An over-increased VDO may cause muscle fatigue, joint pain, difficulty swallowing, and "clacking" of teeth during speech. Determining the Correct VDO

In the world of dentistry, , or Occlusal Vertical Dimension (OVD) , is a foundational measurement that describes the vertical relationship between the upper (maxilla) and lower (mandible) jaws when teeth are in full contact. It is essentially the "height" of the lower third of the face. Maintaining or restoring this distance is critical for a patient’s facial aesthetics, speech, and overall jaw health. Why VDO Matters

Because there is no single, universally accepted method for recording VDO, clinicians often use a combination of techniques tailored to the patient: Increasing Vertical Dimension of Occlusion (VDO): Review

Can cause a "collapsed" facial appearance, characterized by drooping corners of the mouth, deepening facial folds, and thinner-looking lips. In some cases, it can even lead to impaired hearing or Temporomandibular Joint (TMJ) issues.

A balanced VDO acts as a comfort zone formed by musculoskeletal harmony. When this dimension is altered—whether through natural aging, extensive tooth wear, or tooth loss—it can lead to several complications: