Orthognathic surgery breaks the primary jaw system and rebuilds the balance of occlusion to improve the mastication and feature.
正颌手术通过打破原有的颌骨系统,重建咬合平衡来达到改善面型和咀嚼功能的目的。
Showing (Age:3)the primary and permanent alternate times, deciduous and permanent teeth in the jaw position within the relationship.
显示了乳恒牙交替时期,乳牙和恒牙在颌骨内的位置关系。