IN VITRO MICRO-SHEAR BOND STRENGTH OF FIVE COMPOSITE RESINS TO DENTIN WITH FIVE DIFFERENT DENTIN ADHESIVES

Article information

Restor Dent Endod. 2004;29(4):353-364

Publication date (electronic) : 2004 January 14

doi : https://doi.org/10.5395/JKACD.2004.29.4.353

Department of Conservative Dentistry, College of Dentistry, Yonsei University

^*Corresponding author: Byoung-Duck Roh, Department of Conservative Dentistry, The college of Dentistry, Yonsei University 134 Shinchon-Dong, Seodaemoon-Gu, Seoul, Korea, 120-752, Tel : 82-2-361-8700 Fax : 82-2-313-7575, E-mail : operatys16@yumc.yonsei.ac.kr

Abstract

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 (5 × 5 = 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.

Keywords: Micro-shear bond strength; Dentin adhesive system; Composite resin; Self-etching primer adhesive system; Self-priming adhesive system

Figure 1.

Tooth slice and specimen hole.

Figure 2.

Wire-loop method (EZ test, Shimadzu, Japan).

Figure 3.

Micro-shear bond strength of dentin adhesive systems.

Figure 4.

Micro-shear bond strength of composite resins in each adhesive system.

Figure 5.

Micro-shear bond strength of composite resins(㎫).

Figure 6.

Micro-shear bond strength of dentin adhesive system in each composite resin.

Figure 7.

SEM observations of fracture site of Prime and Bond NT group.

Figure 8.

SEM observations of fracture site of Excite and Onecoat bond group.

Figure 9.

SEM observations of fracture site of Syntac group.

Figure 10.

SEM observations of fracture site of Clearfil SE bond group.

Figure 11.

Comparison of fracture pattern of self-etching primer adhesive system and self-priming adhesive system.

Figure 12.

Dentinal tubule orifices of fracture site(OC-TC).

Table 1.

Dentin adhesive systems

Table 2.

Composite resins

Table 3.

Experimental groups

Table 4.

Overall view of micro-shear bond strength (㎫)

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