Objective:To evaluate the clinical effects of implant-tooth supported fixed dental prosthesis in posterior region.Method:27 straummer implants were placed in the mandibles of 21 patients.After healing periods, implant-tooth supported fixed dental prosthesis were finished.Patients’self-feeling,implant-tooth’s clinical mobility and X-ray were measured during 6-48 months follow-up.Result:Subjective symptoms of the patients with good,all fixed crown bridge prosthesis were not loose and fall off,27 implants normal exercise masticatory function,implant retention rate was 100%,natural tooth and implant showed no abnormal X-ray transparent shadow.Conclusion:The fixed restorations supported by implant-tooth combination are proved to be satisfy by the clinical study of 6-48 months,and it is a good restore way for the missing teeth patients in posterior region.%目的：评价种植体-天然牙联合固定修复后牙区牙齿缺失的临床效果。方法：21例患者植入straummer种植体27枚，采用种植体-天然牙联合支持的金属烤瓷固定义齿修复缺失牙，并进行临床随访观察6~48个月。根据患者的自觉症状、天然牙及种植体的临床动度、种植体的存留率、义齿修复后种植体周围牙槽骨高度的X线片变化等进行评估。结果：患者的自觉症状良好，所有固定冠桥修复体均无松动、脱落，27枚种植体正常行使咀嚼功能，种植体的存留率为100%，天然牙和种植体周均未见异常X线透影区。结论：种植体-天然牙联合支持固定义齿修复后牙区48个月内的疗效满意，长期临床效果有待于进一步观察。
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