口腔疾病防治 ›› 2016, Vol. 24 ›› Issue (2): 94-97.DOI: 10.12016/j.issn.2096-1456.2016.02.006

所属专题: 111

• 临床研究 • 上一篇    下一篇

下颌第三磨牙近中阻生患者垂直向咬合状况与TMD的关系探讨

王海涛1,余敏2,王增全3(),涂少勤3,吴斯媛3   

  1. 1.佛山市口腔医院城南分院口腔综合科,广东 佛山(528000)
    2.广州市红十字会医院口腔科
    3.佛山市口腔医院口腔正畸科
  • 收稿日期:2015-09-02 修回日期:2015-09-21 出版日期:2016-02-20 发布日期:2016-02-20
  • 通讯作者: 王增全
  • 作者简介:王海涛,主治医师,本科, Email:wanghaitao36741@163.com
  • 基金资助:
    广东省医学科研基金(2014A030313738)

The investigation of the perpendicular occlusal condition of the mesially impacted mandibular third molars and its relationship with TMD

Hai-tao WANG1,Min YU2,Zeng-quan WANG3(),Shao-qin TU3,Si-yuan WU3   

  1. 1General dentistry of South Branch of Foshan Stomatological Hospital, Foshan 528000, China
  • Received:2015-09-02 Revised:2015-09-21 Online:2016-02-20 Published:2016-02-20
  • Contact: Zeng-quan WANG

摘要:

目的 探讨下颌第三磨牙近中阻生患者垂直向咬合情况与颞下颌关节紊乱病(temporomandibular joint disorders,TMD)的关系。方法 选取37例下颌第三磨牙近中阻生患者纳入观察组,另选20例非下颌第三磨牙近中阻生的口腔疾病患者纳入对照组,评估其垂直向、颊舌向、近远中向咬合状况,运用AutoCAD软件进行下颌牙列Spee曲线测量。结果 观察组TMD患病率(51.4%)显著高于对照组(15.0%),差异具有统计学意义(χ 2=7.24,P=0.007);观察组垂直向咬合异常率(40.5%)高于对照组(10.0%),差异有统计学意义(χ 2=5.79,P=0.056),观察组和对照组颊舌向、近远中向咬合异常率差异无统计学意义(P>0.05);观察组和对照组Spee曲线平均深度分别为(2.41±0.26) mm、(2.05±0.18) mm,观察组Spee曲线深度较对照组有增加,差异具有统计学意义(t=4.51,P=0.009)。结论 下颌第三磨牙近中阻生患者TMD发生率高于非近中阻生患者;下颌第三磨牙近中阻生引发垂直向咬合异常。

关键词: 近中阻生下颌第三磨牙, 颞下颌关节紊乱, Spee曲线, 垂直向咬合异常, 咬合指数

Abstract:

Objective To investigate the perpendicular occlusal condition of the mesially impacted mandibular third molars and its relationship with temporomandibular joint disorders (TMD). Methods Thirty-seven cases of mesially impacted mandibular wisdom teeth were selected as the observation group, and 20 cases of other oral diseases without the mesially impacted third molars were selected as the control group from Jun 2012 to Sep 2014. Occlusion in the vertical, buccal-lingual and mesial-distal directions were analyzed with occlusion index.Depth of Spee curve was measured by AutoCAD software. Results Prevalence of TMD of observation group (51.4%) was significantly higher than the control group (15.0%), the difference between the two groups was statistically significant (χ 2=7.24, P=0.007). Observation group's vertical abnormal occlusion rate (40.5%) was significantly higher than the control group (10.0%), the difference between the two groups was statistically significant (P<0.05). Average depth of Spee curve in observation group and control group were (2.41±0.26) mm and (2.05±0.18) mm respectively, the difference was statistically significant (t=4.51, P=0.009). Conclusion Incidence of TMD in patients with mesially impacted mandibular wisdom tooth is higher than that of patients without mesially impacted mandibular wisdom tooth. Mandibular impacted wisdom tooth may cause vertical abnormal occlusion. TMD is related to vertical abnormal occlusion.

Key words: Mesially impacted mandibular third molar, Temporomandibular joint disorders, Spee curve, Vertical abnormal occlusion, Occlusion index

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