Comparative evaluation of marginal microleakage around fluoride containing, traditional, and non-gamma-2 amalgam restorations in vitro

Marginal micro leakage occurring around a fluoride-containing amalgam was evaluated and compared to that occurring around other types of amalgam. Three types of amalgam alloys were studied, a fluoride - containing amalgam [Flour Alloy], a traditional amalgam [Solila Alloy] and a non-gamma-2 amalgam [Luxalloy]. Micro leakage was evaluated in vitro using a standardized class V restorations and dye penetration. Micro leakage scores were recorded after two days, two, four, and six months of storage in phosphate buffered saline[PH=6].The results of this study indicated that the sealing properties of fluoride containing amalgam were superior to that of the non-gamma-2 amalgam. However, the addition of fluoride to the amalgam alooy did not improve its sealing ability compared to that of the traditional amalgam