Marginal microleakage of self-etching primer adhesives and a self-etching adhesive

Young-Gon Cho; Kong-Chul Cho

doi:10.5395/JKACD.2002.27.5.493

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Cho and Cho: Marginal microleakage of self-etching primer adhesives and a self-etching adhesive

Original Article

Journal of Korean Academy of Conservative Dentistry

Journal of Korean Academy of Conservative Dentistry 2002; 27(5): 493-501.

Published online: 30 September 2002

DOI: https://doi.org/10.5395/JKACD.2002.27.5.493

Marginal microleakage of self-etching primer adhesives and a self-etching adhesive

Young-Gon Cho, Kong-Chul Cho

Department of Conservative Dentistry, College of Dentistry, Chosun University, Korea.

(open-access):

This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

This study evaluated the microleakage performance of four self-etcing primer adhesives(Clearfil SE Bond, Clearfil Liner Bond 2, UniFil Bond, and FL Bond) and one self-etching adhesive(Prompt L-Pop). Class V cavity preparations with occlusal margins in enamel and gingival margins in dentin were prepared on both buccal and lingual surfaces of 50 extracted human molar teeth. Prepared teeth were randomly divided into five groups and restored using one of five adhesives and composite resins: Prompt L-Pop/Filtek Z 250(Group 1), Clearfil SE Bond/Clearfil AP-X(Group 2), Clearfil Liner Bond 2/Clearfil AP-X(Group 3), UniFil Bond/UniFil F(Group 4), and FL Bond/Filtek Z 250(Group 5).

Following one day storage in room temperature water, the restored teeth were thermocycled for 500 cycles between 5℃ and 55℃. Marginal microleakage was assessed by dye penetration using 2% methylene blue dye. After 24 hours, the teeth were sectioned longitudinally and evaluated for microleakage under steromicroscope. The data were statistically analysed by Kruskal-Wallis Test, Mann-Whitney and Wilcoxon signed ranked tests.

The results of this study were as follows;

1. The microleakges at both enamel and dentinal margins were the lowest in group 4, increasing among groups in the following order: group 2, follwed by group 5, follwed by group 1, and the highest in group 3.

2. At the enamel margins, the microleakage of group 3 was significantly higher than those of groups 2, 4 and 5(p<0.05), and also the microleakage of group 1 was statistically higher than those of groups 2 and 5(p<0.05).

3. At the dentinal margins, microleakage of group 3 was significantly higher than microleakages of groups 1, 2, 4 and 5(p<0.05).

4. Compared with microleakages between the enamel and dentinal margins of each group, groups 1, 4 and 5 at enamel margin and group 2 and group 3 at dentinal margin were higher microleakage. But there was no significant difference between enamel and dentinal microleakages of each group(p>0.05).

Keywords: Marginal microleakage, Self-etching primer adhesives, Self-etching adhesive

Figures and Tables

Fig. 1

Numbers of leakage scores of each group at enamel margins

Fig. 2

Numbers of leakage scores of each group at dentin margins

Table 1

Group classification and self-etching primer adhesives and self-etching adhesive/composite resins used in this study

^*: Manufacturers of adhesive and composite resin are not same in Group 5.

Table 2

Distribution of microleakage scores and means at enamel margins

Table 3

Distribution of microleakage scores and means at dentin margins

Table 4

Statistical analysis of microleakage at enamel margin between each group by Mann-Whitney test

^*: significant differences (p<0.05)

Table 5

Statistical analysis of microleakage at dentin margin between each group by Mann-Whitney test

^*: significant differences (p<0.05)

Table 6

Statistical analysis of microleakage at enamel and dentin margin between each group by Wilcoxon signed rank sum test

-: no-significant differences(p>0.05)

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