Effect of three finishing and polishing systems on the surface of nanofilled composite resin. A novel research approach.

Dr. KONARK; Dr. ANJU SINGH

Volume : VIII, Issue : IX, September - 2019

Effect of three finishing and polishing systems on the surface of nanofilled composite resin. A novel research approach.

Dr. Konark, Dr. Anju Singh

Abstract :

Background: The aims of this study were to evaluate the effectiveness of three finishing and polishing systems on the surface of nanofilled composite, and to evaluate the effect of the surface sealant application (prime & bond) on the surface roughness after finishing and polishing procedures of tested composite. Material and Method: A total of 60 composite discs of dimension 6 x 3 mm (6mm in diameter x 3mm in thickness) were made using a custom made stainless steel mould and then randomly divided into 3 subgroups for finishing and polishing by three different methods; Sof-Lex, Shofu and Mylar strip. The average surface roughness (Ra, μm) of all specimens was measured with aprofilometer. A surface sealant was then applied to all the treated specimens, according to manufacturer�s instructions and the average roughness was measured again. Result: Statistically significant difference was observed in surface roughness values before and after sealant application when finished and polished with shofu system. The lowest roughness values, before and after sealant application, was obtained when cured under a Mylar strip and the highest values were obtained when treated with Shofu. Conclusion: The Mylar strips gave lowest Ra values followed by Sof-Lex followed by Shofu and the surface sealant improved the surface texture of tested specimens drastically.