切牙管及其与上颌中切牙位置关系的研究进展

摘要/Abstract

摘要： 上颌中切牙的矢状向位置决定了正畸患者的侧貌美观，在正畸临床诊疗中，上颌前突患者一般需要通过减数四个前磨牙进行矫治，以最大支抗内收上下颌前牙，来改善侧貌，解决突度问题。传统支抗正畸手段可以使上颌中切牙内收5.78mm，而种植支抗可以使上颌中切牙的最大内收量增大至8mm，但是在上颌前牙内收的过程中，少数上颌中切牙会侵犯上颌骨一个重要的解剖结构——切牙管，从而导致牙根吸收，牙齿松动等并发症的出现。因此本文就切牙管及其与上颌中切牙位置关系的研究进展做一综述。

关键词: 切牙管, 上颌中切牙, 上前牙内收, CBCT

Abstract: The sagittal position of the maxillary central incisor determines the aesthetic appearance of orthodontic patients. In orthodontic clinical diagnosis and treatment, patients with maxillary protrusion need to be treated with a reduction of four premolars to maximize the adduction and adduction of the upper and lower anterior teeth to improve the lateral appearance and solve the problem of suddenness. Traditional orthodontic treatment can make the maxillary central incisor adduct 5.78mm, and implant anchorage can increase the maximal adduction of the maxillary central incisor to 8mm, but in the process of adduction of the maxillary anterior teeth, a few maxillary Incisors can invade an important anatomical structure of the maxilla, the incisive canal, which leads to complications such as root resorption and teeth loose. Therefore, this paper reviews the research progress of the relationship between the incisive canal and the position of the maxillary central incisor.

Key words: incisive canal, maxillary central incisor , maxillary central incisor traction, cone-beam computed tomography

中图分类号:

R783.5

颜冬谢宁张晗李祥吴聿淼白璐朱宪春. 切牙管及其与上颌中切牙位置关系的研究进展[J]. , 2019, 39(10): 957-960.

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