上颌后牙尽管有适当的外形和接触仍然会发生食物嵌塞。如果邻牙间放置一个修复体使两牙紧密接触,或降低充填式牙尖高度,效果并不满意。下面介绍一种成功的治疗方法。 上颌后牙近远中向的移动是食物嵌塞的主要原因。当患者咬食物时,由于(牙合)干扰引起后牙向远中移动(图1～4)。这样接触打开,食物进入到楔状隙。当放松时,牙齿又回到原位关闭接触,食物就塞在间隙里。这种现象就是由发生在上颌后牙近中斜面上的(牙合)干扰所 Maxillary posterior teeth, although with appropriate shape and contact will still occur food impaction. If the orthodontic placement of a prosthesis between two teeth in close contact, or reduce the height of filling cusp, the effect is not satisfied. Here's a successful treatment. Maxillary posterior teeth moving in the direction of the main reason for food impaction. When the patient bites food, the posterior teeth move distally due to occlusion (Figures 1-4). This contact opens and the food enters the wedge. When relaxed, the teeth are back in place and the food is jammed in the gap. This phenomenon is caused by occlusion of occlusion of the maxillary posterior teeth