Next Article in Journal
Development of Biomedical Polymer-Silicate Nanocomposites: A Materials Science Perspective
Next Article in Special Issue
Properties and Clinical Application of Three Types of Dental Glass-Ceramics and Ceramics for CAD-CAM Technologies
Previous Article in Journal
Advances in Porous Biomaterials for Dental and Orthopaedic Applications
Previous Article in Special Issue
Freeze-Casting of Porous Biomaterials: Structure, Properties and Opportunities
Open AccessArticle

Long Term Fatigue Behavior of Zirconia Based Dental Ceramics

Dental Biomaterials Department, Faculty of Dentistry, Champolion Street, Alexandria University, Egypt
Materials 2010, 3(5), 2975-2985;
Received: 3 February 2010 / Revised: 3 April 2010 / Accepted: 12 April 2010 / Published: 28 April 2010
(This article belongs to the Special Issue Ceramics for Healthcare)
This study evaluated the influence of cyclic loading on zirconia bar-shaped specimens after being subjected to three different surface treatments: particle abrasion with either 50 μm or 110 μm alumina and grinding with diamond points, while polished specimens served as a control. Statistical analysis revealed significant reduction (38-67%) in flexure strength (P < 0.001) after three million cycles of dynamic loading for all surface treatments. Scanning electron imaging revealed grain boundary thickening, grain pull-out, and micro-cracking as the main structural defects. The results suggest that various surface treatments of zirconia based dental ceramics may significantly influence their long term fatigue resistance in the oral environment. View Full-Text
Keywords: surface damage; surface roughness; fatigue; flexure strength surface damage; surface roughness; fatigue; flexure strength
Show Figures

Figure 1

MDPI and ACS Style

Aboushelib, M.N. Long Term Fatigue Behavior of Zirconia Based Dental Ceramics. Materials 2010, 3, 2975-2985.

Show more citation formats Show less citations formats

Article Access Map by Country/Region

Only visits after 24 November 2015 are recorded.
Back to TopTop