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KMID : 0362220120390020119
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Journal of The Korean Research Society for Dental Materials
2012 Volume.39 No. 2 p.119 ~ p.128
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Microleakage and Microtensile Bond Strength Evaluation of the Various Generations of Dentin Bonding Agents
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Kim Yong-Il
Yoon Jung-Hun
Lee Sang-Hyeok
Cheng Yanping
Lee Sang-Hoon
Yang Hyeong-Cheol
Lim Bum-Soon
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Abstract
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The purpose of this study was to evaluate bonding durability for the various generation of dentin bonding
agents. Eight dentin bonding agents were tested. One hundred twenty non caries extracted human molars
were used. Microleakage and microtensile bond strength (MTBS) test were performed. The specimens were
bonded with dentin bonding adhesive systems according to manufacturer’s instruction. The specimens were
cut to stick-shape and stressed in tension at a crosshead speed of 1 mm/min. Results were analyzed using
Weibull analysis. Scotchbond MP (3M ESPE) showed the least microleakage, and the other groups showed the
similar microleakage. The MTBS of experimental groups varied from 30.80 to 39.54 MPa. Single Bond (3M
ESPE) had the highest Weibull modulus (6.543) and Clearfil S3 Bond (Kuraray) had the lowest value (3.832).
The simplified dentin bonding adhesives (7th generation) showed acceptable bond strength in comparison
with the three-step adhesives (4th generation).
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KEYWORD
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dentin bonding agents, microleakage, MTBS, self-etching, generation
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