【中山下智久】評論
下顎骨生長過程中會產生向前的「內旋轉」約...
【darksun】評論
The typical pattern of vertical rotation is forward (counterclockwise with the subject facing to the right), due to greater inferior displacements of the posterior than anterior aspects of the mandible.因為下顎骨後側的向下位移比較多，會造成forward rotation，也就是面對右側時，下顎骨會逆時針旋轉，下顎平面角會減少。