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KMID : 0358920080350030456
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Journal of the Korean Academy of Pedodontics
2008 Volume.35 No. 3 p.456 ~ p.468
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THE STUDY ON THE MICROLEAKAGE PATTERN OF FLOWABLE COMPOSITE RESIN RESTORATIONS ACCORDING TO THE TYPE OF ADHESIVE MATERIALS
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Park Ji-Eun
Yoo Seung-Hoon
Kim Jong-Soo
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Abstract
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This study was performed to evaluate the quality of newly offered dentin bonding system( One) by comparing the degree of microleakage measured with those of several conventional adhesive materials(AQ Bond Plus and Single Bond 2). The quality of hybrid layer and resin tags was analyzed by observing restoration/ tooth interface under SEM. All-in-one system is in the limelight for having advantage of reducing chair time of children with difficult behavior pattern. Therefore the possibility of clinical application of All-in-one system was evaluated. The results obtained are as follows; 1. At the enamel margin, group II(AQ Bond Plus) showed the highest value of microleakage, and the other groups showed decreased value in order of group III( One) and I( Single Bond 2). There was statistically significant difference between group II and the others(p<0.05), and no statistical difference was found between group I and III. 2. At the dentin margin, microleakage value was increased in order of group II, I, III and significant difference between all groups(p<0.05). 3. In group I and III, microleakage value measured at the enamel margin was significantly lower than that seen at the dentin margin(p<0.05), and there was no statistical difference in group II. 4. Resin tags observed under SEM were very weak and tangled in group II and III while the strong and thick tags were observed in group I. In conclusion, careful case selection and accurate clinical application is recommended in using AQ Bond Plus and One, giving consideration of the results showing its higher microleakage and weaker strength than Single Bond 2.
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KEYWORD
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Microleakage, All-in-one system
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