Int J Stomatol

Int J Stomatol ›› 2024, Vol. 51 ›› Issue (2): 164-171.doi: 10.7518/gjkq.2024029

• Anatomy • Previous Articles     Next Articles

Progress in research into the influence of the incisive canal on the three-dimensional movement of maxillary central incisors

Yunxin Chen1(),Shushu Li2,Zicheng Huang1,Weidong Kong2()   

  1. 1.School of Stomatology, Jinan University, Guangzhou 510630, China
    2.Dept. of Orthodontics, the First Affiliated Hospital of Jinan University, Guangzhou 510630, China
  • Received:2023-07-25 Revised:2023-12-20 Online:2024-03-01 Published:2024-03-11
  • Contact: Weidong Kong E-mail:cyxlawuu@163.com;tkongwd@jnu.edu.cn
  • Supported by:
    Clinical Frontier Technology Program of the First Affiliated Hospital of Jinan University(JNU1AF-CFTP-2022-A01229)

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Abstract:

The position of the maxillary central incisor is essential in facial aesthetics. In orthodontic treatment, the maxillary central incisor moves in three-dimensional directions according to actual situations although the range of its movement is usually assumed to be restricted by the labial and palatal cortices. An incisive canal with an irregular anato-mical shape in the maxilla can be detected through cone beam computed tomograph (CBCT), and the wall of this canal is surrounded by dense cortical bones. If the maxillary central incisor invades it, the root will be absorbed. Therefore, the range of movement is closely related to the shape and position of the incisive canal and should be considered for the prevention of unnecessary injury to the tooth root. This article reviews the effect of the incisive canal on the three-dimensional movement of the maxillary central incisor.

Key words: incisive canal, maxillary central incisor, movement restriction, root absorption

CLC Number: 

  • R783.5

TrendMD: 

Fig 1

Positional relationship and measurement parameters of the maxillary central incisor with respect to the incisive canal and the maxillary palatal bone plate"

Fig 2

Schematic drawing of the plane, mark points and parameters of the measurements"

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