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Efficacy of polishing kits on the surface roughness and color stability of different composite resins


1 Department of Prosthodontics, Faculty of Dentistry, Pamukkale University, Denizli, Turkey
2 Department of Endodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
3 Department of Prosthodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
4 Department of Periodontology, Faculty of Dentistry, Erciyes University, Kayseri, Turkey
5 Department of Pedodontics, Faculty of Dentistry, Erciyes University, Kayseri, Turkey

Correspondence Address:
H Gumus,
Department of Pedodontics, Faculty of Dentistry, Erciyes University, Kayseri
Turkey
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Source of Support: None, Conflict of Interest: None

Objective: Different polishing kits may have different effects on the composite resin surfaces. The aim of this study was to evaluate the surface roughness and color stability of four different composites which was applied different polishing technique. Materials and Methods: Thirty specimens were made for each composite resin group (nanohybrid, GrandioSo-GS; nanohybrid, Clearfil Majesty Esthetic-CME; hybrid, Valux Plus-VP; micro-hybrid, Ruby Comp-RC; [15 mm in diameter and 2 mm height]), with the different monomer composition and particle size from a total of 120 specimens. Each composite group was divided into three subgroups (n = 10). The first subgroup of the each composite subgroups served as control (C) and had no surface treatment. The second subgroup of the each composite resin groups was polished with finishing discs (Bisco Finishing Discs; Bisco Inc., Schaumburg, IL, USA). The third subgroup of the each composite resin was polished with polishing wheel (Enhance and PoGo, Dentsply, Konstanz, Germany). The surface roughness and the color differences measurement of the specimens were made and recorded. The data were compared using Kruskal-Wallis test, and regression analysis was used in order to examine the correlation between surface roughness and color differences of the specimens (α = 0.05). Results: The Kruskal-Wallis test indicated significant difference among the composite resins in terms of ΔE (P < 0.05), and there was no statistically significant difference among composite resins in terms of surface roughness (P > 0.05). Result of the regression analysis indicated statistically significant correlation between Ra and ΔE values (P < 0.05, r 2 = 0.74). Conclusion: The findings of the present study have clinical relevance in the choice of polishing kits used.


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    -  Aslan T
    -  Gürbulak A
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