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Han SH, Park WJ, Park JB. Comparative Efficacy of Traditional Corticotomy and Flapless Piezotomy in Facilitating Orthodontic Tooth Movement: A Systematic Review and Meta-Analysis. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:1804. [PMID: 37893522 PMCID: PMC10608606 DOI: 10.3390/medicina59101804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2023] [Revised: 09/30/2023] [Accepted: 10/08/2023] [Indexed: 10/29/2023]
Abstract
Background and Objectives: This study aimed to perform a meta-analysis comparing the effects of corticotomy and flapless piezocision on accelerated tooth movement. Materials and Methods: A comprehensive search using a combination of controlled vocabulary (MeSH) and free-text terms was undertaken by two reviewers to identify published systematic reviews. Three major electronic databases (Medline via PubMed, Cochrane Database, and Embase) were searched up to 2 June 2023. Results: The results of the meta-analysis showed that the pooled standardized mean difference values of accumulative movement distances for flapless piezocision were 1.43 (95% CI, 0.38 to 2.48; p < 0.01), 1.09 (95% CI, -0.08 to 2.26; p = 0.07), and 0.73 (95% CI, -0.58 to 4.02; p = 0.14). The results of the meta-analysis demonstrated that the pooled SMD values of accumulative movement distances for the corticotomy were 2.76 (95% CI, 0.18 to 5.34; p = 0.04), 1.43 (95% CI, -1.10 to 3.96; p = 0.27), and 4.78 (95% CI, -4.54 to 14.10; p = 0.32). Although the test for overall effectiveness was significant for piezocision and corticotomy, there were no significant differences between piezocision and corticotomy. Conclusions: The study determined that both conventional corticotomy and flapless piezosurgery are effective as adjuncts to orthodontic treatment. Moreover, no significant difference was observed in the short-term effectiveness of canine retraction acceleration between conventional corticotomy and flapless piezocision. While piezocision may be a favorable option for orthodontic treatment, corticotomy can be considered in cases requiring additional procedures such as bone grafting.
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Affiliation(s)
- Sung-Hoon Han
- Department of Orthodontics, Seoul Saint Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea;
| | - Won-Jong Park
- Department of Oral and Maxillofacial Surgery, Seoul St. Mary’s Hospital, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea;
| | - Jun-Beom Park
- Department of Periodontics, College of Medicine, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Dental Implantology, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul 06591, Republic of Korea
- Department of Medicine, Graduate School, The Catholic University of Korea, Seoul 06591, Republic of Korea
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Guarnieri R, Grenga C, Altieri F, Rocchetti F, Barbato E, Cassetta M. Can computer-guided surgery help orthodontics in miniscrew insertion and corticotomies? A narrative review. FRONTIERS IN ORAL HEALTH 2023; 4:1196813. [PMID: 37323650 PMCID: PMC10264618 DOI: 10.3389/froh.2023.1196813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 05/08/2023] [Indexed: 06/17/2023] Open
Abstract
Orthodontics has considerably increased the use of technology combined with surgery as a tool to improve dental movements in terms of predictability, acceleration of movement, and fewer side effects. To achieve these goals miniscrews and corticotomy were introduced. The digital workflow permits an increase in the accuracy of surgical and orthodontic setups. The tool that transfers the information is the CAD/CAM (Computer-Aided Design/ Computer-Aided Manufacturing) template. The aim of this review is to illustrate the use of computer-guided surgery in orthodontics regarding miniscrews and piezocision. The search strategy was a combination of Medical Subject Headings (Mesh) and free text words for PubMed. A total of 27 articles were included in this review: 16 concerned miniscrews and 11 concerned corticotomy. The current need for faster treatments, the improved systems of anchorage, and the evolution of imaging technologies require operators to be knowledgeable of the digital workflow. CAD/CAM templates allow greater precision and predictability of miniscrew insertion even if in the hands of less experienced clinicians and permit a better orientation and depth of the cortical incision. In conclusion, digital planning makes surgery faster and easier and allows for the identification and correction of any potential problem before the procedure.
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Battista MD, Kernitsky J, Exarchos E, Ohira T, Dibart S. Quantification and comparison of the regional acceleratory phenomenon in bone following piezosurgery or bur osteotomy: A pilot study in rats. Clin Exp Dent Res 2023; 9:66-74. [PMID: 36369743 PMCID: PMC9932235 DOI: 10.1002/cre2.689] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2022] [Revised: 10/25/2022] [Accepted: 10/27/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND/OBJECTIVE The Regional Acceleratory Phenomenon (RAP) can be induced surgically via decortication (selective cortical penetrations) of bone to accelerate orthodontic tooth movement. Few studies have compared the impact and efficiency of different decortication methods to induce the RAP. The aim of this study was to determine if there is a significant difference in the intensity of the RAP induced by a surgical defect created either using a piezoelectric knife or a rotary bur. METHODS Twenty-two Sprague-Dawley rats were divided into two treatment groups (each n = 8) and a control group (n = 6). The treatment groups were subjected to transcortical penetrations (TP) of the right tibia using either a piezoelectric knife (PTP) or a rotary bur (BTP). The right tibias of the control group animals had reflection of tissues (SHAM) and the left legs were kept for comparison (INTACT). The animals were killed at 7 and 14 days after the operation in an equally distributed manner. Microcomputed tomography images were obtained and analyzed utilizing artificial intelligence for bone cortical porosity (Ct.Po) locally and regionally. RESULTS/CONCLUSION Regionally, TP using a PTP induced significantly (p < .05, Kruskal-Wallis test) more Ct.Po than BTP or INTACT for both the 7- and 14-day time points. PTP was not found to induce significantly more Ct.Po than SHAM at any time point. However, PTP induced significantly more Ct.Po than the INTACT group for each time point, while SHAM did not. The local analysis did not reveal any relevant significant differences between groups.
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Affiliation(s)
- Massimo Di Battista
- Department of Periodontology and Oral Biology, Henry M. Goldman School of Dental MedicineBoston UniversityBostonMassachusettsUSA
| | - Jeremy Kernitsky
- Department of Periodontology and Oral Biology, Henry M. Goldman School of Dental MedicineBoston UniversityBostonMassachusettsUSA
| | - Elias Exarchos
- Department of Periodontology and Oral Biology, Henry M. Goldman School of Dental MedicineBoston UniversityBostonMassachusettsUSA
| | - Taisuke Ohira
- Department of Periodontology and Oral Biology, Henry M. Goldman School of Dental MedicineBoston UniversityBostonMassachusettsUSA
| | - Serge Dibart
- Department of Periodontology and Oral Biology, Henry M. Goldman School of Dental MedicineBoston UniversityBostonMassachusettsUSA
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Gasparro R, Bucci R, De Rosa F, Sammartino G, Bucci P, D’Antò V, Marenzi G. Effectiveness of surgical procedures in the acceleration of orthodontic tooth movement: Findings from systematic reviews and meta‐analyses. JAPANESE DENTAL SCIENCE REVIEW 2022; 58:137-154. [PMID: 35469172 PMCID: PMC9034096 DOI: 10.1016/j.jdsr.2022.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 02/14/2022] [Accepted: 03/21/2022] [Indexed: 01/03/2023] Open
Abstract
The current overview aimed to summarise the findings provided by systematic reviews (SRs) on the effect of surgical procedures in the acceleration of tooth movement and to assess the methodological quality of the included SRs. Three electronic databases have been explored. SRs addressing the effects of surgical procedures on the acceleration of tooth movement were included. The methodological quality of the included SRs was assessed using the updated version of “A Measurement Tool to Assess Systematic Review” (AMSTAR‐2). Twenty-eight (28) SRs were included. The methodological quality of the included reviews ranged between critically low (6 studies) and high (12 studies). The most common critical weakness in the included reviews was the absence of clearly a‐prior established review methods and any significant deviations from the protocol. The most studied surgical procedure was corticotomy, followed by micro-osteoperforation, piezocision and periodontally accelerated osteogenic orthodontics. The majority of the included SRs supported short-term favourable effects of corticotomy on treatment time and tooth movement rate, in the short-term. However, the authors of the included SRs reported that results were based on weak quality evidence. Conflicting results arise from the existent SRs with regards to the effectiveness of piezocision and micro-osteoperforation. Few SRs summarised complications and side effects of surgical techniques, supporting absence of loss of tooth vitality, periodontal problems, or severe root resorption. The current overview of SRs highlighted the need of high quality SRs comparing different surgical approaches for tooth movement acceleration though network meta-analysis, in order to determine the most efficient instrument for orthodontic movement acceleration.
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Hu Y, Li H. Biological mechanism of surgery-mediated acceleration of orthodontic tooth movement: A narrative review. J Int Med Res 2022; 50:3000605221123904. [PMID: 36124927 PMCID: PMC9511313 DOI: 10.1177/03000605221123904] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Surgery-mediated acceleration of orthodontic tooth movement (SAOTM) has been proven effective for decades. Research has confirmed that surgical approaches play an important role in adult patients with a short orthodontic treatment time. The mechanism of SAOTM involves short-term acceleration of localized hard and soft tissue remodeling, known as the regional acceleratory phenomenon. However, no relevant review on the biological mechanism of SAOTM has been performed to date. The proposed biological mechanism of acceleration of OTM involves the participation of various cells, cytokines, and signaling pathways. We herein review the relevant literature and summarize the biological mechanism of SAOTM to provide new insights for further research on acceleration of OTM.
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Affiliation(s)
- Yun Hu
- Department of Orthodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China
| | - Hegang Li
- Department of Orthodontics, Stomatological Hospital, Southern Medical University, Guangzhou, China
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Erdenebat T, Lee DJ, Kim SJ, Choi YJ, Kim EJ, Choi EH, Liu J, Hwang CJ, Jung HS, Cha JY. Effect of the Number of Micro-Osteoperforations on the Rate of Tooth Movement and Periodontal Response in Mice. Front Physiol 2022; 13:837094. [PMID: 35309083 PMCID: PMC8928525 DOI: 10.3389/fphys.2022.837094] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Accepted: 02/08/2022] [Indexed: 11/13/2022] Open
Abstract
Accelerated tooth movement can be achieved using micro-osteoperforations (MOPs) to stimulate regeneration of the alveolar bone during minimally invasive surgical trauma. However, there is currently no standardized protocol and limited reports regarding the side effects of MOPs based on biological evidence. This study sought to evaluate the biological effects of the number of MOPs on orthodontic tooth movement (OTM) and the potential risk for root resorption. Male CD1 mice were divided into 4 groups based on the number of MOPs, as follows: Sham; 0MOP+OTM; 2MOP+OTM; and 4MOP+OTM groups. Tooth movement distance and the number of osteoclasts were higher whereas bone volume and trabecular number were lower in the 4MOP+OTM group compared to those of the 0MOP+OTM group. Immunofluorescent assay analysis indicated that the 4MOP+OTM group was positively associated with rapid cementum regeneration and periodontal ligament tissue formation. Our findings revealed that the MOP procedure affected tooth movement and did not significantly contribute to root resorption, whereas it may promote constitutive activation of cementogenesis.
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Affiliation(s)
- Tselmuun Erdenebat
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, South Korea
| | - Dong-Joon Lee
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Taste Research Center, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Su-Jung Kim
- Department of Orthodontics, Kyung Hee University School of Dentistry, Seoul, South Korea
| | - Yoon Jeong Choi
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, South Korea
| | - Eun-Jung Kim
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Taste Research Center, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
| | - Eun-Hack Choi
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, South Korea
| | - Jing Liu
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, South Korea
| | - Chung-Ju Hwang
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, South Korea
| | - Han-Sung Jung
- Division in Anatomy and Developmental Biology, Department of Oral Biology, Taste Research Center, BK21 FOUR Project, Yonsei University College of Dentistry, Seoul, South Korea
- *Correspondence: Han-Sung Jung,
| | - Jung-Yul Cha
- Department of Orthodontics, The Institute of Craniofacial Deformity, Yonsei University College of Dentistry, Seoul, South Korea
- Jung-Yul Cha,
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Zhu X, Yuan H, Ningjuan O, Trotman CA, Van Dyke TE, Chen JJ, Shen G. 6-Shogaol promotes bone resorption and accelerates orthodontic tooth movement through the JNK-NFATc1 signaling axis. J Bone Miner Metab 2021; 39:962-973. [PMID: 34191125 PMCID: PMC8595588 DOI: 10.1007/s00774-021-01245-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 06/11/2021] [Indexed: 10/21/2022]
Abstract
INTRODUCTION Corticotomy is widely used in clinical practice to accelerate tooth movement and shorten the duration of orthodontic treatment. It is effective, but an invasive surgery is needed to induce alveolar bone osteopenia that enable rapid tooth movement. In this study, we discovered the potential of 6-shogaol as a more patient-friendly non-invasive alternative to induce transient osteopenia and accelerate tooth movement. MATERIALS AND METHODS The effects of 6-shogaol on the bone marrow macrophages (BMM) proliferation and osteoclast differentiation, and bone resorption were determined in vitro. Sprague-Dawley rats were distributed into three groups: CON, IPinj or Localinj and euthanized at day 28. Micro-CT, histology, immunohistological, and TUNEL analysis were performed to evaluate the tooth movement acceleration effect of 6-shogaol. RESULTS In vitro, 6-shogaol promotes osteoclast differentiation and functional demineralization of alveolar bone. RANKL-induced mRNA expression of osteoclastic-specific genes was significantly higher in the presence of 6-shogaol. A dose-dependent increase in the area of TRAP-positive cells was observed with 6-shogaol treatment. F-actin ring formation and increased bone resorption confirmed that osteoclasts treated with 6-shogaol were mature and functional. 6-shogaol stimulated JNK activation and NFATc1 expression during osteoclast differentiation. In vivo, 6-shogaol promotes alveolar bone transient osteopenia and accelerates orthodontic tooth movement. Alveolar bone mass was reduced, more osteoclasts were observed in bone resorption lacunae on the compression side, and the expression of RANKL and sclerostin were higher than the control group. In conclusion, our results suggest that 6-shogoal accelerates tooth movement by inducing osteopenia by a mechanism similar to surgically induced bone injury.
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Affiliation(s)
- Xiaofang Zhu
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA
| | - Hao Yuan
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ouyang Ningjuan
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Carroll Ann Trotman
- Department of Orthodontics, Tufts University School of Dental Medicine, Boston, MA, USA
| | | | - Jake Jinkun Chen
- Division of Oral Biology, Tufts University School of Dental Medicine, Boston, MA, USA.
- Department of Developmental, Molecular and Chemical Biology, Tufts University School of Medicine, Boston, MA, USA.
| | - Guofang Shen
- Department of Oral and Cranio-Maxillofacial Surgery, Shanghai Key Laboratory of Stomatology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Mehta S, Chen PJ, Kalajzic Z, Ahmida A, Yadav S. Acceleration of orthodontic tooth movement and root resorption with near and distant surgical insults: An in-vivo study on a rat model. Int Orthod 2021; 19:591-600. [PMID: 34716100 DOI: 10.1016/j.ortho.2021.10.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2021] [Revised: 10/03/2021] [Accepted: 10/04/2021] [Indexed: 12/20/2022]
Abstract
OBJECTIVE The purpose of this study was to determine the effects of alveolar decortications (AD) closer and farther from the tooth on Orthodontic tooth movement (OTM) and root resorption. MATERIALS AND METHODS Twenty-four Wistar rats (age 17 weeks) were used in the study. Three groups were formed by randomly dividing the rats into: 1) Control Group (N=8): OTM (14 days) without any surgical insult; 2) Near Group (N=8) OTM (14 days)+Alveolar Decortications (AD) adjacent to roots of the maxillary first molar; 3) Far Group (N=8) OTM (14 days)+AD 5mm away from the roots of the maxillary first molar. OTM was performed using a closed coil Nickel-Titanium (NiTi) spring to apply a mesial force on maxillary first molars of 8-10 grams. AD was performed with high-speed quarter round bur on the palatal aspect of alveolar bone. The rats were euthanized after 2 weeks of OTM and microfocus computed tomography and histological analysis were performed. RESULTS Near-AD and Far-AD groups exhibited significantly increased OTM and reduction of Bone volume fraction compared to control. The root volume was significantly decreased (increased root resorption) in the Near-AD group. Histological analysis showed no statistically significant difference between the groups. CONCLUSIONS Alveolar decortications lead to a significant increase in the rate of OTM. Increased root resorption was observed when the alveolar decortications were performed close to the maxillary molar.
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Affiliation(s)
- Shivam Mehta
- Marquette University School of Dentistry, Department of Developmental Sciences/Orthodontics, WI, Milwaukee, USA.
| | - Po-Jung Chen
- University of Connecticut Health, Division of Orthodontics, Farmington, CT, USA
| | - Zana Kalajzic
- Division of Oral Medicine, University of Connecticut, Department of Oral Health and Diagnostic Sciences, Farmington, CT, USA
| | - Ahmad Ahmida
- University of Connecticut Health, Division of Orthodontics, Farmington, CT, USA
| | - Sumit Yadav
- University of Connecticut Health, Division of Orthodontics, Farmington, CT, USA
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Kim SG, Kook YA, Lim HJ, Park P, Lee W, Park JH, Bayome M, Kim Y. Comparison of the effects of horizontal and vertical micro-osteoperforations on the biological response and tooth movement in rabbits. Korean J Orthod 2021; 51:304-312. [PMID: 34556584 PMCID: PMC8461390 DOI: 10.4041/kjod.2021.51.5.304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 12/30/2020] [Accepted: 01/27/2021] [Indexed: 11/10/2022] Open
Abstract
Objective This study aimed to compare the amount of tooth movement after multiple horizontal (MH) and single vertical (SV) micro-osteoperforations (MOPs), and evaluate the histological changes after orthodontic force application in rabbits. Methods The mandibles of 24 white rabbits were subjected to two experimental interventions: MH and SV MOPs. Defect volume of the MOPs between the two groups was kept similar. A force of 100 cN was applied via a coil spring between the incisor teeth and the first premolars. The amount of tooth movement was measured. Differences in the amount of tooth movement and bone variables at three time points and between the two groups were evaluated using repeated-measures analysis of variance. Results The first premolar showed a mesial movement of 1.47 mm in the MH group and 1.84 mm in the SV group, which was significantly different at Week 3 (p < 0.05). No significant difference was observed in bone volume and bone fraction between the groups. Tartrate-resistant acidic phosphatase-positive cell count was also significantly greater at Week 3 than at Week 1 in both the SV and MH groups. Conclusions The amount of tooth movement showed significant differences between Weeks 1 and 3 in the SV and MH MOP groups, but showed no differences between the two groups. Therefore, SV MOP could be considered an effective tool for enhancing tooth movement, especially for molar distalization, uprighting, and protraction to an edentulous area.
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Affiliation(s)
- Seok-Gon Kim
- Department of Orthodontics, Graduate School of Clinical Dental Science, The Catholic University of Korea, Seoul, Korea
| | - Yoon-Ah Kook
- Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | - Hee Jin Lim
- Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
| | | | - Won Lee
- Division of Oral and Maxillofacial Surgery, Department of Dentistry, Uijeongbu St. Mary's Hospital, The Catholic University of Korea, Uijeongbu, Korea
| | - Jae Hyun Park
- Postgraduate Orthodontic Program, Arizona School of Dentistry & Oral Health, A.T. Still University, Mesa, AZ, USA.,International Scholar, Graduate School of Dentistry, Kyung Hee University, Seoul, Korea
| | - Mohamed Bayome
- Department of Preventive Dental Sciences, College of Dentistry, King Faisal University, Al-Ahsa, Kingdom of Saudi Arabia.,Department of Postgraduate Studies, Universidad Autonoma del Paraguay, Asuncion, Paraguay
| | - Yoonji Kim
- Department of Orthodontics, Seoul St. Mary's Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
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Wu YF, Guo HM. The effect of corticotomy on the compensatory remodeling of alveolar bone during orthodontic treatment. BMC Oral Health 2021; 21:134. [PMID: 33740958 PMCID: PMC7977253 DOI: 10.1186/s12903-021-01492-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Accepted: 03/07/2021] [Indexed: 11/15/2022] Open
Abstract
Background This study aimed to explore whether compensatory remodeling of the alveolar bone surface occurred during the buccal palatal movement of orthodontic teeth. We preliminarily explored whether corticotomy could activate or accelerate osteogenesis in the alveolar bone surface by measuring the expression of TGF-β1 (transforming growth factor-β1), which can facilitate the proliferation and differentiation of osteoblasts and regulate the maturity and formation of bone. Methods Sixty 10-week-old male Wistar rats were selected. In the orthodontic group, 20 rats were implanted with a constriction device between the maxillary first molars under general anesthesia. In the corticotomy group, 20 rats were implanted with a constriction device, and a palatal incision was made to penetrate the cortical bone. In the control group, 20 rats underwent no experimental operation except general anesthesia. After 1, 3, 5 and 7 days, the maxillary first molars and the surrounding alveolar bone were harvested, and coronal sections containing the apical mesial buccal root were prepared and observed using tetracycline fluorescence, HE staining and immunohistochemical staining for TGF-β1. Image-Pro Plus software was used to assess the immunohistochemical results, and SPSS 22.0 statistical software was used to analyze variance and perform the LSD test. Results The tetracycline fluorescence results showed that in the periosteum near the apical region, an obvious fluorescence signal was observed in the orthodontic group and the corticotomy group compared with the control group. In the orthodontic group and corticotomy group, HE staining showed that the morphology was similar to cube-shaped. The immunohistochemical results showed that TGF-β1 was significantly increased in the periosteum near the apical region in the orthodontic group and corticotomy group, and there were significant differences among the three groups. In addition, the expression of TGF-β1 in the periosteum in the orthodontic group and the corticotomy group gradually increased over time, reaching a peak on day 5 and slightly decreasing on day 7. Conclusion Osteogenesis occurred on the alveolar bone surface during the buccal palatal movement of orthodontic teeth, and corticotomy had a positive effect, and TGF-β1 was involved in this process.
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Affiliation(s)
- Yi-Fei Wu
- Department of Orthodontics, Capital Medical University, School of Stomatology, Beijing, 100050, China
| | - Hong-Ming Guo
- Department of Orthodontics, Capital Medical University, School of Stomatology, Beijing, 100050, China.
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Yamaguchi M, Fukasawa S. Is Inflammation a Friend or Foe for Orthodontic Treatment?: Inflammation in Orthodontically Induced Inflammatory Root Resorption and Accelerating Tooth Movement. Int J Mol Sci 2021; 22:2388. [PMID: 33673606 PMCID: PMC7957544 DOI: 10.3390/ijms22052388] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Revised: 02/20/2021] [Accepted: 02/22/2021] [Indexed: 02/07/2023] Open
Abstract
The aim of this paper is to provide a review on the role of inflammation in orthodontically induced inflammatory root resorption (OIIRR) and accelerating orthodontic tooth movement (AOTM) in orthodontic treatment. Orthodontic tooth movement (OTM) is stimulated by remodeling of the periodontal ligament (PDL) and alveolar bone. These remodeling activities and tooth displacement are involved in the occurrence of an inflammatory process in the periodontium, in response to orthodontic forces. Inflammatory mediators such as prostaglandins (PGs), interleukins (Ils; IL-1, -6, -17), the tumor necrosis factor (TNF)-α superfamily, and receptor activator of nuclear factor (RANK)/RANK ligand (RANKL)/osteoprotegerin (OPG) are increased in the PDL during OTM. OIIRR is one of the accidental symptoms, and inflammatory mediators have been detected in resorbed roots, PDL, and alveolar bone exposed to heavy orthodontic force. Therefore, these inflammatory mediators are involved with the occurrence of OIIRR during orthodontic tooth movement. On the contrary, regional accelerating phenomenon (RAP) occurs after fractures and surgery such as osteotomies or bone grafting, and bone healing is accelerated by increasing osteoclasts and osteoblasts. Recently, tooth movement after surgical procedures such as corticotomy, corticision, piezocision, and micro-osteoperforation might be accelerated by RAP, which increases the bone metabolism. Therefore, inflammation may be involved in accelerated OTM (AOTM). The knowledge of inflammation during orthodontic treatment could be used in preventing OIIRR and AOTM.
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Affiliation(s)
- Masaru Yamaguchi
- Ginza Orthodontic Clinic, Ginza Granvia 6F, 3-3-14 Ginza, Chuo-ku, Tokyo 104-0061, Japan;
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Biomechanical Interfaces of Corticotomies on Periodontal Tissue Remodeling during Orthodontic Tooth Movement. COATINGS 2020. [DOI: 10.3390/coatings11010001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Corticotomy is an effective approach in accelerating orthodontic tooth movement (OTM) in clinical treatment. Corticotomy causes regional acceleratory phenomenon (RAP) in the alveolar bone of surgical sites. However, the molecular mechanism of RAP after corticotomy remains unclear. Herein, we established a mouse model to study the biomechanical interfaces of corticotomy-assisted OTM and to investigate the histological responses and underlying cellular mechanism. A total of 144 male C57BL/6 mice were randomly assigned into four groups: corticotomy alone (Corti), sham operation (Sham), corticotomy with tooth movement (Corti + TM), and sham operation with tooth movement (Sham + TM). Nickel–titanium orthodontic springs were applied to trigger tooth movement. Mice were sacrificed on Post-Surgery Day (PSD) 3, 7, 14, 21, and 28 for radiographic, histological, immunohistochemical, and molecular biological analyses. The results reveal that corticotomy significantly promoted alveolar bone turnover and periodontal tissue remodeling. During orthodontic tooth movement, corticotomy significantly promoted osteogenic and proliferative activity, accelerated tooth movement, and eliminated root resorption by upregulating Wnt signal pathway.
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Meccariello R, Fasano S, Pierantoni R. Kisspeptins, new local modulators of male reproduction: A comparative overview. Gen Comp Endocrinol 2020; 299:113618. [PMID: 32950583 DOI: 10.1016/j.ygcen.2020.113618] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 09/04/2020] [Accepted: 09/13/2020] [Indexed: 11/29/2022]
Abstract
Spermatogenesis is a complex process that leads to the production of male gametes within the testis through the coordination of mitotic, meiotic and differentiation events, under a deep control of endocrine, paracrine and autocrine modulators along the Hypothalamus-pituitary-gonad (HPG) axis. The kisspeptin system plays a fundamental role along the HPG axis as it is the main positive modulator upstream of the hypothalamic neurons that secrete the Gonadotropin Releasing Hormone (GnRH), the decapeptide that supports pituitary gonadotropins and the production of gonadal sex steroid. Currently, kisspeptins and their receptor, KISS1R, have a recognized activity in the central control of puberty onset, sex maturation, reproduction and sex-steroid feedback mechanisms in both animal models and human. However, kisspeptin signaling has been widely reported in peripheral tissues, particularly in the testis of mammalian and non-mammalian vertebrates, with functions related to Leydig cells physiology and steroid biosynthesis, spermatogenesis progression and spermatozoa functions, but its mandatory role within the testis is still a matter of discussion. This review provides a summary of the main intratesticular effects of kisspeptin in vertebrates, via a comparative approach. Particular emphasis was devoted to data from the anuran amphibian Pelophylax esculentus, the first animal model in which the direct intratesticular activity of kisspeptin was reported.
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Affiliation(s)
- Rosaria Meccariello
- Dipartimento di Scienze Motorie e del Benessere, Università degli Studi di Napoli Parthenope, Napoli, Italy.
| | - Silvia Fasano
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania "L. Vanvitelli", Napoli, Italy
| | - Riccardo Pierantoni
- Dipartimento di Medicina Sperimentale, Università degli Studi della Campania "L. Vanvitelli", Napoli, Italy
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14
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Bhardwaj S, Kumar P, Jerome A, Ravesh S, Patil C, Singh P, Lailer PC. Serum kisspeptin: New possible biomarker for sexual behaviour and sperm concentration in buffalo bulls. Reprod Domest Anim 2020; 55:1190-1201. [PMID: 32602182 DOI: 10.1111/rda.13761] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2020] [Accepted: 06/23/2020] [Indexed: 11/26/2022]
Abstract
The study was designed to decipher the inter-relationship between peripheral hormones (kisspeptin and testosterone), sexual behaviour and seminal variables of Murrah buffalo bulls (n = 134). In this study, we recorded that 13%, 37%, 40%, 6% and 4% Murrah buffalo bulls had reaction time of <30, 31-60, 61-180, 181-300 and >300 s, respectively. Further, it was observed that 4%, 85% and 10% buffalo bulls were sexually aggressive, active and dull, respectively, during semen collection. The courtship behaviour was not found to be desirable for the bulls used for the semen collection. Mean of ejaculate volume, sperm concentration and mass motility (0-5 scale) were 3.57 ml, 977.11 million/ml, 2.7, respectively. Correlation studies revealed that the reaction time was positively correlated with courtship behaviour and body weight, and negatively correlated with sexual aggressiveness and sperm concentration. Serum kisspeptin in buffalo bulls, measured for the first time, was found to 3.8 ± 0.7 ng/ml. Serum kisspeptin and testosterone level are negatively correlated to each other and kisspeptin level influenced the sexual behaviour (reaction time, sexual aggressiveness and penile erection) of study bulls. Serum kisspeptin was higher in the buffalo bulls with higher sperm concentration indicating its role in spermatogenesis. In conclusion, for the first time basic information related to sexual behaviour of Murrah buffalo bulls in large population along with its inter-relationship with peripheral hormones (kisspeptin and testosterone) has been documented.
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Affiliation(s)
- Sonam Bhardwaj
- Animal Physiology and Reproduction Division, ICAR- Central Institute for Research on Buffaloes, Hisar, India.,Livestock Production and Management Section, ICAR- National Dairy Research Institute, Karnal, India
| | - Pradeep Kumar
- Animal Physiology and Reproduction Division, ICAR- Central Institute for Research on Buffaloes, Hisar, India
| | - Andonissamy Jerome
- Animal Physiology and Reproduction Division, ICAR- Central Institute for Research on Buffaloes, Hisar, India
| | - Suman Ravesh
- Animal Physiology and Reproduction Division, ICAR- Central Institute for Research on Buffaloes, Hisar, India
| | - Chandrashekhar Patil
- Department of Animal Breeding and Genetics, Lala Lajpat Rai University of Veterinary and Animal Sciences, Hisar, India
| | - Pawan Singh
- Livestock Production and Management Section, ICAR- National Dairy Research Institute, Karnal, India
| | - Puran Chand Lailer
- Animal Physiology and Reproduction Division, ICAR- Central Institute for Research on Buffaloes, Hisar, India
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15
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Mheissen S, Khan H, Samawi S. Is Piezocision effective in accelerating orthodontic tooth movement: A systematic review and meta-analysis. PLoS One 2020; 15:e0231492. [PMID: 32320408 PMCID: PMC7176130 DOI: 10.1371/journal.pone.0231492] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2019] [Accepted: 03/24/2020] [Indexed: 01/22/2023] Open
Abstract
Objective This meta-analysis aimed at critically assessing currently available evidence regarding the overall effectiveness of Piezocision in accelerating orthodontic tooth movement, as well as the adverse effects of this intervention in orthodontic patients. Search methods Electronic search of 6 databases and additional manual searches up to April 2019 without restrictions, also update the search was done by 20th November. Selection criteria Randomized controlled trials (RCT) and controlled clinical trials (CCT) reporting piezocision-assisted orthodontics versus conventional orthodontics were included in the review. Data collection and analysis The data are expressed by mean differences (MD), 95% confidence intervals, fixed-effect model or random-effect model in the meta-analysis in regard to statistical heterogeneity analyses (tau2, and I2). Included randomized studies were assessed for risk of bias using the new Cochrane Risk of Bias tool (ROB.2) and the non-randomized studies were assessed using (ROBINS I) tool. The studies were graded according to the GRADE approach. Results Fourteen papers for 13 unique trials were included in this systematic review and eight studies were included in the meta-analysis. The meta-analysis showed that the mean difference of the canine retraction rate in the first and second month after piezocision was 0.66 mm/month and 0.48mm/month, respectively. A total canine retraction rate in the first two months after piezocision was statistically significant (0.57 mm/month, p<0.00001), favoring the piezocision group with a high heterogeneity between studies I2 = 69%. For the total treatment time outcome measure, there was a statistically significant difference in the overall treatment time (MD 101.64 Days, 95% CI, 59.24–144.06) favoring the piezocision group. Conclusions Low quality evidence suggests that piezocision is an effective surgical procedure in accelerating the rate of canine retraction in the first two months and reducing the treatment duration. However, this effect appears to be clinically insignificant. Systematic review registration CRD42019136303.
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Affiliation(s)
- Samer Mheissen
- DDS, Syrian Board in Orthodontics, Former instructor in Orthodontic Department, Syrian Ministry of Health Private Practice, Damascus, Syrian Arab Republic
- * E-mail:
| | - Haris Khan
- BDS, FCPS, FFDRCSI, Associate Professor of orthodontics, CMH institute of dentistry Lahore, National University of Medical Sciences, Punjab, Pakistan
| | - Shadi Samawi
- BDS, MMedSci(Orth), MOrthRCSED, Private Practice, Argentina, Jordan
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16
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El-Sherry TM, Abdel-Ghani MA, Mahmoud GB, Ezzat AA. Kisspeptin injection improved the semen characteristics and sperm rheotaxis in Ossimi ram. Reprod Domest Anim 2020; 55:240-247. [PMID: 31880370 DOI: 10.1111/rda.13613] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2019] [Accepted: 12/08/2019] [Indexed: 11/30/2022]
Abstract
The aim of the present study was to investigate the effect of kisspeptin-10 (Kp10) injection on semen characteristics, testosterone (T) production and sperm rheotaxis using microfluidic devices in immature ram. Computer-assisted sperm analysis (CASA) with controlled flow velocity was used to explore the kinetic parameters of sperm and positive rheotaxis (PR %). PR % was defined as the number of PR sperms over the number of motile sperms. Healthy Ossimi rams were randomly divided into two groups; a saline-treated control group and Kp10-treated one (5 µg/kg body weight). Treatments were given by intramuscular injection once a week for 1 month. After 1 month, the semen was collected and evaluated weekly for 6 weeks, while the blood samples were collected every 2 weeks for the next 8 weeks. Semen properties were significantly affected by Kp10 injection (p < .01). The Kp10 increased the volume, sperm concentration and percentages of live sperm compared with those of control. Additionally, sperm trajectories and rheotaxis get improved by the injection of Kp10 with time. Furthermore, kisspeptin improved the secretion of testosterone levels throughout the period of study. In conclusion, injections of the Kp10 had a positive impact on semen characteristics as well as improved sperm rheotaxis of Ossimi rams in subtropics.
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Affiliation(s)
- Timor M El-Sherry
- Department of Theriogenology, Faculty of Veterinary Medicine, Assuit University, Assuit, Egypt
| | - Mohammed A Abdel-Ghani
- Department of Theriogenology, Faculty of Veterinary Medicine, Assuit University, Assuit, Egypt
| | - Gamal B Mahmoud
- Department of Animal Production, Faculty of Agriculture, Assiut University, Assuit, Egypt
| | - Ahmed A Ezzat
- Department of Biology, College of Science, King Khalid Unversity, Abha, Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, South Valley University, Qena, Egypt
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17
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Zorlu FY, Darici H, Turkkahraman H. Histomorphometric and Histopathologic Evaluation of the Effects of Systemic Fluoride Intake on Orthodontic Tooth Movement. Eur J Dent 2019; 13:361-369. [PMID: 31795002 PMCID: PMC6890506 DOI: 10.1055/s-0039-1700192] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Objectives
The aim of this study was to determine the effects of systemic fluoride intake on orthodontic tooth movement with histomorphometric and histopathologic methods.
Materials and Methods
Forty-eight Wistar albino rats were randomly divided into four groups of 12 rats each. Group I received fluoridated water and underwent orthodontic tooth movement. Group II received fluoridated water and did not undergo orthodontic tooth movement. Group III received nonfluoridated water and underwent orthodontic tooth movement. Group IV received nonfluoridated water and did not undergo orthodontic tooth movement. At the beginning of the experiment (T1), impressions were taken from the maxilla of the rats in groups I and III under general anesthesia, and a NiTi closed coil spring appliance was ligated between the left maxillary central incisors and maxillary first molar. The orthodontic force applied was approximately 75 g, and the duration of the experimental period was 18 days. During the experimental period, appliances were controlled daily. At the end of the experimental period (T2), the rats were sacrificed with an overdose of a ketamine/xylasine combination, and their impressions were obtained. The upper first molars were subsequently dissected for histological examination. Incisor–molar distance, number of osteoblasts, number of osteoclasts and periodontal ligament (PDL) space widths on the compression and tension sides were measured.
Statistical Analysis
All measurements were statistically analyzed with SPSS for Windows version 18.0 (SPSS Inc., Chicago, IL, USA). Repeated measures ANOVA and posthoc Tukey tests were used to compare the groups.
Results
No statistically significant difference was found with respect to the amount of tooth movement between the fluoridated and nonfluoridated groups (
p
> 0.05). Orthodontic force application increased the number of osteoblasts at the tension sides and reduced it at the compression sides (
p
< 0.001). An increased number of osteoclasts was observed in the nonfluoridated group relative to the fluoridated group (
p
< 0.01).
Conclusions
No difference was observed with respect to the amount of tooth movement between the fluoridated and nonfluoridated groups. Fluoride significantly reduced the number of osteoclasts in the experimental groups.
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Affiliation(s)
- Fatma Yalcin Zorlu
- Department of Orthodontics, School of Dentistry, University of Suleyman Demirel, Isparta, Turkey
| | - Hakan Darici
- Department of Histology & Embryology, School of Medicine, University of Suleyman Demirel, Isparta, Turkey
| | - Hakan Turkkahraman
- Department of Orthodontics, School of Dentistry, University of Suleyman Demirel, Isparta, Turkey.,Department of Orthodontics and Oral Facial Genetics, School of Dentistry, Indiana University, Indianapolis, Indiana, United States
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