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Information Journal Paper

Title

The effects of two types of bleaching agents on color and translucency changes of three types of composite with or without surface rebounding

Pages

  146-155

Abstract

 Background and Aims: The Color:#ff0078">Bleaching agents can lead to Color and Translucency changes in composite resins. Due to the increasing use of the nano composites and the Color:#ff0078">Silorane-based composites, this study aimed at examining the Color and Translucency changes of these restorations after Color:#ff0078">Bleaching agents. Materials and Methods: In this experimental-laboratory study, 198 composite discs were divided into three groups of 66 specimens using three types of composite: the microhybrid composite Z250, the nanohybrid composite Z350 and the Color:#ff0078">Siloranebased composite P90. After acid etching, half of the specimens in each group were covered by a resin Color:#ff0078">Rebounding agent. Then, the Color and Translucency assessment was done by reflectance spectrophotometer, using CIE LAB system. Each group was divided into three subgroups of Color:#ff0078">Bleaching agents: the 40% hydrogen peroxide and 20% carbamide peroxide Color:#ff0078">Bleaching agents and the control group. After applying Color:#ff0078">Bleaching agents, the final Color and Translucency changes were assessed. Data were analyzed using Mann Whitney and Kruskal Wallis tests. Results: The effect of composite and Color:#ff0078">Bleaching agent type and bonding agent were significant (P<0. 001). The Color changes in the microhybrid composite were higher than nanohybrid and Color:#ff0078">Silorane-based composites (P<0. 001) (Δ E>3. 3). Also, the Color changes by 20% carbamide peroxide were higher than that of hydrogen peroxide and control groups (P<0. 001). The results of Translucency changes were generally consistent with Color-change measurements (Δ E>3. 3). Conclusion: According to the present study, the most Color changes appeared in the microhybrid composite and by 20% carbamide peroxide Color:#ff0078">Bleaching agent. Rebound samples were generally less affected by Color:#ff0078">Bleaching agents. The least Color and Translucency changes were related to nanohybrid composites.

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  • Cite

    APA: Copy

    DAVARI, ABABDOLRAHIM, DANESHKAZEMI, ALIREZA, SHESHMANI, MAHSAN, Karami, Haleh, & motallebi, Elham. (2019). The effects of two types of bleaching agents on color and translucency changes of three types of composite with or without surface rebounding. JOURNAL OF DENTAL MEDICINE, 32(3 ), 146-155. SID. https://sid.ir/paper/377869/en

    Vancouver: Copy

    DAVARI ABABDOLRAHIM, DANESHKAZEMI ALIREZA, SHESHMANI MAHSAN, Karami Haleh, motallebi Elham. The effects of two types of bleaching agents on color and translucency changes of three types of composite with or without surface rebounding. JOURNAL OF DENTAL MEDICINE[Internet]. 2019;32(3 ):146-155. Available from: https://sid.ir/paper/377869/en

    IEEE: Copy

    ABABDOLRAHIM DAVARI, ALIREZA DANESHKAZEMI, MAHSAN SHESHMANI, Haleh Karami, and Elham motallebi, “The effects of two types of bleaching agents on color and translucency changes of three types of composite with or without surface rebounding,” JOURNAL OF DENTAL MEDICINE, vol. 32, no. 3 , pp. 146–155, 2019, [Online]. Available: https://sid.ir/paper/377869/en

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