Effect of biscover on the marginal microleakage of composite resin restoration

Young-Gon Cho; Hee-Young Choi

doi:10.5395/JKACD.2005.30.5.355

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Original Article Effect of biscover on the marginal microleakage of composite resin restoration: Young-Gon Cho, Hee-Young Choi; Journal of Korean Academy of Conservative Dentistry 2005;30(5):355-362.
DOI: https://doi.org/10.5395/JKACD.2005.30.5.355
Published online: September 30, 2005

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

Corresponding author: Young-Gon Cho. Department of Conservative Dentistry, College of Dentistry, Chosun University, 421 Seosuk-dong, Dong-gu, Gwangju, Korea 501-825. Tel: 82-62-220-3840, 3845, Fax: 82-62-232-9064, ygcho@mail.chosun.ac.kr

• Received: January 3, 2005 • Revised: February 18, 2005 • Accepted: March 5, 2005

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Abstract
REFERENCES

Abstract

The purpose of this study was to compare the effect on marginal leakage of a resin surface sealant (Biscover) applied before or after polymerization of composite resin to unsealed composite restorations. Thirty Class V cavities with the occlusal margin in enamel and cervical margin in dentin or cementum were prepared on the buccal surfaces of sound extracted molars and restored with a microfilled light-cured composite resin (Micronew). Restorations were randomly assigned into one of three equal groups (n = 10): a control group - no surface sealing, group 1 - applied Biscover after polymerization of the composite resin, and group 2 - applied Biscover before polymerization of the composite resin. Specimens were thermocycled, immersed in a 2% methylene blue solution for 4 hours, sectioned longitudinally, and analyzed for leakage at the occlusal and gingival margins. The results of this study were as follows;

1. In sealed group, group 2 showed higher microleakage than group 1 at both occlusal and gingival margins, but there was no significant difference between two groups (p > 0.05).

2. Unsealed control group showed a little higher microleakage than sealed group at occlusal margins, and a little higher or similar microleakage than sealed group at gingival margins (p > 0.05).

3. Control group and group 2 showed significantly less microleakage at the occlusal margins, but group 1 showed no significantly difference between microleakage at the occlusal and gingival margins.
Keywords: Biscover; Resin surface sealant; Microleakage; Class V cavity; Occlusal margin or gingival margin

REFERENCES

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Table 1

Group classification by application methods of Biscover

Table 2

Distribution of microleakage scores and mean rank at occlusal margins

Table 3

Distribution of microleakage scores and mean rank at gingival margins

Table 4

Statistical analysis of microleakage at occlusal and gingival margins among groups by Mann-Whitney test

NS: No significant differences (p > 0.05)

Table 5

Statistical analysis between microleakage of occlusal and gingival margins in each group by Wilcoxon signed ranked test

S: Microleakage of gingival margins was significant higher than that of occlusal margins (p < 0.05)

NS: No significant differences (p > 0.05)

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Effect of biscover on the marginal microleakage of composite resin restoration

J Korean Acad Conserv Dent. 2005;30(5):355-362. Published online September 30, 2005

DOI: https://doi.org/10.5395/JKACD.2005.30.5.355

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Effect of biscover on the marginal microleakage of composite resin restoration

Table 1

Group classification by application methods of Biscover

Table 2

Distribution of microleakage scores and mean rank at occlusal margins

Table 3

Distribution of microleakage scores and mean rank at gingival margins

Table 4

Statistical analysis of microleakage at occlusal and gingival margins among groups by Mann-Whitney test

NS: No significant differences (p > 0.05)

Table 5

Statistical analysis between microleakage of occlusal and gingival margins in each group by Wilcoxon signed ranked test

S: Microleakage of gingival margins was significant higher than that of occlusal margins (p < 0.05)

NS: No significant differences (p > 0.05)

Table 1 Group classification by application methods of Biscover

Table 2 Distribution of microleakage scores and mean rank at occlusal margins

Table 3 Distribution of microleakage scores and mean rank at gingival margins

Table 4 Statistical analysis of microleakage at occlusal and gingival margins among groups by Mann-Whitney test

NS: No significant differences (p > 0.05)

Table 5 Statistical analysis between microleakage of occlusal and gingival margins in each group by Wilcoxon signed ranked test

S: Microleakage of gingival margins was significant higher than that of occlusal margins (p < 0.05)