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目的 通过对戴用杆式附着体及双套冠式覆盖义齿患者的咀嚼功能进行研究， 为合理地进行覆盖义齿的设计提供理论依据。方法 选择十名适宜患者进行利用杆式附着体或双套冠技术增加固位的覆盖义齿修复，然后通过咀嚼效率的测定、咀嚼运动轨迹的描记、肌电图检查、义齿固位力的测试等手段， 对覆盖义齿修复后患者的咀嚼功能进行观察， 同时与其他学者报告的总义齿测试结果进行对比。结果 杆式附着体及双套冠式覆盖义齿恢复咀嚼功能好于普通总义齿。结论 杆式附着体及双套冠式覆盖义齿是一种理想的修复形式。
Objective To study the mastication function of patients wearing rod-shaped attachment and double-crown-shaped overdentures to provide a theoretical basis for the reasonable design of overdenture. Methods Ten patients were enrolled in this study. They were repaired with the overdenture whose position was increased by rod attachment or double crown technique. Then the measurement of masticatory efficiency, the trace of the chewing motion, the EMG test, the denture retention test Means to observe the masticatory function of the patients after overdenture repair, and to compare with the total denture test results reported by other scholars. Results The results showed that the mandibular attachment and the double crown overdenture restored the masticatory function better than the general denture. Conclusion The rod attachment and two sets of crown overdentures are an ideal repair form.