Mechanical properties of orthodontic aligners: A review of the literature
1 Dentistry student, Faculty of Dentistry, University of Cuenca, Ecuador.
2 Orthodontic specialist, Faculty of Dentistry, University of Cuenca, Ecuador.
Review Article
World Journal of Advanced Research and Reviews, 2023, 18(02), 322–328
Publication history:
Received on 27 March 2023; revised on 03 May 2023; accepted on 06 May 2023
Abstract:
Background: The purpose of this study is to identify the mechanical properties of orthodontic aligners and the effect produced by thermoforming and aging in vitro.
Material and Methods: A review of the literature was carried out at the end of 2022 in different search engines (PubMed, Scielo, UNAM), using the search strategy: (aligners), (transparent) and (orthodontics) to identify articles that present information on the mechanical properties and the effect of humidity and temperature on orthodontic aligners.
Results: Of a total of 17,130 articles found in search engines, only 21 articles met the inclusion and exclusion criteria. For this systematic review, the most frequent criteria were: aligners, mechanical, and thermoplastic.
Conclusions: With the review of the literature carried out, it was concluded that aging due to the effect of water absorption and temperature does not affect the thermomechanical properties and the molecular composition as much as the thermoforming process does.
Keywords:
Aligners; Mechanical tests; Thermoformed; Thickness
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Copyright © 2023 Author(s) retain the copyright of this article. This article is published under the terms of the Creative Commons Attribution Liscense 4.0