Effect of Bleaching and Thermocycling on Resin-Enamel Bond Strength

Moosavi, H. and Mohammadipour, H. S. and Ghavamnasiri, M. and Alizadeh, S. (2015) Effect of Bleaching and Thermocycling on Resin-Enamel Bond Strength. International Journal of Biomaterials, 2015.

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Abstract

The aim of this study was to evaluate the effect of bleaching and thermocycling on microshear bond strength of bonded resin composites to enamel. Enamel slices were prepared from ninety-six intact human premolars and resin composite cylinders were bonded by using Adper Single Bond 2 + Filtek Z350 or Filtek silorane adhesive and resin composite. Each essential group was randomly subdivided to two subgroups: control and bleaching. In bleaching group, 35 hydrogen peroxide was applied on samples. Thermocycling procedure was conducted between 5°C and 55°C, for 3.000 cycles on the half of each subgroup specimen. Then microshear bond strength was tested. Methacrylate-based resin composite had higher bond strength than silorane-based one. The meyhacrylate-based group without bleaching along with thermocycling showed the most bond strength, while bleaching with 35 carbamide peroxide on silorane-based group without thermocycling showed the least microshear bond strength. Bleaching caused a significant degradation on shear bond strength of silorane-based resin composites that bonded using self-etch adhesive resin systems. Copyright © 2015 Horieh Moosavi et al.

Item Type: Article
Additional Information: Cited By :2 Export Date: 16 February 2020 Correspondence Address: Alizadeh, S.; Dental Materials Research Center, Department of Operative Dentistry, Faculty of Dentistry, Mashhad University of Medical SciencesIran; email: alizadehs911@gmail.com
Uncontrolled Keywords: hydrogen peroxide methacrylic acid resin resin cement silorane Article bleaching chemical composition chemical reaction composite material controlled study degradation enamel human human tissue priority journal shear strength thermocycling
Subjects: WU Dentistry. Oral surgery
Divisions: Mashhad University of Medical Sciences
Depositing User: mr lib5 lib5
Date Deposited: 04 May 2020 09:02
Last Modified: 04 May 2020 09:02
URI: http://eprints.mums.ac.ir/id/eprint/18988

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