In Vitro Wear Response of Composite Resin, Amalgam, and Enamel

Abstract

A two-body, wear-testing method was developed and the test results were used for comparing and ranking the rate of wear for an amalgam, an experimental composite resin, and a commercial composite resin. The ranking of wear found by this method was the same as that shown by clinical research for the rate of wear of amalgam and commercial composite resin.

Materials Science Acceleration of Corrosion of Dental Amalgam by Abrasion

“…Wet-ground-only specimens were used in the tests reported here. The speed of the motor (20 rpm) and the distance from the center were chosen to obtain the average linear velocity of the pads on the specimen surfaces of 1.6 cm/sec, which approximates the average sliding rate on teeth during mastication (Powell et al, 1975). Although several materials and pressures were tried, the results reported here are for pads made of soft leather and a pressure of 0.5 MPa.…”

An Abrasion Test for Composite Resins

“…In tests of the "two-body" type, [10][11][12] Received for publication March 5, 1979 Accepted for publication July 2, 1979 a hard slider abrades the specimen. Using an enamel slider, Powell et al12 showed that, with this principle, it was possible to obtain the right ranking of wear between an amalgam and a composite resin.…”

Influence of Contact Stress, Sliding Velocity, and Surface Roughness on the Sliding Wear of a Composite Restorative

“…International Conference on "Factors and Mechanisms Influencing Bone Growth" To be held at UCLA, Los Angeles, California, January [5][6][7]1982 A primary objective of the conference is to update and integrate our understanding of the growth of bone with new knowledge and to offer directions for future research. The contents will cover factors and mechanisms which influence both prenatal and postnatal growth and development of bone, both general and craniofacial, from the subcellular to the gross level.…”