广东牙病防治2016，Vol.24Issue(2)：94-97,4.DOI:10.12016/j.issn.2096-1456.2016.02.006
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
The investigation of the perpendicular occlusal condition of the mesially impacted mandibular third molars and its relationship with TMD
摘要
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 im-pacted 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 Au-toCAD 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 (χ2 =7. 24, P=0. 007) . Observation group's vertical abnormal occlusion rate ( 40. 5%) was significantly higher than the control group ( 10. 0%) , the differ-ence 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.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Key words
Mesially impacted mandibular third molar/Temporomandibular joint disorders/Spee curve/Verti-cal abnormal occlusion/Occlusion index分类
口腔医学引用本文复制引用
王海涛,余敏,王增全,涂少勤,吴斯媛..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[J].广东牙病防治,2016,24(2):94-97,4.基金项目
广东省医学科研基金(2014A030313738) （2014A030313738）
