Occlusal Vertical Dimension Modification for Loss of Vertical Dimension

MD
CC
Overseen ByChun-Yeh Chien
Age: 18+
Sex: Any
Trial Phase: Academic
Sponsor: The University of Texas Health Science Center, Houston
No Placebo GroupAll trial participants will receive the active study treatment (no placebo)

What You Need to Know Before You Apply

What is the purpose of this trial?

This trial explores how changes in the height of dentures, known as occlusal vertical dimension (OVD) modification, can alter the shape of the lower face and the position of the lips. Researchers aim to examine how these changes vary between men and women and across different age groups. Participants should have complete dentures or overdentures and no major facial issues, such as asymmetry or severe tooth misalignment.

As an unphased trial, this study provides a unique opportunity to contribute to understanding how denture modifications affect facial aesthetics across various demographics.

What prior data suggests that Occlusal Vertical Dimension Modification is safe?

Research has shown that adjusting the occlusal vertical dimension (OVD) is generally safe. This adjustment changes the space between the upper and lower jaws when the mouth is closed. Studies have found that increasing the OVD, when necessary, is a safe procedure and is well-tolerated by individuals with natural teeth.

Most people do not experience serious problems with this adjustment. Some minor issues, such as temporary jaw muscle tenderness, can occur but usually resolve on their own. Overall, research considers the procedure predictable and safe.

For those considering joining a trial involving changes to the OVD, this information suggests it is generally safe.12345

Why are researchers excited about this trial?

Researchers are excited about this trial because it explores how changing the Occlusal Vertical Dimension (OVD) can impact facial form and lip positions. Unlike traditional approaches that might focus on fixed dental prosthetics or orthodontics, this study investigates the dynamic effects of altering the vertical space between the jaws by specific millimeters. By examining variations of -4mm to +4mm, the trial aims to understand how slight adjustments can influence facial aesthetics without invasive procedures. This could potentially lead to new non-surgical options for enhancing facial appearance and function.

What evidence suggests that this trial's treatments could be effective for modifying lower facial form and lip position?

Research has shown that altering the distance between the upper and lower jaws, known as the occlusal vertical dimension (OVD), can significantly impact facial appearance and lip positioning. This trial will explore various modifications of OVD, including reductions and increases. Increasing this distance can make the face appear less sunken and improve the shape of the lower face. Studies have found that this change can also alter the appearance of a smile by affecting the space between the lips and teeth. Additionally, increasing OVD can safely adjust the height of the lower face, enhancing overall facial balance. These findings suggest that modifying OVD could effectively enhance the appearance of the lower part of the face.36789

Who Is on the Research Team?

MD

Maria D Gonzalez, DDS, MS

Principal Investigator

The University of Texas Health Science Center, Houston

Are You a Good Fit for This Trial?

Inclusion Criteria

Complete edentulous with complete dentures or overdentures

Exclusion Criteria

Allergy to nitrile, vinyl polysiloxane (VPS) material or photopolymer resins
Presence of facial hair that would interfere with marking reference points on the face
I have had surgery on my face.
See 6 more

Timeline for a Trial Participant

Screening

Participants are screened for eligibility to participate in the trial

2-4 weeks

Treatment

Participants undergo occlusal vertical dimension modification to evaluate effects on lower facial form and lip position

6-8 weeks

Follow-up

Participants are monitored for changes in facial form and lip position after treatment

4 weeks

What Are the Treatments Tested in This Trial?

Interventions

  • Occlusal Vertical Dimension Modification

How Is the Trial Designed?

5

Treatment groups

Experimental Treatment

Group I: Occlusal Vertical Dimension Modification (0 mm)Experimental Treatment1 Intervention
Group II: Occlusal Vertical Dimension Modification (-4mm)Experimental Treatment1 Intervention
Group III: Occlusal Vertical Dimension Modification (-2 mm)Experimental Treatment1 Intervention
Group IV: Occlusal Vertical Dimension Modification (+4mm)Experimental Treatment1 Intervention
Group V: Occlusal Vertical Dimension Modification (+2mm)Experimental Treatment1 Intervention

Find a Clinic Near You

Who Is Running the Clinical Trial?

The University of Texas Health Science Center, Houston

Lead Sponsor

Trials
974
Recruited
361,000+

Citations

Increasing Vertical Dimension of Occlusion (VDO): Review

In this review, we have concluded that a permanent increase in the VDO, once indicated, is a safe procedure for dentulous patients.

Effect of increasing occlusal vertical dimension on lower ...

Sun et al 22 demonstrated that digitally increasing the occlusal vertical dimension (OVD) improves lower facial form and aesthetics, counteracting the sunken ...

A Literature Review of Vertical Dimension in Prosthodontics ...

The occlusal vertical dimension in prosthodontics refers to the measurement of the height of the lower face when the upper and lower teeth are ...

Vertical Dimension in Prosthodontics Theory and Practice ( ...

The vertical dimension (VD) is defined as the measurement of the face between two selected anatomic or marked points (usually one on the tip of ...

Increased Occlusal Vertical Dimension and Its Influence on ...

Results: The study's results demonstrate that increasing the OVD significantly affects the inter labial distance, incisal edge to lower lip distance, and the ...

Safe clinical technique for increasing the occlusal vertical ...

A safe method to increase the occlusal vertical dimension (OVD) in patients with mild temporomandibular symptoms (such as tenderness upon ...

Effect Of Occlusal Vertical Dimension On Lip Positions At Smile

For mean MIP changes, a 8mm increase in OVD resulted in a change of appximately 4mm. The changes in lower face height were evaluated by dentists and non- ...

The Vertical Dimension of Occlusion. How to Determine ...

Purpose: The aim of this systematic review was to explore the dental literature to identify high quality clinical studies that introduced ...

Increasing Vertical Dimension of Occlusion (VDO): Review

In this review, we have concluded that a permanent increase in the VDO, once indicated, is a safe procedure for dentulous patients. However, it ...