The effects of different polishing instruments on the microstructure of different tipes of composite resins

VernacularTitle:不同抛光工具对不同类型复合树脂表面微观结构的影响
Author: Lei SUN ; Jiliang XU ; Yikai CHEN ; Chun LIU ; Rong XIA
Publication Type:Journal Article
Keywords: Composite resin; Polishing; Surface roughness; Microstructure; Enamel
From: Journal of Practical Stomatology 2014;(5):629-632
CountryChina
Language:Chinese
Abstract: Objective:To evaluate the effect of different polishing instruments on the microstructure of composite resin.Methods:Specimens of 5 kinds of resins were randomly divided into three groups and were polished with Astropol(group A),Sof-Lex(group B) and Super-snap(group C)respectively(n=3 for each resin).Specimens of natural enamel surface were used as the controls(group D).The surface roughness(Ra)and microstructure of the specimens were evaluated by an atomic force microscope(AFM).Results:Ra value in group A was lower than that in group B(P=0.015);Z350 XT resin obtained the lowest Ra value among the 5 kinds of resin specimens(P<0.05).All of the resin specimens had similar average Ra after polishing procedure(P>0.05).Conclusion:Astropol polishing instrument is better than Sof-Lex;Z350 XT has better polish performance.The three polishing instruments are ef-fective in polishing the 5 composite resins.