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http://hdl.handle.net/1843/50363| Type: | Artigo de Periódico |
| Title: | Comparison of torque expression in esthetic brackets |
| Authors: | Karine Martelli Karina Maria Salvatore de Freitas Patrícia de Oliveira Negreiros Rodrigo Hermont Cançado Fabricio Pinelli Valarelli Marcos Roberto de Freitas Guilherme Janson |
| Abstract: | Background: The objective of this work is to test the null hypothesis that there is no difference in the torque expres sion among different esthetic brackets. Material and Methods: Five ceramic self-ligating brackets (In-Ovation C – GAC, Damon Clear–Ormco, Quic Klear-Forestadent, Click-It -TP Orthodontics, Clarity SL-3M Unitek) and 4 ceramic conventional brackets (Inspi re Ice–Ormco, InVu Ceramic-TP Orthodontics, Ceramic Roth–Morelli, Clarity Metal-Reinforced Ceramic Brac ket-3M Unitek) were selected. Metallic Damon MX self-ligating bracket (Ormco) was used as control. Third-order moments were measured at 12º, 24º and 36º using an archwire torsion device associated with a Universal Testing Machine (EMIC DL2000), with 0.019x0.025-inch stainless steel wire. Anova followed by Tukey tests were used for intergroup comparisons. Results: In all tested angulations the Damon Clear bracket presented the highest torque expression, followed by Clarity, Clarity SL and Damon Mx brackets, with the worst torque expression shown by the InVu Ceramic bracket. The InVu Ceramic demonstrated the largest while the Damon Clear brackets demonstrated the smallest slot height and clearance. Conclusions: The null hypothesis was rejected since torque expression was different among the esthetic brackets evaluated. It was also concluded that the slot height is directly related to torque expression. |
| Subject: | Orthodontic brackets Incisor Ceramics Orthodontic appliances Torque |
| language: | eng |
| metadata.dc.publisher.country: | Brasil |
| Publisher: | Universidade Federal de Minas Gerais |
| Publisher Initials: | UFMG |
| metadata.dc.publisher.department: | FAO - DEPARTAMENTO DE ODONTOLOGIA RESTAURADORA FAO - DEPARTAMENTO DE ODONTOPEDIATRIA E ORTODONTIA |
| Rights: | Acesso Aberto |
| metadata.dc.identifier.doi: | 10.4317/jced.56102 |
| URI: | http://hdl.handle.net/1843/50363 |
| Issue Date: | 2019 |
| metadata.dc.url.externa: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6797454/ |
| metadata.dc.relation.ispartof: | Journal of Clinical and Experimental Dentistry |
| Appears in Collections: | Artigo de Periódico |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Comparison of torque expression in esthetic brackets.pdf | 831.4 kB | Adobe PDF | View/Open |
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