148例CAD/CAM全二氧化锆冠修复单个后牙随访1年的临床观察  

Clinical observation of 148 cases with CAD/CAM zirconia crowns for single posterior teeth with 1-year follow-up

作　　者：汤雅 周伟[2] TANG Ya;ZHOU Wei(The second outpatient department of Nanjing stomatology hospital,Nanjing Stomatological Hospital,Medical School of Nanjing University,Jiangsu Province,210008,China;Department of Periodontology,Nanjing Stomatological Hospital,Medical School of Nanjing University,Jiangsu Province,210008,China)

机构地区：[1]南京大学医学院附属口腔医院,南京市口腔医院第二门诊部,江苏南京210008 [2]南京大学医学院附属口腔医院,南京市口腔医院牙周病科,江苏南京210008

出　　处：《中国医疗美容》2020年第6期99-103,共5页China Medical Cosmetology

摘　　要：目的根据改良的美国公共卫生服务(USPHS)的标准,从失败或并发症的角度评估单个后牙全二氧化锆冠的临床效果及修复体质量。方法对148例后牙需要全冠修复的患者进行全二氧化锆冠修复,采用改良美国公共卫生服务(USPHS)标准在分别在粘结后3、6、12个月对修复体和基牙进行临床评估,成功标准为A级或B级。结果采用描述性统计和非参数检验进行统计分析。148例患者(平均年龄47.4岁)用148枚全二氧化锆冠修复,修复体无折裂。总体成功率为99.33%。在3、6、12个月的随访检查中,除了一例基牙发生根尖周炎的症状,所有修复体的临床质量良好。结论本研究未发生单牙全二氧化锆冠折裂,成功率高。全二氧化锆冠是修复单个后牙的一种可行的选择。Objective The primary aim of this study was to examine the clinical performance of posterior monolithic single crowns in terms of failure or complications and the secondary aim was to assess the quality of these restorations according to the modified United States Public Health Service(USPHS)criteria.Methods 148 patients with need of posterior crowns were restored with monolithic zirconia crowns.All the restorations were evaluated 3,6 and 12 months after their cementation.The modified United States Public Health Service(USPHS)criteria and periodontal parameters were applied for the clinical evaluation of the crowns.Restorations with Alpha or Bravo rating were considered a success.Results Descriptive statistics and nonparametric tests were used for statistical analysis.148 patients(mean age:47.4)were restored with 148 monolithic zirconia crowns.No fracture of the restorations was recorded.The overall success rate was 99.33%.The clinical quality of all crowns was acceptable except for the periapical periodontitis of one abutment tooth at the follow-up examination.Conclusion In this study,no fracture of single-tooth monolithic crowns occurred and the success rate was high.Monolithic zirconia restorations fabricated is a viable option for the restoration of single posterior teeth.

关 键 词：二氧化锆 全锆冠 CAD/CAM USPHS 成功率 

分 类 号：R783.3[医药卫生—口腔医学]