Compared study of cyclic fatigue behaviors in two kinds of dental ceramic layers structures / 华西口腔医学杂志
West China Journal of Stomatology
;
(6): 166-172, 2007.
Article
in Chinese
| WPRIM
| ID: wpr-348073
ABSTRACT
<p><b>OBJECTIVE</b>To compare the difference in strength degradation and morphology damage of two dental ceramic materials after Hertzian contact cyclic fatigue.</p><p><b>METHODS</b>Hertzian contact technique was used to investigate the response of Empress II glass ceramic and GI- II glass-infiltrated alumina ceramic to cyclic fatigue. Critical loads of specimens after different fatigue cycles were recorded.</p><p><b>RESULTS</b>For Empress II glass ceramic, critical load had significantly difference between specimens after 10(5) cycles loading. No significant difference of critical load was found in GI- II glass-infiltrated alumina ceramic after cycles loading.</p><p><b>CONCLUSION</b>GI- II glass-infiltrated alumina ceramic has better capability in resistance to cyclic loading. It may attribute to microstructure of material. Empress II glass ceramic shows a brittle damage model.</p>
Full text:
Available
Index:
WPRIM (Western Pacific)
Main subject:
Materials Testing
/
Ceramics
/
Dental Porcelain
/
Aluminum Oxide
/
Aluminum Silicates
/
Glass
Limits:
Humans
Language:
Chinese
Journal:
West China Journal of Stomatology
Year:
2007
Type:
Article
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