Microleakage of Amalgam Restoration with Adhesive Resin Cement Lining, Glass Ionomer Cement Base and Fluoride Treatment

Abstract

The effect of an adhesive resin cement (Panavia) lining in reducing micnoleakage of amalgam restorations with or without a glass ionomer base and fluoride treatment was exarnined. The prepared forty-eight cavities were assigned to 6 groups: amalgam restoration (Group I, control), amalgam restoration with Panavia lining (Group II), amalgam restoration with Lining Cement base (Group III), amalgam restoration with Lining Cement base+Panavia lining (Group IV), amalgam restoration with Lining Cementbase+Ag (NH₃)₂F treatment+Panavia (GrOup V), and amalgam restoration with Ag (NH₃)₂F+Lining Cement+ Panavia (GroupVI). After 100 thermal cycles, the teeth were immersed in 1% methylene blue. The degree of dye penetration was scored and assessed.
The use of Panavia as an adhesive liner (Group II) was effective in reducing microleakage of freshly placed amalgam restorations. The Panavia lining with a Lining Cement base (Group IV) was more effective, and the Panavia lining with the combination of Ag(NH₃)₂F treatment and a Lining Cement base (Group VI) was most effective.