Shear-bond strength of orthodontic brackets to nano-hybrid composite resin using different protocols
Journal Title: IOSR Journal of Dental and Medical Sciences (IOSR-JDMS) - Year 2017, Vol 16, Issue 9
Abstract
Objective: The objective of this study was to test the effect of different bonding agents and surface preparation techniques on the shear bond strength values of metal orthodontic brackets on to polished nano-hybrid composite resin surface in vitro. Materials and methods: 90 composite resin discs were prepared and thermocycled, then they have been randomly divided into six groups, metallic orthodontic brackets were bonded to these composite discs using three bonding agents: Transbond XT primer, plastic conditioner and Assure Plus, each material was used with and without sandblasting with aluminum oxide particles. After thermocycling the samples again, Shear bond strength testing was done for all six groups using universal testing machine. Results: ANOVA test revealed a significant difference between the groups. Sandblasting significantly increased bond strength values for all three materials, moreover, Assure plus produced significantly higher bond strength values than the other two materials. Conclusion: sandblasting and using universal bonding agents like Assure Plus are both effective methods to increase bond strength values of orthodontics brackets to composite surface
Authors and Affiliations
Shwan Elias, Mohammed Rashed Nabi ALDOSKI, Firas Abdulmajeed
Keywords
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- EP ID EP255464
- DOI 10.9790/0853-1609016469
- Views 57
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