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KMID : 0362320080330050443
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Journal of Korean Academy of Operative Dentistry
2008 Volume.33 No. 5 p.443 ~ p.451
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EFFECT OF THE ADDITIONAL ETCHING PROCEDURE ON PUSH-OUT BOND STRENGTH OF ONE-STEP RESIN CEMENT
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Kang Soon-Il
Park Jeong-Kil
Hur Bock
Kim Hyeon-Cheol
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Abstract
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The purpose of this study was to evaluate the effect of additional etching procedure prior to Maxcem resin cement application in indirect restoration cementation using push-out bonding strength. One hundred and two extracted human molars were used to make indirect resin restorations of gold inlay and Synfony. These restorations were cemented using Maxcem and Variolink II. Additional etching procedures were done for one group with Maxcem. Three groups have 17 specimens in both restoration types. Push-out bond strength was measured using multi-purpose tester and calculated for bonding strength per sqaure-millimeter area. The mean bonding strength values were compared using SPSS 12.0K program for one-way ANOVA and Scheffe’s Test with 95% significance. Under the condition of this study, the additional etching procedure prior to usage of Maxcem resulted in reduced bond strength for both of restoration types.
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KEYWORD
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Bonding strength, Push-out bond strength, One-step bonding, Resin cement, Acid etching, Maxcem
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