Giomer와 자가 산부식 접착제의 상아질에 대한 전단 결합강도

Abstract

The purpose of this study was to evaluate the shear bond strength of Giomer using self-etching primer systems to bovine dentin. Giomer is fluoride-releasing, resin-based dental materials that comprise PRG(pre-reacted glass ionomer) filler. Bovine incisors were mounted in self-curing orthodontic resin and the facial surfaces were wet ground on 220, 400, 800, 1200 grits SIC paper to expose the dentin. Total 75 samples were made and divided randomly into 3 groups, Giomer group(Ⅰ), Composite resin group(Ⅱ) and Compomer group(Ⅲ). The shear bond strengths of 25 samples per each group were measured using universal testing machine at a cross-head speed 0.5mm/min. And data were analyzed statistically with One-way ANOVA and Scheffe test. Giomer group(Ⅰ) showed the significantly higher bond strength than Compomer group(Ⅲ)(p<0.05). There was no significant difference between Giomer group(Ⅰ) and Composite resin group(Ⅱ)(p>0.05). Based on the results of present study, the use of Giomer as an esthetic restorative material for primary teeth might be justified. It is considered that more study about the fluoride releasing ability is needed to evaluate the anticariogenic effect of giomer.