Roedema W H, Knapp J G, Spencer J, Dever M K
J Prosthet Dent. 1978 Oct;40(4):385-91. doi: 10.1016/0022-3913(78)90117-8.
Mandibular movements can be represented and viewed graphically in three planes--occlusal (approximately horizontal but variable), sagittoid (approximately sagittal), and frontal. The student of occlusion can vary the settings of the mathematical articulator and observe the three-dimensional changes produced in the interocclusal movement patterns.
下颌运动可以在三个平面上以图形方式呈现和观察——咬合平面（近似水平但可变）、矢状面（近似矢状）和额状面。咬合学的学生可以改变数学式牙合架的设置，并观察在牙合间运动模式中产生的三维变化。
