Evaluation of the effect of zirconia all-ceramic fixed dental prostheses designed and manufactured by CAD/CAM in restoration of posterior teeth
- VernacularTitle:CAD/CAM二氧化锆全瓷固定桥的修复效果评价
- Author:
Yong MI
- Publication Type:Journal Article
- Keywords:
CAD/CAM;
Zirconia;
All-ceramic fixed dental prostheses
- From:
Journal of Practical Stomatology
2015;(4):580-582
- CountryChina
- Language:Chinese
-
Abstract:
To observe the 36 months follow-up outcome of zirconia all-ceramic posterior fixed dental prostheses(FDPs)designed and manu-factured by computer aided design and computer aided manufacture (CAD /CAM)from clinical aspect,and to evaluate the success rate of zirconia framework and veneering porcelain.78 patients with less than three teeth lost which had natural opposing teeth were included.A to-tal of ninty-two zirconia all-ceramic FDPs (59 three-unit FDPs,20 four-unit FDPs and 13 five-unit FDPs)were made by CAD /CAM.Three years after cementation of the restorations,the reasons for complication and failure of FDPs in different lengths were analysed.Six FDPs were removed (frame fracture:1;porcelain fracture:1;secondary caries:2;vertical root fractures and post-core fracture after root canal therapy of premolars:2).The success rate of these FDPs was 93.5%.The success rate of zirconia all-ceramic crowns and bridges was higher.Their clinical effect was satisfactory.The main complications of these FDPs were porcelain fracture and de-bonding.
