Dynamic Effect of Occlusal Vertical Dimension on Lower Facial Form and Lip Positions

Starting soon · Not applicable

Conditions studied: Assessment of Vertical Dimension Change

In brief

The purpose of this study is to evaluate the effect of increased/decreased occlusal vertical dimension (OVD) on lower facial form and lip position, to analyze variations across gender groups and to analyze variations across age groups.

Key facts

Study ID

NCT07491640

Run by

The University of Texas Health Science Center, Houston

People needed

50

Starts

2026-03-30

Expected to finish

2026-06-30

Last updated by the study team

2026-03-24

Who can join

Age: 21 and older, up to 90. Sex: any. Healthy volunteers: not accepted.

You may qualify if…

• Complete edentulous with complete dentures or overdentures

You may not qualify if…

• Gross facial asymmetry
• A history of surgery in the facial area
• A history of neurologic disorders
• Ill-fitting dentures
• Dentures with inaccurate occlusal vertical dimension (OVD)
• Inability or unwillingness to smile
• Allergy to nitrile, vinyl polysiloxane (VPS) material or photopolymer resins.
• Presence of facial hair that would interfere with marking reference points on the face
• Severe class II or class III malocclusion

Where it is running

• The University of Texas Health Science Center at houston — Houston, Texas, United States

Full record on ClinicalTrials.gov

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