总义齿咬合平面定位对最大咬合力的影响

为观察总义齿咬合平面定位设计与患者咀嚼功能的关系，选择１０名无牙颌患者，分别为每个患者各作４副总义齿，其中有一副义齿（标准义齿）的咬合平面以上中切牙近中切角为基准或向后上、或向后下、或向左右方向倾斜５°。测定患者戴各义齿用单侧尽最大力咬合时的力值，发现患者戴标准义齿时平均最大咬合力值显著高于其它义齿。该结果提示：总义齿的咬合平面平分颌间距离且与耳屏鼻翼线平行最有利于无牙颌患者咀嚼功能的发挥

The effects of the orientation of occlusal plane on the maximum bite force in complete denture wearers

In order to reveal the relationship between the orientation of occlusal plane and the mastication function, four complete dentures were made for each of ten edentulous patients.The four dentures for each patient were the same except the orientation of occlusal plane. The plane of the standard dentures was paralyzed to the alae tragus line and was in the middle of the inter ridge distance while that of the experimentals was 5 degree inclined anterior posteriorly or laterally. The maximum bite force was recorded and analyzed in the denture wearers. The bite force in the identical wearer with standard denture was significantly higher than that with the experimental. The results indicate that the plane of the complete denture paralyzing to the alae tragus is favorable for the patient's mastication.