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KJO Korean Journal of Orthodontics

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eISSN 2005-372X
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Korean J Orthod

Published online March 28, 2022

Copyright © The Korean Association of Orthodontists.

The Effects and Stability of Miniscrew Assisted Rapid Palatal Expansion: A Systematic Review and Meta-analysis

Xinyi Huang1+, Yu Han2, ShuangyanYang1*

1. Department of orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration
2.Department of orthodontics, Hangzhou Dental Hospital.

Correspondence to:Name: Shuangyan Yang
Institution: Department of orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration. No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
Position: Associate chief physician
Tel. 86-531-88382070
E-mail: ysy1989sd@163.com

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective: The study aims to systematically analyze the effects and stability of miniscrew assisted rapid palatal expansion (MARPE), providing a reference for the clinical treatments of maxillary transverse deficiency (MTD) patients.
Methods: We searched Pubmed, Science Direct, Web of Science, Embase, Cochrane Library, CNKI and Wanfang Data for the relevant studies published before February 18,2021 and selected them according to the eligibility criteria. Criteria introduced in the Cochrane Handbook for Systematic Reviews(Version 5.1.0) were used for the quality assessment of randomized controlled trials(RCTs), and the scoring protocol of methodological index for non-randomized studies (MINORS) was used for non-randomized controlled trials(NRCTs). Statistical analysis was performed using RevMan5.3 software.
Results: All Studies included in the analysis showed relatively high success rate of expansion. The changes of both intermolar width and alveolar width after MARPE are statistically significant. MARPE exhibits a greater skeletal expansion effects than the conventional RPE. The midpalatal suture is opened in parallel after MARPE. A small amount of relapse can be observed 1 year after expansion. MARPE causes tooth inclination and the decrease of alveolar height, but they are less significant compared with the conventional RPE.
Conclusion: MARPE can be an effective treatment modality for MTD patients. It produces great transverse skeletal expansion in late adolescents. In comparison to the conventional RPE, MARPE reduces some detrimental periodontal effects and it has certain clinical advantages.

Keywords: Expansion, Tooth movement, Orthodontic mini-implant

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Korean J Orthod

Published online March 28, 2022

Copyright © The Korean Association of Orthodontists.

The Effects and Stability of Miniscrew Assisted Rapid Palatal Expansion: A Systematic Review and Meta-analysis

Xinyi Huang1+, Yu Han2, ShuangyanYang1*

1. Department of orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration
2.Department of orthodontics, Hangzhou Dental Hospital.

Correspondence to:Name: Shuangyan Yang
Institution: Department of orthodontics, School and Hospital of Stomatology, Cheeloo College of Medicine, Shandong University & Shandong Key Laboratory of Oral Tissue Regeneration & Shandong Engineering Laboratory for Dental Materials and Oral Tissue Regeneration. No.44-1 Wenhua Road West, 250012, Jinan, Shandong, China
Position: Associate chief physician
Tel. 86-531-88382070
E-mail: ysy1989sd@163.com

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objective: The study aims to systematically analyze the effects and stability of miniscrew assisted rapid palatal expansion (MARPE), providing a reference for the clinical treatments of maxillary transverse deficiency (MTD) patients.
Methods: We searched Pubmed, Science Direct, Web of Science, Embase, Cochrane Library, CNKI and Wanfang Data for the relevant studies published before February 18,2021 and selected them according to the eligibility criteria. Criteria introduced in the Cochrane Handbook for Systematic Reviews(Version 5.1.0) were used for the quality assessment of randomized controlled trials(RCTs), and the scoring protocol of methodological index for non-randomized studies (MINORS) was used for non-randomized controlled trials(NRCTs). Statistical analysis was performed using RevMan5.3 software.
Results: All Studies included in the analysis showed relatively high success rate of expansion. The changes of both intermolar width and alveolar width after MARPE are statistically significant. MARPE exhibits a greater skeletal expansion effects than the conventional RPE. The midpalatal suture is opened in parallel after MARPE. A small amount of relapse can be observed 1 year after expansion. MARPE causes tooth inclination and the decrease of alveolar height, but they are less significant compared with the conventional RPE.
Conclusion: MARPE can be an effective treatment modality for MTD patients. It produces great transverse skeletal expansion in late adolescents. In comparison to the conventional RPE, MARPE reduces some detrimental periodontal effects and it has certain clinical advantages.

Keywords: Expansion, Tooth movement, Orthodontic mini-implant