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Effect of carbamide peroxide bleaching gel contains re-mineralization agent on microtensile bond strength of composite resins
23rd Global Dentists and Pediatric Dentistry Annual Meeting
July 17-18, 2017 Munich, Germany

A Salehi and N Salehi

Rafsanjan University of Medical Sciences, Iran

Posters & Accepted Abstracts: Dentistry


This study aimed to evaluate the effect of carbamide peroxide bleaching gel containing re-mineralization agents (CCP-ACP and fluoride) on microtensile bond strength of different composite resins. In this laboratory study, 30 extracted human molars were randomly divided into five groups, each group divided into two subgroups. Group 1: control, Group 2: bleaching gel without fluoride, Group 3: bleaching gel contains fluoride, Group 4: bleaching gel contains CCP-ACP, and Group 5: bleaching gel contain fluoride and CCP-ACP. In the first subgroup: nanofill composite resin (Filtek Z350 XT) and the second subgroup: microhybrid composite resins (Filtek Z250) were used for buildup on the enamel surfaces. After cutting the samples the universal test machine was used to measure the microtensile bond strength. Data were analyzed using one-way ANOVA and Tukey�??s tests via SPSS 21 software at a P<0.05 level of significance. The most microtensile bond strength of the composite resin to enamel was observed in control group and the lowest was observed in bleaching contains fluoride group. The average bond strength of the Filtek Z250 composite was higher than Filtek Z350 in all the groups. So the result show that applying carbamide peroxide bleaching gel and re-mineralization agent decreases microtensile bond strength of composite resin to enamel. Also microtensile bond strength of the nanofill composite resin (Filtek Z350 XT) is higher than the microhybrid composite resin (Filtek Z250).

Biography :

Email: armansalehi1984@gmail.com