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目的:比较CAD/CAM氧化锆及Empress全瓷冠修复3年的临床效果。方法:选择350例患者共838个全冠修复体(其中CAD/CAM氧化锆全冠428颗、Empress铸瓷全冠410颗),平均观察期36.2±5月,随访检查基牙和修复体情况,分别对两组全瓷冠的存留率和修复成功率进行统计学分析。结果:观察期内共有41颗全瓷冠(19颗为氧化锆,22颗为Empress铸瓷)完全失败,需重新制作。氧化锆全瓷冠和Empress铸瓷全冠的存留率分别为95.1%和95.8%,成功率分别为90.7%和91.2%,其差异均无统计学意义。结论:CAD/CAM氧化锆和Empres铸瓷全冠均能满足临床需要,有较好的修复效果。
Objective: To compare the clinical effects of CAD / CAM zirconia and Empress all-ceramic crowns for 3 years. Methods: A total of 838 coronal prostheses (including 428 CAD / CAM zirconia crowns and 410 Empress porcelain crowns) were selected from 350 patients. The mean observation period was 36.2 ± 5 months. The abutments and prostheses were followed up , Respectively, the two groups of all-ceramic crown retention and repair success rates were analyzed. Results: During the observation period, a total of 41 all-ceramic crowns (19 zirconia and 22 Empress porcelain) failed completely and had to be reworked. Survival rates of zirconia all-ceramic crowns and Empress cast crowns were 95.1% and 95.8%, respectively, with success rates of 90.7% and 91.2%, respectively, with no significant difference. Conclusion: The CAD / CAM zirconia and Empres cast crown can meet the clinical needs, have a good effect of repair.