ผลของยาสีฟันเพื่อฟันขาวต่อการสึกและความหยาบผิวของเรซินคอมโพสิต / ณัฐกานต์ วงษ์ประทีปศิริ = The effect of whitening dentifrices on wear and surface roughness of resin composites / Nattakarn Wongprateepsiri
Objective: The purpose of this study was to investigate the wear and surface roughness of 4 types of resin composite after brushing using 4 products of whitening dentifrice. Materials and methods: 64 specimens of each resin composite: Filtek Z350 XT, Herculite Ultra, Durafill VS and Filtek Z250 were made using metal molds. Each type of resin composite was divided into 4 groups according to 4 products of whitening dentifrices: Sparkle White, Fluocaril Healthy Whitening, Colgate Advanced Whitening and Sensodyne Whitening. The volume and surface roughness was measured using a profilometer before and after brushing in a brushing machine at 20,000 strokes. Results were analyzed by two-way ANOVA and Tamhane’s test at a significant level of 0.05. Results: After brushing with all dentrifrices, Durafill VS showed significantly different wear and surface roughness from Herculite Ultra, Filtek Z350 XT and Filtek Z250 (p < 0.05). Sensodyne Whitening produced the most wear of resin composites. Sensodyne Whitening, Sparkle White and Colgate Advanced Whitening produced more surface roughness of resin composites than Fluocaril Healthy Whitening. Conclusion: Durafill VS showed the most wear and surface roughness when brushed with all whitening dentifrices. Sensodyne Whitening, Sparkle White and Colgate Advanced Whitening produced more wear and surface roughness of resin composites than Fluocaril Healthy Whitening.