The Generations of Enamel-Dentin Bonding Agents: An Update

Abstract

Adhesive dentistry has a revolution in restorative dental practice during the past 50 years. Contemporary restorations are replaced by adhesive materials completely. Improved resin-based composite restorations are more reliable and long-standing.

In addition, techniques are more conservative which depends less on mechanical retention and removal of un-supported enamel. The purpose of the article is to offer a concise, comprehensive, and an update on seventh-generation bonding agent. Moreover, the dental bonding agents evolved from total-etch (fourth- and fifth-generation) to the more recent self-etch systems(sixth- and seventh-generation). The present article is based on the review of literature and companies researches.

Key words: All-in-one, Enamel and dentin bond strength, Hybrid layer, Self-etch, Seventh generation, Smear layer