Pengaruh Konsentrasi Cangkang Kerang Darah (Anadara granosa) 25% Dan 50% Sebagai Bahan Pasta Polishing Restorasi Resin Komposit Nanohybrid Terhadap Stabilitas Warna (In Vitro)

Abstract

One of the key success factors in composite resin restorations is the color stability achieved through proper finishing and polishing procedures. The use of polishing paste is the final stage of the polishing procedure. The use of blood clam shell in dentistry has begun to be developed in various studies due to its abrasive properties. The purpose of this study was to examine the effect of different concentrations of blood clam shell (Anadara granosa) as a polishing paste base ingredient on the surface color stability of nanohybrid composite resin restorations. Blood cockle shells were ground, refined, and sieved to obtain a particle size of ≤10 μm, then made into a paste with concentrations of 25% and 50%. A total of 32 maxillary premolars were prepared to create a cavity on the buccal surface and then restored using nanohybrid composite resin. The samples were divided into four groups: 25% blood cockle shell polishing paste, 50% blood cockle shell polishing paste, commercial polishing paste, and no paste. The samples were thermocycled and immersed in artificial saliva for 24 hours, then their color was measured using a colorimeter. After the samples were immersed in the coffee solution for 5 days, the color was measured again. The data were analyzed using ANOVA and a post-hoc test (LSD) with a significance level of α = 0.05. The results of the One-Way ANOVA test showed that there was a significant difference in the color of the samples. The effect of blood clam shell-based polishing paste concentration on the color stability of nanohybrid composite resin. The results of the LSD post-hoc test showed significant differences between all groups. However, the smallest and clinically acceptable color change was seen in the blood clam shell polishing paste group with a concentration of 25% (ΔE = 2.225), while the largest color change was seen without the paste (ΔE = 4.692). The conclusion is that the 25% and 50% concentrations both have the same effect on the color stability of nanohybrid composite resin, and the color change is still clinically acceptable.