The effect of thermal and mechanical cycling on bond strength of a ceramic to nickel-chromium (Ni-Cr) and cobalt-chromium (Co-Cr) alloys.
Article
in English
| IMSEAR
| ID: sea-144129
ABSTRACT
Purpose:
This study evaluates the effect of thermo-mechanical cycling (TMC) on the bond strength of a ceramic to three cobalt-chromium (Co-Cr) and two nickel-chromium (Ni-Cr) alloys. Materials andMethods:
One hundred metal-ceramic specimens were prepared. While half of the specimens from each metal-ceramic combination (n = 10) were tested after storage in water at 37°C for 24 hours, the other half were subjected to TMC before testing. The bond strength was evaluated by the flexural strength test according to ISO 96931999 (E) recommendations.Results:
TMC decreased the bond strength of the tested metal-ceramic systems as compared to the water storage (control groups) (P=0.04). Although metal alloys were significantly different from each other in their bond strength with porcelain (P<0.001), the effect of TMC on the various metal-ceramic systems was not significantly different (P=0.99).Conclusion:
It may be concluded that base metal-ceramic bond strength is affected by aging and the effect is relatively the same for all the tested porcelain-metal systems.
Full text:
Available
Index:
IMSEAR (South-East Asia)
Main subject:
Ceramics
/
Chromium Alloys
/
Dental Bonding
/
Metal Ceramic Alloys
/
Coated Materials, Biocompatible
/
Dental Alloys
/
Dental Stress Analysis
/
Hot Temperature
Language:
English
Year:
2012
Type:
Article
Similar
MEDLINE
...
LILACS
LIS