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KMID : 1157520120080030181
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International Journal of Clinical Preventive Dentistry
2012 Volume.8 No. 3 p.181 ~ p.186
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Marginal Micro-Leakage of the Sealant according to the Enamel Preparation
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Choi Yeon-Hee
Oh Hyun-Kyung
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Abstract
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Objective: The author has experimented on the marginal leakage of the pit and fissure sealant by enamel preparation, according to the preparation and the proper sealant in clinical use.
Methods: 3 kinds of the sealant was chosen and 84 permanent extracted Premolar for orthodontic treatment were selected by deviding with 6 groups, as applying etchant or etching after preparation with a Tungsten carvide bur, for 3 kinds of the sealant group. Methylen blue was applied to infiltrate from the margine of sealant for each group. Stereo microscope was used to observe the micro-leakage after cutting longitudinally, and measured the depth penetration by use of Raadal M method. The obtained results were as follows.
Results: 1. The average degree of the micro-leakage were less in enamel preparation with bur group than in enamel etching group (p＜0.01), otherwise, no significant different both in Clinpro sealant and Seal it groups (p＞0.05). 2. The comparison of the micro-leakage was shown as higher in Seal-it and Bosthworth group than in Clinpro group, in enamel etching group (p＜0.05), otherwise, heigher in Bosthworth group than Seal-it or Clinpro group, in enamel etching after preparation with bur group, in statistically, by Duncan test (p＜0.05).
Conclusion: Unfilled type of sealant was recommended to use for sound enamel sealing and both in unfilled and nano typed filler contained sealant were recommended to use for sealing on the initical caries lesion, in clinical.
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KEYWORD
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microleakage, penetration, pit and fissure, sealant, preparation
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