口腔医学研究 ›› 2023, Vol. 39 ›› Issue (3): 217-220.DOI: 10.13701/j.cnki.kqyxyj.2023.03.007

• 口腔影像学研究 • 上一篇    下一篇

武汉市562名12~16岁青少年下颌第三磨牙生长发育的锥形束CT研究

李林林1,2, 向国林1,3*   

  1. 1.武汉存济口腔医院颌面外科 湖北 武汉 430024;
    2.武汉市东西湖区人民医院口腔科 湖北 武汉 430040;
    3.武汉市第四医院口腔科 湖北 武汉 430033
  • 收稿日期:2022-09-28 出版日期:2023-03-28 发布日期:2023-03-21
  • 通讯作者: * 向国林,E-mail:xiang_guolin@163.com
  • 作者简介:李林林(1991~ ),女,湖北随州人,主治医师,硕士,主要从事口腔颌面外科临床工作。

Cone-beam CT Study on Growth and Development of Mandibular Third Molars Among 562 Adolescents Aged 12-16 in Wuhan

LI Linlin1,2, XIANG Guolin1,3*   

  1. 1. Department of Oral and Maxillofacial Surgery, Wuhan Savaid Stomatology Hospital, Wuhan 430024, China;
    2. Department of Stomatology, Wuhan Dongxihu People’s Hospital, Wuhan 430040, China;
    3. Department of Stomatology, Wuhan Fourth Hospital, Wuhan 430033, China
  • Received:2022-09-28 Online:2023-03-28 Published:2023-03-21

摘要: 目的: 调查武汉市青少年下颌第三磨牙的生长发育状况,为临床预防性拔除青少年下颌第三磨牙提供参考。方法: 选取2019年6月~2021年6月在武汉存济口腔医院就诊的562名12~16周岁青少年患者锥形束CT(cone-beam CT,CBCT)数字影像资料,其中男252例,女310例,观察下颌第三磨牙的发育状况、萌出方向及下颌牙列拥挤情况。结果: 下颌第三磨牙的检出率为95.2%,下颌第三磨牙的检出率无性别差异(P>0.05);大多数下颌第三磨牙处于牙冠形成生长发育阶段,冠根生长发育状况无性别差异(P>0.05);近中向阻生发育最常见,并且常伴有下颌牙列拥挤。结论: CBCT可用于准确评估青少年下颌第三磨牙生长发育状况。对12~16岁人群下颌第三磨牙生长发育状况的了解有助于为临床预防性拔除下颌第三磨牙提供一定的参考依据。

关键词: 锥形束CT, 下颌第三磨牙, 生长发育, 青少年

Abstract: Objective: To investigate the growth and development of mandibular third molars in adolescents in Wuhan, and to provide reference for clinical preventive extraction of mandibular third molars in adolescents. Methods: The digital imaging data of cone-beam CT of 562 adolescent patients aged 12 to 16 in Wuhan who were treated in Wuhan Savaid Stomatology Hospital from June 2019 to June 2021were selected, including 252 males and 310 females, the growth, development, and eruption direction of mandibular third molars and the crowding of mandibular dentition were observed. Results: The incidence of mandibular third molars was 95.2%, and there was no significant difference in the incidence of mandibular third molars between male and female (P>0.05). Most of the mandibular third molars were in the development stage of crown formation, there was no difference in the development of mandibular third molars in different genders (P>0.05). Mesial impacted development was the most common, and it was often accompanied by crowding of the mandibular dentition. Conclusion: The growth and development of mandibular third molars evaluated by cone-beam CT imaging data has reference value for clinical preventive extraction of mandibular third molars.

Key words: cone-beam CT, mandibular third molars, growth and development, adolescents