Evaluation of the force generated by gradual deflection of orthodontic wires in conventional metallic, esthetic, and self-ligating brackets
J. appl. oral sci
;
24(5): 496-502, Sept.-Oct. 2016. tab, graf
Article
Dans Anglais
| LILACS, BBO
| ID: lil-797980
ABSTRACT
ABSTRACT Objective:
The purpose of this study was to evaluate the deflection forces of Nitinol orthodontic wires placed in different types of brackets metallic, reinforced polycarbonate with metallic slots, sapphire, passive and active self-ligating, by assessing strength values variation according to gradual increase in wire diameter and deflection and comparing different combinations in the different deflections. Material andMethods:
Specimens were set in a clinical simulation model and evaluated in a Universal Testing Machine (INSTRON 3342), using the ISO 15841 protocol. Data were subjected to One-way ANOVA, followed by Tukey tests (p<0.05).Results:
Self-ligating brackets presented the most similar behavior to each other. For conventional brackets there was no consistent behavior for any of the deflections studied.Conclusions:
Self-ligating brackets presented the most consistent and predictable results while conventional brackets, as esthetic brackets, showed very different patterns of forces. Self-ligating brackets showed higher strength in all deflections when compared with the others, in 0.020-inch wires.
Texte intégral:
Disponible
Indice:
LILAS (Amériques)
Sujet Principal:
Fils orthodontiques
/
Brackets orthodontiques
/
Alliages
Type d'étude:
Études d'évaluation
/
Guide de pratique
/
Étude pronostique
langue:
Anglais
Texte intégral:
J. appl. oral sci
Thème du journal:
Dentisterie
Année:
2016
Type:
Article
Pays d'affiliation:
Brésil
Institution/Pays d'affiliation:
Universidade de São Paulo/BR
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