|
KMID : 1157520110070030141
|
|
International Journal of Clinical Preventive Dentistry
2011 Volume.7 No. 3 p.141 ~ p.147
|
|
|
Comparison of Micro Leakage after Pit and Fissure Sealing by Preparation Form of Early Caries Lesion
|
|
Lee Eun-Hee
Shin Woo-Young
Bok Hye-Jeong
Lee Eun-Kyoung
|
|
|
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.
|
|
|
KEYWORD
|
|
|
micro leakage, sealant, preparation form, early caries lesion
|
|
|
FullTexts / Linksout information
|
|
 
|
|
|
Listed journal information
|
|
|