مرکز منطقه ای اطلاع رساني علوم و فناوري - THE EFFECT OF DIFFERENT FINISHING/POLISHING SYSTEMS ON SURFACE ROUGHNESS OF POLYACID-MODIFIED COMPOSITE RESIN (COMPOMER)

Abstract :

Objective: Aim of this study was to evaluate the smoothest surface of polyacid-modified composite resin (Compomer) produced by different finishing/polishing systems. Material andMethod: Sixty specimens, prepared with compomer restorative material, were polymerized under Mylar strip and stored in 37 °C distiled water for 24 h, than surface roughness of each specimen was measured with profilometer for achieving base-line measurement before finishing/polishing procedures. Specimens were divided into two main groups for finishing procedures with 16-bladed tungsten carbid and diamond finishing burs and the main groups were subdivided to three groups for polishing procedures. PoGo, Sof-Lex and Composhine were used for polishing procedures and surface roughness of specimens were measured eventually. t-test and oneway ANOVA were used for statistical analysis. Results: There was a significant difference between the surface roughness before and after finishing/polishing procedures for all groups (p 0,05). There was no difference between the finishing procedures (p 0,05), while there were siginificant differences among polishing systems (p 0,05). The smoothest surfaces was provided with Sof-Lex disc system; PoGo and Composhine polishing systems were showed similiar results (p 0,05). Conclusion: According to results of this study, finishing with either tungsten carbid or diamond finishing burs showed no difference for compomer surface, but, the smoothest surfaces were achieved using Sof-Lex disc system among the used polishing systems Sof-Lex, PoGo ve Composhine.