天然牙-种植体联合支持式固定义齿的临床观察

目的:研究天然牙-种植体共同支持式固定义齿的临床疗效。方法:用常规种植手术方法为10例患者植入Replace select种植体11枚,经愈合期后,采用天然牙-种植体支持的金属烤瓷固定义齿修复缺失牙。采用自觉症状、种植体与天然牙的临床动度、X线片、菌斑指数、牙龈出血指数和牙周袋探诊深度作为观察指标,进行为期2年的临床观察。结果:11枚种植体行使功能良好,所有种植体均无松动及种植体周围X线透射影等种植失败症状,种植体周骨降低的均值为(1.0±0.25)mm,其近、远中邻面骨降低值无明显差异(P>0.05);天然牙-种植体支持的烤瓷冠表面多数位点有不同程度的菌斑堆积,黏膜有炎症的位点占所有检测位点的29.5%;种植体所有检测位点的探诊深度均值为(2.4±0.8)mm,天然牙的检测位点的探诊深度均值为(2.3±0.9)mm。结论:天然牙-种植体共同支持式固定义齿修复2年内的临床疗效满意,是一种临床可采用的义齿修复方法。

Clinical Study of Combined Tooth-implant-supported Fixed Dental Prosthesis

Objective:To evaluate the clinical effects of tooth-implant supported fixed dental prosthesis.Methods:11 Replace-select implants were placed in the mandibles of 10 patients.After healing periods,tooth-implant supported fixed dental prothesis were finished.Patients' self-feeling,tooth-implant's clinical mobility,X-ray,plaque index (PLI),suclus bleeding index (SBI),probing depth (PD) were measured during 2 years follow-up.Results:No signs of mobility or peri- implant radiolucencies were observed in any cases.All implants healed well with good functions.The average bone loss adjacent to implants was(1.0±0.25)mm,and there was no difference in bone lose between the distal and medial aspects of the implants(P>0.05).The PLI of the fixed restorations were compared.The prevalencies of peri-implant and peri-tooth mu- cosal inflammation,as indicated by SBI of 1.0 or more,was 29.5%.The average PD of the implants was (2.4±0.8)mm.The average PD of the teeth was (2.3±0.9)mm.Conclusion:The fixed restorations supported by tooth-implant combination were proved to be satisfy by the clinical study of 2 years,and it is a good restore way for the missing teeth patients.