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KMID : 0988720080240010105
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Journal of the Korean Academy of Stomatognathic Function and occlusion
2008 Volume.24 No. 1 p.105 ~ p.112
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Measurement of Contact Angle and Bond Strength Using 3 Different Self-Etching Primer
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Chang Seok-Woo
Kwon Ho-Beom
Yoo Heyon-Mee
Park Dong-Sung
Oh Tae-Seok
Bae Kwang-Shik
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Abstract
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The purpose of this study was to evaluate the contact angle made by 3 kinds of self etching primers (Clearfil SE Bond, AdheSE, and Tyrian) on dentin and to measure the microtensile bond strength of resin composite to dentin using these self-etching primers. Contact angle between each of 3 self etching primers and polished dentin surface was measured (n=30) by contact angle analyzer and the result was analyzed by One-way ANOVA. For the measurement of microtensile bond strength, polished dentin surface was treated with each of 3 self etching primers and dentin adhesives. Z-250 composite resin was built-up with a height of 5 mm on the adhesive-treated surface and light cured for 40s with a halogen light curing unit. Thereafter, each tooth was sectioned into slabs perpendicular to the bonded interface and trimmed (n=45). The microtensile bond strength was measured with universal testing machine and the result was analyzed with Kruskal-Wallis test. AdheSE group showed the highest contact angle followed by Clearfil SE group and Tyrian group (p<0.05). AdheSE group and Clearfil SE group showed significantly higher microtensile bond strength than Tyrian group (P<0.05).
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