Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Effect of Interfacial Layers on Wear Behavior of a Dental Glass-Ceramic



A Ravikiran, S Jahanmir


Wear studies on a glass-ceramic dental restorative material were performed under two types of lubrication conditions with distilled water. In one set of experiments, the contact interface was continuously flushed with fresh water to remove the wear debris. In a second set of experiments, the water was not replaced during the testing period. Flushing resulted in a lower friction coefficient and more than twice the wear volume compared to the non-flushing condition. Examination of the worn surfaces in SEM confirmed the presence of an interfacial layer at the sliding interface for the non-flushing experiments. These results suggest that the specific conditions at the sliding interfaces and particularly the nature of interfacial layers must be considered when evaluating the tribological performance of ceramics and especially when the wear data from different studies are compared.
Journal of the American Ceramic Society
83 No. 7


ceramics, glass-ceramic, interfacial layers, wear, wear debris


Ravikiran, A. and Jahanmir, S. (2000), Effect of Interfacial Layers on Wear Behavior of a Dental Glass-Ceramic, Journal of the American Ceramic Society (Accessed April 23, 2024)
Created June 30, 2000, Updated October 12, 2021