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VOLUME 5 , ISSUE 4 ( November, 2004 ) > List of Articles

RESEARCH ARTICLE

Flowable Composites as “Filled Adhesives:” A Microleakage Study

Luis Guilherme Sensi, Fabiano Carlos Marson, Sylvio Monteiro, Luiz Narciso Baratieri, Mauro Amaral Caldeira de Andrada

Citation Information : Sensi LG, Marson FC, Monteiro S, Baratieri LN, de Andrada MA. Flowable Composites as “Filled Adhesives:” A Microleakage Study. J Contemp Dent Pract 2004; 5 (4):32-41.

DOI: 10.5005/jcdp-5-4-32

License: CC BY-NC 3.0

Published Online: 00-11-2004

Copyright Statement:  Copyright © 2004; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Objective

The purpose of this in vitro study was to investigate the microleakage at dentin margins of a flowable resin composite associated with an adhesive, either light cured separately or co-cured, in Class V cavities.

Materials and Methods

Twenty four recently extracted human molars were prepared with standardized boxshaped Class V cavities of 3.0 mm (mesial-distal), 2.0 mm (occlusal-gingival), and 2.0 mm depth with margins located on enamel and dentin/cementum on the buccal or lingual surfaces. The cavities were randomly assigned into three groups (n=8): Group I – Single Bond + Filtek Z250 (control); Group II – Single Bond + Filtek Flow (light cured separately) + Filtek Z250; and Group III – Single Bond + Filtek Flow co-cured (light cured simultaneously) + Filtek Z250. After being immersed in tap water for 24 h, the specimens were thermocycled (1000x, 5°-55°C, 30 sec dwell time) and immersed in a 0.5% basic fuchsine solution for 24 h. The restorations were sectioned longitudinally and gingival margins were evaluated for microleakage using a 0-4 scale. Data were subjected to the Kruskal-Wallis test at p<0.05.

Results

A statistically significant difference at p = 0.0044 between Groups 1 and 3 and Groups 2 and 3 was observed. Although Group 2 performed slightly better than Group 1, no significant difference was observed.

Conclusion

The use of a flowable resin composite cured simultaneously with an adhesive yielded the worst results in this study. As no statistical differences were seen between Groups 1 and 2, the use of a flowable composite as a means of minimizing microleakage at dentin margins may be questioned.

Citation

Sensi LG, Marson FC, Monteiro S Jr., Baratieri LN, de Andrada MAC. Flowable Composites as “Filled Adhesives:” A Microleakage Study . J Contemp Dent Pract 2004 November;(5)4:032-041.


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