[Study on the compatibility of slip casting aluminous ceramic crowns]
One of the key factors for a good slip casting aluminous ceramic crown is good compatibility between its core material and the veneering porcelain.The chemical and thermal compatibility of two slip casting aluminous ceramic crown systems(In-Ceram and GI-I) were investigated by means of SEM and EDAX,thermal shock tests were also performed to evaluate the crazing resistance.The results showed: the crazing resistance of In-Ceram was 158 degrees centigrade,and that of GI-I was degrees centigrade;there existed tightly bonded interfaces between the slip casting aluminous ceramic cores and the veneering porcelains in both of the two systems,where ion transferences were found.The results also suggested good compatibility of the two slip casting aluminous ceramic crown systems.
Wan
Q B
QB
Department of Prosthodontics, Ninth People's Hospital, School of Stomatology, Shanghai Second Medical University. Shanghai 200011,China.
Xue
M
M
You
L
L
Du
C S
CS
Chao
Y L
YL