内侧脚则通过它们与鼻中隔尾侧端的弹力纤维连接，两内侧脚之间及与上颌骨前区之间靠软组织支撑。
The medial crura are supported by their elastic fibrous attachments to the caudal septum and the soft tissue interposed between their feet and the premaxillary area.
目的：探讨上颌前部阶段性骨切开术联合正畸治疗上颌前突的方法。
Objective to evaluate the effect of anterior maxillary segmental osteotomy (AMSO) combined with orthodontic treatment for maxillary protrusion.
方法：在上颌窦前壁设计一个活门式蒂在上方的骨膜骨瓣。
Method; a periosteal trapdoor bone flap was made in the facial wall of maxillary sinus.
方法测量11例骨性下颌前突伴偏斜患者治疗前模型，将上颌腭中缝作为中线标准，测量牙弓两侧同名牙接触点到腭中缝的距离，观测牙弓的对称性。
Methods Measurement of 11 dental models was performed, midline of palate was defined as central line, the distance of every contact point to the midline was measured in each side.
重建上颌骨前壁：术中先带蒂翻揭上颌窦前壁骨片，术毕复回原位固定。
Reconstruction of the anterior wall of the maxilla: overturned the bone of the anterior wall of maxillary sinus with pedunculus firstly and reduced after the operation.
我们拥有的是上颌的尖端，这是一种叫做前颌骨的骨头；还有一个保藏在牙槽里的、破碎的牙齿。
All we have is the tip of the upper jaws -bones called the premaxillae, and a broken tooth preserved in one socket, "said Dr Martill."
我们拥有的是上颌的尖端，这是一种叫做前颌骨的骨头；还有一个保藏在牙槽里的、破碎的牙齿。
All we have is the tip of the upper jaws -bones called the premaxillae, and a broken tooth preserved in one socket, "said Dr Martill."
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