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KMID : 0358920080350020259
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Journal of the Korean Academy of Pedodontics
2008 Volume.35 No. 2 p.259 ~ p.267
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INFLUENCE OF FLOWABLE COMPOSITE LINING THICKNESS ON CERVICAL MICROLEAKAGE OF PROXIMAL BOX
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Cho Yun-Jung
Kim Young-Jin
Kim Hyun-Jung
Nam Soon-Hyeun
Kim Tae-Wan
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Abstract
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This in vitro study aimed to investigate the influence of flowable composite lining with different thicknesses on the marginal quality. One hundred twenty cavities, each preparated with proximal boxtype( 3mm of bucco-lingual width, 2mm of mesio-distal depth and gingival margin of 1mm supra-CEJ) were randomly dived into four groups. group I : Tetric ceram filling alone(control group) group II: 0.5mm thickness Tetric flow + Tetric ceram filling group III: 1.5mm thickness Tetric flow + Tetric ceram filling group IV: 2.5mm thickness Tetric flow + Tetric ceram filling The followings are the results: 1. Group II showed significantly less microleakage compared to group I(control group)(p<0.05). 2. There was no statistically significant difference between group III, IV and group I(p>0.05). 3. Group II showed significantly less microleakage compared to group III, IV(p<0.05). 4. There was microleakage more or less in all group. It was concluded that 0.5mm flowable composite lining improved cavity adaptation and marginal sealing.
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KEYWORD
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Proximal box, Flowable resin, Thickness, Microleakage
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