J Korean Acad Conserv Dent.  2002 Sep;27(5):493-501. 10.5395/JKACD.2002.27.5.493.

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

• Cho YG
• Cho KC

• KMID: 1987306
• DOI: http://doi.org/10.5395/JKACD.2002.27.5.493

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 5degrees C and 55degrees C. 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).

Keyword

Marginal microleakage; Self-etching primer adhesives; Self-etching adhesive

MeSH Terms

Adhesives
Dental Enamel
Dentin
Humans
Methacrylates
Methylene Blue
Molar
Resin Cements
Tooth
Water
Adhesives
Methacrylates
Methylene Blue
Resin Cements
Water

Figure

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  Fig. 1 Numbers of leakage scores of each group at enamel margins

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  Fig. 2 Numbers of leakage scores of each group at dentin margins

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