[An 8-year follow-up study of Cerec2 computer aided design and computer aided manufacture of all-ceramic crowns].
OBJECTIVE
To evaluate the clinical performance of the crowns made by Cerec2 computer aided design and computer aided manufacture (CAD/CAM) system.


METHODS
Twenty four teeth were restored with Cerec2 CAD/CAM crowns. Eight years after delivery of the prostheses, the all-ceramic crowns were evaluated using modified standard of California Dental Association quality evaluation system. Patients filled out a satisfaction questionnaire at the same time. And Kaplan-Meier analysis was carried out.


RESULTS
Three out of 24 restorations were rated as failure. Kaplan-Meier analysis showed that the success rate of Cerec2 crowns eight year following delivery was 88%.


CONCLUSIONS
Crowns made by Cerec2 CAD/CAM system can survive in oral condition and function well for 8 years.
Mao
Yong
Y
Department of Prosthodontics, College of Stomatology, The Fourth Military Medical University, Xi'an, China.
Gao
Yuan
Y
Wang
Zhong-Yi
ZY
Gao
Bo
B
Ma
Chu-Fan
CF
Zhang
Shao-Feng
SF
D000328:Adult; D017076:Computer-Aided Design; D003442:Crowns; D003776:Dental Porcelain; D017267:Dental Prosthesis Design; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged
D003776:Dental Porcelain