Mori T, Kawaguchi T, Katto K, Kano N, Takeuchi K, Tanaka K, Usami H, Naka Y, Asakura Y
Aichi Gakuin Daigaku Shigakkai Shi. 1989 Dec;27(4):845-53.
Mandibular movements in 7 normal dentulous subjects during lateral and protrusive excursions were studied to investigate the effects of the clinical use of articulating paper on mandibular paths. Mandibular movements with or without the intraoral articulating paper (thickness: 35 microns) were detected as the lower incisal point displacement and were recorded three-dimensionally with the Selspot system. The date displayed on the X-Y chart recorder on the selected plane were analyzed quantitatively. 1. The paths of the mandible differed between the outward (from the intercuspal position) and the return (backward to the intercuspal position) movements. In lateral excursions the return path tended to be antero-inferior to the outward path, whereas in protrusive excursions the former tended to be dextro-inferior to the latter. 2. In lateral excursions the return path tended to be less stable than the outward path. In protrusive excursions no significant difference was found between the two paths. 3. In lateral excursions, 21-34% of the movements performed using the articulating paper deviated from the normal paths made without using the paper, and in the case of protrusive excursions, deviation was found in 21-50%. At or near the intercuspal position, the return path showed a greater deviation than the outward path. Near the edge-to-edge position, however, the relationship between these two path was reversed. 4. It is suggested that, when the articulating paper is used, the directions of the movement should be taken into account and sufficient care should be paid in occlusal adjustment because the range of functional movement may be overestimated.
研究了7名正常有牙受试者在侧方和前伸运动时的下颌运动，以调查咬合纸临床应用对下颌运动轨迹的影响。通过下颌切牙点位移检测有无口内咬合纸（厚度：35微米）时的下颌运动，并使用Selspot系统进行三维记录。对所选平面上X-Y图表记录仪显示的数据进行定量分析。1. 下颌从牙尖交错位向外（侧方运动）和返回（回到牙尖交错位）运动的轨迹不同。在侧方运动中，返回轨迹往往位于向外轨迹的前下方，而在前伸运动中，前者往往位于后者的右下方。2. 在侧方运动中，返回轨迹往往比向外轨迹更不稳定。在前伸运动中，两条轨迹之间未发现显著差异。3. 在侧方运动中，使用咬合纸进行的运动中有21%-34%偏离了不使用咬合纸时的正常轨迹，在前伸运动中，偏离率为21%-50%。在牙尖交错位或其附近，返回轨迹的偏差大于向外轨迹。然而，在对刃位附近，这两条轨迹的关系则相反。4. 建议使用咬合纸时，应考虑运动方向，在咬合调整时应格外小心，因为功能运动范围可能会被高估。
