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Sánchez-Beltran JM, Rodríguez-Cárdenas YA, Ruíz-Mora GA, Aliaga-Del Castillo A, Arriola-Guillén LE. Alveolar morphometry in young adults with and without agenesis of the upper lateral incisor: A retrospective study. Int Orthod 2024; 22:100864. [PMID: 38417225 DOI: 10.1016/j.ortho.2024.100864] [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] [Revised: 02/06/2024] [Accepted: 02/08/2024] [Indexed: 03/01/2024]
Abstract
INTRODUCTION We aimed to compare alveolar morphometry in young adults with agenesis of the upper lateral incisor versus the side without agenesis and versus matched controls. MATERIAL AND METHODS In this observational retrospective study, cone beam computed tomography scans were obtained of 36 upper hemiarches from young adults aged 15 to 30 years. The hemiarches were distributed into three groups: group 1: 12 upper hemiarches presenting agenesis of the upper lateral incisor; group 2: 12 upper hemiarches from the opposite side without agenesis of the upper lateral incisor (control group 1); and group 3: 12 upper hemiarches without agenesis of the upper lateral incisor matched for age and sex with respect to the affected group (control group 2). A trained and calibrated investigator performed all the alveolar measurements at two different times, including sagittal, coronal and axial slices of each hemiarch. Paired Student's t-tests, Chi-square and repeated measures ANOVA with Bonferroni correction were used, (P<0.05). RESULTS Apical mesial evaluation of group 1 (4.22±1.19mm) was significantly lower (P<0.001) than that of groups 2 (6.72±1.17mm) and 3 (7.58±1.67mm). Apical distal evaluation also showed differences (P<0.001) among the three groups, with the dimension being smaller in group 1 with agenesis (4.53±1.14mm), followed by group 2 without agenesis (6.23±1.55mm) and the healthy control group 3 (7.73±1.71mm). CONCLUSIONS Lateral incisor agenesis significantly reduces the alveolar dimensions of the affected area. In cases of unilateral agenesis, the unaffected side also shows sequelae, with decreased dimensions compared to cases without agenesis. This condition should be taken into account when making therapeutic decisions regarding rehabilitation with implants or canine replacement.
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Affiliation(s)
| | | | | | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru.
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Cornejo-Paz RH, Rodríguez-Cárdenas YA, Ruíz-Mora GA, Aliaga-Del Castillo A, Arriola-Guillén LE. Association of mandibular canine impaction and anatomical factors: A multicentre retrospective panoramic study in Latin America. Int Orthod 2024; 22:100867. [PMID: 38457898 DOI: 10.1016/j.ortho.2024.100867] [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: 11/23/2023] [Revised: 02/14/2024] [Accepted: 02/16/2024] [Indexed: 03/10/2024]
Abstract
INTRODUCTION Mandibular canine impaction is infrequent in dental eruption anomalies and treatment is very challenging. The aim of this multicenter retrospective panoramic study in Latin America was to evaluate panoramic radiographic imaging characteristics of mandibular canine impaction (impaction area, mandibular base contact, transmigration, impaction height and sex) and their associations. MATERIAL AND METHODS This cross-sectional study evaluated 212 digital panoramic radiographs from three radiological centres in Tingo Maria (Peru), Bogota and Tunja (Colombia). The study included children of both sexes with impacted mandibular canines. Mandibular alpha angle, contact with mandibular basal bone (MBB), impacted sector according to 10 sectors with an adaptation of the Ericson and Kurol method, presence of transmigration and the impacted height were measured and the relationship among these measures was analyzed. Fisher's exact test, Chi-square and binary logistic regression were used. (P<0.05). RESULTS The mandibular canine impaction showed contact with the MBB (32.08%), dental transmigration (36.79%), mainly located at an apical (40.09%) and sub-apical (36.79%) level. Transmigration mainly occurred in sectors 6 (33.30%) and 10 (25.60%) (P<0.001). It was found that for each year of increase in age, the possibility of contact with the MBB decreased (β=0.89, P=0.010), and as the alpha angle increased by one degree the probability of contact with the MBB decreased (β=0.97, P=0.001) and the probability of transmigration increased (β=1.05, P<0.001). CONCLUSIONS One third of the impacted canines were in contact with the MBB, while another third presented dental transmigration and were mainly located apically and subapically of the incisor roots. These imaging features should be taken into account when planning orthodontic treatment.
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Affiliation(s)
- Roger Homero Cornejo-Paz
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | | | | | - Aron Aliaga-Del Castillo
- Graduate Orthodontic Clinic, University of Michigan, School of Dentistry, Department of Orthodontics and Pediatric Dentistry, Michigan, USA
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru.
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Bellini-Pereira SA, Aliaga-Del Castillo A, Vilanova L, de Castro Ribeiro TT, Janson G, Garib D, Henriques JFC. Treatment stability with bonded versus vacuum-formed retainers after 12 months: A randomized clinical trial. Orthod Craniofac Res 2024; 27:485-493. [PMID: 38226739 DOI: 10.1111/ocr.12753] [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] [Accepted: 12/23/2023] [Indexed: 01/17/2024]
Abstract
OBJECTIVE To compare the clinical effectiveness of V-bend bonded retainers (BR) versus vacuum-formed retainers (VFR) regarding their capacity to maintain treatment stability and survival rates after 12 months. MATERIALS AND METHODS Patients finishing orthodontic treatment were randomly allocated into two groups. The BR group received maxillary and mandibular BRs in the lingual surfaces of the anterior teeth. The VFR group received VFRs right after fixed appliances removal. The patients were evaluated at four time-points: at fixed appliances removal (T0), after 3 (T1), 6 (T2) and 12 months (T3). In each time-point digital models were obtained and analysed with the OrthoAnalyzer™ software. Treatment stability based on occlusal outcomes and retainers' survival rates were evaluated. Intergroup comparisons were performed using Mann-Whitney U-tests. The Kaplan-Meier survival plot and the log-rank test were employed to assess the retainers' survival. RESULTS Both BR and VFR groups included 25 patients. The groups were comparable regarding their baseline characteristics. Up to 6 months, both retainers were equally effective; however, after 12 months, BRs were more effective in maintaining the incisors' alignment in the maxilla and the mandible compared to the VFRs. No differences were noticed in the intercanine and intermolar widths, overjet and overbite. There were no differences regarding the retainers' survivability in both arches. CONCLUSIONS BRs were more effective in maintaining the alignment of the incisors in the maxilla and mandible compared to VFRs after 12 months. Both retainers presented the same survival rates after the same period.
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Affiliation(s)
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Lorena Vilanova
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Tiago Turri de Castro Ribeiro
- Department of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
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Velásquez G, Aliaga-Del Castillo A, Valerio MV, Maranhão OBV, Miranda F, Janson G. Effects of eruption guidance appliance in the early treatment of Class III malocclusion. Angle Orthod 2024; 94:286-293. [PMID: 38639459 PMCID: PMC11050463 DOI: 10.2319/071223-488] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2023] [Accepted: 01/01/2024] [Indexed: 04/20/2024] Open
Abstract
OBJECTIVES To evaluate the dentoskeletal effects and effectiveness of the eruption guidance appliance in Class III patients in the mixed dentition. MATERIALS AND METHODS The experimental group comprised 22 patients with Class III malocclusion and anterior cross-bite (12 males, 10 females, mean age 7.63 ± 0.96 years) treated with the eruption guidance appliance over a mean period of 1.72 ± 0.48 years. The control group comprised 22 untreated subjects (12 males, 10 females, mean age 7.21 ± 0.60 years) with Class III malocclusion. Lateral cephalometric radiographs were obtained at pretreatment (T1) and posttreatment (T2). Intergroup comparisons were performed with Mann-Whitney and t-tests (P < .05). RESULTS In the experimental and control groups, the anteroposterior relationship between the maxilla and mandible (ANB angle) remained stable during the treatment period (T1 to T2). The mandibular plane angle decreased in the experimental group and increased in the control group. In the experimental group, the lower anterior face height increase and maxillary molar vertical development were significantly smaller compared to controls. Positive overjet was achieved in 54% of the experimental group. CONCLUSIONS The eruption guidance appliance produced no change in the skeletal anteroposterior relationship. The anterior cross-bite/edge-to-edge relationship was corrected in only about half of the treated subjects.
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Gurgel M, Alvarez MA, Aristizabal JF, Baquero B, Gillot M, Al Turkestani N, Miranda F, Castillo AAD, Bianchi J, de Oliveira Ruellas AC, Ioshida M, Yatabe M, Rey D, Prieto J, Cevidanes L. Automated artificial intelligence-based three-dimensional comparison of orthodontic treatment outcomes with and without piezocision surgery. Orthod Craniofac Res 2024; 27:321-331. [PMID: 38009409 PMCID: PMC10949222 DOI: 10.1111/ocr.12737] [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: 05/25/2023] [Revised: 09/26/2023] [Accepted: 11/12/2023] [Indexed: 11/28/2023]
Abstract
OBJECTIVE(S) This study aims to evaluate the influence of the piezocision surgery in the orthodontic biomechanics, as well as in the magnitude and direction of tooth movement in the mandibular arch using novel artificial intelligence (AI)-automated tools. MATERIALS AND METHODS Nineteen patients, who had piezocision performed in the lower arch at the beginning of treatment with the goal of accelerating tooth movement, were compared to 19 patients who did not receive piezocision. Cone beam computed tomography (CBCT) and intraoral scans (IOS) were acquired before and after orthodontic treatment. AI-automated dental tools were used to segment and locate landmarks in dental crowns from IOS and root canals from CBCT scans to quantify 3D tooth movement. Differences in mesial-distal, buccolingual, intrusion and extrusion linear movements, as well as tooth long axis angulation and rotation were compared. RESULTS The treatment time for the control and experimental groups were 13.2 ± 5.06 and 13 ± 5.52 months respectively (P = .176). Overall, anterior and posterior tooth movement presented similar 3D linear and angular changes in the groups. The piezocision group demonstrated greater (P = .01) mesial long axis angulation of lower right first premolar (4.4 ± 6°) compared with control group (0.02 ± 4.9°), while the mesial rotation was significantly smaller (P = .008) in the experimental group (0.5 ± 7.8°) than in the control (8.5 ± 9.8°) considering the same tooth. CONCLUSION The open source-automated dental tools facilitated the clinicians' assessment of piezocision treatment outcomes. The piezocision surgery prior to the orthodontic treatment did not decrease the treatment time and did not influence in the orthodontic biomechanics, leading to similar tooth movements compared to conventional treatment.
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Affiliation(s)
- Marcela Gurgel
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | | | | | - Baptiste Baquero
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Maxime Gillot
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Najla Al Turkestani
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Felicia Miranda
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | - Jonas Bianchi
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Marcos Ioshida
- 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
| | - Diego Rey
- Department of Orthodontics, CES University, Medellin, Colombia
| | - Juan Prieto
- Department of Computer Sciences, University of North Carolina, Chapel Hill, North Carolina, USA
| | - Lucia Cevidanes
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, USA
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Tonello DL, Cavalcanti HN, de Almeida Lázaro VR, Bellini-Pereira SA, Aliaga-Del Castillo A, Henriques JFC, Garib D, Janson G. Authors' response. Am J Orthod Dentofacial Orthop 2024; 165:377-378. [PMID: 38555164 DOI: 10.1016/j.ajodo.2024.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2024] [Accepted: 01/06/2024] [Indexed: 04/02/2024]
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Peña-Reyes D, Quereza Freitas J, Salvatore Freitas KM, Bellini-Pereira SA, Aliaga-Del Castillo A, Janson G, Freitas MR. Third Molar Comparison in Class I and II Extraction and Non-extraction Orthodontic Treatment: A Retrospective Longitudinal Study. Turk J Orthod 2024; 37:7-13. [PMID: 38556947 PMCID: PMC10986453 DOI: 10.4274/turkjorthod.2023.2022.160] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 03/28/2023] [Indexed: 04/02/2024]
Abstract
Objective This study compared third molar angulation and eruption status in Class I and II malocclusions after orthodontic treatment with and without first premolar extractions. Methods The sample comprised 93 patients divided into four groups: Group 1, Class I malocclusion treated with first premolar extractions; Group 2, Class I malocclusion treated without extractions; Group 3, Class II malocclusion treated with first premolar extractions; and Group 4, Class II malocclusion treated without extractions. Panoramic radiographs were used to evaluate the third molar mesiodistal angulations at T1 (pretreatment), T2 (posttreatment), and T3 (long-term posttreatment). Third molar eruption status was assessed in dental casts. Intergroup angulations and eruption status comparisons were performed using one-way analysis of variance (ANOVA), followed by Tukey's test and Kruskal-Wallis test, respectively. Results Significantly greater mesial angulation and percentage of erupted right maxillary third molars were observed in the Class I extraction group. Significantly greater eruption status of the right mandibular third molars was observed in the Class I and Class II malocclusion extraction groups. Conclusion Class I and II malocclusion extraction treatment exhibited more favorable angulations and a greater number of erupted third molars than non-extraction treatment. The non-extraction groups exhibited a greater percentage of unerupted third molars.
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Affiliation(s)
- Danelin Peña-Reyes
- University of São Paulo Bauru Dental School, Department of Orthodontics, São Paulo, Brazil
| | | | | | | | - Aron Aliaga-Del Castillo
- University of Michigan Faculty of Dentistry, Department of Orthodontics and Pediatric Dentistry, Michigan, USA
| | - Guilherme Janson
- University of São Paulo Bauru Dental School, Department of Orthodontics, São Paulo, Brazil
| | - Marcos Roberto Freitas
- University of São Paulo Bauru Dental School, Department of Orthodontics, São Paulo, Brazil
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Aliaga-Del Castillo A, Marañón-Vásquez GA, Janson G, Vilanova L, Miranda F, Massaro C, Bellini-Pereira SA, Arriola-Guillén LE, Yatabe M, Ruellas AC, Cevidanes L, Garib D. Oral health-related quality of life, adaptation/discomfort during open bite treatment with spurs: complementary analysis from a randomized clinical trial. Sci Rep 2024; 14:5732. [PMID: 38459254 PMCID: PMC10923863 DOI: 10.1038/s41598-024-56363-0] [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: 11/04/2023] [Accepted: 03/05/2024] [Indexed: 03/10/2024] Open
Abstract
This single-center trial aimed to longitudinally compare the oral health-related quality of life (OHRQOL), adaptation and discomfort during anterior open bite (AOB) treatment with lingual spurs and build-ups (SBU) versus spurs only (S) approaches. Children (7-11 years) with AOB were randomly allocated into two treatment groups (SBU or S). The Child Perception Questionnaire (CPQ8-10) was applied 1 and 12 months after installation of the appliances. Questionnaires evaluating functional adaptation and discomfort during the first month of treatment were also applied. A visual analog scale (VAS) was used in these questionnaires. Generalized mixed models were used for analyzing OHRQOL and discomfort data. Generalized linear models were used to assess adaptation outcomes (α = 0.05). The SBU group included 24 patients (7 males and 17 females; mean age 8.2 years) and the S group included 25 patients (11 males and 14 females; mean age 8.3 years). Regardless of the treatment type, overall OHRQOL scores at 12 months were 0.69 times those recorded at 1 month after the appliances installation (i.e., ~ 31% reduction; exp (β) = 0.69; 95% CI: 0.55, 0.88). A significant interaction between treatment and time was detected for the 'functional limitations' domain. For this domain, a significant improvement from the first to the twelfth month was observed in the S group (P < 0.001). Patients in both treatment groups showed similar and easy adaptation to the appliances. Independent of the type of treatment, tongue-related discomfort decreased over time. One week and one month after the appliance's delivery, the discomfort scores were 0.19 (i.e., ~ 81% reduction; exp (β) = 0.19; 95% CI: 0.13, 0.28; P < 0.001) and 0.02 (i.e., ~ 98% reduction; exp (β) = 0.02; 95% CI: 0.01, 0.07; P < 0.001) times, respectively, those issued immediately after the installation of the appliances. Regardless of treatment type; overall OHRQOL improved from the first to the twelfth month of AOB treatment. The functional limitations score decreased in the S group. Children showed easy adaptation, and their discomfort decreased 1 week after the installation of the appliances.Trial registration: Clinicaltrials.gov; NCT03702881, date of registration: October 11, 2018.
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Affiliation(s)
- Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, 48109, USA.
| | - Guido Artemio Marañón-Vásquez
- Department of Orthodontics, School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, 14040, Brazil
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, 17012901, Brazil
| | - Lorena Vilanova
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, 17012901, Brazil
| | - Felicia Miranda
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, 17012901, Brazil
| | - Camila Massaro
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, 17012901, Brazil
| | | | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, 15067, Lima, Peru
| | - Marilia Yatabe
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Antonio Carlos Ruellas
- Department of Orthodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, 21941901, Brazil
| | - Lucia Cevidanes
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, 48109, USA
| | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, 17012901, Brazil
- Department of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, 17012900, Brazil
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Tonello DL, Cavalcanti HN, de Almeida Lázaro VR, Bellini-Pereira SA, Aliaga-Del Castillo A, Henriques JFC, Garib D, Janson G. Treatment of Class II malocclusion with 2-maxillary premolar extractions: Monthly vs biweekly appointments, which is more efficient? Am J Orthod Dentofacial Orthop 2024; 165:114-119. [PMID: 37897484 DOI: 10.1016/j.ajodo.2023.07.017] [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: 06/01/2022] [Revised: 07/01/2023] [Accepted: 07/01/2023] [Indexed: 10/30/2023]
Abstract
INTRODUCTION This study compared whether there is a difference in treatment time (TT) and efficiency when appointments are held once a month or at 2-week intervals in patients with Class II malocclusion treated with 2-premolar extractions METHODS: The patients of this retrospective sample were treated with the same orthodontic mechanics and divided into 2 groups according to frequencies of orthodontic appointments. Group 1 consisted of 18 patients (10 males, 8 females), with an initial mean age of 14.38 ± 1.38 years and appointments once a month. Group 2 consisted of 19 patients (9 males, 10 females), with an initial mean age of 14.12 ± 1.38 years and biweekly appointments. Edgewise fixed appliances with a slot size of 0.022 × 0.028 mm were used, and the anterior teeth were retracted en-masse with a rectangular wire and elastic chains. The Peer Assessment Rating and Objective Grading System indexes were measured in the dental models at the beginning and the end of treatment. Efficiency was assessed by dividing the percentage of improvement of each occlusal index concerning the multiplication of TT and the number of appointments. RESULTS Both groups presented similar Peer Assessment Rating and Objective Grading System indexes at the end of treatment. Groups 1 and 2 presented different TTs (28.06 and 22.05 months, respectively); however, there were no differences regarding the efficiency of both protocols. CONCLUSIONS Patients with Class II malocclusion treated with 2-maxillary premolars had significantly shorter treatment times when seen on biweekly appointments than those with monthly appointments; however, there was no difference in efficiency between protocols.
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Affiliation(s)
- Diego Luiz Tonello
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | | | | | - Aron Aliaga-Del Castillo
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
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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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Bazán-Mendoza JR, Arias-Modesto PB, Ruíz-Mora GA, Rodríguez-Cárdenas YA, Castillo AAD, Dutra V, Arriola-Guillén LE. Sagittal Position of the Upper Incisor in Relation to the Forehead in Peruvian Individuals with Different Skeletal Relationships. J Contemp Dent Pract 2023; 24:821-825. [PMID: 38238267 DOI: 10.5005/jp-journals-10024-3590] [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: 01/23/2024]
Abstract
AIM The aim of this study was to determine the sagittal position of the upper incisor considering Andrews' analysis based on the position of the forehead in Peruvian individuals with different skeletal relationships. MATERIALS AND METHODS This retrospective, cross-sectional study included 212 lateral head radiographs of Peruvian individuals (males: 85, mean age 21.38 ± 6.88, and females: 127, mean age 21.18 ± 6.95), with different skeletal relationships (Class I group = 96, Class II group = 57, Class III group = 59). The values of the ANB, SNA, SNB angles as well as the forehead anterior limit line (FALL) and goal anterior limit line (GALL) points were identified in the radiographs, and then a vertical line was drawn in each point to determine if the upper incisor was positioned forward (protruded), backward (retruded) or within (adequate) these lines. Two trained and calibrated investigators performed all the measurements. The Chi-square test was used to evaluate associations. A p-value < 0.05 was considered statistically significant. RESULTS Overall, the sagittal position of the upper incisor showed a significant association with the sagittal skeletal relationship (p = 0.001). The upper incisors showed an adequate position (41.7%), protruded position (56.10%), and retruded position (42.40%), for Class I, II, and III skeletal relationships, respectively, as highest percentages in each Class. Statistical significance was found for females only (p = 0.005). CONCLUSION Skeletal Class I mainly showed an adequate position of the upper central incisor, whereas for Class II a protruded position was most frequently found, and Class III presented a retruded position. CLINICAL SIGNIFICANCE Andrews' analysis based on the position of the forehead in Peruvian individuals is a valuable tool for orthodontic diagnosis. How to cite this article: Bazán-Mendoza JR, Arias-Modesto PB, Ruíz-Mora GA, et al. Sagittal Position of the Upper Incisor in Relation to the Forehead in Peruvian Individuals with Different Skeletal Relationships. J Contemp Dent Pract 2023;24(11):821-825.
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Affiliation(s)
- José Renatto Bazán-Mendoza
- School of Dentistry, Universidad Científica del Sur, Lima, Perú, Orcid: https://orcid.org/0000-0002-2727-0129
| | - Paula Betzabe Arias-Modesto
- School of Dentistry, Universidad Científica del Sur, Lima, Perú, Orcid: https://orcid.org/0000-0002-8875-5365
| | - Gustavo Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá, Distrito Capital, Colombia; Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú, Orcid: https://orcid.org/0000-0002-9954-1047
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú; Universidad Nacional de Colombia, Bogotá, Distrito Capital, Colombia, Orcid: https://orcid.org/0000-0002-3107-3013
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Michigan, United States of America, Orcid: https://orcid.org/0000-0003-3963-1742
| | - Vinicius Dutra
- Department of Oral Pathology, Medicine, and Radiology, School of Dentistry, Indiana University, Bloomington, Indiana, United States of America, Orcid: https://orcid.org/0000-0002-0534-3067
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú, Phone: +51992124507, e-mail: , Orcid: https://orcid.org/0000-0003-0010-5948
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12
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Keener DJ, de Oliveira Ruellas AC, Aliaga-Del Castillo A, Arriola-Guillén LE, Bianchi J, Oh H, Gurgel ML, Benavides E, Soki F, Rodríguez-Cárdenas YA, Ruíz-Mora GA, Barkley M, Gebeck T, Hannapel E, McClatchey LM, Pinzon M, Roberts C, Cevidanes L. Three-dimensional decision support system for treatment of canine impaction. Am J Orthod Dentofacial Orthop 2023; 164:491-504. [PMID: 37037759 DOI: 10.1016/j.ajodo.2023.02.016] [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: 09/01/2022] [Revised: 02/01/2023] [Accepted: 02/01/2023] [Indexed: 04/12/2023]
Abstract
INTRODUCTION This study aimed to develop a 3-dimensional (3D) characterization of the severity of maxillary impacted canines and to test the clinical performance of this characterization as a treatment decision support tool. METHODS Cone-beam computed tomography images obtained from 83 patients with 120 impacted maxillary canines were included. Quantitative information on the canine 3D position and qualitative assessment of root damage of adjacent teeth were evaluated. A severity index was constructed on the basis of the quantitative findings. Clinical applicability was tested by comparing clinical diagnosis and treatment planning for conventional records vs the 3D characterization via a 2-part survey. RESULTS The average quantitative assessments of impacted maxillary canine position were 6.4 ± 3.6 mm from the midsagittal plane, 11.6 ± 3.1 mm in height relative to the occlusal plane, 31.5° ± 18° of roll, and 48.8° ± 14.3° of pitch. The severity index ranged from 0-13 with a mean score of 4.5 ± 2.2. Overlap with adjacent teeth was the greatest contributor (33%) to the index. Bicortically impacted canines caused the most severe root damage. Cone-beam computed tomography was preferred for assessing root damage and overall severity, whereas conventional imaging was sufficient for height and angulation assessment. The 3D report was very important or important for evaluating root damage, canine position, overall severity, and overlap. The 3D report changed most of the decisions relating to biomechanics, patient education, and treatment time estimate. The decision of exposure and traction vs extraction was changed 22% of the time after the presentation of the 3D report. CONCLUSIONS The overlap with adjacent teeth frequently contributes the most to the severity index. The 3D report provided relevant clinical information regarding the canine position, damage to adjacent teeth, and the severity index, with a profound impact on the decisions of the clinicians regarding biomechanics, patient education, and treatment time estimate.
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Affiliation(s)
| | | | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Jonas Bianchi
- Department of Orthodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, Calif
| | - Heesoo Oh
- Department of Orthodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, Calif
| | - Marcela Lima Gurgel
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Erika Benavides
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Fabiana Soki
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | | | | | - Mary Barkley
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Thomas Gebeck
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Eric Hannapel
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Laurie McNamara McClatchey
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Maria Pinzon
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Christopher Roberts
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
| | - Lucia Cevidanes
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, Mich
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Miranda F, Choudhari V, Barone S, Anchling L, Hutin N, Gurgel M, Al Turkestani N, Yatabe M, Bianchi J, Aliaga-Del Castillo A, Zupelari-Gonçalves P, Edwards S, Garib D, Cevidanes L, Prieto J. Interpretable artificial intelligence for classification of alveolar bone defect in patients with cleft lip and palate. Sci Rep 2023; 13:15861. [PMID: 37740091 PMCID: PMC10516946 DOI: 10.1038/s41598-023-43125-7] [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: 04/20/2023] [Accepted: 09/20/2023] [Indexed: 09/24/2023] Open
Abstract
Cleft lip and/or palate (CLP) is the most common congenital craniofacial anomaly and requires bone grafting of the alveolar cleft. This study aimed to develop a novel classification algorithm to assess the severity of alveolar bone defects in patients with CLP using three-dimensional (3D) surface models and to demonstrate through an interpretable artificial intelligence (AI)-based algorithm the decisions provided by the classifier. Cone-beam computed tomography scans of 194 patients with CLP were used to train and test the performance of an automatic classification of the severity of alveolar bone defect. The shape, height, and width of the alveolar bone defect were assessed in automatically segmented maxillary 3D surface models to determine the ground truth classification index of its severity. The novel classifier algorithm renders the 3D surface models from different viewpoints and captures 2D image snapshots fed into a 2D Convolutional Neural Network. An interpretable AI algorithm was developed that uses features from each view and aggregated via Attention Layers to explain the classification. The precision, recall and F-1 score were 0.823, 0.816, and 0.817, respectively, with agreement ranging from 97.4 to 100% on the severity index within 1 group difference. The new classifier and interpretable AI algorithm presented satisfactory accuracy to classify the severity of alveolar bone defect morphology using 3D surface models of patients with CLP and graphically displaying the features that were considered during the deep learning model's classification decision.
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Affiliation(s)
- Felicia Miranda
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA.
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil.
| | - Vishakha Choudhari
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Selene Barone
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- Department of Health Science, School of Dentistry, Magna Graecia University of Catanzaro, Catanzaro, Italy
| | - Luc Anchling
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- CPE Lyon, Lyon, France
| | - Nathan Hutin
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- CPE Lyon, Lyon, France
| | - Marcela Gurgel
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Najla Al Turkestani
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
- Department of Restorative and Aesthetic Dentistry, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Marilia Yatabe
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Jonas Bianchi
- Department of Orthodontics, University of the Pacific, Arthur A. Dugoni School of Dentistry, San Francisco, CA, USA
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Paulo Zupelari-Gonçalves
- Department of Oral and Maxillofacial Surgery, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Sean Edwards
- Department of Oral and Maxillofacial Surgery, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
- Department of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil
| | - Lucia Cevidanes
- Department of Orthodontics and Pediatric Dentistry, University of Michigan School of Dentistry, Ann Arbor, MI, USA
| | - Juan Prieto
- Department of Psychiatry, University of North Carolina, Chapel Hill, NC, USA
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14
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Vilanova L, Castillo AAD, Bellini-Pereira SA, Henriques JFC, Janson G, Garib D, Patel MP, da Costa Grec RH, Yatabe M, Cevidanes L, Ruellas AC. Three-dimensional changes after maxillary molar distalization with a miniscrew-anchored cantilever. Angle Orthod 2023; 93:513-523. [PMID: 37079798 PMCID: PMC10575634 DOI: 10.2319/091222-640.1] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 03/01/2023] [Indexed: 04/22/2023] Open
Abstract
OBJECTIVES To evaluate the changes after maxillary molar distalization in Class II malocclusion using the miniscrew-anchored cantilever with an extension arm. MATERIALS AND METHODS The sample included 20 patients (9 male, 11 female; mean age 13.21 ± 1.54 years) with Class II malocclusion, treated with the miniscrew-anchored cantilever. Lateral cephalograms and dental models obtained before (T1) and after molar distalization (T2) were evaluated using Dolphin software and 3D Slicer. Superimposition of digital dental models using regions of interest on the palate was performed to evaluate three-dimensional displacement of maxillary teeth. Intragroup change comparisons were performed using dependent t-test and Wilcoxon test (P < 0.05). RESULTS The maxillary first molars were distalized to overcorrected Class I. The mean distalization time was 0.43 ± 0.13 years. Cephalometric analysis demonstrated significant distal movement of the maxillary first premolar (-1.21 mm, 95% confidence interval [CI]: -0.45, -1.96) and maxillary first (-3.38 mm, 95% CI: -2.88, -3.87) and second molars (-2.12 mm, 95% CI: -1.53, -2.71). Distal movements increased progressively from the incisors to the molars. The first molar showed small intrusion (-0.72 mm, 95% CI: 0.49, -1.34). In the digital model analysis, the first and second molars showed a crown distal rotation of 19.31° ± 5.71° and 10.17° ± 3.84°, respectively. The increase in maxillary intermolar distance, evaluated at the mesiobuccal cusps, was 2.63 ± 1.56 mm. CONCLUSIONS The miniscrew-anchored cantilever was effective for maxillary molar distalization. Sagittal, lateral, and vertical movements were observed for all maxillary teeth. Distal movement was progressively greater from anterior to posterior teeth.
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Affiliation(s)
| | - Aron Aliaga-Del Castillo
- Corresponding Author: Dr Aron Aliaga-Del Castillo, Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA (e-mail: )
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Bastiani C, Bellini-Pereira SA, Aliaga-Del Castillo A, Chiqueto K, Castanha Henriques JF, Janson G. Authors' response. Am J Orthod Dentofacial Orthop 2023; 164:305-306. [PMID: 37634923 DOI: 10.1016/j.ajodo.2023.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 06/01/2023] [Indexed: 08/29/2023]
Affiliation(s)
- Cristina Bastiani
- Bauru, São Paulo, and Porto Alegre, Rio Grande do Sul, Brazil, and Ann Arbor, Mich
| | | | | | - Kelly Chiqueto
- Bauru, São Paulo, and Porto Alegre, Rio Grande do Sul, Brazil, and Ann Arbor, Mich
| | | | - Guilherme Janson
- Bauru, São Paulo, and Porto Alegre, Rio Grande do Sul, Brazil, and Ann Arbor, Mich
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Bastiani C, Bellini-Pereira SA, Aliaga-Del Castillo A, Chiqueto K, Castanha Henriques JF, Janson G. Authors' response. Am J Orthod Dentofacial Orthop 2023; 164:303-304. [PMID: 37634920 DOI: 10.1016/j.ajodo.2023.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2023] [Accepted: 04/26/2023] [Indexed: 08/29/2023]
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Ruíz-Mora GA, Arriola-Guillén LE, Aliaga-Del Castillo A, Rodríguez-Cárdenas YA, Dutra V, Mejía-Milian M. Conservative Treatment of Bilateral Impacted Mandibular Canines Traction. Case Rep Dent 2023; 2023:6943221. [PMID: 37560509 PMCID: PMC10409580 DOI: 10.1155/2023/6943221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2023] [Revised: 05/08/2023] [Accepted: 07/12/2023] [Indexed: 08/11/2023] Open
Abstract
The objectives of the treatment of impacted canines differ according to the characteristics of dental malocclusion. Traction of the tooth is a conservative and viable alternative, which allows for maintaining stability and occlusal function. The following case report describes the treatment of an 11.6-year-old female patient, who presented bilateral impaction of mandibular canines in contact with the midline, mixed dentition in the inter-transitional period, class I angle malocclusion, with light crowding teeth. The treatment comprised three phases. The first phase, verticalization of the mandibular canines in mixed dentition, was performed to pull the impacted bilateral mandibular canines towards the dental arch to achieve their verticalization, maintaining the molar relationship, and the position of the upper and lower incisors. In the second phase, osteogenic rest was planned to relieve post-traction stress while awaiting the replacement of the mixed dentition. Finally, the third phase in permanent dentition was to align and level canines within the arch after extraction of the deciduous canines. For the viability of the permanent mandibular canines in the dental arch, orthosurgical traction was implemented, with a traction system with closed nickel-titanium coil springs with a transitory rigid dental-mucous-supported anchorage device, which allowed control and protection of the adjacent teeth and movements with helical forces of a controlled three-dimensional range. The results of the treatment were adequate, achieving consolidated molar and canine relationships, overjet, overbite, and optimal facial balance.
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Affiliation(s)
- Gustavo Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogota, Colombia
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogota, Colombia
| | - Vinicius Dutra
- Department of Oral Pathology, Medicine, and Radiology, School of Dentistry, Indiana University, Indianapolis, Indiana, USA
| | - Mabel Mejía-Milian
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
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Medina-Grandez AF, Llontop-Palma L, Ruíz-Mora GA, Rodríguez-Cárdenas YA, Aliaga-Del Castillo A, Dutra V, Arriola-Guillén LE. Concordance of the facial biotype between Bjork-Jarabak cephalometrics and photographic analysis of the facial opening angle. J Clin Exp Dent 2023; 15:e454-e458. [PMID: 37388439 PMCID: PMC10306386 DOI: 10.4317/jced.60506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 04/12/2023] [Indexed: 07/01/2023] Open
Abstract
Background Analysis of the facial biotype can provide useful information for orthodontic diagnosis and can determine the type of growth of a patient to guide orthodontic treatment. The objective of this study was to determine the concordance of the facial biotype according to Bjork-Jarabak cephalometric analysis and photographic analysis of the angle of facial opening in Peruvian individuals. Material and Methods This retrospective study included 244 cephalometric radiographs and frontal photographs of the same patients obtained from a database. The facial biotype (mesofacial, brachyfacial, or dolichofacial) was determined with the Björk-Jarabak polygon (cephalometric) and the angle of facial opening (photographic). Two trained investigators performed all the measurements. The concordance of the facial diagnosis was determined using correlations of the interclass coefficient and the kappa test. p<0.05. Results In cases with a mesofacial biotype, both analyses coincided in 60 individuals (68.2%), while in those diagnosed with a dolichofacial biotype, the analyses only coincided in 17 individuals (10.4%). There was no concordance between the two methods regarding the brachyfacial biotype since according to the angle of facial opening none of the individuals presented a brachyfacial biotype (kappa weighted test= 0.020, p=0.586). Conclusions Cephalometric and photographic analyses should be complementary and one should not substitute the other. Attention should be focused on dolichofacial and brachyfacial biotypes, which showed less concordance between evaluations. So, more studies are needed to follow this line of research. Key words:Facial biotype, cephalometry, photography, facial type, radiography.
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Affiliation(s)
| | | | - Gustavo-Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia; and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Yalil-Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
| | | | - Vinicius Dutra
- Department of Oral Pathology, Medicine, and Radiology, School of Dentistry, Indiana University
| | - Luis-Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
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Miranda F, Parra LD, Bastos JCDC, dos Santos AM, de Souza Silva I, Quevedo B, Aliaga-Del Castillo A, Garib D. Pain and discomfort perception during miniscrew-anchored maxillary protraction: secondary data analysis of a randomized clinical trial. Angle Orthod 2023; 93:490739. [PMID: 36795039 PMCID: PMC10117207 DOI: 10.2319/092022-655.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 12/01/2022] [Indexed: 02/17/2023] Open
Abstract
OBJECTIVES To compare the perception of pain and discomfort of patients and guardians during treatment between miniscrew-anchored maxillary protraction (MAMP) therapy using Hybrid (HH) and Conventional Hyrax (CH) expanders. MATERIALS AND METHODS Group HH was composed of 18 subjects (8 female, 10 male; initial age: 10.80 years) with Class III malocclusion treated with a hybrid expander in the maxilla and two miniscrews in the anterior region of the mandible. Class III elastics were used from maxillary first molar to mandibular miniscrews. Group CH was composed of 14 subjects (6 female, 8 male; initial age: 11.44 years) treated with a similar protocol except for conventional Hyrax expander. Pain and discomfort of patients and guardians were assessed using a visual analog scale immediately after placement (T1), after 24 hours (T2), and 1 month after appliance installation (T3). Mean differences (MD) were obtained. Intergroup and intragroup timepoint comparisons were performed using independent t-tests, analysis of variance for repeated measures and Friedman test (P < 5%). RESULTS Both groups demonstrated similar levels of pain and discomfort with a significant decrease after 1 month of appliance placement (MD: 4.21; P = .608). Compared to patient perceptions, guardians reported a higher level of pain and discomfort at all timepoints (MD, T1: 13.91, P < .001; T2: 23.15, P < .001; T3: 9.35, P = .008). CONCLUSIONS MAMP therapy with HH and CH produced similar levels of pain and discomfort after appliance installation until 1 month after treatment. Pain and discomfort may not influence the choice between HH and CH expanders.
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Bastiani C, Bellini-Pereira SA, Aliaga-Del Castillo A, Chiqueto K, Castanha Henriques JF, Janson G. Twin-block and mandibular anterior repositioning appliances effects in Class II malocclusion correction. Am J Orthod Dentofacial Orthop 2023; 163:181-190. [PMID: 36202696 DOI: 10.1016/j.ajodo.2021.09.021] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Revised: 09/01/2021] [Accepted: 09/01/2021] [Indexed: 02/01/2023]
Abstract
INTRODUCTION The objective of this study was to compare the cephalometric changes in Class II Division 1 malocclusion patients treated with the Twin-block (TB) and the mandibular anterior repositioning appliance (MARA). METHODS This retrospective study was performed with 132 lateral cephalograms of patients with Class II malocclusion divided into 3 groups: a TB group comprised 21 patients with mean initial and final ages of 10.59 and 11.97 years, respectively, treated for a mean period of 1.38 years; a MARA group comprised 21 patients with mean initial and final ages of 11.98 and 13.20 years, respectively, treated for a mean period of 1.22 years; and a control group included 24 subjects with untreated Class II malocclusion with mean initial and final ages of 10.55 and 12.01 years, respectively, observed for a mean period of 1.46 years. Cephalometric intergroup comparisons regarding the treatment changes (T2 - T1) were performed with the analysis of covariance, followed by Tukey tests. RESULTS Both appliances demonstrated significant restriction of the maxilla and improvement of the maxillomandibular relationship. The MARA produced a significantly greater amount of labial tipping and protrusion of the mandibular incisors than the other groups. The TB showed significant extrusion of the mandibular incisors and molars compared with MARA and control, respectively. Both treated groups reduced the overjet and overbite. The MARA presented a significantly greater reduction in the molar relationship than the other groups. CONCLUSIONS The appliances showed a headgear effect on the maxilla and effectively changed Class II cephalometric parameters through a combination of skeletal and dentoalveolar effects. TB showed a greater increase in LAFH. MARA promoted greater labial tipping and protrusion of the mandibular incisors.
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Affiliation(s)
- Cristina Bastiani
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil.
| | | | - Aron Aliaga-Del Castillo
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil; Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Kelly Chiqueto
- Department of Orthodontics, Porto Alegre Dental School, Federal University of Rio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil
| | | | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
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21
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Góngora-León I, Alarcón-Calle CS, Aliaga-Del Castillo A, Flores-Mir C, Arriola-Guillén LE. Association of breastfeeding duration with the development of non-nutritive habits, and transversal and vertical occlusal alterations in preschool children: A cross-sectional study. Dent Med Probl 2023; 60:47-53. [PMID: 36961402 DOI: 10.17219/dmp/145416] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2021] [Revised: 12/27/2021] [Accepted: 12/29/2021] [Indexed: 03/25/2023] Open
Abstract
BACKGROUND Breastfeeding has multiple nutritional, immunological and psychological benefits, as well as a positive influence on the development of the stomatognathic system. OBJECTIVES The present study attempted to determine the relationship between the duration of breastfeeding and the development of non-nutritive habits, and transversal and vertical occlusal alterations in preschool children. MATERIAL AND METHODS This cross-sectional study involved 155 preschoolers aged 2-5 years from 3 public schools in Lima, Peru. The sample was divided into 2 groups with regard to the duration of breastfeeding: group A (n = 50) included infants that had been breastfed for up to 6 months; and group B (n = 105) included infants that had been breastfed for 6-12 months. Two trained and calibrated dentists evaluated each group, and clinically determined the presence or absence of transversal or vertical occlusal alterations. Likewise, the children's parents or caregivers were consulted to determine the development of non-nutritive habits. RESULTS A significant association was found between breastfeeding duration and the development of the oral breathing habit; groups A and B showed a prevalence of 30.0% and 16.2%, respectively (p = 0.048). Likewise, breastfeeding duration affected the appearance of oral breathing (OR (odds ratio) = 0.84; 95% CI (confidence interval): 0.74-0.96; p = 0.011). Furthermore, the use of a bottle for more than 24 months significantly influenced the appearance of oral habits (OR = 3.55; 95% CI: 1.20-10.55; p = 0.022) and open bite (OR = 12.12; 95% CI: 1.16-126.31; p = 0.037). CONCLUSIONS Breastfeeding duration of 6-12 months was shown to be a protective factor in preventing the appearance of oral breathing. Posterior crossbite (PCB), open bite and deep bite seemed not to be influenced by breastfeeding duration. However, the use of a bottle for more than 24 months significantly influenced the appearance of anterior open bite.
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Affiliation(s)
- Ingrid Góngora-León
- Division of Pediatric Dentistry, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
| | - Catherine Sharlot Alarcón-Calle
- Division of Pediatric Dentistry, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
| | | | - Carlos Flores-Mir
- Department of Orthodontics, Faculty of Medicine and Dentistry, College of Health Sciences, University of Alberta, Edmonton, Canada
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
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22
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Melchor-Soto ME, Arriola-Guillén LE, Aliaga-Del Castillo A, Ruíz-Mora GA, Rodríguez-Cárdenas YA. Root morphology of lateral incisors adjacent to impacted maxillary canines: A cone-beam computed tomography retrospective cross-sectional study. Int Orthod 2022; 20:100692. [PMID: 36410930 DOI: 10.1016/j.ortho.2022.100692] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 08/29/2022] [Accepted: 08/29/2022] [Indexed: 11/30/2022]
Abstract
INTRODUCTION To compare the root morphology of the maxillary lateral incisors (MLIs) adjacent to an impacted (IMC) versus non-impacted maxillary canine (non-IMC). MATERIALS AND METHODS This cross-sectional study included cone beam computed tomography (CBCT) images derived from 154 subjects (with unilateral/bilateral impacted maxillary canines or without canine impaction). Each MLI was considered as a unit of analysis. Thus, the study group included 122 MLIs adjacent to impacted maxillary canine (IMCG) and the control group included 122 MLIs adjacent to a non-impacted maxillary canine (CG). Groups were matched by age, sex and evaluation side. Root length, root dilaceration angle and root convergence angle were evaluated in both the coronal and sagittal planes. Comparisons between groups were made with Student's t-test and the chi-square test with Bonferroni correction (P<0.008, P<0.01, respectively). RESULTS The root measurements of the MLIs showed some significant differences between the groups. The coronal root length was 0.52mm shorter but not highly significant (P=0.032), the coronal root dilaceration angle was 7.51° smaller (P<0.001), and the coronal root convergence angle was 1.28° greater (P<0.001) in the IMCG compared to the CG. The orientation of root dilaceration in the MLIs showed significant differences between the groups: it was mostly distopalatal in the GC (87.5%), to a lesser extent in the IMCG (58.9%) and also mesiopalatal in the IMCG (22.3%), (P=0.001). CONCLUSIONS The root morphology of MLIs adjacent to an IMC showed a tendency of shorter length, smaller root dilaceration and greater root convergence in the coronal section than MLIs adjacent to a non-IMC.
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Affiliation(s)
- Miguel Edgardo Melchor-Soto
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Luis Ernesto Arriola-Guillén
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru; Division of Orthodontics, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, United States.
| | - Gustavo Armando Ruíz-Mora
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru; Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru; Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
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23
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Anraki CC, Campos CBA, Sant’Anna GQ, Bellini-Pereira SA, Aliaga-Del Castillo A, Grec R, Henriques JFC, Garib D. Dentoskeletal and soft-tissue changes of class II malocclusion treatment with modified first class appliances: a prospective clinical trial. Eur J Orthod 2022; 45:150-156. [PMID: 36331520 DOI: 10.1093/ejo/cjac065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Summary
Background/Objectives
Intraoral distalizers are effective and conservative alternatives for Class II malocclusion treatment. However, the literature is still controversial regarding the effects of using skeletal anchorage in intraoral distalizers with different designs. The aim of this study is to compare dentoskeletal and soft-tissue changes of Class II malocclusion patients treated with three types of First Class (FC) distalizers.
Materials/Methods
The sample of this prospective clinical trial included 30 consecutive patients divided into three groups: G1—FC conventionally anchored; G2—FC skeletally anchored Type 1; G3—FC skeletally anchored Type 2. Each group consisted of 10 patients. Lateral cephalograms were analyzed in two stages: at pre-treatment (T0) and after distalization (T1). The radiographs were digitized and analyzed using the software Dolphin Imaging 11.5. Comparisons of treatment changes between groups (T1–T0) were performed using one-way analysis of variance (ANOVA), followed by the Tukey test.
Results
Patients treated with the conventionally anchored FC showed significantly greater incisors protrusion and labial inclination, second premolars mesial inclination and mesialization than the FCs skeletally anchored. No differences were observed regarding the amount of molar distalization and molar angulation between groups.
Limitations
It can be considered that the limitation of this study lies in its non-randomized design.
Conclusions/Implications
First Class distalizers with conventional and skeletal anchorage are effective alternatives for Class II molar distalization. Distalization associated with indirect skeletal anchorage reduce the undesirable effects observed in the incisors and premolars during distalization when compared to distalization conventionally anchored.
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Affiliation(s)
| | | | | | | | - Aron Aliaga-Del Castillo
- Department of Orthodontics, Bauru Dental School, University of São Paulo , Bauru , Brazil
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan , Ann Arbor , USA
| | - Roberto Grec
- Department of Orthodontics, Bauru Dental School, University of São Paulo , Bauru , Brazil
| | | | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo , Bauru , Brazil
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24
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Lancia M, Ciantelli TL, Bellini-Pereira S, Aliaga-Del Castillo A, Moro A, Henriques JF, Janson G. Long-term stability of Class II malocclusion treatment with the cantilever bite jumper. Am J Orthod Dentofacial Orthop 2022; 162:695-703. [PMID: 35985966 DOI: 10.1016/j.ajodo.2021.06.025] [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: 10/01/2020] [Revised: 06/01/2021] [Accepted: 06/01/2021] [Indexed: 11/01/2022]
Abstract
INTRODUCTION This study aimed to assess the long-term stability of Class II malocclusion treatment with the Cantilever Bite Jumper (CBJ) after 13 years of follow-up. METHODS The treatment group comprised 10 Class II Division 1 malocclusion patients treated with the CBJ, followed by fixed appliances, analyzed at 3 stages: pretreatment (aged 11.56-14.32 years), posttreatment (aged 16.34-19.58 years), and long-term posttreatment (aged 29.04-32.33 years). The control group included 15 subjects with normal occlusion. Intragroup treatment changes comparison was performed with repeated measures and analysis of variance followed by Tukey tests. Intergroup comparisons regarding the long-term posttreatment changes were performed with t tests. RESULTS No statistically significant relapse was observed during the follow-up period. Morever, the treated group presented a significantly smaller increase in lower anterior facial height and greater retrusion of the lower lip than the control group in the posttreatment period. CONCLUSIONS Treatment with the CBJ, followed by fixed appliances, is a stable alternative for Class II Division 1 malocclusion correction. The dentoskeletal and soft-tissue changes obtained during treatment remained stable in the long-term posttreatment follow-up.
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Affiliation(s)
- Melissa Lancia
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Thales Lippi Ciantelli
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil.
| | | | | | - Alexandre Moro
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | | | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
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25
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Ruíz-Mora GA, Arriola-Guillén LE, Aliaga-Del Castillo A, Rodríguez-Cárdenas YA, Avalos-Hernández RE. Multiple eruptive delay as a variant of primary eruption failure. A preliminary case report. J Stomatol Oral Maxillofac Surg 2022; 123:e922-e929. [PMID: 35850440 DOI: 10.1016/j.jormas.2022.07.009] [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] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 05/23/2022] [Accepted: 07/15/2022] [Indexed: 11/18/2022]
Abstract
Primary failure of eruption (PFE) is an autosomal disease that occurs in approximately 0.06% of the population and is defined as the malfunction of dental eruptive mechanisms with delay and absence of these processes in a non-ankylosed tooth. Treatment options for patients with eruptive delays range from prosthetic to surgical interventions. Although this condition is relatively rare, the occurrence of eruptive disorders in clinical dental practice is becoming more frequent. Correct diagnosis of this eruptive anomaly plays an essential role in treatment planning. The aim of this case report was to describe the treatment of a case of multiple PFE with a biomechanical approach to extrusive traction using NiTi closed coil springs and a customized rigid anchorage. In conclusion, complex orthodontic cases with eruptive delay and variants of PFE can be successfully intervened to make morphologically and functionally compromised dental organs viable, if diagnosed and treated in a timely and preventive manner by a multidisciplinary approach using alternative biomechanics for efficient osteogenic traction.
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Affiliation(s)
- Gustavo Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia; and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú.
| | - Aron Aliaga-Del Castillo
- Postdoctoral Fellow. Department of Orthodontics, Bauru Dental School. University of São Paulo, Brazil
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
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26
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Rodriguez-Tarma ZA, Estrada-Vitorino MA, Carruitero MJ, Portocarrero-Reyes W, Castillo AAD, Flores-Mir C, Janson G. A new instrument to clinically evaluate the anteroposterior relationship of the maxillary central incisors to the forehead. J World Fed Orthod 2022; 11:176-180. [DOI: 10.1016/j.ejwf.2022.07.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2022] [Revised: 07/03/2022] [Accepted: 07/03/2022] [Indexed: 10/16/2022]
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27
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Avalos-Hernández RE, Arriola-Guillén LE, Aliaga-Del Castillo A, Rodríguez-Cárdenas YA, Ruíz-Mora GA. Primary failure of eruption: occlusal and dentoalveolar characteristics in mixed and permanent dentition. A study with cone beam computed tomography. J Clin Exp Dent 2022; 14:e520-e527. [PMID: 35912030 PMCID: PMC9328488 DOI: 10.4317/jced.59657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2022] [Accepted: 05/26/2022] [Indexed: 12/05/2022] Open
Abstract
Background The main objective of this study was to describe the dentoalveolar and occlusal characteristics of subjects with primary failure of eruption (PFE) in cone beam computed tomography (CBCT) and compare them with a control group without the anomaly.
Material and Methods This retrospective and comparative study evaluated CBCT images of 80 permanent molars divided into 2 groups of 40 molars each, which had or did not have PFE characteristics. Using CBCT a calibrated orthodontist performed 23 measurements related to the distances of the cusps to the occlusal, palatal and mandibular planes and measured the buccal-palatal and mesiodistal widths of the molar crowns and their root lengths. Independent Student’s t or Mann-Whitney U tests were used to compare occlusal and dentoalevolar characteristics between groups according to the normality of the data. P<0.05.
Results Molars affected by PFE were smaller in coronal dimensions in the PFE compared to the non-PFE group (Buccal-palatal crown width 11.60±0.95mm vs. 12.21±1.09 mm; p<0.001; and mesiodistal crown width 10.81± 1.07 mm vs. 11.84±1.32mm, respectively; p<0.001). The distal and mesial root lengths were approximately 2 mm smaller in the PFE group (p<0 .001). The three-dimensional bony position was more convergent with respect to the palatal plane, i.e., the crown was more inclined palatally and distally in the PFE compared to the non-PFE group.
Conclusions Patients with molars affected by PFE present smaller bucco-palatal, mesio-distal coronal widths and mesial and distal root lengths than those without PFE and in these teeth the crowns are more inclined palatally and distally in upper molars. These specific characteristics may be pathognomonic of PFE and should be considered by clinicians when evaluating or treating patients with this condition. Key words:Occlusal characteristics, primary failure of eruption, cone-beam CT.
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Affiliation(s)
| | - Luis-Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Aron Aliaga-Del Castillo
- Postdoctoral Fellow. Department of Orthodontics, Bauru Dental School. University of São Paulo, Brazil
| | - Yalil-Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia
| | - Gustavo-Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia; and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
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28
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Aliaga-Del Castillo A, Soldevilla L, Valerio MV, Bellini-Pereira SA, Vilanova L, Arriola-Guillén LE, Janson G. Authors’ response. Am J Orthod Dentofacial Orthop 2022; 161:616-617. [DOI: 10.1016/j.ajodo.2022.01.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Accepted: 01/15/2022] [Indexed: 11/25/2022]
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29
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Aliaga-Del Castillo A, Bellini-Pereira SA, Vilanova L, Miranda F, Massaro C, Arriola-Guillén LE, Garib D, Janson G. Authors’ response. Am J Orthod Dentofacial Orthop 2022; 161:614-615. [DOI: 10.1016/j.ajodo.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2022] [Accepted: 01/13/2022] [Indexed: 11/28/2022]
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30
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Ramos-Herrada RM, Arriola-Guillén LE, Atoche-Socola KJ, Bellini-Pereira SA, Castillo AAD. Effects of botulinum toxin in patients with myofascial pain related to temporomandibular joint disorders: A systematic review. Dent Med Probl 2022; 59:271-280. [PMID: 35775414 DOI: 10.17219/dmp/145759] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 11/24/2022] Open
Abstract
Botulinum toxin is used as an alternative for the treatment of chronic refractory myofascial pain derived from temporomandibular disorders (TMDs). It is important to establish the benefits of botulinum toxin in this type of symptomatology. The aim of the study was to conduct a systematic review in order to evaluate the effects of botulinum toxin in patients with myofascial pain related to temporomandibular disorders. The search was carried out systematically, without limitations of language or year of publication, until February 2021. The databases searched included PubMed, Web of Science, Scopus, The Cochrane Library, and Latin American and Carribean Health Sciences Literature (LILACS). Partial gray literature was searched using Google Scholar, ClinicalTrials.gov, OpenGrey, and the reference lists of selected articles. Randomized controlled clinical trials evaluating the effects of botulinum toxin in the treatment of myofascial pain were included. The risk of bias was assessed with the Cochrane RoB 2.0 tool, and the The Grading of Recommendations Assessment, Development and Evaluation (GRADE) approach was used to determine the certainty of the scientific evidence. A total of 900 studies were retrieved, out of which only 8 randomized clinical trials were selected. From these 8 studies, the data of a total of 314 patients, predominantly women, between the ages of 18 to 75 years was obtained. After the assessment of the studies with the RoB 2.0 tool, 7 studies showed some concerns regarding the reported results and only one was at a low risk of overall bias. The analysis of the studies has shown that low doses of botulinum toxin are effective in the treatment of refractory myofascial pain associated with temporomandibular disorders. The studies presented mediumto low-certainty evidence..
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Affiliation(s)
- Rosa Marina Ramos-Herrada
- Division of Oral Rehabilitation, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru.,Division of Oral and Maxillofacial Radiology, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
| | - Katherine Joselyn Atoche-Socola
- Division of Oral Rehabilitation, School of Dentistry, Scientific University of the South (Universidad Científica del Sur), Lima, Peru
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31
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de Castro Ribeiro TT, Castillo RAD, Ozawa TO, Ramalho-Ferreira G, Castillo AAD, Janson G. Late alveolar bone grafting in complete unilateral cleft lip and palate (UCLP): Biomechanical considerations for the success of orthodontic finishing. J Orthod 2022; 49:457-462. [PMID: 35323076 DOI: 10.1177/14653125221087289] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Orthodontic treatment in patients with cleft lip and palate (CLP) is challenging. Alignment of the maxillary segments and orthodontic levelling of the teeth adjacent to the cleft area are important before alveolar bone grafting (ABG), in the permanent dentition. In this clinical report, orthodontic procedures, before and after late ABG, are described as an alternative that can optimise the orthodontic and periodontal results. The gingival margins of the teeth adjacent to the cleft area were levelled. Root divergence was corrected. Interdental papilla and improvement of the periodontal condition were obtained.
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Affiliation(s)
- Tiago Turri de Castro Ribeiro
- Department of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil
| | - Rosalinda Aliaga-Del Castillo
- Department of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil
| | - Terumi Okada Ozawa
- Department of Orthodontics, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil
| | - Gabriel Ramalho-Ferreira
- Department of Oral and Maxillofacial Surgery, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, SP, Brazil
| | | | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, SP, Brazil
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Aristizábal-Elejalde D, Casanova-Sarmiento JA, Guerrero ME, Aliaga-Del Castillo A, Ruiz-Mora GA, Rodríguez-Cárdenas YA. Concrescence in anterior teeth assessed by cone beam computed tomography. A case report. Rev Cient Odontol (Lima) 2022; 10:e102. [PMID: 38389912 PMCID: PMC10880706 DOI: 10.21142/2523-2754-1001-2022-102] [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] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2021] [Accepted: 01/22/2022] [Indexed: 02/24/2024] Open
Abstract
Dental concrescence is an anomaly in which the cementum overlying the roots joins, causing the union of two different teeth. It is often reported in posterior dentition, affecting certain dental procedures such as root canal treatment, periodontal procedures, orthodontic movement and dental extraction. This case report describes the successful diagnosis and treatment of a 20-year-old male with a moderate skeletal class II who was referred for a radiographic evaluation after 1 year of failed orthodontic movement of teeth 1.1 and 1.2. The radiographic assessment with a Cone Beam Computed Tomography allowed discard other related pathologies and diagnose a dental concrescence. The patient underwent orthognathic surgery in which the class II was corrected, and the concrescence was treated with a prosthetic approach.
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Affiliation(s)
- David Aristizábal-Elejalde
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Universidad Científica del Sur Division of Oral and Maxillofacial Radiology School of Dentistry Universidad Científica del Sur Lima Peru
| | - Juan Alejandro Casanova-Sarmiento
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú. Universidad Científica del Sur Division of Oral and Maxillofacial Radiology School of Dentistry Universidad Científica del Sur Lima Peru
| | - María Eugenia Guerrero
- Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Nacional Mayor de San MarcosLima, Perú. Universidad Nacional Mayor de San Marcos Division of Oral and Maxillofacial Radiology School of Dentistry Universidad Nacional Mayor de San Marcos Lima Peru
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics. Bauru Dental School. University of Sao Paulo, Brazil. Universidade de São Paulo Department of Orthodontics Bauru Dental School University of Sao Paulo Brazil
| | - Gustavo Armando Ruiz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia. Universidad Nacional de Colombia Division of Orthodontics Faculty of Dentistry Universidad Nacional de Colombia Bogotá D.C Colombia
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Oral and Maxillofacial Radiology, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá D.C, Colombia. Universidad Nacional de Colombia Division of Oral and Maxillofacial Radiology Faculty of Dentistry Universidad Nacional de Colombia Bogotá D.C Colombia
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33
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Bellini-Pereira SA, Aliaga-Del Castillo A, Dos Santos CCO, Henriques JFC, Janson G, Normando D. Treatment stability with bonded versus vacuum-formed retainers: a systematic review of randomized clinical trials. Eur J Orthod 2021; 44:187-196. [PMID: 34719722 DOI: 10.1093/ejo/cjab073] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND In orthodontics, the retention phase can be considered challenging and unpredictable. Therefore, evidence obtained from different retention protocols is important to facilitate clinical decision-making. OBJECTIVES This systematic review aimed to compare the clinical effectiveness of bonded versus vacuum-formed retainers (VFRs) regarding their capacity to maintain treatment stability, periodontal effects, and failure rates. SEARCH METHODS AND ELIGIBILITY CRITERIA Ten databases comprising published and unpublished literature were systematically searched up to August 2021. Randomized clinical trials (RCTs) comparing both retainers were included. DATA COLLECTION AND ANALYSIS The risk of bias (RoB) evaluation was performed with the Cochrane Collaboration RoB Tool 2.0. All steps of the screening phase and RoB assessment were performed independently by two reviewers. The Grade of Recommendations, Assessment, Development, and Evaluation (GRADE) was used to evaluate the certainty of the evidence. RESULTS Initial database search yielded 923 studies. After duplicates removal and full-text assessment, five RCTs remained. Overall, the studies presented Low RoB, except one study judged with 'Some concerns'. Based on the included studies, on a short-term (3-6 months) and long-term (4 years) basis, bonded retainers (BRs) were more effective to maintain treatment stability than VFRs in the lower arch. However, from 12 to 24 months both retainers presented the same efficacy. In the upper arch, the retainers were equally effective. BRs were associated with greater plaque and calculus accumulation than VFRs after 12 months. The retainers' failure rates were similar in the upper arch on the first year of retention; however, after 2 years VFRs showed significantly greater failure rates. Contrarily, BRs presented greater failure rates in the lower arch than VFRs. LIMITATIONS The findings of the included studies may be influenced by different factors related to the unpredictability of relapse. CONCLUSIONS Most of the evidence generated in this systematic review derived from a moderate level of certainty. In the lower arch, BRs are more effective than VFRs to maintain treatment stability in the initial 6 months of retention and in the long term. In the upper arch, both retention protocols are equally effective. REGISTRATION Regist0ration number: PROSPERO CRD42020199392. FUNDING Coordination for the Improvement of Higher Educational Personnel (CAPES, Process code-001).
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Affiliation(s)
| | | | | | | | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
| | - David Normando
- Department of Orthodontics, Federal University of Pará, Belém, Brazil
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Deleat-Besson R, Le C, Al Turkestani N, Zhang W, Dumont M, Brosset S, Carlos Prieto J, Cevidanes L, Bianchi J, Ruellas A, Gurgel M, Massaro C, Aliaga-Del Castillo A, Ioshida M, Yatabe M, Benavides E, Rios H, Soki F, Neiva G, Fernando Aristizabal J, Rey D, Antonia Alvarez M, Najarian K, Gryak J, Styner M, Fillion-Robin JC, Paniagua B, Soroushmehr R. Automatic Segmentation of Dental Root Canal and Merging with Crown Shape. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:2948-2951. [PMID: 34891863 DOI: 10.1109/embc46164.2021.9630750] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In this paper, machine learning approaches are proposed to support dental researchers and clinicians to study the shape and position of dental crowns and roots, by implementing a Patient Specific Classification and Prediction tool that includes RootCanalSeg and DentalModelSeg algorithms and then merges the output of these tools for intraoral scanning and volumetric dental imaging. RootCanalSeg combines image processing and machine learning approaches to automatically segment the root canals of the lower and upper jaws from large datasets, providing clinical information on tooth long axis for orthodontics, endodontics, prosthodontic and restorative dentistry procedures. DentalModelSeg includes segmenting the teeth from the crown shape to provide clinical information on each individual tooth. The merging algorithm then allows users to integrate dental models for quantitative assessments. Precision in dentistry has been mainly driven by dental crown surface characteristics, but information on tooth root morphology and position is important for successful root canal preparation, pulp regeneration, planning of orthodontic movement, restorative and implant dentistry. In this paper we propose a patient specific classification and prediction of dental root canal and crown shape analysis workflow that employs image processing and machine learning methods to analyze crown surfaces, obtained by intraoral scanners, and three-dimensional volumetric images of the jaws and teeth root canals, obtained by cone beam computed tomography (CBCT).
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Le C, Deleat-Besson R, Prieto J, Brosset S, Dumont M, Zhang W, Cevidanes L, Bianchi J, Ruellas A, Gomes L, Gurgel M, Massaro C, Aliaga-Del Castillo A, Yatabe M, Benavides E, Soki F, Al Turkestani N, Evangelista K, Goncalves J, Valladares-Neto J, Alves Garcia Silva M, Chaves C, Costa F, Garib D, Oh H, Gryak J, Styner M, Fillion-Robin JC, Paniagua B, Najarian K, Soroushmehr R. Automatic Segmentation of Mandibular Ramus and Condyles. Annu Int Conf IEEE Eng Med Biol Soc 2021; 2021:2952-2955. [PMID: 34891864 PMCID: PMC8994041 DOI: 10.1109/embc46164.2021.9630727] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
In order to diagnose TMJ pathologies, we developed and tested a novel algorithm, MandSeg, that combines image processing and machine learning approaches for automatically segmenting the mandibular condyles and ramus. A deep neural network based on the U-Net architecture was trained for this task, using 109 cone-beam computed tomography (CBCT) scans. The ground truth label maps were manually segmented by clinicians. The U-Net takes 2D slices extracted from the 3D volumetric images. All the 3D scans were cropped depending on their size in order to keep only the mandibular region of interest. The same anatomic cropping region was used for every scan in the dataset. The scans were acquired at different centers with different resolutions. Therefore, we resized all scans to 512×512 in the pre-processing step where we also performed contrast adjustment as the original scans had low contrast. After the pre-processing, around 350 slices were extracted from each scan, and used to train the U-Net model. For the cross-validation, the dataset was divided into 10 folds. The training was performed with 60 epochs, a batch size of 8 and a learning rate of 2×10-5. The average performance of the models on the test set presented 0.95 ± 0.05 AUC, 0.93 ± 0.06 sensitivity, 0.9998 ± 0.0001 specificity, 0.9996 ± 0.0003 accuracy, and 0.91 ± 0.03 F1 score. This study findings suggest that fast and efficient CBCT image segmentation of the mandibular condyles and ramus from different clinical data sets and centers can be analyzed effectively. Future studies can now extract radiomic and imaging features as potentially relevant objective diagnostic criteria for TMJ pathologies, such as osteoarthritis (OA). The proposed segmentation will allow large datasets to be analyzed more efficiently for disease classification.
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Aliaga-Del Castillo A, Vilanova L, Janson G, Arriola-Guillén LE, Garib D, Miranda F, Massaro C, Yatabe M, Cevidanes L, Ruellas AC. Comparison and reproducibility of three methods for maxillary digital dental model registration in open bite patients. Orthod Craniofac Res 2021; 25:269-279. [PMID: 34543518 DOI: 10.1111/ocr.12535] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 08/26/2021] [Accepted: 09/13/2021] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To compare and assess the reproducibility of 3 methods for registration of maxillary digital dental models in patients with anterior open bite. Settings and sample population Digital dental models of 16 children with an anterior open bite in the mixed dentition were obtained before (T1) and after 12 months of treatment with bonded spurs (T2). METHODS Landmarks were placed on all T2 models and 3 registration methods (R1, R2 and R3) were independently performed by 2 observers. R1 was based on 10 landmarks placed on posterior teeth. R2 was based on 5 landmarks on the palate (2 anterior, 2 posterior and 1 central). R3 used regions of interest around the 5 palatal landmarks used in R2. The differences between the registration methods were calculated by comparing the mean differences and standard deviations between the corresponding x, y and z coordinates of 6 corresponding landmarks in the T2 registered models. Repeated measures analysis of variance followed by post-hoc Bonferroni tests were used for comparisons (P < .05). The agreement between methods and the intra and interobserver reproducibility were assessed with Bland-Altman tests and intraclass correlation coefficients (ICC). RESULTS Comparisons of R2 with R3 methods showed greater agreement, mean differences ≤0.50 mm for all landmarks, than comparisons of R1 with R2, and R1 with R3, mean differences >0.50 mm for most of the y and z coordinates (P < .05). The R1 and R3 methods presented excellent intra and interobserver reproducibility and R2 method had moderate interobserver reproducibility. CONCLUSIONS Longitudinal assessments of open bite treatment using digital dental models could consider the posterior teeth and/or the palate as references. The R1 and R3 methods showed adequate reproducibility and yield different quantitative results. The choice will depend on the posterior teeth changes and dental models' characteristics.
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Affiliation(s)
| | - Lorena Vilanova
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | - Guilherme Janson
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Daniela Garib
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil.,Department of Orthodontics, Hospital of Rehabilitation of Craniofacial Anomalies, University of São Paulo, Brazil
| | - Felicia Miranda
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | - Camila Massaro
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | - Marilia Yatabe
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Lucia Cevidanes
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Antonio Carlos Ruellas
- Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, USA.,Department of Orthodontics, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
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Janson G, F Almeida JÃ, Valerio MV, Velásquez G, Aliaga-Del Castillo A, Gamba Garib D. Changes in third molar position after Class II subdivision malocclusion treatment with asymmetric extractions. Orthod Craniofac Res 2021; 25:226-233. [PMID: 34402185 DOI: 10.1111/ocr.12530] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Revised: 08/04/2021] [Accepted: 08/11/2021] [Indexed: 11/27/2022]
Abstract
INTRODUCTION This study aimed to assess the changes in third molars angulation and their available space after Class II subdivision malocclusion treatment with asymmetric premolar extractions. METHODS The sample consisted of 37 patients (17 male, 20 female and mean age 13.18 ± 1.99 years) in group 1 (Type 1 Class II subdivision) and 25 (10 male, 15 female, mean age 13.56 ± 2.46 years) in group 2 (Type 2 Class II subdivision). In group 1, extractions were performed in the two maxillary quadrants and in the Class I mandibular quadrant. In group 2, extraction was performed in the Class II maxillary quadrant. Panoramic radiographs were used to evaluate third molar angulations and their available space pre- and post-treatment. Radiographic measurements were performed with Dolphin® Imaging 11.9. Paired t tests were used for intragroup comparison between stages and sides. RESULTS In Type 1, there were similar improvements in third molar angulations and increases in the space available on the extraction quadrants in the maxillary arch. In the mandibular arch, there was significantly greater improvement in angulation and greater space availability in the extraction quadrant after treatment. In Type 2, there was significantly greater improvement in angulation and available space for the maxillary third molar on the extraction quadrant. In the mandibular arch, there was a similar improvement in the available space for the third molars. CONCLUSIONS After treatment, both groups presented better angulation and significantly greater space for third molar eruptions on the extraction quadrants, when compared to the homologous non-extraction quadrants.
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Affiliation(s)
- Guilherme Janson
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | - JÃcssica F Almeida
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | | | - Gonzalo Velásquez
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
| | | | - Daniela Gamba Garib
- Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil.,Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Brazil
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Aliaga-Del Castillo A, Soldevilla L, Valerio MV, Bellini-Pereira SA, Vilanova L, Arriola-Guillén LE, Janson G. Class II malocclusion treatment with a customized dual force distalizer. Am J Orthod Dentofacial Orthop 2021; 160:743-756. [PMID: 34332795 DOI: 10.1016/j.ajodo.2020.06.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 06/01/2020] [Accepted: 06/01/2020] [Indexed: 10/20/2022]
Abstract
Intraoral distalizers associated with skeletal anchorage provide the major benefit of promoting molar distalization with minimum anchorage loss and patient cooperation. This case report presents the treatment of a 17-year-old female with Class II Division 2 malocclusion, maxillary dentoalveolar protrusion, mild mandibular retrusion, increased overjet, deepbite, and lip incompetence. The treatment plan involved initial maxillary molar distalization with a customized version of the skeletally anchored dual force distalizer (DFD). The customized DFD used smaller mini-implants and included a fixed anterior biteplane. The device applied simultaneous forces from the buccal and palatal sides directly to the molars using nickel-titanium coil springs and allowed orthodontic mechanics in the mandibular teeth. An overcorrected Class I molar relationship was obtained after 6 months. After the distalization phase, retraction mechanics began with retraction loops and using a modified transpalatal bar reinforced with the mini-implants as anchorage. Moreover, the finishing phase was performed with multiloop edgewise archwires and intermaxillary elastics to enable an individualized control of each tooth. Total treatment time comprised 2 years 4 months, and significant improvements regarding the facial and occlusal perspectives were noticed. Similarly, these favorable changes remained stable during the 2-year follow-up period. The customized version of the skeletally anchored DFD followed by fixed appliances showed effectiveness and stability in Class II malocclusion treatment.
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Affiliation(s)
- Aron Aliaga-Del Castillo
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil; Department of Orthodontics, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima, Peru.
| | - Luciano Soldevilla
- Department of Orthodontics, Faculty of Dentistry, Universidad Nacional Mayor de San Marcos, Lima, Peru
| | - Marcelo Vinicius Valerio
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | | | - Lorena Vilanova
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
| | - Luis Ernesto Arriola-Guillén
- Divisions of Orthodontics and Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, São Paulo, Brazil
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Massaro C, Janson G, Miranda F, Aliaga-Del Castillo A, Pugliese F, Lauris JRP, Garib D. Dental arch changes comparison between expander with differential opening and fan-type expander: a randomized controlled trial. Eur J Orthod 2021; 43:265-273. [PMID: 32840319 DOI: 10.1093/ejo/cjaa050] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
OBJECTIVES To compare posterior crossbite correction frequency and dentoalveolar changes of the expander with differential opening (EDO) and the fan-type expander (FE). TRIAL DESIGN Two-arm parallel randomized controlled trial. METHODS Forty-eight patients from 7 to 11 years of age were allocated into two groups. Twenty-four patients were treated with the EDO and 24 patients were treated with the FE. Block randomization was performed. The study was single blind. Digital dental models were acquired before treatment and 6 months after rapid maxillary expansion. The primary outcomes were crossbite correction rate and maxillary arch width changes. Secondary outcomes were interincisal diastema, arch perimeter, length, size and shape, and mandibular dental arch changes. RESULTS The final sample comprised 24 patients (13 female and 11 male; mean initial age of 7.62 years) in the EDO group and 24 patients (14 female and 10 male; mean initial age of 7.83 years) in the FE group. The crossbites were corrected in 100 per cent of subjects from EDO group and in 75 per cent of patients in FE group. EDO showed greater increases in maxillary intermolar region (P < 0.001), while the FE demonstrated greater increases in the intercanine distance (P = 0.008). Increase in mandibular inter-first permanent molar distance was slightly greater in the EDO group (mean difference of 0.8 mm). Changes in arch length and perimeter were similar in both groups. Both expanders changed the maxillary arch shape. The post-treatment arch shape was larger in the anterior region for FE and in the posterior region in the EDO group. HARMS Discomfort during activation was reported by 54 per cent of the participants. A temporary change in the nasal bridge was reported by one patient from FE group. CONCLUSIONS Maxillary arch width and shape changes were distinct between the EDO and the FE. Greater transversal increases of the anterior and posterior regions were observed for the FE and the EDO, respectively. A slightly greater mandibular spontaneous expansion was observed for the EDO only at the molar region. TRIAL REGISTRATION NCT03705871.
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Affiliation(s)
- Camila Massaro
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
| | - Felicia Miranda
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil
| | | | - Fernando Pugliese
- Department of Orthodontics, School of Dental Medicine, Case Western Reserve University, Cleveland, OH, USA
| | | | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Brazil.,Department of Orthodontics, Hospital of Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
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Rodríguez-Cárdenas YA, Arriola-Guillén LE, Aliaga-Del Castillo A, Ruíz-Mora GA, Janson G, Cevidanes L, Ruellas AC, Yatabe M, Dias-Da Silveira HL. Three-dimensional changes in root angulation of buccal versus palatal maxillary impacted canines after orthodontic traction: A retrospective before and after study. Int Orthod 2021; 19:216-227. [PMID: 33967011 DOI: 10.1016/j.ortho.2021.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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: 02/01/2021] [Revised: 04/15/2021] [Accepted: 04/18/2021] [Indexed: 01/19/2023]
Abstract
INTRODUCTION The aim of this study was to three-dimensionally compare the root angulation changes after orthodontic traction of buccally versus palatally maxillary impacted canines (MICs). MATERIAL AND METHODS This retrospective study included patients from a private dental office of both sexes, older than 12 years, with at least one unilateral or bilateral buccal or palatal MIC, no loss of permanent teeth, with complete apical closure at the beginning of traction, and with CBCTs taken at pretreatment (T0) and after orthodontic traction (T1). The sample was divided in two groups according to their impaction site: buccal versus palatal. In all the scans, the MIC was segmented and the root angulation changes after traction were evaluated. The assessment included the sigma angle (projected on the XZ plane or coronal tomographic view), the delta angle (projected on the XY plane or axial view) and the epsilon angle (projected on the YZ plane, or sagittal view). Intragroup comparisons were performed with Wilcoxon signed-rank tests. Intergroup comparisons were performed with t-tests or Mann-Whitney U tests. Finally, the influence of MIC characteristics on the measured angles were evaluated with multiple linear regression analyses (α=0.05). RESULTS Thirty-three patients (16 men, mean age: 20.38; 17 women, mean age 18.37) with forty-five orthodontically treated MIC (19 buccal versus 26 palatal) were finally included. The palatal MICs showed greater mediolateral uprighting than the buccal MICs, root displacement towards the midsagittal plane, as demonstrated by the sigma angle (palatal group: 37.58±15.08°; buccal group: 29.17±31.15°; P=0.164) and delta (palatal group: -76.90±26.55°; buccal group: -30.56±41.67°; P<0.001)angle changes. The buccal MICs showed greater anteroposterior uprighting, anterior root displacement, as demonstrated by the epsilon angle (palatal group: -4.63±12.37°; buccal group: -25.96±17.79°; P<0.001). CONCLUSIONS Mediolateral and anteroposterior root angulation show significant differences after traction between buccal and palatal MICs. Palatal MICs showed greater medial root displacement while buccal MICs showed greater anterior root displacement. This condition should be considered for better planning of traction and orthodontic finishing.
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Affiliation(s)
- Yalil Augusto Rodríguez-Cárdenas
- Universidad Científica del Sur, School of Dentistry, Division of Oral and Maxillofacial Radiology, Lima, Peru; Universidad Nacional de Colombia, Faculty of Dentistry, Division of Orthodontics, Bogotá, DC, Colombia
| | - Luis Ernesto Arriola-Guillén
- Universidad Científica del Sur, School of Dentistry, Division of Orthodontics and Division of Oral and Maxillofacial Radiology, Lima, Peru
| | | | - Gustavo Armando Ruíz-Mora
- Universidad Científica del Sur, School of Dentistry, Division of Oral and Maxillofacial Radiology, Lima, Peru; Universidad Nacional de Colombia, Faculty of Dentistry, Division of Orthodontics, Bogotá, DC, Colombia
| | - Guilherme Janson
- University of São Paulo, Bauru Dental School, Department of Orthodontics, Bauru, Brazil
| | - Lucia Cevidanes
- University of Michigan, School of Dentistry, Department of Orthodontics and Paediatric Dentistry, Ann Arbor, MI, USA
| | - Antonio Carlos Ruellas
- University of Michigan, School of Dentistry, Department of Orthodontics and Paediatric Dentistry, Ann Arbor, MI, USA; Federal University of Rio de Janeiro, School of Dentistry, Department of Orthodontics, Rio de Janeiro, Brazil
| | - Marilia Yatabe
- University of Michigan, School of Dentistry, Department of Orthodontics and Paediatric Dentistry, Ann Arbor, MI, USA
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Bellini-Pereira SA, Aliaga-Del Castillo A, Vilanova L, Patel MP, Reis RS, Grec RHDC, Henriques JFC, Janson G. Sagittal, rotational and transverse changes with three intraoral distalization force systems: Jones jig, distal jet and first class. J Clin Exp Dent 2021; 13:e455-e462. [PMID: 33981392 PMCID: PMC8106932 DOI: 10.4317/jced.57993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/20/2020] [Indexed: 11/24/2022] Open
Abstract
Background To compare the maxillary dentoalveolar changes of patients treated with three distalization force systems: Jones Jig, Distal Jet and First Class appliances, using digitized models.
Material and Methods The retrospective sample comprised 118 digitized models of 59 patients with Class II malocclusion divided into three groups: Group 1 consisted of 22 patients treated with the Jones Jig appliance; Group 2 consisted of 20 patients treated with the Distal Jet, and Group 3 comprised 17 patients treated with the First Class appliance. Pretreatment and post-distalization plaster models of all patients were digitized and evaluated with OrthoAnalyzerTM software. The pretreatment and post-distalization variables regarding sagittal, rotational and transverse changes were compared by the One-way Analysis of Variance (ANOVA) and Kruskal-Wallis tests, depending on normality.
Results All appliances presented similar amounts of distalization. The Distal Jet appliance promoted significantly smaller mesial displacement of premolars and greater expansion of posterior teeth. The First Class presented the smallest rotation of the maxillary molars and treatment time.
Conclusions The distalizers were effective in correcting Class II molar relationship, however, a palatal force seems to provide fewer undesirable effects. Additionally, the degree of rotation and expansion was associated with the side of force application. Key words:Malocclusion, Angle Class II, Orthodontics, Corrective, Distalizers.
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Affiliation(s)
| | - Aron Aliaga-Del Castillo
- DDS, MSc, Postgraduate Student. Department of Orthodontics. Bauru Dental School. University of São Paulo, Brazil
| | - Lorena Vilanova
- DDS, MSc, Postgraduate Student. Department of Orthodontics. Bauru Dental School. University of São Paulo, Brazil
| | - Mayara-Paim Patel
- DDS, MSc, PhD. Assistant Professor. Department of Orthodontics. University of Guarulhos, São Paulo, Brazil
| | - Rachelle-Simões Reis
- DDS, MSc, PhD. Department of Orthodontics. Bauru Dental School. University of São Paulo, Brazil
| | | | | | - Guilherme Janson
- DDS, MSc, PhD. Professor and Head. Department of Orthodontics. Bauru Dental School, University of São Paulo, Brazil
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Aliaga-Del Castillo A, Bellini-Pereira SA, Vilanova L, Miranda F, Massaro C, Arriola-Guillén LE, Garib D, Janson G. Dental arch changes after open bite treatment with spurs associated with posterior build-ups in the mixed dentition: A randomized clinical trial. Am J Orthod Dentofacial Orthop 2021; 159:714-723.e1. [PMID: 33795189 DOI: 10.1016/j.ajodo.2020.11.036] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 11/01/2020] [Accepted: 11/01/2020] [Indexed: 01/10/2023]
Abstract
INTRODUCTION This single-center, 2-arm, parallel-group randomized clinical trial aimed to compare the dimensional dental arch changes after anterior open bite (AOB) treatment with bonded spurs associated with posterior build-ups vs bonded spurs alone. METHODS Patients aged between 7 and 11 years with AOB were recruited at a university clinic and randomly allocated into 2 groups. The experimental group was treated with bonded spurs associated with posterior build-ups (SBU) and the comparison group with bonded spurs alone (S). Digital dental models were obtained at pretreatment and after 12 months of treatment. The overbite change was the primary outcome. The randomization list was obtained at the Web site www.randomization.com. Allocation concealment involved sequentially numbered, sealed, and opaque envelopes. The outcomes' assessment was blinded. Analysis of covariance was used for intergroup comparisons (P <0.05). Mean difference (MD) and 95% confidence interval (CI) were obtained. RESULTS Twenty-four patients (mean age, 8.22 ± 1.06 years; 7 males and 17 females) were included in the SBU group, and 25 patients (mean age, 8.30 ± 0.99 years; 11 males and 14 females) were included in the comparison group. After a 12-month follow-up, the overbite increased approximately 4 mm in both groups (MD, -0.11 mm; 95% CI, -1.03 to 0.80). Means of anterior dentoalveolar vertical development ranged from 2.24 mm (S group) to 2.49 mm (SBU group) and from 1.31 mm (SBU group) to 1.55 mm (S group) for the maxilla (MD, -0.24 mm; 95% CI, -0.91 to 0.44) and mandible (MD, 0.29 mm; 95% CI, -0.39 to 0.96), respectively. The maxillary intermolar distance decreased in the SBU group and increased in the S group (MD, -0.48 mm; 95% CI, -0.92 to -0.03). The mandibular intermolar distance increased in the SBU group and decreased in the comparison group (MD, 0.26 mm; 95% CI, 0.004-0.52). Plaque accumulation around the spurs was observed in some patients. CONCLUSIONS Both protocols demonstrated similar improvements in the AOB with similar effects on the dental arches. The SBU group showed a slight decrease in the maxillary intermolar distance and a slight increase in the mandibular intermolar distance, whereas opposite changes were observed for the S group. REGISTRATION This trial was registered at Clinicaltrials.gov (Identifier NCT03702881). PROTOCOL The study protocol was not published. FUNDING This work was supported by the São Paulo Research Foundation (FAPESP) grants nos. 2017/06440-3, 2018/05238-9, and 2018/24003-2; and financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior-Brasil (CAPES), Finance Code 001.
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Affiliation(s)
| | | | - Lorena Vilanova
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Felicia Miranda
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Camila Massaro
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
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Tetay-Salgado S, Arriola-Guillén LE, Ruíz-Mora GA, Aliaga-Del Castillo A, Rodríguez-Cárdenas YA. Prevalence of impacted teeth and supernumerary teeth by radiographic evaluation in three Latin American countries: A cross-sectional study. J Clin Exp Dent 2021; 13:e363-e368. [PMID: 33841735 PMCID: PMC8020316 DOI: 10.4317/jced.57757] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2020] [Accepted: 11/02/2020] [Indexed: 11/05/2022] Open
Abstract
Background Supernumerary teeth are those that exceed the usual dental formula. There are different classifications depending on their anatomical location, shape and number. The objective of this study was to determine the prevalence of impacted and supernumerary teeth in a sample of panoramic radiographs from three Latin American countries. Material and Methods A retrospective and cross-sectional study with a quantitative approach, in which the radiographic observation and analysis of 2000 panoramic radiographs, provided by different radiological centers in Peru, Colombia and Bolivia were performed. An examiner, specialized in Stomatology and Oral Surgery, carried out the radiographic analysis to detect the presence of impacted teeth and supernumeraries teeth. All the images were evaluated in a dark room in digital format. The SPSS version 23 package was used for statistical analysis. The Chi-square test was used to determine the association of age, sex, and nationality with the presence of impacted or supernumerary teeth. The level of significance was p< 0.05. Results The prevalence of impacted teeth was 1.7%, with the upper left canine being the most frequent (58.85%). The prevalence of supernumeraries was 3.15% (76 cases), the most frequent being the mesiodens with 1.7% (34), and Peru showing the highest prevalence of mesiodens. No association was found regarding sex. Conclusions The prevalence of impacted teeth evaluated in three recognized radiologic centers from three Latin American countries was low, with the upper left canine being the most frequently impacted tooth. Likewise, the prevalence for supernumerary teeth was also low, with mesiodens having the highest prevalence. Key words:Supernumerary tooth, impacted tooth, panoramic radiograph.
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Affiliation(s)
- Sindy Tetay-Salgado
- Lecture student o the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Luis-Ernesto Arriola-Guillén
- Ph.D. and Associate Professor of the Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Gustavo-Armando Ruíz-Mora
- Ph.D. and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | | | - Yalil-Augusto Rodríguez-Cárdenas
- Ph.D. and Associate Professor of the Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
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Tofiño-Medina JH, Arriola-Guillén LE, Rodríguez-Cárdenas YA, Aliaga-Del Castillo A, Ruíz-Mora GA, Guerrero ME. Frequency of accessory mental foramen and anatomical variability of mental nerve anterior loop in a Peruvian population: A retrospective cone-beam computed tomography study. J Oral Res 2021. [DOI: 10.17126/joralres.2020.037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Objective: To evaluate the frequency of accessory mental foramen (AMF) and anatomical variants of the mental nerve anterior loop using cone-beam computed tomography (CBCT) in a Peruvian population. Material and methods: This retrospective cross-sectional study evaluated 80 hemi-mandibles from 40 subjects using CBCT. The sample included 38 females and 42 males, with an average age of 25±4.45 years. A 3D multi-planar reconstruction was performed to identify the location and presence of accessory mental foramina, their morphological characteristics (oval or circular), their position with respect to the mental foramen (MF), anterior loop (AL) path and other anatomical landmarks including lengths and angles. Statistical analyses included chi square and t-tests. The significance level was p<0.05. Results: The frequency of AMF was 17% and the average distance AL-MF was 4.76±1.97mm. The measurements of the anterior border of AL and MF to the inferior mandibular border showed significant differences according to the sex (p<0.001 and p=0.009, respectively). Conclusion: The AMF prevalence was approximately 17%. There is no association between the AMF position and its morphology, sex or side evaluated. The distances from the anterior border of the AL and from the inferior border of the MF to the inferior mandibular border were greater in males. These findings should be considered when planning implant or mini-implant placement in this region.
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Menezes CCD, Barros SE, Tonello DL, Aliaga-Del Castillo A, Garib D, Bellini-Pereira SA, Janson G. Influence of the growth pattern on cortical bone thickness and mini-implant stability. Dental Press J Orthod 2021; 25:33-42. [PMID: 33503123 PMCID: PMC7869807 DOI: 10.1590/2177-6709.25.6.033-042.oar] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Accepted: 11/01/2020] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Controversial reports suggest a relationship between growth pattern and cortical alveolar bone thickness, and its effect in the use of mini-implants. OBJECTIVE The main purpose of this study was to assess the influence of the growth pattern on the cortical alveolar bone thickness and on the stability and success rate of mini-implants. METHODS Fifty-six mini-implants were inserted in the buccal region of the maxilla of 30 patients. These patients were allocated into two groups, based on their growth pattern (horizontal group [HG] and vertical group [VG]). Cortical thickness was measured using Cone Beam Computed Tomography. Stability of mini-implants, soft tissue in the insertion site, sensitivity during loading and plaque around the mini-implants were evaluated once a month. Intergroup comparisons were performed using t tests, Mann-Whitney tests, and Fisher exact tests. Correlations were evaluated with Pearson's correlation coefficient. RESULTS The cortical bone thickness was significantly greater in the HG at the maxillary labial anterior region and at the mandibular buccal posterior and labial anterior regions. There was a significant negative correlation between Frankfort-mandibular plane angle (FMA) and the labial cortical thickness of the maxilla, and with the labial and lingual cortical bone thicknesses of the mandible. No significant intergroup difference was found for mini-implant mobility and success rate. No associated factor influenced stability of the mini-implants. CONCLUSIONS Growth pattern affects the alveolar bone cortical thickness in specific areas of the maxilla and mandible, with horizontal patients presenting greater cortical bone thickness. However, this fact may have no influence on the stability and success rate of mini-implants in the maxillary buccal posterior region.
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Affiliation(s)
- Carolina Carmo de Menezes
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ortodontia (Bauru/SP, Brazil)
| | - Sérgio Estelita Barros
- Universidade Federal do Rio Grande do Sul, Faculdade de Odontologia, Departamento de Ortodontia (Porto Alegre/RS, Brazil)
| | - Diego Luiz Tonello
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ortodontia (Bauru/SP, Brazil)
| | - Aron Aliaga-Del Castillo
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ortodontia (Bauru/SP, Brazil)
| | - Daniela Garib
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ortodontia (Bauru/SP, Brazil)
| | | | - Guilherme Janson
- Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Ortodontia (Bauru/SP, Brazil)
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Ruíz-Mora GA, Arriola-Guillén LE, Rodríguez-Cárdenas YA, Aliaga-Del Castillo A, Boessio-Vizzotto M, Dias-Da Silveira HL. Changes in alveolar bone morphology after traction of buccally vs palatally unilateral maxillary impacted canines: A cone-beam computed tomography study. Am J Orthod Dentofacial Orthop 2021; 159:258-270. [PMID: 33495062 DOI: 10.1016/j.ajodo.2020.01.022] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [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: 05/01/2019] [Revised: 12/01/2019] [Accepted: 01/01/2020] [Indexed: 12/24/2022]
Abstract
INTRODUCTION The objective of this study was to evaluate the 3-dimensional changes in alveolar bone morphology after traction of buccally vs palatally unilateral maxillary impacted canines (MIC). METHODS Following a split-mouth model, 27 cone-beam computed tomography images of unilaterally MIC (14 palatally and 13 buccally) and 27 contralateral unimpacted controls were obtained before and after traction using nickel-titanium closed-coil springs and a rigid anchorage appliance. Alveolar bone height and width were measured in the axial, coronal, and sagittal slides by 3 calibrated orthodontists, taking into account the impaction characteristics. A t test was used to compare the 2 groups, and a paired t test was applied for intragroup comparisons (both sides). A multiple linear regression model was used to evaluate the influence of the predictor variables on alveolar bone dimensional changes. RESULTS The alveolar height showed a significantly greater decrease in palatally MIC (2.09 to 2.79 mm) than buccally MIC (0.28 to 0.57 mm) (P <0.05) for all surfaces. However, the alveolar width increased similarly in both groups up to 1.36 mm. In general, the affected side had a more significant height loss and greater increases in alveolar width than the nonaffected side. Regression analysis indicated that buccally MIC and age decreased alveolar changes, whereas female sex increased alveolar changes (P <0.05). CONCLUSIONS MIC traction with nickel-titanium closed-coil springs and heavy anchorage induces significant 3-dimensional changes in alveolar bone characterized by alveolar bone height decreases and cervical alveolar bone width increases. The height decrease is greater in palatally than in buccally MIC.
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Affiliation(s)
- Gustavo Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá Distrito Capital, Colombia, Dental School, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics, and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | | | | | - Mariana Boessio-Vizzotto
- Division of Oral Radiology, Faculty of Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
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Ruíz-Mora GA, Arriola-Guillén LE, Rodríguez-Cárdenas YA, Aliaga-Del Castillo A, Dias-Da Silveira HL. A Conservative Approach to Traction of Impacted Maxillary Canines in Adults with Severe Incisor Root Resorption. J Clin Orthod 2020; 54:746-759. [PMID: 33481763] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Gustavo Armando Ruíz-Mora
- Division of Orthodontics, Faculty of Dentistry, Universidad Nacional de Colombia, Bogotá, Colombia. Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Yalil Augusto Rodríguez-Cárdenas
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Peru
| | - Aron Aliaga-Del Castillo
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Alameda Doutor Octávio Pinheiro Brisolla, 9-75, Bauru, São Paulo 17012-901, Brazil.
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Vilanova L, Henriques JFC, Patel MP, Da Costa Grec RH, Aliaga-Del Castillo A. The Miniscrew-Anchored Cantilever: A Simple Molar Distalizer. J Clin Orthod 2020; 54:773-774. [PMID: 33481766] [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] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- Lorena Vilanova
- Department of Orthodontics, Bauru Dental School University of São Paulo Alameda Octávio Pinheiro Brisolla 9-75, Bauru São Paulo 17012-901, Brazil.
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Aliaga-Del Castillo A, Vilanova L, Miranda F, Arriola-Guillén LE, Garib D, Janson G. Dentoskeletal changes in open bite treatment using spurs and posterior build-ups: A randomized clinical trial. Am J Orthod Dentofacial Orthop 2020; 159:10-20. [PMID: 33221096 DOI: 10.1016/j.ajodo.2020.06.031] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2020] [Revised: 05/01/2020] [Accepted: 06/01/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION This single-center 2-arm parallel randomized clinical trial aimed to compare the dentoskeletal effects of bonded spurs combined with posterior build-ups vs conventional bonded spurs in the treatment of anterior open bite malocclusion in the mixed dentition. METHODS Patients aged from 7 to 11 years with anterior open bite, recruited at a university orthodontic clinic, were randomly allocated into 2 groups. The experimental group consisted of patients treated with bonded spurs combined with posterior build-ups. The comparison group comprised patients treated with conventional bonded spurs. Lateral headfilms were obtained at pretreatment and after 12 months of treatment. The primary outcome was the change in the overbite. Randomization was performed using the Web site www.randomization.com. Sequentially numbered opaque and sealed envelopes were used for allocation concealment. Blinding was applicable for outcome assessment only. Intergroup comparisons were performed using t or Mann-Whitney U tests (P <0.05). Mean difference (MD) and 95% confidence interval (CI) were obtained. RESULTS The experimental group included 24 patients (17 female, 7 male; mean age, 8.22 ± 1.06 years) and the comparison group comprised 25 patients (14 female, 11 male; mean age, 8.30 ± 0.99 years). Baseline demographic and cephalometric characteristics were similar between groups. After 12 months, all patients showed improvements. Both groups showed similar improvements of the overbite (MD, 0.00 mm; 95% CI, -0.92 to 0.91), similar slight decreases of the gonial (MD, 0.02°; 95% CI, -1.11 to 1.15) and mandibular plane (MD, 0.15°; 95% CI, -0.64 to 0.93) angles, and similar mandibular molar extrusion (MD, 0.14 mm; 95% CI, -0.27 to 0.56). The experimental group showed significantly smaller extrusion of the maxillary first molar than the comparison group (MD, -0.70 mm; 95% CI, -0.92 to -0.49). The other dentoskeletal variables showed similar changes without statistically significant intergroup differences. No serious harm was observed other than plaque accumulation around the spurs. CONCLUSIONS Similar overbite increases and dentoskeletal changes were observed in both groups after 12 months of treatment. Although the experimental group showed significantly smaller extrusion of the maxillary molars, no greater counterclockwise rotation of the mandible than the comparison group was observed. REGISTRATION This trial was registered at Clinicaltrials.gov (Identifier NCT03702881). PROTOCOL The protocol was not published. FUNDING This trial was financed in part by the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brasil (CAPES), Finance Code 001; and by grants: no. 2017/06440-3, no. 2018/05238-9 and no. 2018/24003-2, São Paulo Research Foundation (FAPESP).
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Affiliation(s)
| | - Lorena Vilanova
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Felicia Miranda
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
| | - Luis Ernesto Arriola-Guillén
- Division of Orthodontics and Division of Oral and Maxillofacial Radiology, School of Dentistry, Universidad Científica del Sur, Lima, Perú
| | - Daniela Garib
- Department of Orthodontics, Bauru Dental School, and Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil
| | - Guilherme Janson
- Department of Orthodontics, Bauru Dental School, University of São Paulo, Bauru, Brazil
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Bianchi J, Paniagua B, De Oliveira Ruellas AC, Fillion-Robin JC, Prietro JC, Gonçalves JR, Hoctor J, Yatabe M, Styner M, Li T, Gurgel ML, Chaves CM, Massaro C, Garib DG, Vilanova L, Castanha Henriques JF, Aliaga-Del Castillo A, Janson G, Iwasaki LR, Nickel JC, Evangelista K, Cevidanes L. 3D Slicer Craniomaxillofacial Modules Support Patient-Specific Decision-Making for Personalized Healthcare in Dental Research. Multimodal Learn Clin Decis Support Clin Image Based Proc (2020) 2020; 12445:44-53. [PMID: 33415323 DOI: 10.1007/978-3-030-60946-7_5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
The biggest challenge to improve the diagnosis and therapies of Craniomaxillofacial conditions is to translate algorithms and software developments towards the creation of holistic patient models. A complete picture of the individual patient for treatment planning and personalized healthcare requires a compilation of clinician-friendly algorithms to provide minimally invasive diagnostic techniques with multimodal image integration and analysis. We describe here the implementation of the open-source Craniomaxillofacial module of the 3D Slicer software, as well as its clinical applications. This paper proposes data management approaches for multisource data extraction, registration, visualization, and quantification. These applications integrate medical images with clinical and biological data analytics, user studies, and other heterogeneous data.
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Affiliation(s)
- Jonas Bianchi
- University of Michigan, 1011 North University Ave, Ann Arbor, MI 48109, USA
| | | | | | | | - Juan C Prietro
- University of North Carolina, Chapel Hill, NC 27599, USA
| | | | | | - Marília Yatabe
- University of Michigan, 1011 North University Ave, Ann Arbor, MI 48109, USA
| | - Martin Styner
- University of North Carolina, Chapel Hill, NC 27599, USA
| | - TengFei Li
- University of North Carolina, Chapel Hill, NC 27599, USA
| | | | | | | | | | | | | | | | | | | | | | | | - Lucia Cevidanes
- University of Michigan, 1011 North University Ave, Ann Arbor, MI 48109, USA
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