Vertical Dimension at Rest (VDR) corresponds to which term?

Vertical Dimension at Rest (VDR) corresponds to which term?

• A. Vertical Dimension at Rest (VDR)
• B. Vertical Dimension of Occlusion (VDO)
• C. Interocclusal distance
• D. Occlusal vertical

Answer: (A)

Vertical Dimension at Rest is defined by the distance between the upper and lower jaws when the mandible is in physiologic rest, with no tooth contact. The option that matches this same idea is Vertical Dimension at Rest itself, since it names the measurement taken in the rest position. The other terms describe different states: Vertical Dimension of Occlusion is the distance when the teeth are in occlusion; interocclusal distance (freeway space) is the gap between the dental arches at rest, i.e., the difference between rest and occlusal dimensions; and Occlusal vertical is not a standard term.

Vertical Dimension at Rest is defined by the distance between the upper and lower jaws when the mandible is in physiologic rest, with no tooth contact. The option that matches this same idea is Vertical Dimension at Rest itself, since it names the measurement taken in the rest position. The other terms describe different states: Vertical Dimension of Occlusion is the distance when the teeth are in occlusion; interocclusal distance (freeway space) is the gap between the dental arches at rest, i.e., the difference between rest and occlusal dimensions; and Occlusal vertical is not a standard term.