Graham C H
Aust Dent J. 1976 Feb;21(1):15-22. doi: 10.1111/j.1834-7819.1976.tb04412.x.
Changes that may occur in an occlusion are basically either horizontal or vertical. Horizontal changes need not be damaging and may be readily accommodated. Vertical changes can be more damaging and require a more extensive treatment procedure.
咬合中可能出现的变化基本上要么是水平的，要么是垂直的。水平变化不一定具有损害性，并且可能很容易适应。垂直变化可能更具损害性，需要更广泛的治疗程序。
