Influence of variation in contact stress on the sliding-wear behaviour of a dental amalgam.
The influence of variation in contact stress on the sliding-water behaviour of a dispersed amalgam has been investigated. The results demonstrate that: (1) the rate of wear of the amalgam in sliding contact with pins fashioned from human enamel remains virtually constant (0.39 +/- 0.06 micrometer/h-1) throughout the range of stresses encountered in vivo; and (2) the wear process involves adhesive transfer of amalgam to the contacting face of the enamel pin during sliding.
D003723:Dental Amalgam; D003743:Dental Enamel / Q000502:physiology; D003799:Dental Stress Analysis; D006801:Humans; D008855:Microscopy, Electron, Scanning; D008954:Models, Biological; D013314:Stress, Mechanical; D014072:Tooth Abrasion
D003723:Dental Amalgam