Toggle Main Menu Toggle Search

Open Access padlockePrints

The Newcastle University research output collection, currently available on ePrints, will shortly be moving to a new open repository platform, Figshare. To prepare for the data migration we have paused adding new content to ePrints, and will resume once the new repository is launched. During this time you will continue to have access to ePrints (but no new content will appear). We will share updates here when available.

Two- and three-body wear of dental restorative materials

Lookup NU author(s): Emeritus Professor John McCabe, Dr Sarah Rolland

Downloads

Full text for this publication is not currently held within this repository. Alternative links are provided below where available.

Abstract

Aims: To assess the relationship between 2-body and 3-body wear for a wide variety of dental restorative materials and the suitability of using Relative Dentine Abrasivity (RDA) as a means of judging abrasivity of dentifrice pastes against these materials. Design and methods: 2-body wear tests were performed using steatite ceramic as antagonist. 3-body wear tests were performed using a variety of dentifrice pastes having a wide range of RDA values. Some 3-body tests were combined with an element of acid erosion by conditioning specimens in orange juice (pH 3.8). All tests were performed in vitro. Results and conclusions: RDA was not a reliable indicator of dentifrice abrasivity across the full range of restorative materials. Wear of resin-based materials by toothpastes can loosely be predicted from RDA but the relationship breaks down when glass ionomers are included. There is no relationship between 2- and 3-body wear. Glass ionomers perform badly under 2-body conditions but are quite resistant to 3-body wear. Glass ionomers were the only materials for which acid erosion in orange juice caused a significant increase in the rate of 3-body wear. The rate of 3-body wear was positively correlated with surface roughening.

Publication metadata

Author(s): Rolland SL; McCabe JF; Molyvda S; Rusby S; Carrick TE

Publication type: Article

Publication status: Published

Journal: International Dental Journal

Year: 2002

Volume: 52

Issue: 5

Pages: 406-416

Print publication date: 01/01/2002

ISSN (print): 0020-6539

ISSN (electronic): 1875-595X

Publisher: John Wiley & Sons Ltd.

Share