title: Assessment of variables in clinical studies of amalgam restorations.
abstract: Marginal degradation of two amalgams with different creep properties was studied as a function of clinical variables. The amalgam with the highest creep values showed the most marked marginal degradation, irrespective of operator, doubling of the trituration time, and the use of contralateral, opposing, or unrelated teeth for comparison.
mesh_terms: D003723:Dental Amalgam; D003737:Dental Cavity Preparation; D003793:Dental Restoration, Permanent; D005069:Evaluation Studies as Topic; D006801:Humans; D013314:Stress, Mechanical; D013499:Surface Properties; D013997:Time Factors
chemical_list: D003723:Dental Amalgam