hinge axis(redirected from orbital plane hinge axis)
trans·verse hor·i·zon·tal ax·is
an imaginary line around which the mandible may rotate through the horizontal plane.
a line that passes through the left and right mandibular condyles and coincides with the center of rotation of the mandible. Determining the hinge axis is essential in constructing dental prostheses and correcting occlusal interferences.
trans·verse hor·i·zon·tal ax·is(trans-vĕrs' hōr'i-zon'tăl ak'sis)
n See axis, hinge.
n See axis, hinge, orbital plane.