title: Comparison of techniques for the evaluation of marginal adaptation of amalgam restorations.
abstract: Marginal degradation of amalgam restorations has been evaluated using a direct clinical technique and three indirect clinical assessments. Ratings of the same restorations indicated a fair comparison between the results using the different techniques. Two photographs corresponding to the 'worst Alfa' and the 'best Charlie' in the FDI Recommendation (1977) for clinical comparison of restorative materials are presented.
mesh_terms: D003723:Dental Amalgam; D001840:Dental Bonding; D003793:Dental Restoration, Permanent / Q000379:methods*; D006801:Humans; D013499:Surface Properties
chemical_list: D003723:Dental Amalgam