The efficiency of a new polishing material: Nanotechnology liquid polish

Abstract

Introduction: This study evaluated the efficiency of a nanotechnology liquid polish system on the surface roughness of two different types of nano resin composites. Methods and Materials: The resin composite materials tested in this study were Ceram-X (Dentsply) and Clearfil Majesty Esthetic (Kuraray). Forty standard samples of each resin composite material were prepared and stored in artificial saliva at 37°C for one week. The samples of each material were randomly assigned to one of four test groups (n=10) and contoured with carbide burs, except for Group 1 (control). Group 2 was treated with aluminum oxideimpregnated polymer points (Enhance Finishing System, Dentsply), followed by diamond-impregnated micropolishing points (PoGo, Dentsply); whereas Group 3 was treated with only a nanotechnology liquid polish system (Lasting Touch, Dentsply) and Group 4 was treated with aluminum oxide-impregnated polymer points and diamond-impregnated micropolishing points, then the nanotechnology liquid polish system. Surface roughness values (Ra) of all samples were obtained with an optical profilometer. The difference between the groups was assessed with one-way analysis of variance and the Kruskal Wallis test. Results: All finishing and polishing techniques created statistically rougher surfaces than the control group (p<0.001). The lowest Ra values were detected in Group 4, although significant differences were not found between Groups 2 and 4 (p>0.001) independent of the type of resin composites. Conclusion: With the combination of finishing and polishing procedures, a nanotechnology liquid polish application may provide a more glossy surface for resin composite restorations.