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目的观察Locator种植覆盖义齿在修复牙列缺失病例的临床效果并探讨种植失败的原因。方法对2010年1月1日至2013年12月31日的58例Locator附着体支持的种植覆盖义齿病例(种植体共计222颗)进行回顾性研究。在一期手术后待骨结合完成,安装Locator附着体,加力至30Ncm,制作全口义齿,均调牙合至平衡牙合的状态。随访1~5.5年,行放射学检查、满意度调查、对颌牙状况检查、记录基台附件的使用情况等信息,对其结果进行统计学分析,初步分析种植体出现失败的原因。结果 222颗种植体中有8颗出现失败。在失败样本量中男女、上下颌、近远中比例分别为5:2、7:1、1:7。対颌牙为天然牙组和种植覆盖义齿组有着较高的失败率。结论 Locator种植覆盖义齿是一种长期有效的无牙颌修复方式,上颌种植覆盖义齿相对于下颌者有着较高的失败率。
Objective To investigate the clinical effect of Locator implant overdenture in repairing the cases of dentition defect and to explore the causes of implant failure. Methods A retrospective study was conducted on 58 cases of implant overdentures supported by Locator attachment (total of 222 implants) from January 1, 2010 to December 31, 2013. In a period of surgery to be completed after bone union, install Locator attachment, afterburner to 30Ncm, making full denture, are adjusted to balance the state of occlusal occlusion. Follow-up 1-5.5 years, radiography, satisfaction survey, check the condition of the maxillary teeth, record the use of the abutment and other information, the results were statistically analyzed, the initial analysis of implant failure reasons. Results Eight out of 222 implants failed. In the failed sample size, male and female, upper and lower jaw, the ratio of near and far were 5: 2,7: 1,1: 7. Maxillary teeth for the natural tooth group and planting overdenture group has a higher failure rate. Conclusion Locator implant overdenture is a long-term and effective method of edentulous jaw repair. The maxillary implant overdenture has higher failure rate than mandibular.