Following are the possible positions of vertical dimension (or Vertical dimension can be classified as following); Except
Classification:

Vertical dimension at rest.
Vertical dimension at occlusion or occlusal vertical dimension.
Vertical dimension in other positions of mandible.
Vertical dimension at rest and occlusion are the two measurable guides and need to be determined.
Vertical dimension at rest.
Vertical dimension at occlusion or occlusal vertical dimension.
Vertical dimension in other positions of mandible.
None of the above