In vitro evaluation of the marginal microleakage of amalgam restorations associated with dentin adhesive, glass ionomer cement and cavity varnish by means of different evaluation methods

• Published in: Journal of applied oral science 2005-03, Vol.13 (1), p.10-14
• Main Authors: Hoshi, Adriano Tomio, Silva, Salete Moura Bonifácio da, Pavarini, Aymar
• Format: Article
• Language: English
• Subjects: DENTISTRY, ORAL SURGERY & MEDICINE
• ISSN: 1678-7757; 1678-7765; 1678-7757
• DOI: 10.1590/S1678-77572005000100003

This in vitro study evaluated the marginal microleakage of amalgam restorations associated with the cavity varnish Copalite - Cooley & Cooley (GI-CP), dentin adhesive OptiBond Solo - Kerr (GII-OS) and the glass ionomer cement Vitremer - 3M (GIII-VT). Forty-five premolars were employed, which were submitted to independent class II preparations at the mesial and distal aspects comprising the marginal ridges and were restored with Dispersalloy - Dentsply. Afterwards, the teeth were thermocycled and stored in 0.5% basic fuchsine for 24 hours. The evaluations were conducted on a light microscope with 150x magnification and on the Sigma Scan software with employment of a single line and segmented lines. Data analysis allowed to establish that none of the materials was able to eliminate the marginal microleakage, having the GI - CP presented greater and statistically significant values in relation to the other groups in all evaluation methods (p