The influence of repeated firings on the remained porcelain rate / 实用口腔医学杂志
Journal of Practical Stomatology
;
(6)2001.
Article
in Chinese
| WPRIM
| ID: wpr-536945
ABSTRACT
Objective:
To study the influence of repeated firings on the PFM bond strength.Methods:
25 specimens of PFM in the diameter of 13.0 mm and thickness of (1.0?0.02) mm were prepared and fired at 920 ℃ for 1, 3, 5, 7 or 9 times(5 samples for each time). The remained porcelain rate(RPR) was measured by Mackert method and used to evaluate the bond strength.Results:
After 3 firings, the RPR of PFM decreased obviously, and additional firings had no obvious effect on the RPR.Conclusion:
3 times firing or more may decrease the bond strength of PFM.
Full text:
Available
Index:
WPRIM (Western Pacific)
Language:
Chinese
Journal:
Journal of Practical Stomatology
Year:
2001
Type:
Article
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