The Effect of Finishing and Polishing Systems on the Surface Roughness of Indirect Composite Resins

Objective: The aim of this study was to evaluate the effects of different types of finishing and polishing systems on the surface roughness of indirect composite resins.Materials and Methods: In this study, 2 indirect composite resins (Gradia Plus (GC Inc., Kyoto, Japan, and Ceramage, SHOFU Inc., Kyoto, Japan) and 2 direct composite resins (FiltekZ250, 3M ESPE, St. Paul, USA and GradioSO, VOCO GmbH, Cuxhaven, Germany) were used. A total of 144 discs specimens were prepared. The specimens were randomly divided into 3 subgroups (n=12). Group K: Mylar Strip Band (Control), Group L: Silicone Polisher (Nais, Sofia, Bulgaria), Group D: Super Snap disc (SHOFU, Kyoto, Japan) polishing systems were used. The surface roughness of the specimens was measured using a profilometer (Surftest-211, Kanagawa, Japan). The data were analyzed statistically (p<0.05).Results: The Mylar strip band surface (control) was measured as the smoothest surface in all groups. While the roughest surface measured was polishing with silicone polishers. (p<0.05). While there is no significant statistical difference between the Mylar strip band and yellow rubber polishing system in all materials, a significant difference was found in the Super Snap polishing disc system between Filtek Z250 and Ceramage material (p=0.002).Conclusions: In this study, both the polishing systems used and the materials used had an effect on the surface roughness of indirect resin composites.