方法：15例动脉内注红色乳胶的头颈部标本，解剖双侧面动脉发出至口角外上方、颧弓下方颊区内的直接皮支，测量皮支的外径、长度。
Methods: 15 cadavers perfused beforehand with red latex were dissected to separate the direct buccal cutaneous branch of facial artery. The diameter and length of the cutaneous branch were measured.
为探索混合式直丝弓矫治器治疗前牙反牙合的有效性，采用磨牙颊面管和双尖牙托槽固定在牙合垫的颊面，使牙合垫和直丝弓矫治器合二为一而成混合式直丝弓矫治器。
In order to explore the effect of the compound straight wire appliance on the correction of anterior cross-bite, molar buccal tubes and bicuspid brackets were fixed in the buccal side of occlusal pad.
目的观察直丝弓矫治器对双牙弓前突病例的矫治效果。
Objective To observe the results of treatment with Straight Wire Appliance(SWA) in bimavillary alarch protrusion cases.
方法选择拔除4颗第一双尖牙的患者2 0例，采用方丝弓技术治疗。
Methods 20 subjects were chosen with 4 first premolars extraction based on diagnosis.
方法选择拔除4颗第一双尖牙的患者2 0例，采用方丝弓技术治疗。
Methods 20 subjects were chosen with 4 first premolars extraction based on diagnosis.
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