Changing trends of dental restorative materials.

Esthetic dentistry evolved through advancements in dental materials and techniques. This article cites these trends, particularly the adhesive systems such as dentin bonding agents and polyacrylic acid based materials. In particular, the expanding role of glass ionomer cements is explored with attention to the various formulations and manipulative factors that influence performance. Also, a classification system for composite resins is offered with suggestions for proper selection.