遵循健康矫治是要使牙齿在生理范围内进行移动，这不仅利于牙体牙周组织的健康，对正畸长期的稳定性也具有重要意义。临床上采用CBCT进行三维的精确测量，可确定基骨厚度、软组织形态等等，以设计相应的方案选取不同的托槽数据达到健康矫治的目标，有效防止骨开窗、骨开裂等医源性损伤。骨性II类安氏II类1分类在错颌畸形中常见，当骨性畸形不严重时，掩饰性治疗内收唇倾的切牙改善前突的侧貌时，需要确定唇侧骨厚度，而严重骨性畸形需正畸-正颌联合治疗时，通过测量牙槽骨边界数据，清楚去代偿界限，利于术后长期稳定及美观。大量的研究表明，临床医生对此重视程度增加并发现不同垂直骨面型切牙区骨量存在差异且有规律可循，且切牙位置角度也与侧貌息息相关，故本文意对切牙区的垂直向控制及侧貌改善作出综述。

Following the healthy orthodontic treatment is to make the teeth move in the physiological range, which is not only beneficial to the health of periodontal tissues of teeth, but also of great significance to the long-term stability of orthodontics. In clinic, CBCT can be used to measure three-dimensional accurately, which can determine the thickness of the base bone and the shape of soft tissue, etc., so as to design the corresponding scheme and select different bracket data to achieve the goal of health correction, and effectively prevent the iatrogenic injury such as bone fenestration and bone cracking. The classification of skeletal Class II and class II 1 is common in malocclusion deformity. When the skeletal deformity is not serious, the thickness of the labial bone should be determined when the incisor is treated by concealment to improve the profile of the protrusion. When the severe skeletal deformity needs the combined treatment of Orthodontics and orthognathic, the decompensation limit should be clear by measuring the data of alveolar bone boundary, which is conducive to long-term stability and beauty after operation. A large number of studies show that clinicians pay more attention to it and find that there are differences in the bone mass of different vertical facial types of incisors and there are rules to follow, and the position angle of the incisors is also closely related to the profile, so this paper intends to review the vertical control and profile improvement of the incisors.