Akademik Veri Yönetim Sistemi
Necmettin Erbakan Üniversitesi Diş Hekimliği dergisi (Online), cilt.7, sa.2, ss.184-192, 2025 (TRDizin)
Aim: This study aimed to compare and evaluate the effect of different polishing methods on the surfaceroughness and colour change of composite resins.Materials and methods: This study used a total of 100 disc-shaped samples made of microhybrid (M) andnanohybrid (N) composite resins. The experimental groups comprised of 5 groups (n=10) for eachcomposite type. The groups were as follows: control (K), diamond bur+polishing rubber (BP), arkansasbur+polishing rubber (AP), diamond bur+polishing rubber+polishing paste (BPP), and disc+polishing paste(DP). Surface roughness (Ra) and initial colour were measured after the polishing methods were tested onall groups. After 7 days of coffee solution application, the colour changes (ΔE) were measured again andthe results were recorded. CIEDE2000 formula was used to calculate the colour change.Results: Mann-Whitney U test, Kruskal-Wallis test, and one-way analysis of variance were used instatistical analyses where appropriate. The samples to which disc and polishing paste were applied showedstatistically significantly brighter surfaces than the other groups (p<0.05). The highest colour change wasobserved in the control group and the groups where arkansas stone was applied (p<0.05). Colour changewas also higher in the groups with higher surface roughness.Conclusion: Polishing with polishing paste can give good results in polishing and colour stability ofcomposites.