IADR Abstract Archives
Evaluation of the Effects of Toothbrushing and Different Whitening Toothpastes on the Roughness and Microhardness of Nanofilled Resin-Based Composites
Objectives: The aim of this study was to evaluate the influence of electrically operated toothbrush and six toothpastes with different formulations on the microhardness and surface roughness of a nanofilled resin-based composite (Aelite Aesthetic Enamel) after brushing.
Methods: Aelite Aesthetic Enamel, a reinforced nanofil composite which was released to be used in the anterior region was used in the study. 56 composite resin samples were prepared in diameter of 5 mm and 2 mm in height. The surface of the samples were polished with polishing discs (Sof-Lex) and then the initial microhardness and surface roughness measurements were made with Vickers Microharness Device and Profilometer sequentially and recorded. Then the samples were divided into 7 groups (n=8 ); and every single group was brushed with Oral- B Triumph 5000 Rechargeable Toothbrush, with one of the whitening toothpastes (Signal White Now Gold, İpana Luxe 3D Whitening, Colgate Optic White, Advanced Whitening, Yotuel , Plus White Xtra Whitening) for 10 minutes. After brushing the the roughness and microhardness values of the specimens obtained again and recorded. Initial and final data obtained were evaluated statistically by one-way ANOVA and t-test (p = 0.05).
Results: Group 1, 2, 6, 7 causes a statistically significant differance on the nanofil composite surface microhardness , also group 5, 6, 7 causes a statistically significant difference in the roughness of the surface of the composite (p<0.05). Statistically analysis showed that, differences of surface microhardness for group 3 and 2 was signtifically different than that for group 1 (p<0.05). The most signtifical changes of roughness also observed in group 7 (p<0.05).
Conclusions: Whitening toothpastes of different ingredients used in this study was change the surface properties of the nanofill composite resin.
Methods: Aelite Aesthetic Enamel, a reinforced nanofil composite which was released to be used in the anterior region was used in the study. 56 composite resin samples were prepared in diameter of 5 mm and 2 mm in height. The surface of the samples were polished with polishing discs (Sof-Lex) and then the initial microhardness and surface roughness measurements were made with Vickers Microharness Device and Profilometer sequentially and recorded. Then the samples were divided into 7 groups (n=8 ); and every single group was brushed with Oral- B Triumph 5000 Rechargeable Toothbrush, with one of the whitening toothpastes (Signal White Now Gold, İpana Luxe 3D Whitening, Colgate Optic White, Advanced Whitening, Yotuel , Plus White Xtra Whitening) for 10 minutes. After brushing the the roughness and microhardness values of the specimens obtained again and recorded. Initial and final data obtained were evaluated statistically by one-way ANOVA and t-test (p = 0.05).
Results: Group 1, 2, 6, 7 causes a statistically significant differance on the nanofil composite surface microhardness , also group 5, 6, 7 causes a statistically significant difference in the roughness of the surface of the composite (p<0.05). Statistically analysis showed that, differences of surface microhardness for group 3 and 2 was signtifically different than that for group 1 (p<0.05). The most signtifical changes of roughness also observed in group 7 (p<0.05).
Conclusions: Whitening toothpastes of different ingredients used in this study was change the surface properties of the nanofill composite resin.