title: Treatment time analysis for extensive amalgam restorations.
abstract: The treatment times for the fabrication of Extensive Amalgam Restorations (EAR) as recorded in a longitudinal clinical trial at the Dental School in Nijmegen were analyzed. 269 EAR's with different retention methods were made on molars by three operators. A mean total treatment time of 60 min was found. The factor operator had a significant influence on all treatment phases resulting in a 26% difference in total treatment time between operators. Also significant influences were found in some treatment phases for the factor retention, side location of the tooth and extension of the restoration. The results of this study with regard to treatment times must be considered from the perspective of the quality of the care provided.
mesh_terms: D003723:Dental Amalgam; D003772:Dental Pins; D003775:Dental Polishing; D003793:Dental Restoration, Permanent / Q000379:methods*; D006801:Humans; D007568:Jaw; D008137:Longitudinal Studies; D011897:Random Allocation; D013997:Time Factors; D014070:Tooth
chemical_list: D003723:Dental Amalgam