咬合平面倾斜度与咀嚼运动之间的相关性。
Correlation between inclination of occlusal plane and masticatory movement.
作者信息
Ogawa T, Koyano K, Suetsugu T
机构信息
Department of Prosthetic Dentistry II, Faculty of Dentistry, Kyushu University, Fukuoka, Japan.
出版信息
J Dent. 1998 Mar;26(2):105-12. doi: 10.1016/s0300-5712(97)00001-8.
OBJECTIVES
The purpose of this study was to investigate the relationship between the inclination of the occlusal plane and masticatory movement.
METHODS
Masticatory movements of 41 young adults were measured using the three-dimensional Mandibular Movement Analyzing System. The inclination of the occlusal plane was measured in the sagittal plane using a three-dimensional digitizer.
RESULTS
In the sagittal plane, the masticatory closing path and the occlusal plane were consistent in maintaining a perpendicular relation with each other regardless of the inter-individual variation of the inclination of the occlusal plane. Subjects with an anteriorly inclined occlusal plane showed a vertical closing path, and subjects with a posteriorly inclined occlusal plane showed a flat closing path in the frontal plane. These characteristics were explained by the variation of the timing on the balancing-side condylar return correlated with the inclination of the occlusal plane.
CONCLUSIONS
There is a significant correlation between the inclination of the occlusal plane and the direction of the closing path during mastication.
目的
本研究旨在探讨咬合平面倾斜度与咀嚼运动之间的关系。
方法
使用三维下颌运动分析系统测量41名年轻成年人的咀嚼运动。使用三维数字化仪在矢状面测量咬合平面的倾斜度。
结果
在矢状面，无论咬合平面倾斜度的个体差异如何，咀嚼闭合轨迹与咬合平面在相互保持垂直关系方面是一致的。咬合平面前倾的受试者在额状面表现出垂直的闭合轨迹，而咬合平面后倾的受试者在额状面表现出平坦的闭合轨迹。这些特征可通过与咬合平面倾斜度相关的平衡侧髁突返回时间的变化来解释。
结论
咬合平面倾斜度与咀嚼时闭合轨迹的方向之间存在显著相关性。
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