미세-전단 결합 강도 시험을 이용한 상아질 접착제와 수복용 복합레진의 호환성에 관한 연구
In vitro micreo-shear bond strength of five composite resins to dentin with five different dentin adhesives
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Abstract
The purpose of this study was to compare and to evaluate the combination use of 5 kinds of dentin adhesive systems and 5 kinds of composite resins using micro-shear bond test. Five adhesive systems(Prime & Bond NT(PBN), Onecoat bond(OC), Excite(EX), Syntac(SY), Clearfil SE bond(CS)) and five composite resins(Spectrum(SP), Synergy Compact(SC), Tetric Ceram(TC), Clearfil AP-X(CA), Z100(Z1)) were used for this study(5x5=25group, n=14/group). The slices of horizontally sectioned human tooth were bonded with each bonding system and each composite resin, and tested by a micro-shear bond strength test. These results were analyzed statistically. The mean micro-shear bond strength of dentin adhesive systems were in order of CS(22.642 MPa), SY(18.368 MPa), EX(14.599 MPa), OC(13.702 MPa), PBN(12.762 MPa). The mean bond strength of self-etching primer system group(CS, SY) in dentin was higher than that of self-priming adhesive system groups(PBN, EX, OC) significantly(P<0.05). The mean bond strength of composite resins was in order of SP(19.008 MPa), CA(17.532 MPa), SC(15.787 MPa), TC(15.068 MPa), Z1(14.678 MPa). Micro-shear bond strength of SP was stronger than those of other composite resins significantly(P<0.05). And those of TC and Z1 were weaker than other composite resins significantly(P<0.05). No difference was found in micro-shear bond strength of composite resin in self-etching primer adhesive system groups(CS, SY) statistically. However, there was significant difference of micro-shear bond strength of composite resin groups in self-priming adhesive systems group(PBN, EX, OC). The combination of composite resin and dentin adhesive system recommended by manufacturer did not represent positive correlation. It didn't seem to be a significant factor.
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