Wear of dimethacrylate resins used as the matrix phase in dental restorative composites was characterized by two-body abrasion and singlepass sliding. Ranking of the resins was obtained by both tests. Two resins that had low values of tangential force and track width also showed relatively ductile modes of surface failure for the normal loads tested. A monomethacrylate fluorine-containing resin did not show improved wear properties by these methods of testing.
Bibliographical noteFunding Information:
This investigation was supported in whole by USPHS Research Grant DE-03416 from the National Institute of Dental Research, National Institutes of Health, Bethesda, Md. 20014.