| Autor: |
Fernando KOIKE, Hiroshi MARUO, Rogério LACERDA-SANTOS, Matheus Melo PITHON, Orlando Motohiro TANAKA |
| Jazyk: |
English<br />Portuguese |
| Rok vydání: |
2017 |
| Předmět: |
|
| Zdroj: |
Revista de Odontologia da UNESP, Vol 46, Iss 3, Pp 125-130 (2017) |
| Druh dokumentu: |
article |
| ISSN: |
1807-2577 |
| DOI: |
10.1590/1807-2577.19716 |
| Popis: |
Abstract Introduction Few studies investigated the mechanical properties of orthodontic wires on ceramic brackets associated the ligatures. Objective This study aimed to compare the load-deflection of orthodontic wires with round section of 0.016” made of stainless steel (SS), nickel-titanium (NiTi) and glass fiber-reinforced polymer composite (GFRPC). Material and method Sixty specimens obtained from 10 sectioned pre-contoured arches (TP Orthodontics), were divided into 3 groups of 20 according to each type of material (1 esthetic-type wire and 2 not esthetic) and length of 50 mm. The methodology consisted of a 3-point bending test using esthetic ceramic brackets (INVU, TP Orthodontics, Edgewise, 0.022”x 0.025”) as points of support. The tensile tests were performed on a mechanical test machine, at a speed of 10 mm/min, deflection of 1 mm, 2 mm and 3 mm. Friedman’s Non Parametric Multiple comparisons test was used (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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