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Year : 2017  |  Volume : 6  |  Issue : 2  |  Page : 86-91

Effects of two different bleaching agents on surface roughness and microhardness of different novel nano-restorative materials

1 Ministry of Health, Ankara, Turkey
2 Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Sihhiye, Turkey

Correspondence Address:
Fatma Dilsad Oz
Department of Restorative Dentistry, School of Dentistry, Hacettepe University, Sihhiye 06100, Ankara
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/2278-9626.206375

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Objectives: The aim of this study was to evaluate the effects of 15% hydrogen peroxide (Illuminé Office) and 16% carbamide peroxide (VivaStyle) on the surface roughness and hardness of nano-restoratives. Materials and Methods: A total of 30 specimens of each material were fabricated using Clearfil Majesty Esthetic (Group1), Tetric EvoFlow (Group2) and Ketac N100 (Group3). Each group were divided into 3 subgroups and treated as follows: Group 1a, 2a, 3a was treated with Illuminé Office, Group 1b, 2b, 3b was treated with VivaStyle, Group 1c, 2c, 3c was stored in distilled water at 37°C for two weeks (control). Surface roughness and microhardness tests were performed. Results: There were no significant differences in terms of roughness and microhardness among Clearfil Majesty Esthetic and Tetric EvoFlow groups, seperately (P > 0.05). Illuminé Office increased the roughness and decreased the microhardness of Ketac N100 (P< 0.05). Conclusion: Bleaching may affect the roughness and microhardness of nano-restoratives depending on material and bleaching system.

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