Purpose:The reseach is focus on the effect of masticatory movements on the function activity of brain in comparison to the blood flow variety before and after the restoration of free-end edentulous patients with RPD.

• 通过对游离缺失患者可摘局部义齿修复前后咀嚼运动不同时段脑血流变化的测定,探讨咀嚼运动对脑血流的影响。