Comparison of Micro Leakage after Pit and Fissure Sealing by Preparation Form of Early Caries Lesion
이은희, 신우용, 복혜정, 이은경,
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이은희 ( Lee Eun-Hee ) - Dankook University Graduate School of Public Health & Social Welfare Department of Oral Health
신우용 ( Shin Woo-Young ) - Dankook University Graduate School of Public Health & Social Welfare Department of Oral Health
복혜정 ( Bok Hye-Jeong ) - Busan Women’s College Department of Dental Hygiene
이은경 ( Lee Eun-Kyoung ) - Busan Women’s College Department of Dental Hygiene
KMID : 1157520110070030141
Abstract
Objective: The purpose of this study is to compare micro leakage and penetration depths of after sealing by preparation form of early caries lesion.
Methods: 40 of extracted premolars were divided into 4 groups after using by fissurotomy bur and a 1/2 round bur. Half of teeth in each were sealed with unfilled sealant and the other half were sealed with filled sealant. All of the teeth were thermocycling and immersed in methylene blue. Each tooth was sectioned and observed by using a stereoscopic microscope.
Results: 1. Comparison of fissure penetration of each of the experimental results did not differ between the groups, but showed higher overall penetration (p＞0.05). 2. It showed significantly higher micro leakage scores in group IV (p＜0.05), followed by group I, II, III, but no significant (p＞0.05).
Conclusion: Based on the results of this study, preparation of the fissure form of sealant penetration and micro leakage significant difference were not found. But according to the containing of filler in sealant, there were significant differences in micro leakage. It is considered to use filled sealant which is remarkable abrasion resistance and thermal expansion coefficient is similar to tooth, because sealant is expanded as much as the space of prepared fissure when teeth is sealed by preparation form of early caries lesion.
키워드
micro leakage; sealant; preparation form; early caries lesion
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