...体会 关键词]精密附着体修复；重度磨耗；牙合垫式过渡性修复；咬牙合重建 [gap=988]Key words:precision attachments prostheses; severe dental attrition; transitional bite plate; occlusal reconstraction ..
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结论：精密附着体修复对于牙列缺损伴重度磨耗患者是一种有效的方法。
Conclusion Precision attachments prostheses are effective methods of dentition defect accompanied with severe dental attrition.
目的同一类病例应用不同精密附着体修复，对其修复效果进行观察，为临床应用提供参考依据。
OBJECTIVE Different accurate attachments were applied to the same kind of case and the effect was observed so that reference is offered to clinical selection.
目的：通过建立有限元模型，探讨按扣式和键槽缓压式两种精密附着体修复下颌磨牙游离缺失的应力分布情况。
Objective:The purpose of this study was to analyze the force system of different precision attachment in mandible distal-extension edentulous by the finite-element model.
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