The Journal of Contemporary Dental Practice

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VOLUME 8 , ISSUE 7 ( November, 2007 ) > List of Articles

RESEARCH ARTICLE

Effect of a Resin-based Desensitizing Agent and a Self-etching Dentin Adhesive on Marginal Leakage of Amalgam Restorations

Samin Alavi, Marjaneh Ghavamnasiri, Mohammad Alavi

Citation Information : Alavi S, Ghavamnasiri M, Alavi M. Effect of a Resin-based Desensitizing Agent and a Self-etching Dentin Adhesive on Marginal Leakage of Amalgam Restorations. J Contemp Dent Pract 2007; 8 (7):54-61.

DOI: 10.5005/jcdp-8-7-54

License: CC BY-NC 3.0

Published Online: 01-11-2007

Copyright Statement:  Copyright © 2007; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The purpose of this study was to compare the marginal leakage of Class II amalgam restorations whose preparations were lined with a resin-based desensitizing agent, a self-etching adhesive system, and copal varnish.

Methods and Materials

Fifty-six freshly extracted human premolar teeth were divided into four groups. A Class II preparation was prepared with only a proximal box on the mesial and distal surfaces of each tooth. The cavities in one group were lined with a desensitizing agent (VivaSens™) and a second group with an adhesive (Clearfil S3 Bond™). A third group was lined with copal varnish (Copalite™) and a fourth group was used as the control without any cavity liner. Spherical high copper amalgam was hand-condensed into each preparation, specimens were thermocycled, stained, and sectioned. Microleakage was graded using a stereomicroscope. Microleakage scores were calculated and analyzed using the Kruskal Wallis and the Mann-Whitney tests (α=0.05).

Results

Less microleakage was indicated with the VivaSens™ liner when compared with the other groups (P<0. 05). Clearfil S3 Bond™ showed less microleakage than the control group (P<0.05), but the leakage with copal varnish and Clearfil S3 Bond™ was similar (P>0.05).

Conclusion

VivaSens™ reduced the microleakage of Class II high copper amalgam restorations significantly more than the Clearfil S3 Bond™ and copal varnish.

Citation

Ghavamnasiri M, Alavi M, Alavi S. Effect of a Resin-based Desensitizing Agent and a Self-etching Dentin Adhesive on Marginal Leakage of Amalgam Restorations. J Contemp Dent Pract 2007 November; (8)7:054-061.


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