Computer-assisted design and manufacture of posterior full crowns.
OBJECTIVE
To build an experimental system for the computer-assisted design (CAD) of full crowns and to obtain data for computer-assisted manufacturing (CAM) of full crowns.


METHODS
Three steps are involved in building the system: measuring the prepared tooth, the adjacent mesial and distal teeth, and the opposing teeth by means of digital speckle correlation; reconstructing the shape of the measured teeth; and developing CAD for full crowns. The standard shape of the corresponding tooth was modified to fit the defective tooth on the basis of buccolingual and occlusal-gingival distance as well as the occlusal relationship of the defective tooth.


RESULTS
CAD for full crowns was developed and was obtained for CAM of posterior full crowns.


CONCLUSIONS
The CAD method for full crowns is convenient and economical and can be used for anterior and posterior crown design, copying, and veneer.
Zhang
X
X
Department of Prosthodontics, School of Stomatology, Shanghai Second Medical University (SSMU), P. R. China.
Yang
C
C
Gao
J
J
Ding
Z
Z
D001641:Bicuspid; D017076:Computer-Aided Design; D003442:Crowns; D017267:Dental Prosthesis Design / Q000379:methods*; D006801:Humans; D008963:Molar; D009811:Odontometry