But the retrusion of alveolar mandible led to chin protrusion. 前颅底和下颌骨发育正常,而下牙槽突代偿性后缩可导致成年腭裂患者的假性颏前突。
The tracings of condylar movement in right and left parasagittal planes during protrusion and retrusion were recorded by computer-aided axiography. 结果:单侧后牙反牙合者前伸后退运动轨迹多不重合,反牙合侧前伸髁道斜度明显大于对侧。
Ramus height and condylar width reduced in the mandibular retrusion group, which was a result of condylar growth inhibition during adolescence. 结果：下颌后缩组的髁突宽度、长度以及升支高度明显较小，说明髁突和升支发育受到抑制。
