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http://hdl.handle.net/1942/5989
Title: | In vitro peel/shear bond strength evaluation of bracket base design | Authors: | Willems, G. Carels, C. VERBEKE, Geert |
Issue Date: | 1997 | Publisher: | Elsevier Science Ltd. | Source: | Journal of dentistry, 25(3-4). p. 271-278 | Abstract: | Objectives: The adhesive capacity of 17 different bracket types was evaluated in an in vitro peel/shear test. Methods: Silane-treated metal bars were used as substrates with all bonding being performed using the orthodontic adhesive Concise. The effect of aluminium oxide air abrasion on the bonding performance of recycled metal bracket bases was evaluated. Morphological examination of the bracket bases was carried out under scanning electron microscopy. Statistics analysis included one-way ANOVA with Tukey's Studentized Range Test, two-way ANOVA and Weibull analysis. Results: Mean peel/shear bond strength values range from 13.9 MPa for Allure Accu Arch, a ceramic bracket type, to 1.6 MPa for the plastic bracket CeramaFlex Advant Edge. Allure Accu Arch performed the best of all the ceramic brackets. However, bracket wing fracture was observed. The metal brackets Mini masters and Omni Arch showed no significant difference in bond strength compared with the ceramic bracket Allure Accu Arch (P < 0.01). Conclusion: The type of the bracket base determines its adhesive capacity. Sandblasting the base of recycled metal brackets had no uniform effect. | Keywords: | Shear bond strength; Bracket base design | Document URI: | http://hdl.handle.net/1942/5989 | DOI: | 10.1016/S0300-5712(96)00007-3 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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