A Review on Marginal Deterioration of Composite Restoration

Abstract

Dental treatment procedures are increasingly governed by factors such as biocompatibility of restorative materials, patients demands for esthetics and a conservative approach to minimize loss of tooth structure.G.V Black was the first person to describe the ideal cavity form to restore carious lesions. G.V Black followed " EXTENTION FOR PREVENTION " as ideal principle for cavity preparation.Such classical cavity forms and principles remained appropriate and largely unchallenged for a period of 50 years using Amalgam However amalgam cavities require uniform depth, particular wall forms with excessive tooth damage to ensure retention of amalgam. So patients demand for tooth coloured restoration, with minimal sacrifice of sound tooth structure was increased and it depends mainly on adhesion of the restorative material that provide strong and durable bonding to the remaining sound enamel and dentin . This led to the introduction of aesthetic restorative material known as Composite Resins which has taken dentistry a step closer to the goal.Dental composites are highly cross linked polymeric materials reinforced by a dispersion of glass, crystalline, or resin filler particles and short fibers bound to the matrix by silane coupling agents. The predictors of marginal deterioration has been reviewed in this article.