Microleakage of 2-step adhesive systems in diamond-prepared cavity.
10.5395/JKACD.2007.32.5.437
- Author:
Myung Goo LEE
1
;
Kwon Hwan CHO
;
Young Gon CHO
Author Information
1. Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea. ygcho@chosun.ac.kr
- Publication Type:Original Article
- Keywords:
Microleakage;
2-step adhesive systems;
Class V cavities;
Diamond points;
Dentinal margin
- MeSH:
Adhesives*;
Dental Enamel;
Dentin;
Diamond;
Methylene Blue;
Molar
- From:Journal of Korean Academy of Conservative Dentistry
2007;32(5):437-444
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
The purpose of this study was to compare the marginal microleakage of different 2-step adhesive systems in Class V cavities prepared with different diamond points. Forty Class V cavities were prepared with two different (coarse or fine) diamond points on cervical third of extracted molars. The occlusal and gingival margin of cavities was located in enamel and dentin, respectively. They were divided into one of four equal groups (n = 10) and ; Group 1-prepared with coarse diamond point (EX-41), restored with Single Bond and Z 250, Group 2-prepared with fine diamond piont (TF-21F), restored with Single Bond and Z 250, Group 3-prepared with coarse diamond point (EX-41), restored with Clearfil SE Bond and Clearfil AP-X, Group 4-prepared with fine diamond point (TF-21F), restored with Clearfil SE Bond and Clearfil AP-X. Specimens were thermocycled, immersed in a 2% methylene blue solution for 24 hours, and bisected longitudinally. They were observed leakages at enamel and dentinal margins. Data were analyzed using Mann-Whitney and Wilcoxon signed ranked test. In this study, marginal microleakage of Single Bond was not affected by type of diamond points. But Clearfil SE Bond showed higher marginal microleakage at both enamel and dentinal margin when Class V cavity was prepared with coarse diamond point.
