The Shear Bond Strength of the Sapphire Bracket Bonded to Composite Restoration Using Different Bonding Agents

Section: Research Paper
Issue
Vol. 25 No. 1 (2025): Volume 25 Issue 1
Published
Mar 1, 2025
Pages
80-94

Abstract

Aims: This study aimed to determine the most effective bonding system of sapphire brackets bonded to composite restoration. Materials and Method: Thirty composite discs (3M Filtek™ Z250) were stored in deionized water for nine days then conditioned with 37% phosphoric acid and divided into three groups based on the bonding agent: group (A) conventional bonding agent (Transbond XT™), group (B) Scotchbond™ and group (C) Assure Plus® were used, then the conventional adhesive (Transbond XT™) was applied to the base of sapphire brackets then bonded to composite discs. After bonding the composite discs, they were thermocycled for 5000 cycles, the shear bond strength (SBS) was measured, and the adhesive remnant index (ARI) was determined. Results: One-way ANOVA revealed no significant difference, although Assure Plus and Scotchbond showed higher SBS than Transbond, and the Kruskal-Wallis test revealed no significant difference in the ARI scores between the groups. Conclusion: All bonding agents produced more than the clinically acceptable shear bond strength (SBS), and all groups caused composite restoration surface fracture, indicating high SBS.


 

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Authors

Luma Salim Danha

College of Dentistry / Baghdad University, Baghdad, Iraq

ORCID
Reem Atta Rafeeq

College of Dentistry / University of Baghdad, Baghdad, Iraq

ORCID

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