中国实用口腔科杂志

中国实用口腔科杂志

• 论著 • 上一篇    下一篇

第二前磨牙先天缺失与蝶鞍的相关性研究

刘军1，杨洁1，李铎1，蓝义亮1，郑博文2，刘奕1   

  1. 1. 中国医科大学附属口腔医院奉天门诊，辽宁省口腔医学研究所，辽宁 沈阳 110013；2. 中国医科大学附属口腔医院正畸二科，辽宁  沈阳  110002
  • 出版日期:2019-02-15 发布日期:2019-03-27
  • 基金资助:

    辽宁省自然科学基金（20180550420）

  • Online:2019-02-15 Published:2019-03-27

摘要：

目的　探索第二前磨牙先天缺失与蝶鞍大小、形态和鞍桥发生率之间是否有相关性。方法　选取2010—2017年中国医科大学附属口腔医院奉天门诊及正畸二科收治的仅第二前磨牙先天缺失（除第三磨牙外）患者80例作为研究组，另选取同期收治的无恒牙先天缺失（除第三磨牙外）且接受正畸治疗的安氏Ⅰ类患者250例作为对照组。收集两组患者头颅侧位片和曲面体层片，使用Winceph 8.0软件定位相关标记点，并测量蝶鞍的长度、深度和直径，同时记录蝶鞍的形态（扁平形、椭圆形、圆形）以及鞍桥的类型（无鞍桥、部分鞍桥、完全鞍桥）。采用SPSS 17.0统计软件对所得数据进行统计学分析。结果　两组患者的蝶鞍大小、形态比较，差异均无统计学意义（均P > 0.05）。研究组患者鞍桥发生率明显高于对照组，差异有统计学意义（P < 0.001）。两组不同性别患者蝶鞍大小、形态以及鞍桥发生率比较，差异无统计学意义（P > 0.05）。结论　研究组患者鞍桥发生率显著增加，提示第二前磨牙的先天缺失可能与鞍桥的发生有关。不同性别患者的蝶鞍大小、形态和鞍桥发生率均无差异。

关键词: 第二前磨牙先天缺失, 鞍桥, 头颅侧位片, 曲面体层片

Abstract:

Objective　To explore whether there is a correlation between congenital absence of second premolars and the size and shape of sella turcica and sella bridge. Methods　Totally 80 patients with congenital absence of the second premolar（except the third molar）who visited the Orthodontic Department of the Fentian Clinic  and Orthodontics Affiliated to Stomatological Hospital of China Medical University from 2010 to 2017 were selected as the experiment group. Totally 250 patients with congenital absence of permanent teeth（except the third molar）who received orthodontic treatment in the Orthodontic Department of the Fentian Clinic Affiliated to Stomatological Hospital of China Medical University during the same period were selected as the control group. Cephalometric and panoramic radiographs were collected from the two groups. Winceph 8.0 software was used to locate the marker points and measure the length，depth and diameter of the sella turica. The shape of the sella turica（flat，oval，round）and the type of the sella turica bridge（no sella bridge，partial sella bridge，complete sella bridge）were recorded. SPSS 17.0 statistical software was used to analyze the data. Results　There was no significant difference in the size or shape of sella turica between the two groups（P > 0.05）. The incidence of sella bridge in the expermint group was significantly higher than that in the control group，and there was a difference between the two groups（P < 0.001）. There was no difference in the size，shape or incidence of sella bridge between male and female patients（P > 0.05）. Conclusion　The incidence of sella bridge increases significantly in the experiment group，suggesting that the congenital absence of the second premolar may be related to the occurrence of sella bridge. There is no difference in sella size，shape or incidence of sella bridge between male and female patients.

Key words: congenital absence second premolar, sellar turcica bridge, cephalometric radiogragh, panoramic radiographs