | - 若楠 尤
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
- 河南省洛阳正骨医院(河南省骨科医院)髋关节外五科(河南洛阳 417002)The Fifth Department of Hip Joint, Luoyang Orthopedic-Traumatological of Henan Province (Henan Provincial Orthopedic Hospital), Luoyang Henan, 471002, P. R. China
| | - 强 袁
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
| | - 无阴 李
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
| | - 颖 张
- 河南中医药大学研究生院(郑州 450046)Graduate School of Henan University of Traditional Chinese Medicine, Zhengzhou Henan, 450046, P. R. China
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Schulz KL, Matta R, Nobis CP, Möst T, Kesting M, Lutz R. Three-dimensional assessment of upper airway changes associated with mandibular positional deviations following fibula free flap reconstruction. Clin Oral Investig 2024; 28:248. [PMID: 38602619 PMCID: PMC11008060 DOI: 10.1007/s00784-024-05646-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2023] [Accepted: 04/01/2024] [Indexed: 04/12/2024]
Abstract
OBJECTIVES Fibula free flaps (FFF) are the standard approach to mandibular reconstruction after partial resection, with the goal of restoring aesthetics and masticatory function. The graft position affects both and must be carefully selected. Correlations between sagittal positioning and upper airway anatomy are known from orthognathic surgery. This study aims to evaluate changes in mandibular position and upper airway anatomy after reconstructive surgery with FFF and corresponding correlations. MATERIALS AND METHODS Mandibular position after reconstruction was evaluated using three-dimensional datasets of pre- and postoperative computed tomography scans of patients treated between 2020 and 2022. Three-dimensional measurements were performed on both condyles and the symphyseal region. Changes in upper airway volume and minimum cross-sectional area (minCSA) were analysed. Intra-rater reliability was assessed. Correlations between changes in upper airway anatomy and sagittal mandibular position were tested. RESULTS The analysis included 35 patients. Intra-rater reliability was good to excellent. Condylar deviations and rotations were mostly rated as small. Changes in symphyseal position were considerably greater. Median airway volume decreased in the oropharynx and hypopharynx. Posterior deviation of the symphysis was associated with a decreasing minCSA in the hypopharynx and vice versa. CONCLUSIONS The overall accuracy of mandibular reconstructions with FFF is high, but there is room for optimization. The focus of research should be extended from masticatory to respiratory rehabilitation. CLINICAL RELEVANCE Effects on respiratory function should be considered prior to graft positioning. The clinical relevance of upper airway changes within the complex rehabilitation of reconstructive surgery patients needs to be further investigated.
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Affiliation(s)
- Katja Leonie Schulz
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany.
| | - Ragai Matta
- Department of Prosthodontics, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Christopher-Philipp Nobis
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Tobias Möst
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Marco Kesting
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Rainer Lutz
- Department of Oral and Cranio-Maxillofacial Surgery, University Hospital Erlangen, Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Erlangen, Germany
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Shetty A, Bhandary R, Ahuja D, Venugopalan G, Grossi E, Tartaglia GM, Khijmatgar S. The impact of unmet treatment need on oral health related quality of life: a questionnaire survey. BMC Oral Health 2024; 24:432. [PMID: 38589820 PMCID: PMC11003014 DOI: 10.1186/s12903-024-04169-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2023] [Accepted: 03/20/2024] [Indexed: 04/10/2024] Open
Abstract
BACKGROUND Based on the present global burden of oral diseases, unmet dental needs affect a more significant population worldwide. It is characterised by the need for dental care but receiving delayed or no care. The contributing factors include lack of knowledge about oral health, its consequences, and the availability of dental services. We need to find out the scale of the problem of unmet dental needs for the south Indian population. Therefore, the objective was to determine the relationship between the presence of oral disease and the quality of life-related to oral health using the OHIP-14 tool. METHODS The unmet dental requirements of the south Indian population were determined using a cross-sectional questionnaire survey. Close-ended questions were used to obtain data from two investigators trained to record the answers from the patients. The data was collected using the OHIP-14 questionnaire, which consists of 14 items divided into seven domains with two questions each. Physical pain, psychological impairment, physical disability, psychological disability, social disability, and disability were all considered. An additional analysis of artificial neural network (ANN) was done. RESULTS The response rate was 100 per cent. N = 1029 people replied to the questionnaire about their unmet dental needs. N = 497 (48.3%) were men, whereas N = 532 (51.7%) were women. The average age was 31.7811.72. As their current occupation, most of the included subjects (60.1%) were students. The respondents had no known personal habits and a mixed diet (94.93%). The average BMI was 24.022.59 (14-30.9). OHIP was present in 62.3% of the population. The average OHIP-14 severity score was 10.97. (8.54). The severity and degree of unmet dental need were substantial (p0.01) due to pain in the mouth/teeth/gums, malocclusion, and gum bleeding. The most common OHIP-14 domains affected by unmet oral needs were psychological discomfort, psychological limitation, social limitation, and feeling handicapped. The analysis of ANN revealed that high OHIP scores were primarily attributed to dental caries, poor oral health, and dental aesthetics. CONCLUSION The severity and degree of unmet dental needs were significant among the south Indian population. The most common oral health status that impacted OHIP-14 domains were pain, malocclusion, and bleeding gums. These patients were significantly impacted by psychological discomfort and social limitations and felt handicapped.
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Affiliation(s)
- Akshata Shetty
- Nitte (Deemed to be University), Department of Periodontics, A B Shetty Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Rahul Bhandary
- Nitte (Deemed to be University), Department of Periodontics, A B Shetty Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Dhruv Ahuja
- Department of Orthodontics and Dentofacial Orthopedics, Manav Rachna International Institute of Research and Studies (MRIIRS), Manav Rachna Dental College, Faridabad, Haryana, India
| | - Geetu Venugopalan
- Nitte (Deemed to be University), Department of Periodontics, A B Shetty Institute of Dental Sciences, Mangalore, Karnataka, India
| | - Enzo Grossi
- Villa Santa Maria Institute, Tavernerio, Italy
| | | | - Shahnawaz Khijmatgar
- Nitte (Deemed to be University), Department of Oral Biology and Genomic Studies, A B Shetty Memorial Institute of Dental Sciences, Mangalore, Karnataka, India.
- SC Chirurgia Maxillo-Facciale e Odontostomatologia, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milano, Italy.
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Alqaisi NN, Haddad RA, Amasha HM. Effectiveness of a low-intensity static magnetic field in accelerating upper canine retraction: a randomized controlled clinical trial. BMC Oral Health 2024; 24:424. [PMID: 38582881 PMCID: PMC10998372 DOI: 10.1186/s12903-024-04212-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Accepted: 03/31/2024] [Indexed: 04/08/2024] Open
Abstract
INTRODUCTION Neodymium-iron-boron magnets have been suggested as a contemporary method for accelerating the process of orthodontic tooth movement (OTM). A limited number of clinical trials evaluated their effectiveness in accelerating OTM which is desirable for both orthodontists and patients. The present study aimed to investigate the effectiveness of a low-intensity static magnetic field (SMF) in accelerating upper canine retraction movement. MATERIALS AND METHODS Seventeen patients (mean age 20.76 ± 2.9 years) with their orthodontic treatment decision to extract the upper and lower first premolars due to bimaxillary protrusion malocclusion were included in this split-mouth study. Canine retraction was performed using Nickel-titanium (Ni-Ti) closed-coil springs (150 g of force on each side). The experimental side received SMF via an auxiliary wire that carried 4-neodymium iron-born magnets with an air gap of 2 mm between the magnets to produce a magnetic field density of 414 mT in the region corresponding to the lateral ligament of the upper canine. To determine the rate of upper canine retraction and upper molar drift, alginate impressions were taken once a month to create plaster casts, which were analyzed digitally via a three-dimensional method. RESULTS The rate of upper canine retraction was significantly greater (P < 0.05) on the SMF side than that on the control side during the first and second months, with an overall duration (19.16%) that was greater than that on the control side. The peak acceleration occurred during the second month (38.09%). No significant differences in upper molar drift were detected between the experimental and control sides (P > 0.05). CONCLUSION A low-intensity static magnetic field was effective at accelerating upper canine retraction. The difference between the two sides was statistically significant but may not be clinically significant. The SMF did not affect upper molar drift during the upper canine retraction phase. TRIAL REGISTRATION The trial was retrospectively registered at the ISRCTN registry ( ISRCTN59092624 ) (31/05/2022).
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Affiliation(s)
- Nataly N Alqaisi
- Department of Orthodontics, Faculty of Dentistry, Damascus University, Damascus, Syria.
| | - Rania A Haddad
- Department of Orthodontics, Faculty of Dentistry, Damascus University, Damascus, Syria
| | - Hani M Amasha
- Department of Biomedical Engineering, Faculty of Electrical Engineering, Damascus University, Damascus, Syria
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Sencak RC, Benavides E, Cevidanes L, Yatabe M, Koerich L, Souki BQ, Ruellas ACDO. Asymmetry in Class II subdivision malocclusion: Assessment based on 3D surface models. Orthod Craniofac Res 2024; 27:267-275. [PMID: 37882502 DOI: 10.1111/ocr.12723] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2023] [Revised: 09/24/2023] [Accepted: 10/13/2023] [Indexed: 10/27/2023]
Abstract
INTRODUCTION There is currently no consensus in the literature whether the aetiology of a Class II subdivision is dental, skeletal or both. The aim of this study was to identify and quantify skeletal and dental asymmetries in Class II subdivision malocclusions. METHODS CBCTs from 33 Class II subdivision malocclusion patients were used to construct 3D volumetric label maps. Eighteen landmarks were identified. The original scan and associated 3D volumetric label map were mirrored. Registration of the original and mirrored images relative to the anterior cranial base, maxilla and mandible were performed. Surface models were generated, and 3D differences were quantified. Statistical analysis was performed. RESULTS Anterior cranial base registration showed significant differences for fossa vertical difference, fossa roll, mandibular yaw, mandibular lateral displacement and lower midline displacement. Regional registrations showed significant differences for antero-posterior (A-P) mandibular length, maxillary roll, A-P maxillary first molar position, maxillary first molar yaw and maxillary first molar roll. Class II subdivision patients also show an asymmetric mandibular length as well as an asymmetric gonial angle. Moderate correlations were found between the A-P molar relationship and fossa A-P difference, mandibular first molar A-P difference, maxillary first molar A-P difference and maxillary first molar yaw. CONCLUSIONS This study suggests that Class II subdivisions can result from both significant skeletal and dental factors. Skeletal factors include a shorter mandible as well as posterior and higher displacement of the fossa on the Class II side, resulting in mandibular yaw. Dental factors include maxillary and mandibular first molar antero-posterior asymmetry.
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Affiliation(s)
- Regina C Sencak
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Erika Benavides
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Lucia Cevidanes
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Marilia Yatabe
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Bernardo Quiroga Souki
- Graduate Program in Orthodontics, Pontifical Catholic University of Minas Gerais, Belo Horizonte, Brazil
| | - Antonio Carlos de Oliveira Ruellas
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
- Department of Orthodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Sadvandi G, Kianfar AE, Becker K, Heinzel A, Wolf M, Said‐Yekta Michael S. Systematic review on effects of experimental orthodontic tooth displacement on brain activation assessed by fMRI. Clin Exp Dent Res 2024; 10:e879. [PMID: 38558512 PMCID: PMC10982672 DOI: 10.1002/cre2.879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 03/04/2024] [Accepted: 03/09/2024] [Indexed: 04/04/2024] Open
Abstract
BACKGROUND Orthodontic treatment is often accompanied by discomfort and pain in patients, which are believed to be a result of orthodontic tooth displacement caused by the mechanical forces exerted by the orthodontic appliances on the periodontal tissues. These lead to change blood oxygen level dependent response in related brain regions. OBJECTIVE This systematic review aims to assess the impact of experimental orthodontic tooth displacement on alterations in central nervous system activation assessed by tasked based and resting state fMRI. MATERIALS AND METHODS A literature search was conducted using online databases, following PRISMA guidelines and the PICO framework. Selected studies utilized magnetic resonance imaging to examine the brain activity changes in healthy participants after the insertion of orthodontic appliances. RESULTS The initial database screening resulted in 791 studies. Of these, 234 were duplicates and 547 were deemed irrelevant considering the inclusion and exclusion criteria. Of the ten remaining potential relevant studies, two were excluded during full-text screening. Eight prospective articles were eligible for further analysis. The included studies provided evidence of the intricate interplay between orthodontic treatment, pain perception, and brain function. All of the participants in the included studies employed orthodontic separators in short-term experiments to induce tooth displacement during the early stage of orthodontic treatment. Alterations in brain activation were observed in brain regions, functional connectivity and brain networks, predominantly affecting regions implicated in nociception (thalamus, insula), emotion (insula, frontal areas), and cognition (frontal areas, cerebellum, default mode network). CONCLUSIONS The results suggest that orthodontic treatment influences beyond the pain matrix and affects other brain regions including the limbic system. Furthermore, understanding the orthodontically induced brain activation can aid in development of targeted pain management strategies that do not adversely affect orthodontic tooth movement. Due to the moderate to serious risk of bias and the heterogeneity among the included studies, further clinical trials on this subject are recommended.
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Affiliation(s)
- Gelareh Sadvandi
- Department of OrthodonticsRWTH Aachen University HospitalGermany
| | | | - Kathrin Becker
- Department of Dentofacial Orthopedics and OrthodonticsCharité Universitätsmedizin BerlinBerlinCC03Germany
| | - Alexander Heinzel
- Department of Nuclear MedicineMartin‐Luther‐University Halle‐WittenbergHalleGermany
| | - Michael Wolf
- Department of OrthodonticsRWTH Aachen University HospitalGermany
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Li K, Qin H, Wang J, Xing X. Unusual approach to treat malocclusion with traumatically missing and hopeless maxillary unilateral incisors: A case report. AUST ENDOD J 2024; 50:163-175. [PMID: 38411368 DOI: 10.1111/aej.12834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 01/16/2024] [Accepted: 02/11/2024] [Indexed: 02/28/2024]
Abstract
Orthodontic cases requiring tooth extraction sometimes involve post-traumatic incisors. For adolescent cases in which trauma causes the maxillary unilateral incisors to be missing or have poor prognoses, it is worth considering these teeth as candidates for extraction, and this unusual approach is seldom reported in the literature. An adolescent patient with a missing maxillary left lateral incisor and an ankylosed maxillary left central incisor sought treatment for dental protrusion and crowding. An unusual orthodontic approach was used, which involved the extraction of the maxillary left central incisor and mandibular first premolars. After treatment, the maxillary right central incisor was successfully translocated across the midpalatal suture and transformed into the left central incisor. Additionally, well-aligned teeth and enhanced smile aesthetics were achieved, and the treatment outcomes remained stable throughout the follow-up period.
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Affiliation(s)
- Kun Li
- Fushan Division, Yantai Stomatological Hospital Affiliated to Binzhou Medical College, Yantai, China
| | - Hanglin Qin
- Department of Orthodontics, Yantai Stomatological Hospital Affiliated to Binzhou Medical College, Yantai, China
| | - Junjie Wang
- Wolong Division, Yantai Stomatological Hospital Affiliated to Binzhou Medical College, Yantai, China
| | - Xiujin Xing
- Department of Orthodontics, Yantai Stomatological Hospital Affiliated to Binzhou Medical College, Yantai, China
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Ahmadi H, El-Rabbany M, Shargo R, Ricalde P. Maximal Mouth Opening in Infants: A Single-Group Prospective Cohort Study. J Oral Maxillofac Surg 2024; 82:443-448. [PMID: 38336351 DOI: 10.1016/j.joms.2024.01.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/12/2024]
Abstract
BACKGROUND Detection of mandibular range of motion variations in infants may allow for early diagnosis of pathologic conditions to the temporomandibular joint. PURPOSE The purpose of this study was to determine the normal ranges for maximal mouth opening (MMO) in healthy infants under 12 months of age. STUDY DESIGN, SETTING, SAMPLE A single-group prospective cohort study of consecutive patients below 12 months of age was conducted in an outpatient setting at the Florida Craniofacial Institute in Tampa, Florida. Patients were excluded if they had trismus, presented with signs of obstructive sleep apnea, suffered a facial fracture, or were diagnosed with a craniofacial syndrome. PREDICTOR/EXPOSURE/INDEPENDENT VARIABLE Age (in months) at the time of presentation, measured as a continuous variable. MAIN OUTCOME VARIABLE(S) The main outcome variable was MMO. This was measured by placing a thumb and forefinger in the infant's mouth and applies slight pressure to encourage MMO. In older infants with erupted central incisors, MMO was measured from the gingival margins. COVARIATES The covariates were sex, race, and gestational age. ANALYSES Findings were presented as means with 95% confidence intervals. A multivariate linear regression analysis was conducted to evaluate changes in MMO with increasing age. RESULTS The sample was composed of 151 infants with a mean age of 5.2 months (95% confidence interval [CI] 4.8 to 5.6), and 33% were female. The mean MMO was 32.1 mm (95% CI 31.5 to 32.7). Results of the linear regression analysis showed MMO to significantly increase with increasing age, increasing at a mean rate of approximately 1 mm per month (coefficient 1.06, 95% CI 0.88 to 1.23, P < .001). In neonates <1 month of age, the mean MMO was 22.0 mm (95% CI 20.4 to 23.6), compared to a mean of 36.7 mm (95% CI 34.8 to 38.6) in infants 11 months of age. CONCLUSIONS AND RELEVANCE The results of this study provide normative data of the association of age with MMO, which may be of value in assessing for infants with jaw mobility disorders.
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Affiliation(s)
- Hanie Ahmadi
- Research Assistant, Department of Oral Biology and Center for Molecular Microbiology, University of Florida College of Dentistry, Gainesville, FL
| | | | - Ryan Shargo
- Medical Student, University of South Florida Morsani College of Medicine, Tampa, FL
| | - Pat Ricalde
- Private Practice, Florida Craniofacial Institute, Associate Professor, University of South Florida, Director, Tampa Bay Cleft and Craniofacial Center, Fellowship Director, FCI Cleft and Craniofacial Surgery, Tampa, FL.
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Bhola M, Shivakumar A, Sharan J. Queries regarding monthly vs biweekly appointments for treatment of Class II malocclusion. Am J Orthod Dentofacial Orthop 2024; 165:377. [PMID: 38555163 DOI: 10.1016/j.ajodo.2023.12.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 12/20/2023] [Indexed: 04/02/2024]
Affiliation(s)
- Mayur Bhola
- Bhubaneswar, Odisha, India, and Kuala Lumpur, Malaysia
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Yilihamu S, Li Y, Nueraihemaiti Z, Maimaitili G. Comparison study of chewing efficiency in patients with different vertical skeletal patterns of Angle Class I and Angle Class II malocclusions. Quintessence Int 2024; 55:224-230. [PMID: 38224107 DOI: 10.3290/j.qi.b4867859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
OBJECTIVE The purpose of this study was to analyze and compare the differences in chewing efficiency among patients with different vertical skeletal types of Angle Class I and Angle Class II malocclusions, to provide reference for orthodontic clinical practice. METHOD AND MATERIALS Sample size estimation revealed a minimum of 53 for each class. Thus, a total of 108 patients with Angle Class I and Angle Class II malocclusions were selected. Lateral skull radiographs were taken, and head measurements were analyzed via geometric tracing software. Chewing efficiency was measured using the gravimetric method to compare between the two groups. The vertical skeletal pattern was classified via Steiner analysis. RESULTS Significant statistical differences in chewing efficiency were observed between patients presenting with Angle Class I and Angle Class II malocclusions (P < .05). Additionally, significant differences in chewing efficiency were observed among patients with different vertical skeletal patterns (P < .05). Furthermore, a statistically significant difference in chewing efficiency was found between men and women (P < .05). CONCLUSIONS Patients with Angle Class I malocclusions exhibited significantly higher chewing efficiency compared to those with Angle Class II malocclusions. Among patients with different vertical facial types, the chewing efficiency followed the order of low angle > normal angle > high angle. Moreover, men demonstrated a higher chewing efficiency than women.
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Alamoudi R, Kanavakis G, Oeschger ES, Halazonetis D, Gkantidis N. Occlusal characteristics in modern humans with tooth agenesis. Sci Rep 2024; 14:5840. [PMID: 38462644 PMCID: PMC10925589 DOI: 10.1038/s41598-024-56449-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2023] [Accepted: 03/06/2024] [Indexed: 03/12/2024] Open
Abstract
Non-syndromic permanent tooth agenesis affects a significant proportion of the population, especially if third molars are considered. Although tooth agenesis has been linked to a smaller craniofacial size, reduced facial convexity and a shorter skeletal face, the occlusal characteristics of individuals with tooth agenesis remain largely unexplored. Therefore, this study investigated potential associations between tooth agenesis and metric occlusal traits in 806 individuals (491 with 4.1 missing teeth per subject, including third molars, and 315 without any tooth agenesis). Dentoskeletal morphology was defined through anatomical landmarks on pre-treatment cephalometric radiographs. Multivariate regression models, adjusted for sex and age, showed that tooth agenesis was significantly associated with a reduced overjet, an increased interincisal angle, and shorter upper and lower dental arch lengths, but not with overbite. Moreover, apart from reduced tooth length and dentoalveolar effects, as the number of missing teeth increased the upper front teeth were progressively retruded according to the craniofacial complex and to the face. Thus, tooth agenesis has a substantial influence on dental and occlusal characteristics, as well as on the sagittal position and inclination of anterior teeth. These findings emphasize the necessity for personalized, multidisciplinary approaches in individuals with multiple agenesis to successfully meet treatment goals.
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Affiliation(s)
- Ragda Alamoudi
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010, Bern, Switzerland
| | - Georgios Kanavakis
- Department of Orthodontics and Pediatric Dentistry, UZB - University School of Dental Medicine, University of Basel, 4056, Basel, Switzerland
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Elias S Oeschger
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010, Bern, Switzerland
| | - Demetrios Halazonetis
- Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, 11527, Athens, Greece
| | - Nikolaos Gkantidis
- Department of Orthodontics and Dentofacial Orthopedics, University of Bern, 3010, Bern, Switzerland.
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Sano N, Sano R, Ohtani J, Shimoe S, Nikawa H, Murayama T, Kaku M. Entire Dental Arch Mesial Movement after Extraction of Maxillary Right Central Incisor due to Root Fracture Treated with Temporary Anchorage Devices. Bull Tokyo Dent Coll 2024; 65:19-27. [PMID: 38355116 DOI: 10.2209/tdcpublication.2023-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
This case report describes a 19-year-old woman with skeletal Class I crowding and an unsalvageable maxillary right central incisor. She visited our clinic with the chief complaint of mobility of the maxillary right central incisor due to a traffic accident. After extraction of the maxillary right central incisor, the space was closed orthodontically. All the maxillary right teeth were moved mesially with an elastic chain attached to a palatal lever arm which was connected to palatal temporary anchorage devices (TADs). After orthodontic treatment had been completed, the maxillary right lateral incisor and peg-shaped left lateral incisor were restored with a porcelain laminate veneer. The maxillary right canine was morphologically reshaped and built up with composite resin. Consequently, esthetically ideal occlusion and functional lateral guidance with uncontacted molars were obtained. These results show that mesial movement of the entire dental arch with TADs is a useful orthodontic treatment option in patients in whom the maxillary central incisor has been extracted.
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Affiliation(s)
| | | | | | - Saiji Shimoe
- Department of Anatomy and Functional Restorations, Division of Oral Health Sciences, Hiroshima University Graduate School of Biomedical Sciences
| | - Hiroki Nikawa
- Department of Oral Biology & Engineering, Division of Oral Health Sciences, Hiroshima University Graduate School of Biomedical Sciences
| | - Takeshi Murayama
- Department of Medical System Engineering, Division of Oral Health Sciences, Hiroshima University Graduate School of Biomedical Sciences
| | - Masato Kaku
- Department of Anatomy and Functional Restorations, Division of Oral Health Sciences, Hiroshima University Graduate School of Biomedical Sciences
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Nadelman P, Vargas EOA, Marañón-Vásquez GA, Vollú AL, Pithon MM, Castro ACRD, Maia LC. Occlusion development after premature loss of deciduous anterior teeth: preliminary results of a 24-month prospective cohort study. Dental Press J Orthod 2024; 29:e2423285. [PMID: 38451570 PMCID: PMC10914317 DOI: 10.1590/2177-6709.29.1.e2423285.oar] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Accepted: 01/29/2024] [Indexed: 03/08/2024] Open
Abstract
OBJECTIVE This study aimed to evaluate occlusion development after premature loss or extraction of deciduous anterior teeth, by means of a prospective cohort study. METHODS Fifteen infants and children aged 1 to 5 years old were longitudinally assessed (with loss or extraction of deciduous anterior teeth [n = 9], and without tooth losses [n = 6]). Photographs and dental casts at the baseline and after 24 months of follow-up were performed. Dental casts were scanned, and linear measurements were made on the digitalized models (missing tooth space, arch perimeter, arch length, arch width, intercanine length and intercanine width). The t-test was used for groups comparisons (α = 0.05). RESULTS Individuals' mean age at baseline was 2.93 (± 1.18) years. No statistically significant differences were observed in the missing tooth space in the group with tooth loss during the 24 months of follow-up (p > 0.05). Arch perimeter, arch length, arch width, intercanine length and intercanine width did not show differences between the groups (p > 0.05). Qualitative photographic evaluation revealed other changes in the dental arches and occlusion, such as exfoliation and eruption of deciduous teeth, eruption of permanent teeth, self-correction or establishment of malocclusion, among others. CONCLUSION The results suggest that the premature loss of deciduous anterior teeth does not affect the perimeter, length and width of the dental arches; however, other alterations that lead to malocclusion could be established.
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Affiliation(s)
- Patricia Nadelman
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
| | - Eduardo Otero Amaral Vargas
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
| | - Guido Artemio Marañón-Vásquez
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
| | - Ana Lúcia Vollú
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
| | - Matheus Melo Pithon
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
- Universidade Estadual do Sudoeste da Bahia, Departamento de Saúde (Jequié/BA, Brazil)
| | - Amanda Cunha Regal de Castro
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
| | - Lucianne Cople Maia
- Universidade Federal do Rio de Janeiro, Faculdade de Odontologia, Departamento de Odontopediatria e Ortodontia (Rio de Janeiro/RJ, Brazil)
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Vavetsi K, Panagopoulou O, Koromantzos P, Fryssira Η, Bobetsis SA, Emmanouil D, Bobetsis YA. Oral manifestations of nine individuals with Williams syndrome. A case series. Spec Care Dentist 2024; 44:438-449. [PMID: 37243919 DOI: 10.1111/scd.12881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 04/27/2023] [Accepted: 05/14/2023] [Indexed: 05/29/2023]
Abstract
AIMS Williams syndrome (WS) is a congenital developmental disorder characterized, mainly, by distinctive facial features, cardiovascular anomalies, growth delay and a typical neurobehavioral profile. The oral manifestations have not been sufficiently described and, therefore, the aim of the current study was to present the clinical, radiographic and microbiological findings of individuals with WS. METHODS AND RESULTS A series of nine WS individuals (seven females) with mean age 21 years-old were evaluated. A complete intraoral clinical examination, a radiographic analysis using panoramic and cephalometric x-ray and a supra- and sub-gingival microbiological profiling were performed. We observed abnormal tooth morphology, excessive interdental spacing, congenitally missing permanent teeth and malocclusion. High levels of DMFT were observed and gingivitis was present in all subjects. Bacteria related to periodontal disease were detected in dental plaque. Three patients were classified with a gingival phenotype type I according to the Maynard and Wilson classification. The sella turcica bridging was a novel finding for this group of patients. CONCLUSION Due to the elevated prevalence of gingivitis, caries and malocclusion, a multidisciplinary approach including dental follow-ups should be the standard of care in WS patients.
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Affiliation(s)
- Konstantina Vavetsi
- Dental Sciences, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Panagiotis Koromantzos
- Department of Periodontology, National and Kapodistrian University of Athens, Athens, Greece
| | - Ηelen Fryssira
- Department of Medical Genetics, National and Kapodistrian University of Athens, Athens, Greece
| | | | | | - Yiorgos A Bobetsis
- Department of Periodontology, National and Kapodistrian University of Athens, Athens, Greece
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15
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Zheng B, Ran J, He J, Al-Yafrusee ESAM, Zhao Y, Liu Y. Three-dimensional finite element analysis of the uprighting movement of mandibular mesially inclined second molars. Am J Orthod Dentofacial Orthop 2024; 165:314-320. [PMID: 37921729 DOI: 10.1016/j.ajodo.2023.09.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 09/01/2023] [Accepted: 09/01/2023] [Indexed: 11/04/2023]
Abstract
INTRODUCTION The mesially inclined mandibular second molar can be supported upright by the microimplant anchorage. This study established the finite element model to analyze the displacement trend and periodontal ligament (PDL) stress distribution of the uprighting mandibular second molar with the microimplant under different conditions. METHODS A 3-dimensional model of the mandible and dentition was established. The mesial inclination of the mandibular second molar was 30°, 45°, and 60°. Microimplants were implanted between the buccal side of the second premolar and the first molar and in the distal part of the mandibular second molar, respectively. Six groups were set, each loaded with 0.5 N of force. The second molar initial displacement trend and PDL stress distribution were evaluated. RESULTS The PDL stress of mandibular second molars in all groups was within the physiological limit, and the PDL stress of mandibular second molars in the distal implant groups was lower than that of mandibular second molars in the mesial implant groups. PDL stress concentration in the cervical area. Tooth displacement decreased as the mesial inclination angle of the second molars increased. The sagittal displacement of mesial implant groups was larger, and there was a tendency of mesiobuccal torsion when standing uprighting; the vertical displacement of distal implant groups was larger, and there was a tendency of distal lingual torsion when standing uprighting. CONCLUSIONS Distal microimplant has a better extrusion effect on the mesially inclined second molar, whereas mesial microimplant has a better effect on the distal movement. The optimal orthodontic force for microimplant traction on mesially inclined second molars is 0.5-0.8 N.
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Affiliation(s)
- Bowen Zheng
- Department of Orthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Junyi Ran
- Department of Orthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Jia He
- Department of Orthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Enas Senan Ali Mohammed Al-Yafrusee
- Department of Orthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Yang Zhao
- Department of Orthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China
| | - Yi Liu
- Department of Orthodontics, School and Hospital of Stomatology, China Medical University, Liaoning Provincial Key Laboratory of Oral Diseases, Shenyang, Liaoning, China.
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Duggal I, Zere E, Kumar Chaudhari P, Duggal R, Singh Rana S, Chauhan A. The challenging management of Moebius syndrome using orthodontic camouflage: A case report. Spec Care Dentist 2024; 44:450-457. [PMID: 37287118 DOI: 10.1111/scd.12888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 05/08/2023] [Accepted: 05/31/2023] [Indexed: 06/09/2023]
Abstract
Moebius syndrome (MS) is a rare congenital neuromuscular disorder characterized by weakness or paralysis (palsy) of abducens and facial nerves, or other cranial nerves which may be affected. Diagnosis, treatment, and dental management of MS patients are focused on treating manifestations like malocclusion, while catering to associated extraoral (neurologic, dermatologic, ocular) complications, aiming to improve their quality of life. Here, we report the case of a 9-year-old female patient with MS who underwent orthodontic camouflage using combined orthopedic-orthodontic therapy using a high-pull chin cup and fixed orthodontic appliance to improve skeletal mal-relation and facial appearance. The outcome displayed great improvement in function and better esthetics, improving not only the patient's but also the family's quality of life. A year's follow-up showed successful maintenance of the achieved results. A multidisciplinary approach in MS not only helps in overcoming the treatment challenges but also provides great psychosocial benefits to these patients.
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Affiliation(s)
- Isha Duggal
- Division of Orthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Edlira Zere
- Orthodontic and Craniofacial Department, School of Graduate Dentistry, Rambam Health, Care Campus, Technion, Faculty of Medicine, Haifa, Israel
| | - Prabhat Kumar Chaudhari
- Division of Orthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | - Ritu Duggal
- Division of Orthodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, New Delhi, India
| | | | - Anuj Chauhan
- Department of Medical Health and Family Welfare, Uttar Pradesh, India
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17
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Möhlhenrich SC, Kniha K, Peters F, Heitzer M, Szalma J, Prescher A, Danesh G, Hölzle F, Modabber A. Evaluation of bone contact area and intercondylar distance changes in orthognathic surgery - a comparison between BSSO and HSSO technique depending on mandibular displacement extent. Clin Oral Investig 2024; 28:182. [PMID: 38424318 PMCID: PMC10904418 DOI: 10.1007/s00784-024-05584-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2023] [Accepted: 02/25/2024] [Indexed: 03/02/2024]
Abstract
OBJECTIVES The present study aims to assess the impact of bilateral and high oblique sagittal split osteotomy (BSSO/HSSO), as well as displacement distances and directions on the expected and achievable bone contact area (BCA) and changes in the intercondylar distance (ICD). The primary question addressed is whether mandibular splitting through BSSO results in a greater BCA and/or ICD when compared to splitting through HSSO. MATERIALS AND METHODS Totally 80 mandibular displacements were performed on 20 fresh cadavers, for each subject, four splints were produces to facilitate mandibular advancement as well as setbacks of 4 and 8 mm. Pre- and postoperative CBCT scans were performed to plan the surgical procedures and to analyze the expected and achieved BCA and ICD. RESULTS Regarding the maximum mandibular displacement, the expected BCA for HSSO/BSSO were 352.58 ± 96.55mm2 and 1164.00 ± 295.50mm2, respectively, after advancement and 349.11 ± 98.42mm2 and 1344.70 ± 287.23mm2, respectively, after setback. The achieved BCA for HSSO/BSSO were 229.37 ± 75.90mm2 and 391.38 ± 189.01mm2, respectively, after advancement and 278.03 ± 97.65mm2 and 413.52 ± 169.52 mm2, respectively after setback. The expected ICD for HSSO/BSSO were 4.51 ± 0.73 mm and 3.25 ± 1.17 mm after advancement and - 5.76 ± 1.07 mm and - 4.28 ± 1.58 mm after setback. The achieved ICD for HSSO/BSSO were 2.07 ± 2.9 mm and 1.7 ± 0.60 mm after advancement and - 2.57 ± 2.78 mm and - 1.28 ± 0.84 mm after setback. Significant differences between the BCA after HSSO and BSSO were at each displacement (p < 0.001), except for the achieved BCA after 8-mm setback and advancement (p ≥ 0.266). No significant differences were observed regarding ICD, except for the expected ICD after 8-mm setback and advancement (p ≤ 0.037). CONCLUSIONS Compared to the virtual planning, the predictability regarding BCA and ICD was limited. ICD showed smaller clinical changes, BCA decreased significantly in the BSSO group. CLINICAL RELEVANCE BCA and ICD might have been less important in choosing the suitable split technique. in orthognathic surgery.
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Affiliation(s)
- Stephan Christian Möhlhenrich
- Department of Orthodontics, University of Witten/Herdecke, Alfred-Herrhausen Str. 45, 58455, Witten, Germany.
- Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany.
| | - Kristian Kniha
- Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Florian Peters
- Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Marius Heitzer
- Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Josef Szalma
- Department Oral and Maxillofacial Surgery, Medical School, University of Pécs, 1. Tüzér St., Pécs, 7623, Hungary
| | - Andreas Prescher
- Institute of Molecular and Cellular Anatomy, Medical Faculty of RWTH-Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Gholamreza Danesh
- Department of Orthodontics, University of Witten/Herdecke, Alfred-Herrhausen Str. 45, 58455, Witten, Germany
| | - Frank Hölzle
- Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
| | - Ali Modabber
- Department of Oral and Maxillofacial Surgery, University Hospital of Aachen, Pauwelsstraße 30, 52074, Aachen, Germany
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Curran K, De La Chapa J, Weidman A, Reddy A, Lear T, Oyer S. Bony Facial Trauma Score Predicts Clinical Outcomes in Facial Trauma. Facial Plast Surg Aesthet Med 2024; 26:180-184. [PMID: 37615597 DOI: 10.1089/fpsam.2023.0049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/25/2023] Open
Abstract
Background: The bony facial trauma score (BFTS) is a rubric used to assess the severity of facial trauma. Objectives: To compare the BFTS with relevant clinical outcomes while controlling for medical comorbidities and polytrauma. Methods: A retrospective review of facial trauma patients evaluated between 2017 and 2022 was conducted. While controlling for medical comorbidities and polytrauma, multivariate regression models were used to assess the relationship between BFTS and outcome variables such as length of stay (LOS) and malocclusion. Results: In total, 176 patients were included in the analysis. The average age was 36.5 years (standard deviation [SD] of 16.8), and 68.8% were male. The most common mechanism of injury was blunt force (92.6%) and the mean BFTS was 10.73 (SD of 11.05). BFTS was found to correlate with the following (p < 0.05): total LOS and ICU LOS, malocclusion, likelihood of requiring multiple surgeries, and diplopia. Conclusion: The BFTS is significantly correlated with multiple outcome variables while controlling for medical comorbidities and polytrauma.
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Affiliation(s)
- Kent Curran
- Department of Otolaryngology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Julian De La Chapa
- Department of Otolaryngology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Allan Weidman
- Department of Otolaryngology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Adithya Reddy
- Department of Otolaryngology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Taylor Lear
- Department of Otolaryngology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
| | - Samuel Oyer
- Department of Otolaryngology, University of Virginia School of Medicine, Charlottesville, Virginia, USA
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Uliana JC, Del' Agnese CC, Antoniazzi RP, Kantorski KZ. Autistic individuals have worse oral status than neurotypical controls: a systematic review and meta-analysis of observational studies. Clin Oral Investig 2024; 28:137. [PMID: 38321186 DOI: 10.1007/s00784-024-05500-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Accepted: 01/07/2024] [Indexed: 02/08/2024]
Abstract
OBJECTIVE To compare dental caries, oral hygiene, periodontal status, bruxism, malocclusion, tooth loss, and salivary alterations between autistic and typical developing individuals. MATERIAL AND METHODS Observational studies presenting clinical measures of oral outcomes between autism spectrum disorder (ASD) individuals and controls. EMBASE, LILACS, PubMed, PsycINFO, Scopus, Web of Science, Google Scholar, and ProQuest were searched up to June 26, 2023. Pairs of reviewers independently conducted study selection, data extraction, and assessments of methodological quality and certainty of evidence. Meta-analyses of standardized mean differences (SMD) and risk ratio (RR) were performed. RESULTS A total of 47 studies comprising 6885 autistic individuals were included in the review. Autistic individuals had significantly higher severity of dental-caries experience in primary teeth (SMD 0.29, 95%CI 0.02, 0.56), of dental plaque presence (SMD 0.59, 95%CI 0.24, 0.94), and of gingivitis (SMD 0.45, 95%CI 0.02, 0.88). Autistic individuals showed higher probability of occurrence of gingivitis (RR 1.34, 95%CI 1.08, 1.66,), bruxism (RR 4.23, 95%CI 2.32, 7.74), overjet (RR 2.16, 95%CI 1.28, 3.64), overbite (RR 1.62, 95%CI 1.02, 2.59), crossbite (RR 1.48, 95%CI 1.02, 2.13), and openbite (RR 2.37, 95%CI 1.46, 3.85), when compared to neurotypical individuals. Most estimates showed a small effect size with very low certainty of evidence. CONCLUSION Autistic individuals show worse oral health status than controls. CLINICAL RELEVANCE The findings reported herein can help to build health policies to better serve autistic individuals including prevention actions and access to specialized dental care.
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Affiliation(s)
- Jaíne C Uliana
- Oral Science, School of Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Catiusse C Del' Agnese
- Oral Science, School of Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Raquel P Antoniazzi
- Oral Science, School of Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil
| | - Karla Z Kantorski
- Oral Science, School of Dentistry, Federal University of Santa Maria, Santa Maria, RS, Brazil.
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20
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Au Yeung KSR, Shan Z, Sum FHKMH, Wong KWF, Lee HMG, Yang Y. Association between occlusal features and masticatory function in Hong Kong preschool children: a survey with one-year longitudinal follow-up. BMC Oral Health 2024; 24:187. [PMID: 38317203 PMCID: PMC10845510 DOI: 10.1186/s12903-024-03895-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2023] [Accepted: 01/15/2024] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND Mastication is important for breaking down food, aiding swallowing and nutrients absorption, and is therefore fundamental to a child's development. Studies have shown poor masticatory function to be associated with younger age and presence of caries. However, studies of the association between masticatory function and malocclusion yielded contradictory results. The aim of this study is therefore to investigate the association between three-dimensional occlusal features with masticatory function, among preschool children in Hong Kong. METHODS Self-administered questionnaires on masticatory function in three domains, namely general chewing difficulty, requiring help when eating different food types and increased preference for soft food were completed by parents. Information on non-nutritive sucking habits and basic demographics were also collected in the questionnaire. Clinical examinations were conducted to record three-dimensional occlusal features and presence of caries. Baseline investigations and one-year follow-ups were undertaken for 1,566 and 996 preschool children. Association of poor masticatory function with occlusal features, sucking habits and caries was investigated using chi-squared tests. Binomial logistic regressions were then carried out incorporating any significant factors identified. Longitudinal analysis of the one-year follow-up data was carried out to investigate whether improved occlusal features, sucking habits and caries resulted in better masticatory function. RESULTS In the cross-sectional study, the first domain of general chewing difficulty was associated with caries and thumb/digit sucking. The second domain of requiring help when eating different food types was associated with the male sex, younger age, caries and pacifier use. The last domain of increased preference for soft foods was associated with caries and thumb/digit sucking. Occlusal features, including abnormal overjet and unilateral permanent molars not in contact, were significantly associated with poor masticatory function in the bivariate analyses, but were not significant in the logistic regressions. In the longitudinal analysis, general chewing difficulty was found to improve in those of older age and those with resolved anterior crossbite. Less help was required to eat meat in those with fewer caries. Similarly, less help was required to eat food containing bones in those with reduced pacifier use. Preferences for eating soft foods was reduced in those who developed a normal overjet. CONCLUSIONS The study identified significant relationships between masticatory difficulties and factors associated with age, gender, active caries, and non-nutritive oral habits such as thumb/digit sucking and pacifier use. Younger children and males required more assistance with certain food types. Active caries and thumb/digit sucking habits contributed to general masticatory difficulties and preference for soft foods. The one-year follow-up indicated that improvement in masticatory function varies across age cohorts and were associated with improved occlusal features, such as resolution of anterior crossbite and normalized overjet, reduced pacifier use, and a decrease in the number of decayed teeth.
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Affiliation(s)
- King Sang Rita Au Yeung
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong, China
| | - Zhiyi Shan
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong, China
| | | | - Ka Wai Frank Wong
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong, China
| | - Hui Man Gillian Lee
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong, China
| | - Yanqi Yang
- Division of Paediatric Dentistry and Orthodontics, Faculty of Dentistry, University of Hong Kong, Hong Kong, China.
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Tekin G, Kose NS, Ugurlu M, Dereci O, Kosar YC, Gojayeva G, Caliskan G. Determining the safety margin of mandibular lingula in sagittal split ramus osteotomy. Surg Radiol Anat 2024; 46:159-166. [PMID: 38244088 DOI: 10.1007/s00276-023-03291-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 12/20/2023] [Indexed: 01/22/2024]
Abstract
PURPOSE The anatomical position of the lingula is clinically very important to prevent injuries during sagittal split ramus osteotomy. Our study aims to evaluate the localisation of the lingula by cone beam computed tomography (CBCT) and to compare the localisation of the lingula between malocclusion, gender, and lingula types. METHODS A retrospective study was conducted to evaluate the shape and location of the lingula using CBCT. A total of 250 CBCT images were included in this study. The lingula was classified as nodular, assimilated, truncated, or triangular type. Six defined distances from the top of the lingula were measured: anterior border of the ramus (L-A), posterior border of the ramus (L-P), internal oblique ridge (L-IOR), mandibular notch (L-N), and distal surface of the mandibular second molar (L-M2) and occlusal plane (L-OP). The measured distances were compared between gender, malocclusion, and lingula types. RESULTS The most common type of lingula was nodular (32.4%). The L-N, L-P, L-M2, and L-OP distances between genders were statistically higher in male patients than in female patients. The L-IOR, L-M2, and L-OP distances exhibited statistically significant differences found between malocclusions. No statistically significant difference was found when the distances of the lingula to the anatomical points were compared between the lingula types. CONCLUSION These variations in positioning of the lingula depending on the dysmorphoses are developing towards a systematic 3D examination before any mandibular osteotomy to precisely visualize the position and shape of the lingula.
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Affiliation(s)
- Gorkem Tekin
- Department of Oral and Maxillofacial Surgery, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey.
| | - Nesrin Saruhan Kose
- Department of Oral and Maxillofacial Surgery, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey
| | - Mehmet Ugurlu
- Department of Orthodontics, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey
| | - Omur Dereci
- Department of Oral and Maxillofacial Surgery, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey
| | - Yasin Caglar Kosar
- Department of Oral and Maxillofacial Surgery, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey
| | - Gunay Gojayeva
- Specialist in Oral and Maxillofacial Surgeon, Private Practice, Eskişehir, Turkey
| | - Gizem Caliskan
- Department of Oral and Maxillofacial Surgery, Eskişehir Osmangazi University, Faculty of Dentistry, Eskişehir, Turkey
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22
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Bishop M. Interceptive minimal intervention. Br Dent J 2024; 236:229-230. [PMID: 38388577 DOI: 10.1038/s41415-024-7137-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Accepted: 01/26/2024] [Indexed: 02/24/2024]
Affiliation(s)
- M Bishop
- Retired GDP, Hertford, United Kingdom.
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Leite SDC, Herkrath FJ, Vettore MV, Rebelo MAB, de Queiroz AC, Pereira JV, de Herkrath APCDQ. The association between malocclusion and health-related quality of life in adolescents: A mediation analysis. Eur J Oral Sci 2024; 132:e12960. [PMID: 37945535 DOI: 10.1111/eos.12960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2022] [Accepted: 10/22/2023] [Indexed: 11/12/2023]
Abstract
This study investigated the role of oral health-related functional limitations and social well-being, self-perceived health, psychosocial factors, and social support in mediating the impact of malocclusion on health-related quality of life (HRQoL). A school-based 6-month cohort study was conducted with 376 12-year-old deprived adolescents. Measures at baseline included malocclusion (DAI score), dental caries, sociodemographic characteristics, psychosocial traits (self-esteem, sense of coherence, oral health beliefs), and social support. The oral health-related functional limitations and symptoms (social well-being) domains of the CPQ11-14 , self-perceived health, and HRQoL (Kiddo-KINDL) were evaluated at the 6-month follow-up. Associations between observed and latent variables (social support, psychosocial factors, and HRQoL) were evaluated using structural equation modelling, according to the Wilson and Cleary theoretical model. Malocclusion was indirectly associated with worse HRQoL, mediated by functional limitations, social well-being, and self-perceived health. Better psychosocial status was directly associated with better HRQoL, and higher social support was indirectly associated with better HRQoL via psychosocial factors. Dental caries experience, female sex, and lower family income were indirectly associated with worse HRQoL. The impact of malocclusion on HRQoL was mediated by oral health-related functional limitations, social well-being, and self-perceived health. Sociodemographic and psychosocial factors, and social support also impacted HRQoL.
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Affiliation(s)
| | - Fernando José Herkrath
- Fundação Oswaldo Cruz, Instituto Leônidas e Maria Deane, Manaus, Amazonas, Brazil
- Superior School of Health Sciences, State University of Amazonas, Manaus, Amazonas, Brazil
| | - Mario Vianna Vettore
- Department of Health and Nursing Sciences, University of Agder, Kristiansand, Norway
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24
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Tang Y, Lu W, Wu W, Sun Q, Zhang Y, Xu T, Chen S, Liang W, Han B. Alveolar bone morphology in patients with palatally-displaced maxillary lateral incisors before and after orthodontic treatment: A cone-beam computed tomography study. Orthod Craniofac Res 2024; 27:55-63. [PMID: 37313756 DOI: 10.1111/ocr.12684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 04/29/2023] [Accepted: 05/31/2023] [Indexed: 06/15/2023]
Abstract
INTRODUCTION Palatal displacement of maxillary anterior teeth is common in clinical practice. Previous studies have reported that the labial bone around palatally-displaced incisors is thinner than that around normally-placed teeth. Therefore, it is necessary to elucidate alveolar bone changes after alignment to guide orthodontic treatment. In this study, we investigated the alveolar bone changes around palatally-displaced maxillary lateral incisors before and after treatment, and the effects of extraction and age using cone-beam computed tomography. METHODS In this retrospective study, 55 patients with unilateral palatally-displaced maxillary lateral incisors were included. Three-dimensional alveolar bone changes were measured at three levels (25%, 50% and 75% of the root length) using cone-beam computed tomography. Group comparisons were made between displaced and control teeth, extraction and non-extraction groups, and adult and minor groups. RESULTS After orthodontic treatment, labiopalatal and palatal alveolar bone widths decreased at all measured levels. Labial alveolar bone width increased significantly at P25, but decreased at P75. Concavity decreased, while tooth-axis angle, tooth length, B-CEJ and P-CEJ increased. Changes in LB and LP at P75, B-CEJ and P-CEJ were statistically significant. After treatment, the tooth-axis angle on the PD side increased by 9.46°. The change in tooth-axis angle on the PD side was significantly smaller, and LB and LP decreased more at P75, in the extraction group. CONCLUSIONS Compared to the control teeth, alveolar bone thickness and height for the displaced teeth decreased more significantly after treatment. Tooth extraction and age also influenced alveolar bone changes.
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Affiliation(s)
- Yao Tang
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Wenhsuan Lu
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Weiqiang Wu
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Qiannan Sun
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Yunfan Zhang
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Tianmin Xu
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Si Chen
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Wei Liang
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
| | - Bing Han
- Department of Orthodontics, Cranial-Facial Growth and Development Center, Peking University School and Hospital of Stomatology, Beijing, People's Republic of China
- NMPA Key Laboratory for Dental Materials, National Center for Stomatology, National Clinical Research Center for Oral Diseases, National Engineering Research Center of Oral Biomaterials and Digital Medical Devices, Research Center of Engineering and Technology for Computerized Dentistry Ministry of Health, Beijing, China
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Shetty RM, Shetty M, Shetty NS, Deoghare A, Walia T, Berdouses E, Shetty SR, Shetty S. Evaluation of RURS elbow guard in the management of thumb-sucking habit in children with and without intellectual disability. Eur Arch Paediatr Dent 2024; 25:75-84. [PMID: 38281253 DOI: 10.1007/s40368-023-00858-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 12/11/2023] [Indexed: 01/30/2024]
Abstract
BACKGROUND Digit sucking is a common oral habit among many children, which involves placing the thumb/finger into the mouth, which can cause malocclusion in mixed and permanent dentition. AIM To evaluate the efficacy of the RURS elbow guard in the management of thumb-sucking habits in children with intellectual disabilities and those without in terms of the mean duration of appliance therapy. The secondary objective was to compare the RURS elbow guard with an intraoral crib in healthy children (without intellectual disabilities) to manage the habit of thumb-sucking. DESIGN Children with intellectual disabilities and those without between the age of 4 and 16 years were included in the study and categorised into three groups, namely group I (50 normal children; intraoral crib appliance), group II (50 normal children; RURS elbow guard) and group III (50 children with intellectual disabilities; RURS elbow guard). RESULTS The mean duration of appliance therapy for groups I, II and III were 200.20 ± 20.43 days, 204.34 ± 20.56 days, and 218.43 ± 15.66 days, respectively (p < 0.001). The differences in the mean duration between group I and group II were statistically non-significant, with statistically significant differences between group I and group III (p < 0.001) and between group II and group III (p < 0.05). CONCLUSION The RURS elbow guard was found to be an efficient appliance in treating thumb-sucking among children who had mild to moderate intellectual disabilities. RURS elbow guard was equally efficient as an intraoral crib appliance in managing thumb-sucking habits in children without intellectual disabilities.
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Affiliation(s)
- R M Shetty
- Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman, UAE.
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, UAE.
- Department of Pediatric and Preventive Dentistry, Adjunct Faculty, Sharad Pawar Dental College and Hospital, Datta Meghe Institute of Higher Education and Research (Declared as Deemed-to-be University), Wardha, Maharashtra, India.
| | - M Shetty
- A. B. Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to Be University), Deralakatte, Mangalore, Karnataka, India
| | - N S Shetty
- A. B. Shetty Memorial Institute of Dental Sciences, Nitte (Deemed to Be University), Deralakatte, Mangalore, Karnataka, India
| | - A Deoghare
- Department of Pediatric and Preventive Dentistry, Chhattisgarh Dental College and Research Institute, Rajnandgaon, Chhattisgarh, India
| | - T Walia
- Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman, UAE
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, UAE
| | - E Berdouses
- Department of Clinical Sciences, College of Dentistry, Ajman University, Ajman, UAE
- Center of Medical and Bio-Allied Health Sciences Research, Ajman University, Ajman, UAE
| | - S R Shetty
- Department of Oral and Cranio-Facial Health Sciences, University of Sharjah, Sharjah, UAE
| | - S Shetty
- Department of Preventive and Restorative Dentistry, College of Dental Medicine, University of Sharjah, Sharjah, UAE
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Affiliation(s)
- Reena Wadia
- Specialist Periodontist at RW Perio and Associate Specialist at King´s College Dental Hospital, London, UK.
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27
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Radwan ES, Maher A, Montasser MA. Effect of functional appliances on sleep-disordered breathing in Class II division 1 malocclusion children: Randomized controlled trial. Orthod Craniofac Res 2024; 27:126-138. [PMID: 37522361 DOI: 10.1111/ocr.12696] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2022] [Revised: 05/27/2023] [Accepted: 07/12/2023] [Indexed: 08/01/2023]
Abstract
OBJECTIVES A randomized controlled trial was undertaken to investigate the orthopaedic effect of functional appliances on the pharyngeal airway space and nocturnal breathing of children with skeletal class II due to mandibular retrusion. MATERIALS AND METHODS Forty patients were randomized into a 1:1 ratio study (Twin block) group and a control (fixed appliance) group. Each group included equal numbers of boys and girls. Diagnosis with sleep-disordered breathing was not an inclusion criterion. The duration of the trial was 12 months (T0 - T12). Eligibility criteria included skeletal Class II division 1 malocclusion with mandibular retrognathism, SNA ≥82, SNB ≤78, ANB ≥4, overjet ≥6 mm, and patients in circumpubertal stage CVM2 and CVM3. The main outcomes were pharyngeal airway volume, oxygen desaturation index (ODI), and maximum expiratory pressure (MEP), while the secondary outcomes were skeletal and dental changes of the maxilla and mandible. Randomization was accomplished with random blocks of 20 patients with allocation concealed in sequentially numbered, opaque, and sealed envelopes. Blinding was only applicable for data analysis of radiographic measurements and data extracted from the pulse oximeter. RESULTS The mean age of the patients was 10 ± 1.5 and 10 ± 1.2 at (T0) for the Twin Block and the control groups, respectively. The changes in the oropharyngeal (2.66 cc and 0.056; P = .03) and nasopharyngeal (1.3 cc and 0.84; P = .053) airway volumes for the Twin block and control groups, respectively, were significantly different for the oropharynx. There was a significant decrease in ODI by [median -3.55 (-5.05 to 0.50); P ≤ .001] and a significant increase [median 45 (0.0-110); P ≤ .001] in MEP for the Twin block group. A significant inverse correlation (r = -.589; P = .006) could be found between the total volume of the oropharynx and ODI. No serious harm was observed. CONCLUSIONS The Twin block group showed significant change in oropharyngeal airway volume and improvement of nocturnal breathing. REGISTRATION This trial was registered at https://www. CLINICALTRIALS gov, registration number NCT04255511.
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Affiliation(s)
- E S Radwan
- Department of Orthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - A Maher
- Department of Orthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
| | - M A Montasser
- Department of Orthodontics, Faculty of Dentistry, Mansoura University, Mansoura, Egypt
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Cenzato N, Crispino R, Galbiati G, Giannini L, Bolognesi L, Lanteri V, Maspero C. Premature loss of primary molars in children: space recovery through molar distalisation. A literature review. Eur J Paediatr Dent 2024; 25:1. [PMID: 38353522 DOI: 10.23804/ejpd.2024.2110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2024]
Abstract
AIM The integrity of primary dentition is essential in the development of the jaws and permanent occlusion. The consequences of a premature loss of primary molars are: space loss, crowding, risk of impaction of the permanent teeth, ectopic eruption, anomalous inclination of the teeth adjacent to the loss molar, reduction of arch length. The mesial displacement of the posterior permanent teeth during eruption can cause a loss of space, which can be regained with orthodontic appliances. Therefore, a careful diagnosis is of great importance to be able to decide what appliance is indicated to recover from this situation. Molar distalisation consists in displacing permanent molars distally, allowing them to reach class I relationship and to recover the correct space for the second bicuspids when the second deciduous molar has been lost early. METHODS The aim of this study is to carry out a narrative literature review regarding the different appliances and their effectiveness in regaining space after premature loss of the upper primary molars. CONCLUSION The paediatric dentist should be aware of the advantages and disadvantages related to each device and select the most appropriate distalisation appliance based on an individual plan of diagnosis and a careful treatment. The distalisation of the upper molar must be adequately stabilised and so it is important to consider also some retainers such as Nance's appliance, the Palatal Plate, the extraoral traction, the utility arch, or II Class elastic bands.
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Affiliation(s)
- N Cenzato
- Università degli Studi di Milano, Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Milan, Italy - Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Maxillo-Facial Surgery and Dental Unit, Milan, Italy
| | - R Crispino
- Università degli Studi di Milano, Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Milan, Italy - Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Maxillo-Facial Surgery and Dental Unit, Milan, Italy
| | - G Galbiati
- Università degli Studi di Milano, Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Milan, Italy - Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Maxillo-Facial Surgery and Dental Unit, Milan, Italy
| | - L Giannini
- Università degli Studi di Milano, Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Milan, Italy - Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Maxillo-Facial Surgery and Dental Unit, Milan, Italy
| | - L Bolognesi
- UNIMORE Università degli Studi di Modena e Reggio Emilia, Dipartimento Chirurgico Medico Odontoiatrico e di Scienze Morfologiche, Unità Complessa di Odontoiatria e Chirurgia Maxillo Facciale, Modena, Italy
| | - V Lanteri
- UNIMORE Università degli Studi di Modena e Reggio Emilia, Dipartimento Chirurgico Medico Odontoiatrico e di Scienze Morfologiche, Unità Complessa di Odontoiatria e Chirurgia Maxillo Facciale, Modena, Italy
| | - C Maspero
- Università degli Studi di Milano, Dipartimento di Scienze Biomediche, Chirurgiche e Odontoiatriche, Milan, Italy - Fondazione IRCCS Cà Granda Ospedale Maggiore Policlinico, Maxillo-Facial Surgery and Dental Unit, Milan, Italy
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Iftikhar N, Khalid O, Ghori U. Sturge-Weber syndrome with massive macroglossia and anterior neck space infection- a case report and review of literature. J PAK MED ASSOC 2024; 74:394-397. [PMID: 38419245 DOI: 10.47391/jpma.9033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2024]
Abstract
Sturge- Weber syndrome (SWS), is a rare neuro-cutaneous angiomatosis which affects male and females alike. The clinical manifestations include angiomas, haemangiomas of the lips, tongue and palatine region. The oral manifestations are usually unilateral and are susceptible to bleed. Patients can also present with macroglossia and maxillary bone hypertrophy which can lead to malocclusion of the oral cavity. Food accumulation due to occlusion can cause growth of bacteria which can intensify infections and can cause gingival hyperplasia. A case of a middle-aged 39 year old female was reported in the Ziauddin Hospital, Karachi on 2nd of February,2022 with the presenting complaints of intermittent fever and drowsiness for 10 days. On examination she had massive tongue enlargement, drooling, malocclusion, difficulty in eating and breathing. She was a known case of Sturgeweber syndrome. Based on the clinical and radiological findings, she was managed along the lines of prelaryngeal soft tissue and submandibular infection.
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Affiliation(s)
| | - Osama Khalid
- Department of Infectious Disease, Ziauddin Hospital, Karachi, Pakistan
| | - Uzma Ghori
- Department of Medicine, Ziauddin Hospital, Karachi, Pakistan
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Mayahara K, Kawai S, Fujisaki T, Shimizu N. Dental, skeletal and soft tissue changes after bimaxillary protrusion treatment with temporary anchorage devices using different retraction mechanics. BMC Oral Health 2024; 24:135. [PMID: 38280986 PMCID: PMC10821290 DOI: 10.1186/s12903-024-03927-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Accepted: 01/23/2024] [Indexed: 01/29/2024] Open
Abstract
BACKGROUND Temporary anchorage devices (TADs), which are absolute anchorage, are used for retraction of the anterior teeth in cases of severe bimaxillary protrusion. There have been a number of studies regarding anterior tooth movement using TADs performed by simulation systems and actual treated materials with sliding mechanics. However, there are few studies regarding anterior tooth movement using TADs treated by loop mechanics The purpose of this study was to investigate the effect of TADs in anterior tooth movement using loop mechanics performed in actual cases of bimaxillary protrusion. METHODS This study was performed in 20 adult patients with severe bimaxillary protrusion treated with four bicuspid extraction with sliding or loop mechanics (n = 10 in each mechanics) using TADs. The skeletal and denture patterns, as well as the soft tissue profile from pre-treatment (T0) and post-treatment (T1) lateral cephalograms, were compared between sliding and closing loop mechanics. RESULTS The use of TADs is useful for retraction of anterior teeth without molar anchorage loss. in sliding and loop mechanics. The upper anterior teeth were less lingual tipped and lower anterior teeth were more upright resulting in less clockwise rotation of the occlusal plane in loop mechanics compared to sliding mechanics. CONCLUSION An oblique retraction force vector with a lower point of application causes less intrusion and more lingual tipping of upper anterior teeth as well as more clockwise rotation of the occlusal plane compared to a parallel retraction force vector.
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Affiliation(s)
- Kotoe Mayahara
- Department of Orthodontics, Nihon University School of Dentistry, 1-8-13, Kanda Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan
- Division of Clinical Research, Dental Research Center, Nihon University School of Dentistry, Tokyo, Japan
| | | | | | - Noriyoshi Shimizu
- Department of Orthodontics, Nihon University School of Dentistry, 1-8-13, Kanda Surugadai, Chiyoda-ku, Tokyo, 101-8310, Japan.
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31
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El Osta N, Chambon P, Dol G, Soulier-Peigue D, Hennequin M. Does malocclusion affect ingestion: a systematic review. Clin Oral Investig 2024; 28:111. [PMID: 38265668 DOI: 10.1007/s00784-024-05508-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 01/10/2024] [Indexed: 01/25/2024]
Abstract
OBJECTIVES The multifactorial aspect of malocclusions and their consequences on ingestion function is rarely described in the literature. The aims of this review are (i) to investigate the relationship between oral ingestion and malocclusion and (ii) to gather malocclusion tools that could help screen subjects at risk of malocclusion-related ingestion disorders. MATERIAL AND METHODS A systematic review was performed following the Preferred Reporting Items for Systematic Reviews and Meta-Analysis Protocol (PRISMA-P 2015) guidelines. The analysis methods and inclusion criteria have been documented in a protocol published in the Prospective International Register of Systematic Reviews (PROSPERO) under the registration number CRD42023395840. The bibliographic search involved the PubMed®, Cochrane and PROSPERO databases. RESULTS A total of 29 articles published between 2007 and 2023 were retained by the search criteria for the qualitative synthesis. Twenty of the studies found that the severity of malocclusion has a negative impact on oral ingestion. This review highlights that malocclusion and ingestion impairments are associated but it is not possible to determine causality due to the observational approach of many of the studies. CONCLUSION Malocclusion has a negative impact on ingestion function. During orthodontic consultations, particular interest should be directed towards chewing, biting, and swallowing disorders, which can affect patients' nutritional status. This review offers arguments for designing further studies assessing the extent to which malocclusions may affect nutritional status. CLINICAL RELEVANCE Orthodontic treatment should focus on improving patients' ingestion.
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Affiliation(s)
- Nada El Osta
- Centre de Recherche en Odontologie Clinique (CROC), Université Clermont Auvergne, F-63000, Clermont-Ferrand, France.
| | - Pauline Chambon
- CHU of Clermont-Ferrand, Service d'Odontologie, Clermont-Ferrand, France
| | - Gaëlle Dol
- Centre de Recherche en Odontologie Clinique (CROC), Université Clermont Auvergne, F-63000, Clermont-Ferrand, France
- CHU of Clermont-Ferrand, Service d'Odontologie, Clermont-Ferrand, France
| | | | - Martine Hennequin
- Centre de Recherche en Odontologie Clinique (CROC), Université Clermont Auvergne, F-63000, Clermont-Ferrand, France
- CHU of Clermont-Ferrand, Service d'Odontologie, Clermont-Ferrand, France
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Zheng X, Ding S, Mei Q, Wu C, Zhang Q, Fu C, Han Q, Jin S, Yu R, Yu M, Ye Z, Shen J, Xu J, Liu X, Wu T. A cross-sectional study: correlation of forehead morphology and dentoskeletal malocclusion in Chinese people. BMC Oral Health 2024; 24:50. [PMID: 38191414 PMCID: PMC10775421 DOI: 10.1186/s12903-023-03795-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 12/18/2023] [Indexed: 01/10/2024] Open
Abstract
BACKGROUND The lateral profile is an important indicator of facial attractiveness. This study explored the general characteristics of the forehead profile and protrusion, and their relationship with related factors in structure and development. METHODS Four hundred fourteen Chinese participants in the Yangtze River Delta region were involved. Including 206 males (17.15 ± 7.68 years old) and 208 females (18.35 ± 8.06 years old); 94 children (8.54 ± 2.21 years old, ranging from 4 to 12 years old), 166 adolescents (14.83 ± 1.50 years old, ranging from 13 to 17 years old), and 154 adults (25.52 ± 4.89, 18 years or older). The frontal section of the forehead was used to explore its shape. The straight distance between the vertical line of the FH plane through the nasal root point and its parallel line, which is tangential to the forehead, indicates the forehead prominence. Frontal sinus width was measured using the method described by Mahmood. RESULTS The general shape of the forehead was straight and slightly bulged near the eyebrow arch in males but rounder in females. The average forehead protrusion in males was higher than that in females in adults. Significant differences in forehead protrusion between the dentoskeletal classifications and growth phases were notable. Frontal protrusion significantly correlated with frontal sinus depth, especially in males, adults, Class I, and those whose convex points were located in the lower section of the forehead. CONCLUSIONS Age, race, and sex affect the forehead protrusion and frontal sinus width. Forehead protrusion may be an indicator of dentoskeletal deformities in the early stage. And dentoskeletal deformities may impair the correlation between the frontal sinuses and forehead protrusion during development. TRIAL REGISTRATION This retrospective, cross-sectional study was reviewed and approved by the Research Ethical Committee (T2020008), and registered at ClinicalTrial.gov with an identified number (ChiCTR2100041913).
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Affiliation(s)
- Xiuyun Zheng
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Siqi Ding
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Qin Mei
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Chuan Wu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Qunyan Zhang
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Chunfeng Fu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Quancheng Han
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Shiyu Jin
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Ruiqi Yu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Muchen Yu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Zixian Ye
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Jun Shen
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Jianguang Xu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China
| | - Xiaoyu Liu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China.
| | - Tingting Wu
- Department of Orthodontics, College & Hospital of Stomatology, Anhui Medical University, Key Lab. of Oral Diseases Research of Anhui Province, 69 Meishan Road, Shushan District, Hefei, 230032, China.
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Zhang Y, Zheng J, Wu Q, Jiang T, Xiao H, Du Y, Qi Y, Jin Z, Li F. Three-dimensional spatial analysis of temporomandibular joint in adolescent Class II division 1 malocclusion patients: comparison of Twin-Block and clear functional aligner. Head Face Med 2024; 20:4. [PMID: 38184631 PMCID: PMC10770962 DOI: 10.1186/s13005-023-00404-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Accepted: 12/18/2023] [Indexed: 01/08/2024] Open
Abstract
BACKGROUND Our study aimed to use three-dimensional (3D) spatial morphological measurement methods to compare the influence of Twin-Block and clear functional aligners on the temporomandibular joint (TMJ) of adolescent Class II division 1 malocclusion mandibular retraction patients. We also aimed to explore the similarities and differences in the effects on the TMJ upon using Twin-Block and clear functional aligner. METHODS Cone-beam computed tomography (CBCT) data of 49 patients with Class II division 1 malocclusion (Twin-Block group: 24; clear functional aligner group: 25) were collected before and after functional orthodontic treatment, and a 3D model of the TMJ was reconstructed using MIMICS 21.0 software. Eighteen measurement parameters, including the anterior, superior, and posterior joint spaces, were measured and compared using the 3D model. RESULTS After the two groups underwent functional appliance treatment, the height, volume, and surface area of the condyle, length of the mandibular ramus and mandibular length increased; The retro-displaced condyle moved to the middle position of the articular fossa, while the rest of the condylar position did not change significantly. Remodeling of the articular fossa after treatment was not evident. The superior joint space of the clear functional aligner group increased, but there was no significant change after Twin-Block appliances treatment. CONCLUSIONS Both appliances promote condylar growth and sagittal and vertical development of the mandible in adolescent Class II division 1 malocclusion mandibular retraction patients. The length of the mandibular ramus showed a more significant increase following treatment with the Twin-Block appliances than with clear function aligners.
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Affiliation(s)
- Yueying Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Jiajing Zheng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Qiuyue Wu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Tianlu Jiang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Hua Xiao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Yusen Du
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Yizhe Qi
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China
| | - Zuolin Jin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China.
| | - Feifei Li
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases & Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, The Third Affiliated Hospital of Air Force Medical University, Xian, 710032, Shaanxi, People's Republic of China.
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Medina-Vega M, Ibarra MCB, Quezada-Conde MDC, Reis INRD, Frias AC, Raggio DP, Michel-Crosato E, Mendes FM, Pannuti CM, Romito GA. Periodontal status among 12-year-old schoolchildren: a population-based cross-sectional study in Quito, Ecuador. Braz Oral Res 2024; 38:e002. [PMID: 38198302 DOI: 10.1590/1807-3107bor-2024.vol38.0002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Accepted: 06/15/2023] [Indexed: 01/12/2024] Open
Abstract
This study aimed to estimate the prevalence and extent of bleeding on probing and calculus in 12-year-old schoolchildren of Quito, Ecuador, and evaluate the associated factors. We conducted an epidemiological survey with a representative sample of 1,100 12-year-old schoolchildren from public schools in the urban area of Quito, Ecuador. We assessed the periodontal health using the Community Periodontal Index (CPI). The prevalence and extent of the periodontal condition was based on the presence of at least one site with bleeding on probing (BOP), and the presence of dental calculus was also evaluated. We used univariate and multiple multilevel Poisson regression analyses to verify the association between the independent variables and the number of sextants with BOP and calculus. The prevalence of BOP and calculus was 92% and 69.9%, respectively. The adjusted mean of the affected sextants was 4.3 and 2.2 for BOP and calculus, respectively. The mother's schooling and malocclusion were associated with the number of sextants with bleeding. The mother's schooling and dental caries experience were associated with calculus. Gingival bleeding and the presence of dental calculus are highly prevalent in 12-year-old schoolchildren from Quito. Gingival bleeding is associated with maternal education and malocclusion, and dental calculus is associated with maternal education and dental caries.
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Affiliation(s)
| | | | | | | | - Antonio Carlos Frias
- Universidade de São Paulo - USP, School of Dentistry, Department of Stomatology, São Paulo, SP, Brazil
| | - Daniela Prócida Raggio
- Universidade de São Paulo - USP, School of Dentistry, Department of Pediatric Dentistry, São Paulo, SP, Brazil
| | - Edgard Michel-Crosato
- Universidade de São Paulo - USP, School of Dentistry, Department of Community Dentistry, São Paulo, SP, Brazil
| | - Fausto Medeiros Mendes
- Universidade de São Paulo - USP, School of Dentistry, Department of Pediatric Dentistry, São Paulo, SP, Brazil
| | - Claudio Mendes Pannuti
- Universidade de São Paulo - USP, School of Dentistry, Department of Stomatology, São Paulo, SP, Brazil
| | - Giuseppe Alexandre Romito
- Universidade de São Paulo - USP, School of Dentistry, Department of Stomatology, São Paulo, SP, Brazil
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Xu S, Liu Y, Hou Y, Li Y, Ge X, Wang L, Zhao L, Ma W. Maxillofacial growth changes after maxillary protraction therapy in children with class III malocclusion: a dual control group retrospective study. BMC Oral Health 2024; 24:7. [PMID: 38172784 PMCID: PMC10763385 DOI: 10.1186/s12903-023-03790-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Accepted: 12/16/2023] [Indexed: 01/05/2024] Open
Abstract
PURPOSE To investigate the balance between post-treatment effect and continued nature growth after maxillary protraction treatment in patients with skeletal class III malocclusion. METHODS 31 patients aged 8.79 ± 1.65 years with skeletal Class III malocclusion had been treated with maxillary protraction and the treatment lasted an average of 1.16 years. The average observation duration after treatment in the maxillary protraction group was 2.05 ± 0.39 years. In the control groups, a sample of 22 patients (9.64 ± 2.53 years) with untreated skeletal class III malocclusion and 24 patients (9.28 ± 0.96 years) with skeletal class I malocclusion were matched to the treatment group according to age, sex and observation period. The mean observation interval of the control groups was 2.39 ± 1.29 years in the class III group and 1.97 ± 0.49 years in the class I group. RESULTS The active orthopedic treatment effect showed a opposite trend to the natural craniomaxillofacial growth effect after treatment in many aspects. In the observation duration of treatment group, decrease in ANB, Wits appraisal and BAr-AAr were statistically significant compared to class I control group (p < 0.001), and there was a significant increase in NA-FH (P < 0.001) which was contrary to class III control group. Treatment group presented a significant increase in Gn-Co (P < 0.01) and Co-Go (P < 0.001), except for changes in the extent of the mandibular base (Pog-Go, P = 0.149) compared to class I control group. The vertical maxillomandibular skeletal variables (Gonial; MP-SN; MP-FH; Y-axis) in treatment group decreased significantly compared to those in class III control group (P < 0.01). U1-SN and L1-MP showed a significant increase, which was similar to the class I group (P > 0.05), and overjet decreased significantly relative to both of the two control groups (P < 0.05). CONCLUSION Maxillary protraction therapy led to stable outcomes in approximately 77.42% of children with Class III malocclusion approximately 2 years after treatment. Unfavorable skeletal changes were mainly due to the greater protrusion of the mandible but maxillary protraction did have a certain degree of postimpact on the mandibular base. Protraction therapy does not fundamentally change the mode of maxillary growth in Class III subjects except for the advancement of the maxilla. Craniomaxillofacial region tend to restabilize after treatment and lead to skeletal growth rotation and more dentoalveolar compensation.
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Affiliation(s)
- Shukui Xu
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Yang Liu
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Yan Hou
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Yinghui Li
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Xiaolei Ge
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Linna Wang
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Liru Zhao
- Department of Orthodontics, Hebei Key Laboratory of Stomatology & Hebei Clinical Research Center for Oral Diseases, School and Hospital of Stomatology, Hebei Medical University, Shijiahzuang, 050017, China
| | - Wensheng Ma
- Department of Orthodontics, School of Medicine, Tianjin Stomatological Hospital, Nankai University, Tianjin, 300041, China.
- Tianjin Key Laboratory of Oral and Maxillofacial Function Reconstrution, Tianjin, 300041, China.
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Wadia R. Awareness of the orthodontic-restorative interface. Br Dent J 2024; 236:109. [PMID: 38278904 DOI: 10.1038/s41415-024-6772-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2024]
Affiliation(s)
- Reena Wadia
- Specialist Periodontist at RW Perio and Associate Specialist at King´s College Dental Hospital, London, UK.
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Miyano T, Ayukawa Y, Anada T, Takahashi I, Furuhashi H, Tokunaga S, Hirata A, Nakashima N, Kato K, Fukuda H. Association Between Reduced Posterior Occlusal Contact and Alzheimer's Disease Onset in Older Japanese Adults: Results from the LIFE Study. J Alzheimers Dis 2024; 97:871-881. [PMID: 38160352 PMCID: PMC10894584 DOI: 10.3233/jad-230449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/13/2023] [Indexed: 01/03/2024]
Abstract
BACKGROUND An association between poor oral health and cognitive decline has been reported. Most of these studies have considered the number of teeth as a criterion, only a few studies have analyzed the relationship between occlusal status and Alzheimer's disease (AD). OBJECTIVE To elucidate whether posterior occlusal contact is associated with AD, focusing on the Eichner classification, among an older population aged 65 years or older in Japan. METHODS This study used monthly claims data of National Health Insurance in Japan from April 2017 to March 2020. The outcome was newly diagnosed AD defined according to ICD-10 code G30. The number of teeth was estimated by dental code data, and occlusal contact was divided into three categories, namely A, B, and C, according to the Eichner classification. Multivariate Cox proportional hazards models were used to analyze the association between a new diagnosis of AD and the Eichner classification. RESULTS A total of 22,687 participants were included, 560 of whom had newly diagnosed AD during a mean follow-up period of 12.2 months. The AD participants had a lower proportion of Eichner A and a higher proportion of Eichner C. After adjusting for covariates, hazard ratios (95% confidence intervals) with Eichner B and C were 1.34 (1.01-1.77) and 1.54 (1.03-2.30), respectively. CONCLUSION In older people aged≥65 years old, reduced posterior occlusal contact as well as tooth loss have an impact on AD. This study emphasizes the importance of paying attention to occlusal contacts to reduce the risk of AD.
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Affiliation(s)
- Takashi Miyano
- Department of Applied Chemistry, Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, Japan
- Nissan Chemical Corporation, Tokyo, Japan
| | - Yasunori Ayukawa
- Division of Oral Rehabilitation, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Takahisa Anada
- Department of Chemistry and Biochemistry, Graduate School of Engineering, Kyushu University, Fukuoka, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, Fukuoka, Japan
| | - Ichiro Takahashi
- Section of Orthodontics and Dentofacial Orthopedics, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
| | - Hiroko Furuhashi
- Department of Epidemiology and Public Health, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Shoji Tokunaga
- Medical Information Center, Kyushu University Hospital, Fukuoka, Japan
| | - Akie Hirata
- Medical Information Center, Kyushu University Hospital, Fukuoka, Japan
| | - Naoki Nakashima
- Medical Information Center, Kyushu University Hospital, Fukuoka, Japan
| | - Koichiro Kato
- Department of Applied Chemistry, Graduate School of Systems Life Sciences, Kyushu University, Fukuoka, Japan
- Center for Molecular Systems, Kyushu University, Fukuoka, Japan
| | - Haruhisa Fukuda
- Department of Health Care Administration and Management, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan
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Zhao J, Xia S, Yue S, Luo Y, Shen P, Yang C. Factors Influencing Mandibular Deviation: A Retrospective Clinical Study. J Craniofac Surg 2024; 35:e28-e31. [PMID: 38294302 DOI: 10.1097/scs.0000000000009710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 06/28/2023] [Indexed: 02/01/2024] Open
Abstract
This study aimed to investigate the correlation between mandibular deviation (MD) and possible clinical factors in patients with anterior disc displacement (ADD). This retrospective clinical study enrolled 296 patients with ADD, diagnosed using magnetic resonance imaging, from 2015 to 2018. The clinical symptoms and medical histories of these patients were carefully examined and recorded. Mandibular deviation was the primary outcome variable confirmed by a combination of clinical examination and facial photographs or posteroanterior cephalograms. The primary predictor variable was ADD staging. Secondary predictor variables included condylar height and distance of disc displacement. Other predictor variables were age, sex, disease course, oral parafunctions, depression, and bone mineral density. We used logistic regression to examine the correlation between the MD and all predictor variables. The χ2 test and analysis of variance were used to exclude the correlation between the predictor variables. In this study, the prevalence of MD was 77% among 278 patients with ADD. Bilateral ADD staging significantly contributed to MD on both sides. The odds ratio increased with the deterioration of disc displacement. The present study demonstrated that the ADD staging influences the condylar height and MD, and that articular disk position should be considered while treating MD.
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Affiliation(s)
- Jiong Zhao
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
| | - Simo Xia
- Transform Studio for Endodontium Stem Cell, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine
| | - Shijing Yue
- Department of Oral Surgery, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine
| | - Yi Luo
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shangai, China
| | - Pei Shen
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shangai, China
| | - Chi Yang
- Department of Oral Surgery, Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shangai, China
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Bilen S, Tunca M. Evaluation of safe areas for miniscrew use according to various skeletal anomalies with CBCT. Clin Oral Investig 2023; 28:63. [PMID: 38158507 DOI: 10.1007/s00784-023-05387-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 12/12/2023] [Indexed: 01/03/2024]
Abstract
OBJECTIVES We aimed to determine safe areas to apply miniscrews in the interradicular region of the maxilla and mandible in individuals with various sagittal skeletal malocclusions. MATERIALS AND METHODS Cone beam-computed tomography images of 159 individuals were used. Individuals were divided into three groups: Class I, Class II, and Class III. In the sagittal plane, 3-6-9-mm apical sections were determined from the alveolar crest apex. The buccal cortical bone thickness, interradicular distance, and buccolingual bone distances were measured. RESULTS In the buccal cortical bone thickness, we observed statistically significant differences between the classes except for the 1-1 region in the maxilla and all regions and sections in the mandible (p < 0.05). The differences in the buccolingual bone distance between classes were statistically significant, except for the 3-mm and 6-mm sections in the 3-4 and 4-5 regions of the maxilla, the 9-mm sections in the 1-2 and 2-3 regions, the 6-mm and 9-mm sections in the 3-4 region, and the 6-mm section in the 4-5 regions of the mandible (p < 0.05). The differences in the interradicular bone distance were statistically significant between the classes in all regions and sections of the mandible except the 6-mm sections in the 1-2 region and in all sections of the maxilla except the 6-mm sections in the 3-4 region (p < 0.05). CONCLUSIONS We observed significant differences in the buccal cortical bone thickness, interradicular bone distance, and buccolingual bone distance among individuals. CLINICAL RELEVANCE Understanding the anatomy of interradicular regions and preventing complications.
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Affiliation(s)
- Selma Bilen
- Department of Orthodontics, Faculty of Dentistry, Van Yüzüncü Yıl University, Van, Turkey
| | - Murat Tunca
- Department of Orthodontics, Faculty of Dentistry, Van Yüzüncü Yıl University, Van, Turkey.
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Schwarz L, Unger E, Gahleitner A, Rausch-Fan X, Jonke E. A novel approach for gingiva thickness measurements around lower anterior teeth by means of dental magnetic resonance imaging. Clin Oral Investig 2023; 28:18. [PMID: 38135801 PMCID: PMC10746778 DOI: 10.1007/s00784-023-05459-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2023] [Accepted: 12/18/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVE This diagnostic accuracy study aims to present the first measurements of gingiva thickness around lower anterior teeth using dental magnetic resonance imaging (MRI) and to compare these measurements with two established methods: (1) gingival phenotype assessment via periodontal probing, and (2) the superimposition of cone-beam computed tomography (CBCT) scans with intraoral scans of teeth and gums. MATERIALS AND METHODS Ten patients with substantial orthodontic treatment need and anterior mandibular crowding were consecutively included in this clinical case series. After periodontal probing, each patient underwent a CBCT scan, an intraoral scan of the mandible, and an MRI investigation using a novel mandibula 15-channel dental coil. RESULTS The mean gingiva thickness was 0.72 mm measured on MRI and 0.97 mm measured on CBCT, with a mean difference between the measurement methods of 0.17 ± 0.27 mm (p < 0.001). Measurement agreement between the index tests (MRI and CBCT) and the clinical reference standard (probing) yielded an overall percent agreement of 64.94% and 47.02% for MRI and CBCT, respectively. Teeth with thin phenotypes were associated with lower soft tissue dimensions in both free (MRI: 0.56 mm vs. CBCT: 0.79 mm) and supracrestal gingiva (MRI: 0.75 mm vs. CBCT: 1.03 mm) when compared to those with thick phenotypes. However, only the measurements obtained from MRI scans showed statistically significant differences between the two phenotypes. CONCLUSION Dental MRI successfully visualizes delicate structures like the gingiva in the anterior mandible and achieves a high correlation with superimposed CBCT scans, with clinically acceptable deviations. CLINICAL RELEVANCE The present study helps to establish dental MRI as a radiation-free alternative to conventional radiographic methods.
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Affiliation(s)
- Linda Schwarz
- Division of Orthodontics, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria.
| | - Ewald Unger
- Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
| | - André Gahleitner
- Department of Biomedical Imaging and Image-Guided Therapy, Medical University of Vienna, Spitalgasse 23, 1090, Vienna, Austria
| | - Xiaohui Rausch-Fan
- Center of Clinical Research, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
| | - Erwin Jonke
- Division of Orthodontics, University Clinic of Dentistry, Medical University of Vienna, Sensengasse 2a, 1090, Vienna, Austria
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Ismayılov R, Özgür B. Indications and use of cone beam computed tomography in children and young individuals in a university-based dental hospital. BMC Oral Health 2023; 23:1033. [PMID: 38129827 PMCID: PMC10740269 DOI: 10.1186/s12903-023-03784-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2023] [Accepted: 12/15/2023] [Indexed: 12/23/2023] Open
Abstract
BACKGROUND The aim of this study was to evaluate the indications of cone beam computed tomography (CBCT) in children and young individuals in a university-based dental hospital and their association with age, gender and field of view. METHODS 7131 CBCT scans, taken during 3-year period, were reviewed and a total of 649 pediatric patients (0-18 years) with complete request forms were included. Data related to gender, age, referring department, CBCT indications, field of view (FOV), region of interest (ROI), need for re-exposure and patients received more than one CBCT examination were recorded. RESULTS The mean age was 13.57 ± 3.52 years and "malocclusion and dentofacial anomaly" (28.7%) was the most common clinical indication. Facial trauma, dental trauma and supernumerary tooth in males; "malocclusion and dentofacial anomaly" and implant planning in females were recorded more frequently compared to other gender. Maxilla was the most frequently monitored ROI (35.1%) for patients. Small (≤ 10 cm) FOV was preferred in 58.1% of all patients. Large FOV was selected in the majority of patients who underwent CBCT scan for "malocclusion and dentofacial anomaly" (89.6%). The repeated scans constituted 2.3% of patients and 105 patients (16.2%) underwent multiple CBCT scans on different dates for mainly orthodontic follow-up. CONCLUSIONS The justification of CBCT scans was not fully compatible with current guidelines and mainly larger FOV was preferred. The number of CBCT examination in children and young individuals tends to increase. TRIAL REGISTRATION NUMBER Not applicable.
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Affiliation(s)
- Rovshan Ismayılov
- Department of Pediatric Dentistry, Hacettepe University Faculty of Dentistry, Altındağ, Ankara, 06100, Turkey
| | - Beste Özgür
- Department of Pediatric Dentistry, Hacettepe University Faculty of Dentistry, Altındağ, Ankara, 06100, Turkey.
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Mao F, Lu C, Liu N, Liu Z, Zhang Y, Qi H, Hu M. Effects of Twin-Block with an expanding device on the upper airway in growing children with skeletal class II malocclusion-a retrospective study based on the consistency of three-dimensional and two-dimensional data. Clin Oral Investig 2023; 28:4. [PMID: 38123880 DOI: 10.1007/s00784-023-05388-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 12/12/2023] [Indexed: 12/23/2023]
Abstract
OBJECTIVES Skeletal class II malocclusion is one of the most common malocclusions. Among the functional appliances for skeletal class II malocclusion, the Twin-Block appliance with a maxillary expander is effective in repositioning the mandible forward. In this study, we focused our efforts on investigating the effects of Twin-Block appliances with maxillary expanders on the upper airway in growing children with skeletal class II malocclusion by tracing and measuring lateral cephalograms after evaluating the consistency of three-dimensional CBCT data and two-dimensional lateral cephalogram data. MATERIALS AND METHODS A total of 102 patients ranging from 9 to 15 years old (11.37 ± 2.80, male/female ratio = 1:1) with skeletal class II malocclusion were selected to evaluate the consistency of CBCT data and lateral cephalogram data. The strongly and moderately correlated segments were then selected to study the effects of Twin-Block with a maxillary expander on the upper airway in 66 growing children with skeletal class II malocclusion (11.31 ± 1.23 years old, male/female ratio = 1:1) by lateral cephalograms. RESULTS The results showed a strong significant correlation in the nasopharynx (r = 0.708) and moderate significant correlations in the overall upper airway (r = 0.641), palatopharynx (r = 0.553), and glossopharynx (r = 0.575) but a weak correlation in the hypopharynx (r = 0.323). The corresponding determination coefficient (R2) was also determined by scatter plot analysis. Moreover, compared with the pretreatment data (T1), the total area of the upper airway and the areas of the nasopharynx, palatopharynx, and glossopharynx after functional treatment (T2) increased statistically and significantly. CONCLUSIONS Lateral cephalograms can reflect the volume of the nasopharynx and oropharynx in skeletal class II children to a certain extent, while Twin-Block appliances with maxillary expanders can widen the volume of the nasopharynx and oropharynx significantly. CLINICAL RELEVANCE The lateral cephalogram is reliable for analyzing the nasopharynx, palatopharynx, and glossopharynx in orthodontic clinical practice. Twin-Block appliances with maxillary expanders have a positive effect on skeletal class II patients with airway stenosis.
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Affiliation(s)
- Feng Mao
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China
| | - Chenmeng Lu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China
- Department of Orthodontics, Qingdao Stomatological Hospital Affiliated to Qingdao University, Qingdao, Shandong, People's Republic of China
| | - Nan Liu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China
- Department of Orthodontics, Suzhou Stomatological Hospital, Suzhou, Jiangsu, People's Republic of China
| | - Zhiqing Liu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China
| | - Yi Zhang
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China
| | - Huichuan Qi
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China.
| | - Min Hu
- Department of Orthodontics, Hospital of Stomatology, Jilin University, Changchun, Jilin, People's Republic of China.
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Gao J, Guo D, Zhang X, Cheng Y, Zhang H, Xu Y, Jin Z, Ma Y. Biomechanical effects of different staging and attachment designs in maxillary molar distalization with clear aligner: a finite element study. Prog Orthod 2023; 24:43. [PMID: 38044352 PMCID: PMC10694119 DOI: 10.1186/s40510-023-00493-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 09/26/2023] [Indexed: 12/05/2023] Open
Abstract
BACKGROUND In the present study, the effects of distalizations of one and two molars with different step distances and attachment designs have been analyzed. METHODS A 3D finite element analysis model has been developed in order to determine the tendency of tooth displacement and stress distribution with clear aligner treatment. RESULTS Under the condition of single-molar distalization, when the step distance was set to 0.25 mm, the total displacement was 0.086 mm for central incisors, 0.080 mm for lateral incisors, 0.084 mm for canines, 0.102 mm for the first premolar and 0.076 mm for the second premolar. The von Mises stress of roots and the principal stress of the periodontal ligament was slightly lower than in the control group when the step distance was set to 0.130 mm. Under the condition of two-molar distalization, when the step distance was set to 0.130 mm, the total displacements for central incisors, lateral incisors and canines as well as both the first and second maxillary molars were basically the same as with a distance of 0.250 mm for one-molar distalization. In addition, when the step distance was 0.130 mm with two-molar distalization, the rotation center of the first and second molar was closer to the apex of the root indicating that the smaller step distance led to more bodily movement during the two-molar distalization. However, displacement tendencies of the first molar and the second molar were basically the same whether horizontal or vertical rectangular attachments were added. CONCLUSIONS A step distance of moving two molars to 0.130 mm can achieve the same reaction force on the anterior teeth as moving one molar 0.250 mm without effects on horizontal or vertical rectangular attachments. CLINICAL RELEVANCE Our results provide a theoretical basis and guidance for simultaneously moving two molars backward in clinical practice using a clear aligner.
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Affiliation(s)
- Jie Gao
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China
| | - Donghui Guo
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China
| | - Xu Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China
| | - Yuxun Cheng
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China
| | - Hao Zhang
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China
| | - Yuerong Xu
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China
| | - Zuolin Jin
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China.
| | - Yanning Ma
- State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, No. 169 Changle West Road, Xi'an, 710032, China.
- Shanxi Medical University School and Hospital of Stomatology, Taiyuan, 030001, China.
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Motamedian SR, Najary S, Nikakhtar H, Rezvani M, Safavi SM. Comparison of pleasant and unpleasant smile characteristics in the perception of the laypeople in an Iranian population. Am J Orthod Dentofacial Orthop 2023; 164:766-773. [PMID: 37565945 DOI: 10.1016/j.ajodo.2023.04.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 04/01/2023] [Accepted: 04/01/2023] [Indexed: 08/12/2023]
Abstract
INTRODUCTION This study aimed to compare the characteristics of pleasant and unpleasant smiles from the perception of laypeople. METHODS Two-hundred posed smile photographs were obtained from adult participants with no anomaly, restoration, or severe crowding and spacing in anterior teeth. Photographs were shown to 26 judges to give each photograph a score for attractiveness. Upper and lower quartiles for the most and least rated smiles were determined, and variables including gingival display, smile arc, midline deviation, buccal corridor, smile width, tooth rotation or malposition, diastema, upper and lower vermilion show, and tooth form were measured. Independent-sample t test and Pearson chi-square analysis were used to determine the differences between the pleasant and unpleasant groups for quantitative and qualitative variables, respectively. The linear regression model revealed variables with the most significant impact on the mean score. RESULTS All quantitative and qualitative variables except tooth form significantly differed between pleasant and unpleasant smile groups (P <0.05). The consonant smile arc was associated with an increase of 12.59% in mean scores compared with the inconsonant smile arc. Each tooth reported with malposition was correlated with a decrease of 9.37% in the scores. In the same way, each 1-mm increase in midline diastema and occlusal cant coincided with a drop of 8.73% and 3.59% in scores, respectively. CONCLUSIONS The results of this study suggested that smile arc, tooth malposition, midline diastema, and occlusal plane canting had the most impact on smile esthetics and should be given priority by orthodontists in the treatment plan of choice.
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Affiliation(s)
- Saeed Reza Motamedian
- Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Shaghayegh Najary
- Students' Research Committee, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Hooria Nikakhtar
- Students' Research Committee, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Rezvani
- Students' Research Committee, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammadreza Safavi
- Department of Orthodontics, School of Dentistry, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Dentofacial Deformities Research Center, Research Institute of Dental Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Tomazi FHS, Conci RA, Heitz C, Noritomi PY, de Menezes LM, de Lima EMS, Teixeira ER. The Hyrax appliance with tooth anchorage variations in surgically assisted rapid maxillary expansion: a finite element analysis. Oral Maxillofac Surg 2023; 27:647-654. [PMID: 35971005 DOI: 10.1007/s10006-022-01111-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 08/10/2022] [Indexed: 11/28/2022]
Abstract
PURPOSE It is known that a correct transverse maxillary dimension is a key factor for a stable occlusion, which brings functional and esthetic benefits for the patient. In patients presenting maxillary atresia and the completion of bone growth, a highly recommended option for correction is the surgically assisted rapid maxillary expansion (SARME) associated with the Hyrax appliance. The objective of this study was to evaluate the influence of tooth anchorage variations of the Hyrax appliance in SARME through finite element analysis, evaluating which anchorage option might be associated with more effective orthopedic results with less undesired side effects. METHODS Five different dental anchoring conditions for the Hyrax appliance were simulated through FE analysis applying premolars and molars as anchorage, having the same force applied by the activation of the Hyrax screw (0.5 mm) in all groups. The maxillary displacement results (axes X, Y, and Z) and generated stresses for both teeth and maxillary bone were calculated and represented using a color scale. RESULTS All groups presented significant bone displacement and stress concentration on anchoring teeth, with the group presenting anchorage in the 1st and 2nd molars showing the greatest maxillary horizontal displacement (axis X) and suggesting the lowest tendency of dental vestibular inclination. CONCLUSIONS Variations in dental anchorage might substantially affect the maxillary bone and teeth displacement outcome. The protocol for the Hyrax apparatus in SARME applying the 1st and 2nd molars as anchorage might generate less tilting and inclination of the anchoring teeth.
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Affiliation(s)
- Flavio Henrique Silveira Tomazi
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Ricardo Augusto Conci
- Department of Oral Surgery, State University of Western Parana, Cascavel, Parana, Brazil
| | - Claiton Heitz
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Pedro Yoshito Noritomi
- 3D Technologies Division, Renato Archer Technology Information Center, Campinas, São Paulo, Brazil
| | - Luciane Macedo de Menezes
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Eduardo Martinelli Santayana de Lima
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil
| | - Eduardo Rolim Teixeira
- School of Health and Life Sciences, Pontifical Catholic University of Rio Grande Doo Sul, Av. Ipiranga 6681, Predio 06 Bairro: Partenon, Porto Alegre, RS, 90619-900, Brazil.
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Zreaqat M, Hassan R, Samsudin AR, Alforaidi S. Effects of twin-block appliance on upper airway parameters in OSA children with class II malocclusion and mandibular retrognathia: a CBCT study. Eur J Pediatr 2023; 182:5501-5510. [PMID: 37777602 DOI: 10.1007/s00431-023-05226-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 09/15/2023] [Accepted: 09/17/2023] [Indexed: 10/02/2023]
Abstract
Twin-block appliance had been advocated as a potential treatment option in paediatric obstructive sleep apnoea (OSA) due to their favourable effect in enhancing upper airway parameters and improving OSA symptoms. The aim of this study was to evaluate the effect of twin-block appliance therapy on upper airway parameters/dimensions and the apnoea-hypopnea indexes (AHIs) in OSA children with class II mandibular retrognathic skeletal malocclusion using cone-beam computed tomography. This prospective longitudinal study comprised 34 polysomnography-proven OSA growing children with class II mandibular retrognathic skeletal malocclusion between the ages of 8 and 12 years who had completed myofunctional twin-block therapy and matched corresponding controls. The upper airway was segmented into the nasopharynx, oropharynx, and hypopharynx, and the effect of twin-bock treatment on upper airway parameters/dimensions was assessed pre- and posttreatment using CBCT analysis, while a second standard overnight PSG was performed to determine changes in the AHI. At the nasopharynx level, minimal (nonsignificant) increases in all variables were observed within the twin-block group and between the groups (P > 0.05). At the level of the oropharynx, all variables increased significantly in the treatment group and between groups (P < 0.001), but these increases were nonsignificant in the control group. At the level of the hypopharynx, only the minimum cross-sectional area (MCA) increased significantly in the treatment group (P = 0.003). The change in MCA was also significant between the groups (P = 0.041). In addition, the upper airway length increased significantly in the twin-block group (P = 0.0154), and the AHI decreased by 74.8% (P < 0.001). CONCLUSION Correction of class II mandibular retrognathic skeletal malocclusion with twin-block appliance resulted in a significant increase in upper airway volume, MCA, anteroposterior and lateral distances of the MCA at the level of the oropharynx, MCA at the level of the hypopharynx and upper airway length, and a significant decrease in AHI, but it had no effect on nasopharynx parameters. WHAT IS KNOWN • CBCT imaging has been shown to be an effective and precise diagnostic tool for analyzing the upper airways and craniofacial structures. • Twin block appliance may be an effective treatment modality in children with OSA. WHAT IS NEW • Minimal cross-sectional area of upper ways may be the most relevant potential parameter when explaining how the upper airway anatomy plays role of in the pathogenesis of pediatric OSA. • Twin block appliance induced favorable changes in upper airway morphology (oropharynx area mainly) and respiratory parameters in OSA children with class II malocclusion.
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Affiliation(s)
- Maen Zreaqat
- Orthodontic Dep., School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia
| | - Rozita Hassan
- Orthodontic Dep., School of Dental Sciences, Universiti Sains Malaysia, Kota Bharu, Malaysia.
| | - A R Samsudin
- Maxillofacial Surgery Dep., College of Dental Medicine, University of Sharjah, Sharjah, United Arab Emirates
| | - Sahal Alforaidi
- Pediatric and Orthodontic Dep. College of Dentistry, Taibah University, Medina, Saudi Arabia
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Daniel SB, Wiesen C, Christensen J, Frazier-Bowers SA. Using a digital platform to establish odontometric variation based on race, gender and Angle classification. Orthod Craniofac Res 2023; 26 Suppl 1:204-209. [PMID: 37073633 DOI: 10.1111/ocr.12664] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2023] [Revised: 03/23/2023] [Accepted: 04/01/2023] [Indexed: 04/20/2023]
Abstract
Orthodontists often encounter significant clinical challenges in the finishing stages of treatment due to a disproportion in interarch tooth size relationships. Despite the increasing presence of digital technology and concomitant focus on customized treatment approaches, there is a gap in the knowledge of how generating tooth size data using digital versus traditional methods may impact our treatment regime. OBJECTIVE This study aimed to compare the prevalence of tooth size discrepancies using digital models and a digitally based cast analysis in our cohort based on (i) Angle's Classification; (ii) gender and (iii) race. MATERIALS AND METHODS The mesiodistal widths of teeth in 101 digital models were assessed using computerized odontometric software. A Chi-square test was used to determine the prevalence of tooth size disproportions among the study groups. The differences between all three groups of the cohort were analysed using a three-way analysis of variance (ANOVA). RESULTS An overall Bolton tooth size discrepancy (TSD) prevalence of 36.6% was observed in our study cohort; 26.7% had an anterior Bolton TSD. No differences existed in the prevalence of tooth size discrepancies between male and female subjects as well as between the different malocclusion groups (P > .05). Caucasian subjects had a statistically significant smaller prevalence of TSD compared to Black and Hispanic patients (P < .05). CONCLUSION The prevalence results in this study illuminate how relatively common TSD is and underscores the importance of proper diagnosis. Our findings also suggest that racial background may be an influential factor in the presence of TSD.
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Affiliation(s)
- S B Daniel
- Orthodontics Program, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - C Wiesen
- Odum Institute for Research in Social Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - J Christensen
- Department of Pediatric Dentistry, and Private Practice in Pediatric Dentistry and Orthodontics, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - S A Frazier-Bowers
- Department of Orthodontics and Oral Facial Genetics, Indiana University School of Dentistry, Indianapolis, Indiana, USA
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Khurshid HM, Rizwan S, Ahmed I, Mehmood HT, Nagani NI, Tanvir F. Comparison of upper and lower lip position, length and thickness in sagittal and vertical malocclusion. J PAK MED ASSOC 2023; 73:2423-2426. [PMID: 38083923 DOI: 10.47391/jpma.6156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2023]
Abstract
This study aimed to compare the upper and lower lips position, length, and thickness in different malocclusions, in randomly selected 180 patients' pre-treatment lateral cephalograms. The subjects were grouped sagittally by using Steiner's analysis and Wits appraisal and vertically based on Frankfort horizontal and mandibular plane (FHMP) angle and lower facial height. One-way ANOVA was applied to compare the upper and lower lip positions, thickness, and length in sagittal and vertical malocclusion and independent sample T test was applied for comparison between genders among soft tissue variables. Post-hoc Dunnett T3 was performed for comparison of lip variables in adjacent malocclusion groups. The level of significance was not less than or equal to 0.05. The anteroposterior position of the upper and lower lips with respect to E and S planes and upper and lower lip thickness varied significantly (p < 0.05) in all classes of sagittal malocclusion, whereas the anteroposterior (AP) position of the LL with respect to both planes and UL length between vertical malocclusion groups was statistically significant (p < 0.05). AP position and fullness of both lips have a significant association with sagittal malocclusion, whereas the AP position of the lower lip's and the length of upper lip is significantly associated with vertical malocclusion.
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Affiliation(s)
- Hafiza Maryam Khurshid
- Department of Orthodontics, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Karachi, Pakistan
| | - Sadia Rizwan
- Department of Orthodontics, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Karachi, Pakistan
| | - Imtiaz Ahmed
- Department of Orthodontics, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Karachi, Pakistan
| | | | - Nasreen Iqbal Nagani
- Department of Orthodontics, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Karachi, Pakistan
| | - Faiqa Tanvir
- Department of Orthodontics, Dr. Ishrat-ul-Ebad Khan Institute of Oral Health Sciences, Karachi, Pakistan
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Lal B, Alagarsamy R, Dhanasekaran A, Roychoudhury A, Sharma S, Arivarasan Barathi M. Does surgical treatment of mandibular condyle head (diacapitular) fractures provide better outcomes than closed treatment? - a systematic review and meta-analysis. Br J Oral Maxillofac Surg 2023; 61:647-658. [PMID: 37996317 DOI: 10.1016/j.bjoms.2023.10.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 08/03/2023] [Accepted: 10/17/2023] [Indexed: 11/25/2023]
Abstract
The choices for managing a condylar head fracture (CHF) of the mandible are either open surgical or closed functional treatments (CFT) and the decision depends on various factors. The purpose of this systematic review was to ascertain from the available literature whether the open method or CFT yields better outcomes in managing CHF. We have systematically reviewed published articles according to the PRISMA statement. The search was conducted in PubMed, Google Scholar, Semantic Scholar, and the Cochrane Library database for comparative studies about both open and closed treatments from inception until April 2023. The outcomes of interest were mouth opening (MO), protrusion, laterotrusion, postoperative pain, and malocclusion. Eight studies met the inclusion criteria. The review comprised of 326 cases, among which 177 were managed by open methods and 149 were treated by CFT. The incidence of postoperative malocclusion and pain were significantly less in the open group. MO was better in the open treatment group although this was not statistically significant. Protrusion and laterotrusion occurred slightly more in CFT, although these were also statistically not significant. Overall, meta-analysis favoured open methods of managing CHF. Although enough evidence exists for the use of open methods for selected condylar head fractures, CFT still demonstrated favourable outcomes in undisplaced fractures. The selection of a particular treatment method should be individualised on the basis of each particular case considering the risk/benefits. Further high quality randomised trials are needed to establish a therapeutic guideline.
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Affiliation(s)
- Babu Lal
- Department of Trauma and Emergency Medicine, All India Institute of Medical Sciences, Bhopal, Madhya Pradesh, India
| | - Ragavi Alagarsamy
- Department of Burns, Plastic and Maxillofacial Surgery, VMMC and Safdarjung hospital, New Delhi, India.
| | | | - Ajoy Roychoudhury
- Department of Oral & Maxillofacial surgery, All India Institute of Medical Sciences, New Delhi, India
| | - Sharadendu Sharma
- Department of Burns, Plastic and Maxillofacial Surgery, VMMC and Safdarjung hospital, New Delhi, India
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Vilanova L, Bellini-Pereira SA, Patel MP, Grec R, Henriques JFC, Janson G, Garib D, Aliaga-Del Castillo A. Finite element analysis of two skeletally anchored maxillary molar distalisation methods. J Orthod 2023; 50:344-351. [PMID: 37051654 DOI: 10.1177/14653125231166437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
OBJECTIVE To compare two methods of maxillary molar distalisation with skeletal anchorage using finite element analysis (FEA). METHODS Two digitised models were created: the miniscrew-anchored distaliser, which consisted of a distalisation method anchored in a buccal miniscrew between the first molar and second premolar (Model 1), and the miniscrew-anchored palatal appliance, which consisted of a distalisation method anchored in a miniscrew on the anterior region of the palate (Model 2). FEA was used to simulate both methods, assessing teeth displacements and stress concentration. RESULTS The miniscrew-anchored distaliser showed greater buccal than distal displacement of the first molar, while the opposite was observed in the miniscrew-anchored palatal appliance. The second molar responded similarly in the transverse and anteroposterior perspectives with both appliances. Greater displacements were observed at crown level than in apical regions. Greater stress concentration was observed at the buccal and cervical regions of the crown in the miniscrew-anchored distaliser and the palatal and cervical regions in the palatal appliance. The stress progressively spread in the buccal side of the alveolar bone for the miniscrew-anchored distaliser and in the palatal root and alveolar bone for the palatal appliance. CONCLUSION FEA assumes that both appliances would promote maxillary molar distalisation. A skeletally anchored palatal distalisation force seems to provide a greater molar bodily movement with less undesirable effects. Greater stress is expected at the crown and cervical regions during distalisation, and the stress concentration in the roots and alveolar bone depends directly on the region the force was applied.
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Affiliation(s)
- Lorena Vilanova
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | | | - Mayara Paim Patel
- Department of Orthodontics, University of Guarulhos, Guarulhos, Brazil
| | - Roberto Grec
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | | | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
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