Comparison of plastic and elastic deformation between elastomeric modules of three commercial brands in neutral medium: in vitro study

Abstract

Foundations: The elastics for medical-dental use that have been placed in the mouth are subjected to different substances present in food and beverages, such as lactic acid, citric acid, heptane, alcohol/water, erythrosine, which determine slight changes in them, so they must be replaced according to the needs required by the treatment and these will be indicated by the professional specialist. Objective: Comparison of plastic and elastic deformation between elastomeric modules of three commercial brands in neutral medium: in vitro study materials. Methods: It was conducted with a quantitative approach, longitudinal temporality with projective level and quasi-experimental design; In addition, the study population was considered by the most representative commercial factors in the region: American Orthodontics, Orthometric and Dentaurum in a neutral artificial saliva medium. Results: The deformation of the external and internal diameter of the elastomeric modules of the American Orthodontics trademark demonstrated greater plastic and elastic deformation of hasta by 32.67% ± 5.54 being the highest percentage of deformation obtained. On the other hand, the thickness of the Dentaurum elastomeric modules demonstrated a plastic and elastic deformation of up to 27.82% ± 7.51 being the highest percentage of deformation obtained. Conclusions: The greater deformation of the external and internal diameter and thickness is evident and occurs at intervals of 7 days of control, in addition, it is recommended to follow the recommendations of the factory so that the results are optimal in each event or moment of mechanics in orthodontics.