Clinical evaluation of 287 CAD/CAM zirconia ceramic restorations:A 3-year follow up
10.3969/j.issn.1001-3733.2016.03.002
- VernacularTitle:287件 CAD/CAM二氧化锆全瓷修复体3年临床疗效观察
- Author:
Yun ZHAO
;
Shaofeng ZHANG
;
Jing GAO
;
Ling LI
;
Xiaojuan ZHENG
;
Jintao YU
;
Xuewei YANG
- Publication Type:Journal Article
- Keywords:
CAD/CAM;
Zironia;
All ceramic crown;
Cumulative survival rate
- From:
Journal of Practical Stomatology
2016;32(3):308-312
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the clinical performance of CAD/CAM zirconia all-ceramic restorations.Methods:287 all-ce-ramic Zirconia restorations in 206 patients were included in a 3-year prospectively survey with California Dental Association Standard (CDA)as a reference.The effects and the related factors such as restoration type,tooth region,fiber reinforced composite application on survival rate were analyzed.Kaplan-Meier survival analysis and Log-Rank test were used for data analysis.Results:Chipping frac-tures in 5 restorations,intense gingivitis at 4 restorations and periapical inflammation for 3 restorations were observed during the obser-vation period.The 3-year cumulative survival rate (CSR)of CAD/CAMzirconia restorations was 95.7%,The differences among the CSR of single crowns(96.3%),linked crowns (93.6%)and fixed partial dentures(95.7%)were not statistically significant(P >0.05).The difference was not statistically significant(P >0.05)between the CSR of the anterior region group(94.5%)and posterior region group(96.3%)as well as difference(P >0.05)between the CSR of fiber reinforced composite group (95.0%)and without fiber reinforced composite group(96.1%).Conclusion:The cumulative survival rate of CAD/CAM zirconia all-ceramic restorations is high.Chipping fracture is the main reason of failure.Restoration type,tooth region and fiber reinforced composite have no significant effect on the survival of zirconia restorations.
