[Research on the high strength all ceramic crown by the combination of CAD/CAM and glass infiltrated alumina blocks].
OBJECTIVE
To search for a method that fabricates the high strength all ceramic crown by the combination of CAD/CAM and glass-infiltrated alumina.


METHODS
Alumina coping was milled by the Cerec II CAD/CAM and glass was infiltrated into alumina by the capillary effect. Vita alpha ceramic was used to veneer the surface of substructure for all ceramic crown.


RESULTS
This technology need not duplicate die and sinter alumina substructure for 10 h, compared with the conventional In-ceram technology. The time of glass infiltration has been decreased from 4 h to 40 minutes by the high capillary effects of prefabricated alumina blocks.


CONCLUSIONS
This is a new method for all ceramic crown by using Cerec II CAD/CAM to mill a simple ceramic block so as to fabricate prosthetics in clinic.
Zhao
Y
Y
Department of Prosthodontics, School of Stomatology, WCUMS, Chengdu 610041, China.
Luo
X
X
Tian
J
J
Wang
H
H
Zhang
Y
Y
D000537:Aluminum Oxide; D002516:Ceramics; D017076:Computer-Aided Design; D003442:Crowns; D003793:Dental Restoration, Permanent; D003799:Dental Stress Analysis; D005898:Glass; D006801:Humans; D008422:Materials Testing; D013718:Tensile Strength
D000537:Aluminum Oxide