The Facial Muscular Activity: A Paradigm for Understanding Facial Asymmetry
1 other identifier
observational
100
1 country
1
Brief Summary
Facial asymmetry, the degree to which the two sides of the face differ in size, shape, or the arrangement of features, is a near-universal human characteristic. The intricate network of facial muscles plays a crucial role in both the static structure and the dynamic expressions of the face. The continuous pull and action of facial muscles can influence the development and positioning of underlying soft tissues and even, over extended periods, potentially impact skeletal structures.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at P50-P75 for all trials
Started Jun 2025
Shorter than P25 for all trials
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
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Study Timeline
Key milestones and dates
First Submitted
Initial submission to the registry
May 20, 2025
CompletedStudy Start
First participant enrolled
June 1, 2025
CompletedFirst Posted
Study publicly available on registry
June 6, 2025
CompletedPrimary Completion
Last participant's last visit for primary outcome
July 1, 2025
CompletedStudy Completion
Last participant's last visit for all outcomes
August 1, 2025
CompletedJune 6, 2025
May 1, 2025
1 month
May 20, 2025
May 29, 2025
Conditions
Outcome Measures
Primary Outcomes (2)
Facial Electromyography (EMG)
Day 1
Facial Asymmetry Measurement
assesses differences between the two sides of the face using various techniques, both two-dimensional (2D) and three-dimensional (3D)
Day 1
Secondary Outcomes (1)
Demographic and Clinical Data
Day 1
Study Arms (2)
group A
people with facial asymmetry
Group B
control group of healthy normal people
Eligibility Criteria
Presenting with noticeable facial asymmetry.
You may qualify if:
- Presenting with noticeable facial asymmetry
- Age \> 16 years
- General good health
- Absence of specific neurological conditions affecting facial muscles.
- Absence of congenital facial disorders that might cause facial asymmetry, like hemifacial microsomia and cleft lip and palate syndromes.
You may not qualify if:
- History of facial trauma or surgery
- Diagnosed Neuromuscular Disorders
- Active facial infections.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
Study Sites (1)
orthodontic outpatient clinic, and students at Faculty of Dentistry, Alsalam University, Egypt
Tanta, Tanta, Egypt
Related Publications (2)
4. Kowner, R. (1996). Facial asymmetry and attractiveness judgment in Western and Japanese cultures. Journal of Social Behavior and Personality, 11(2), 301-314.
BACKGROUNDFerrario VF, Dellavia C, Tartaglia GM, Turci M, Sforza C. Soft tissue facial morphology in obese adolescents: a three-dimensional noninvasive assessment. Angle Orthod. 2004 Feb;74(1):37-42. doi: 10.1043/0003-3219(2004)0742.0.CO;2.
PMID: 15038489BACKGROUND
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Central Study Contacts
Nehad A. Abo-zaid, PhD
CONTACT
Study Design
- Study Type
- observational
- Observational Model
- COHORT
- Time Perspective
- PROSPECTIVE
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Lecturer of Physical Therapy for surgery
Study Record Dates
First Submitted
May 20, 2025
First Posted
June 6, 2025
Study Start
June 1, 2025
Primary Completion
July 1, 2025
Study Completion
August 1, 2025
Last Updated
June 6, 2025
Record last verified: 2025-05