A study of the interfacial area of auro-galvano-form ceramic crowns
- VernacularTitle:金沉积烤瓷冠金瓷界面的研究
- Author:
Lei JIN
;
Zhongyi WANG
;
Xunke LI
- Publication Type:Journal Article
- Keywords:
Metal ceramic restoration;
Auro galvano form;
Inte rface;
Electron probe;
Coefficient of thermal expansion
- From:
Journal of Practical Stomatology
2001;0(01):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To study the ionic diffusion and the distri bu tion character in the interfacial area of aurogalvano form ceramic crown, and t o discuss the bond mechanism of porcelain fused to 99.9% gold. Method s: The ionic diffusion and the distribution character in the interfac ial area of aurogalvano form ceramic crown were observed by electron probe and scanning electron microscope. Results: The examination wit h electron microprobe showed that from gold to porcelain aluminum ascended from zero to peak value, aurum dropped from the peak value to zero, and the bandwidt h was about 3～4 ?m.There were obvious mechanical table and tuber. C onclusion: There is ionic diffusion and no crack in the interfacial a rea;there are physical and chemical combinations between porcelain and 99.9% gol d.
