口腔疾病防治 ›› 2017, Vol. 25 ›› Issue (4): 239-244.DOI: 10.12016/j.issn.2096-1456.2017.04.008

• 临床研究 • 上一篇    下一篇

无症状人群颞下颌关节盘位置的核磁共振研究

周玭(), 李阳飞   

  1. 连云港市第一人民医院口腔分院,江苏连云港(222000)
  • 收稿日期:2016-06-29 修回日期:2016-09-12 出版日期:2017-04-20 发布日期:2018-09-03
  • 作者简介:

    【作者简介】欧阳可雄,副主任医师,博士, Email:ouyangkexiong@hotmail.com

  • 基金资助:
    连云港市卫生局科研项目(09056)

MRI study of temporomandibular joint disc position in asymptomatic volunteers

Pin ZHOU(), Yang-fei LI   

  1. Stomatology Hospital of Lianyungang, First People's Hospital of Lianyungang, Lianyungang 222000, China
  • Received:2016-06-29 Revised:2016-09-12 Online:2017-04-20 Published:2018-09-03

摘要:

目的 观察无症状志愿者颞下颌关节盘的位置,了解无症状人群中是否存在关节盘位置的异常,及其性别、左右侧分布特点。方法 无颞下颌关节病症状及病史的志愿者30名,共60例关节,其中男、女各15名,对其双侧颞下颌关节行开闭口轴位、斜矢状位和斜冠状位扫描,根据扫描结果对关节盘位置进行分类。结果 30名无症状志愿者中,正位关节盘45例,发生率为75%,其中女性20例,男性25例,右侧23例,左侧22例;前移位关节盘7例,发生率为11.67%,其中女性5例,男性2例,右侧5例,左侧2例;外侧移位关节盘6例,发生率为10%,其中女性3例,男性3例,右侧2例,左侧4例;内侧移位关节盘2例,发生率为3.33%,其中女性0例,男性2例,右侧0例,左侧2例;后移位关节盘0例,发生率为0。不同性别比较,差异无统计学意义(P> 0.05),左右侧关节比较,差异无统计学意义(P> 0.05)。结论 无症状志愿者关节盘多为正位,但无症状人群的关节盘移位确实存在,且以前外侧旋转移位最为常见,关节盘移位类型与性别无关,左右侧分布无差异。

关键词: 核磁共振成像, 颞下颌关节盘, 颞下颌关节, 髁突, 关节盘位置

Abstract:

Objective To investigate the position of temporomandibular joint and its relationship with gender and side in asymptomatic volunteers by magnetic resonance imaging (MRI). Methods The study was based on bilateral MRIs of 30 asymptomatic volunteers, including 15 females and 15 males. A total of 60 temporamandibular joints were scanned oblique-sagittally and oblique-coronarily at mouth closed positions. Classification of the position of temporomandibular joint disc was identified and analyzed according to MRI. Results Superior disk position was observed in 45 joints (75%), consisting of 20 in female plus 25 in male, and 23 at the right side plus 22 at the left side. Anterior disk position was observed in 7 joints (11.67%), consisting of 5 in female plus 2 in male, and 5 at the right side plus 2 at the left side. Lateral disk position was observed in 6 joints (10%), consisting of 3 in female plus 3 in male, and 2 at the right side plus 4 at the left side. Medial disk position was observed in 2 joints (3.33%), consisting of 0 in female plus 2 in male, and 0 at the right side plus 2 at the left side. No posterior disk position was observed in asymptomatic volunteers. There was no significant difference between genders or sides (P> 0.05). Conclusion Superior disk positionexists in most of asymptomatic volunteers. Disc displacement also existsin asymptomatic volunteers, however it is not associated with gender and side. Rotational anterolateral positon is the main type of disc displacement in asymptomatic volunteers.

Key words: Magnetic resonance imaging, Temporomandibular joint disc, Temporomandibular joint, Condyle, Disc position

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