冠外附着体在游离端牙列缺损修复中的临床应用及近期观察

目的：探讨游离端牙列缺损患者进行冠外附着体义齿修复的临床效果。方法：对18例游离端牙缺失的患者,设计5种冠外附着体作为固位体进行修复治疗。随访1～3年,观察患者对义齿使用的满意情况,复查检查基牙和修复体的情况。结果：患者对冠外附着体义齿的美观非常满意,对义齿的固位稳定效果和咀嚼功能均满意。临床检查未见基牙松动,1年后,出现2例基牙牙龈炎,1例附着体阳性构件松动;2年后,出现2例义齿松动和1例义齿下沉;3年后,出现1例基牙牙龈炎,3例义齿松动和2例义齿下沉。所有出现异常的患者经对症治疗后义齿均能继续使用。结论：对于游离端牙缺失的患者,采用冠外附着体义齿修复可获得良好的临床效果。

Evaluation of Different Extracoronal Attachments on Distal Extension Removable Partial Denture

Objective: To observe the clinical effect of different extracoronal attachments on distal extension removable partial denture.Methods: 23 removable partial dentures using different extraconal attachment were made for 18 patients with distal extension dentition defect.Patients' satisfaction,condition of abutment and prosthesis were observed.The follow-up time ranged from 1 to 3 years.Results: Function,retention and esthetic results of dentures were achieved for all the cases.There was no abutment loosening a...