title: The influence of proximal retention grooves on the retention and resistance of class II preparations for amalgams.
abstract: The addition of proximal retention grooves to various designs of the Class II cavity preparation considerably improves the retention and resistance characteristics of amalgam restorations. The incorporation of proximal grooves should reduce the necessity for gross outline form as a means of gaining adequate retention adn resistance in the Class II preparation.
mesh_terms: D003723:Dental Amalgam; D003737:Dental Cavity Preparation / Q000379:methods*; D006801:Humans; D013314:Stress, Mechanical
chemical_list: D003723:Dental Amalgam