Effect of different dentin adhesive on the microleakage of Ceramage polymerization porcelain inlay

ZHANG Lei; CAO Qi

Abstract：Objective To compare the effect of 4 kinds of dentin adhesive on the microleakage of Ceramage polymeriza-tion porcelain inlay and provide the reference for the clinical choice of adhesive. Methods Totally 40 premolar teeth were collected,which developed normally and had no caries but should be extracted because of orthodontic. The teeth were randomly divided into 4 groups,each group 10. ClassⅡhole was made in 40 teeth and resin inlays were made with Ceramage polymerization porcelain. Respectively,each group were coated with dentin adhesive--Prime&Bond coated NT(NT),Adper Single Bond 2(SB2),Clearfil SE Bond(SE),Clearfil S3 Bond(S3). Rely X ARC resin was used to co-here inlays. All the test-pieces,after 500 thermal cycles and fuchsin staining,were longitudinally split 2 times with em-ery sheets,measuring depth of dye penetration into shaft wall and gingival wall under optical microscope. Results Shaft walls:microleakage variance were statistically significant in the 4 groups(F=8.3125,P<0.01). The microleakage lev-el in group S3 was significantly higher than in group SB(q=6.4032),group SE(q=5.7708)and group NT(q=4.0316) (P<0.01),but no significant difference among the other three groups. Gingival walls:no statistically significant differ-ences were shown in different adhesive microleakage(F=0.5897,P>0.05);for the same adhesive,gingival microleak-age degree was significantly higher than shaft wall(P < 0.01). Conclusion Clearfil S3 Bond on the sealing effect of enamel is poor. Evaluated from the microleakage depth size and operation method,Clearfil SE Bond is an ideal dentin ad-hesive for resin inlay.