摘要
目的：研究青少年单侧颞下颌关节盘前移位患者面部不对称畸形的特点及其与盘前移位的关系。方法：收集经磁共振确诊为单侧颞下颌关节盘前移位的10～20岁青少年单侧盘前移位连续病例．进行X线头颅定位正位片检查并测量，采用SPSS18．0软件包，使用独立样本t检验分析左侧移位组和右侧移位组下颌骨（颏部、下颌角、髁突）、上颌骨（前鼻棘、颧牙槽嵴）和牙列（上、下牙列中点）不对称的特点。结果：105例10～20岁（平均16．76岁）青少年单侧盘前移位患者中，下颌偏斜患者67例（63．81％）。单侧盘前移位患者移位侧下颌骨垂直向高度不足，下颌角离散度增大，颏中线和上、下颌牙列中线向移位侧偏斜（P〈0．05）。左侧盘前移位患者上颌骨未见显著不对称眵0．051，右侧盘前移位患者上颌骨显著不对称（P〈0．05）。结论：青少年单侧关节盘前移位患者表现出明显的面部不对称．且与单侧盘前移位患病侧紧密相关。面部不对称以下颌骨最为明显，表现为颏部偏向移位侧，以及下颌骨整体向移位侧旋转：上颌骨则表现出移位侧垂直向发育受影响的趋势。
PURPOSE： To study the characteristics of facial asymmetry of adolescent unilateral temporomandibular anterior disc displacement patients, and clarify the relationship of facial asymmetry and disc displacement. METHODS： Consecutive juvenile patient of 10 to 20 year-old with unilateral temporomandibular anterior disc displacement confirmed by magnetic resonauce imaging were collected, posteroanterior cephalometric radiographs were taken and measured. SPSS 18.0 software package was employed to analyze the asymmetry of mandible （menton, gonion, condyle）, maxilla （anterior nasal spine, zygomatic alveolar ridge） and dentition （the midpoint of the upper and lower dentition） within both left and right disc displacement through one sample t test. RESULTS： One hundred and five cases aging from 10 to 20 years old （mean 16.76 years） with unilateral disc displacement were collected, 67 （63.81%） were diagnosed as mandibular deviation. Patient with unilateral disc displacement displayed decrease of vertical height of ramus, increase of dispersion of gonion on the ipsilateral side, and shift of midline of chin and upper and lower dentition to the same side （P〈0.05）. There was significant asymmetry of the maxilla in the right disc displacement group （P〈0.05）, but no asymmetry in the left disc displacement group （P〉0.05）. CONCLUSION： Teenagers with unilateral anterior disc displacement showed significant facial asymmetry and its characteristics was closely related to the ipsilateral side of disc displacement. Facial asymmetry affected mostly mandible with the chin deviated and overall rotation of mandible to the ipsilateral side. There is a tendency that development of maxilla on the ipsilateral side was affected.
出处
《中国口腔颌面外科杂志》
CAS
2014年第1期69-73,共5页
China Journal of Oral and Maxillofacial Surgery
