[Performance of orthodontic aligners in the aging process: systematic review and in vitro study].

Q4 Medicine

L'' Orthodontie française Pub Date : 2021-09-01 DOI:10.1684/orthodfr.2021.57

Intissar El Idrissi, Khalil El Mabrouk, Fatima Zaoui, Hicham Benyahia

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引用次数: 0

Abstract

Introduction: The objective of this study was to evaluate, through a systematic review of the literature and an in vitro study, the alteration of the mechanical and chemical properties of aligners after aging in artificial saliva and in the oral cavity.

Materials and methods: A systematic literature review was carried out, through an electronic consultation of three databases: PubMed, EBSCO and Sciencedirect, between September 2018 and January 2020. The search was guided by the use of several specific keywords. In our in vitro study, the mechanical properties of our sample of aligners were evaluated using the 3-point bending test after a water immersion.

Results and discussion: Of the 189 articles found, only six articles met our inclusion criteria. In the light of the studies selected in this systematic review and of our in vitro study, it can be concluded that the orthodontic aligners undergo an alteration in their mechanical properties after stay in the mouth. However, the real impact of these modifications on their clinical performance remains to be demonstrated and it is difficult to make a final judgment on their chemical stability. Other controlled clinical studies, with protocols better suited to the clinical criteria studied, are necessary to objectively assess the aging phenomenon of orthodontic aligners.

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正畸矫正器在衰老过程中的作用:系统综述和体外研究。

前言:本研究的目的是通过系统的文献回顾和体外研究，评估人工唾液和口腔中老化后矫正剂的力学和化学性质的变化。材料和方法:在2018年9月至2020年1月期间，通过PubMed、EBSCO和Sciencedirect三个数据库的电子查询，进行了系统的文献综述。搜索是通过使用几个特定的关键词来引导的。在我们的体外研究中，我们的对准器样品的机械性能在水浸泡后使用三点弯曲测试进行评估。结果和讨论:在189篇文章中，只有6篇文章符合我们的纳入标准。根据本系统综述中选择的研究和我们的体外研究，可以得出结论，正畸矫正器在停留在口腔后会发生机械性能的改变。然而，这些修饰对其临床性能的真正影响仍有待证实，很难对其化学稳定性做出最终判断。为了客观地评价正畸矫正器的老化现象，有必要进行其他的对照临床研究，采用更适合临床标准的方案。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

L'' Orthodontie française Medicine-Medicine (all)

CiteScore

0.30

自引率

0.00%

发文量

期刊介绍： L’Orthodontie Française, organe officiel de communication de la Société Française d’Orthopédie Dento-Faciale, est un journal scientifique de référence depuis 1921, de diffusion internationale, indexé à Medline et référencé à l’Index Medicus et à Bibliodent. Le journal a pour vocation d’accueillir les travaux des membres de la SFODF, des conférenciers ayant communiqué lors des congrès de la Société, ou de tout travail soumis à l’approbation de son comité de rédaction, traitant de l’orthopédie dento-faciale ou de tout sujet en rapport avec cette discipline.