Yamauchi M, Ozawa M, Kawano J
Gifu Shika Gakkai Zasshi. 1989 Jun;16(1):232-40.
The wear facets produced 10 years ago were compared with the present ones in a 35-year old patient with bruxism. The electromyographic data of 10 years ago were also compared with the current data. Current mandibular kinesiograph data were also measured. The total area of the present wear facets was increased approximately 2.3 times those of 10 years ago in the upper teeth, and approximately 2 times in the lower teeth. However, the number of current wear facets of the upper and lower teeth was reduced, compared to that of 10 years ago. The Gothic arch tracing revealed a difference of about 1 mm between the centric occlusion and the centric relation. The patient had a unilateral balanced occlusion and a grinder-type chewing pattern. The free-way space, was in a normal range, approximately 2 mm. The raw electromyographs during sponge chewing 10 years ago differed from the present findings, although the chewing rhythm was the same.
对一名患有磨牙症的35岁患者10年前产生的磨耗小面与当前的磨耗小面进行了比较。还将10年前的肌电图数据与当前数据进行了比较。同时测量了当前的下颌运动描记仪数据。当前磨耗小面的总面积在上颌牙齿中比10年前增加了约2.3倍，在下颌牙齿中增加了约2倍。然而，与10年前相比，上下颌牙齿当前磨耗小面的数量减少了。哥特式弓描记显示正中咬合与正中关系之间相差约1毫米。该患者具有单侧平衡咬合和磨牙型咀嚼模式。息止间隙在正常范围内，约为2毫米。尽管咀嚼节奏相同，但10年前海绵咀嚼期间的原始肌电图与当前结果不同。
