口腔医学研究

口腔医学研究 ›› 2026, Vol. 42 ›› Issue (3): 250-253.DOI: 10.13701/j.cnki.kqyxyj.2026.03.014

• 病例报告 • 上一篇    下一篇

上颌巨大骨岛致正畸牙根移动受限1例

魏国玢, 朱博武*   

  1. 兰州大学口腔医学院 甘肃 兰州 730000
  • 收稿日期:2025-05-06 发布日期:2026-03-26
  • 通讯作者: * 朱博武,E-mail:zhoubw10@lzu.edu.cn
  • 作者简介:魏国玢(1997~ ),女,甘肃古浪人,硕士,住院医师,研究方向:口腔正畸学,生物材料。
  • 基金资助:
    兰州大学口腔医院临床项目(编号:lzukqky-2023-t03)

Orthodontic Root Movement Restriction Due to Huge Maxillary Bone Island: A Case Report

WEI Guobin, ZHU Bowu*   

  1. School of Stomatology, Lanzhou University, Lanzhou 730000, China
  • Received:2025-05-06 Published:2026-03-26

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摘要： 本文报告1例19岁女性上颌巨大骨岛(bone island)对正畸牙移动的影响。通过锥形束计算机断层扫描(cone beam computed tomography,CBCT)评估骨岛与牙根三维关系,采用拔牙及微螺钉支抗技术联合MBT直丝弓矫治。治疗后面型改善,间隙关闭,但骨岛致密结构致左上颌侧切牙与第一前磨牙牙根平行度欠佳,提示骨岛限制牙根生理性移动。本病例为颌骨骨岛正畸患者的个性化治疗方案及治疗目标设计提供了参考。

关键词: 骨岛, 锥形束CT, 正畸牙移动

Abstract: This paper reports the effect of a huge maxillary bone island on orthodontic tooth movement in a 19-year-old female. The three-dimensional relationship between the bone island and the root was assessed by cone beam computed tomography (CBCT), and the extraction and miniscrew anchorage technique combined with MBT straight wire arch treatment was used. The post-treatment profile was improved with gap closure, but the dense structure of the bone island caused poor root parallelism between the left maxillary lateral incisor and the first premolar, suggesting that the bone island restricted the physiological movement of the root. This case provides a reference for orthodontic patients with bone islands in the jaws who need to focus on the design of individualized treatment plans and treatment goals.

Key words: bone islands, CBCT, orthodontic tooth movement