对40例前牙重度深覆患者的薛氏位X线片进行了测量分析并与正常值进行比较。结果:关节弹响率为72.5％,牙尖交错时髁突不在关节凹中央者为81.2％,关节骨质改变率为51.2％。深覆患者的关节结节高度和斜度与正常人无显著性差异,前牙的覆、覆盖与关节凹宽度和关节结节高度无相关性。提示前牙的覆、覆盖与颞颌关节的骨性解剖形态之间无直接的相关性,深覆是不良型容易出现颅颌功能紊乱。 Forty patients with severe deep overburns were examined with X-ray films and compared with normal values. Results: The snapping rate of the joint was 72.5%. The condylar process was 81.2% when the cusps were staggered, and the rate of change of the joint was 51.2%. There was no significant difference in height and slope of joint nodules between patients with deep overburns and normal subjects. There was no correlation between the coverage and the concave width of joint and the height of joint nodules. Tip of the anterior teeth cover, cover and temporomandibular joint bony anatomy is not directly related to the deep overburdened is prone to craniofacial dysfunction.