目的评价冠外附着体义齿修复后基牙牙周的健康状况。
Objective to evaluate the abutment periodontium condition after restored with the distal-extension extracoronal attachment dentures.
前言：目的：探讨铰链式冠外附着体的临床适用范围。
Purpose: the purpose is to discuss the clinical indications of hinge extracoronal attachment.
结论：球帽型附着体与冠外附着体的联合设计形式具有临床实用价值。
Conclusions: Combined design of stud type attachments and extracoronal attachments had practically value in clinical appliance.
结论：套筒冠固位体较冠外精密附着体对基牙牙周影响较小，更有利于基牙牙周组织的健康。
Conclusion: the telescope crown retainer has little influence than the precision attachment retainer to the periodontium of the abutment.
目的：评价一种冠外精密附着体义齿修复牙列缺损的临床效果。
Objective:To evaluate the clinical efficacy of extracoronal precise attachment prosthesis in defect of dentition.
目的：评价一种冠外精密附着体义齿修复牙列缺损的临床效果。
Objective:To evaluate the clinical efficacy of extracoronal precise attachment prosthesis in defect of dentition.
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