伴有偏侧咀嚼习惯的颞下颌关节紊乱病患者全口义齿修复后髁状突位置变化的观察

The study of the changes of mandibular condyle position before and after complete denturein heavy abrison and TMJDS patients

目的:观察有偏侧咀嚼习惯的颞下颌关节紊乱病患者全口义齿修复前后髁状突位置的改变。方法:对34例偏侧咀嚼伴颞下颌关节紊乱病患者行重新全口义齿修复,于治疗前后拍摄双侧颞下颌关节薛氏位片,进行关节间隙测量。结果:治疗前关节前、上、后间隙(左/右)分别为1.10mm/3.76mm、1.24mm/1.87mm、5.54mm/1.98mm;治疗后分别为2.43mm/1.7mm、2.47mm/2.76mm、3.06mm/2.99mm。其中关节前、中、后间隙改变有统计学意义(P<0.05)。结论:全口义齿重新修复治疗偏侧咀嚼伴颞下颌关节紊乱病的无牙颌患者,恢复其正常的垂直距离利于恢复髁状突在关节凹中的正常位置。

Objective： To observe the changes of mandibular condyle position before and after complete denture with habitual unilateral chewing and TMJDS patients. Methods： Complete denture were used to treat 34 patients with heavy wear and TMJDS when normal vertical dimension were restored. The Schuller＇ s positional radiographs were taken before and after treatment. Joint spaces between the glenoid fossa and surface of condyle were measured on the centric occlusion. Results： The anterior, superior and posterior spaces of joint were displaced 1.10mm/3.76mm, 1.24mm/1.87mm, 5.54mngl.98mm respectively before treatment, and that became 2.43mm/1.7mm, 2.47mm/2.76mm, 3.06mm/2.99mm respectively after denture restoration. There were statistic differences in the changes of anterior and posterior spaces（P〈0.05, P〈0.01）. Conclusion： The patients with heavy wear and TMJDS were treated with new complete denture with normal vertical dimension. The mandibular condyle positions were moved in suitable position.