NCT06984666

Facial Aesthetic Analysis Model Based on Clinical Cohort Phenotype to Explore 45° Facial Profile.

The Perception of Lower Third of the Face Combined With Digital Virtual Models and the Clinical Phenotype at 45° Viewing Angle : a Clinical Study

• Status: Enrolling By Invitation
• Phase: N/A
• Study type: Interventional
• Enrollment: 80 (estimated)
• Sponsor: Linyu Xu · Academic / Other
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: Accepted

Summary

Facial aesthetics has always been a complex and subjective concept. The overall facial harmony, along with lip protrusion, which is often a focus for orthodontists, requires evaluation from multiple perspectives. The viewing angle also influences the assessment of facial aesthetics, particularly the judgment of lip protrusion. This study aims to explore the differences in facial fixation patterns and aesthetic evaluations among different populations at specific viewing angles by using digital models to simulate various perspectives.

Detailed description

In the analysis of facial aesthetics, the 45° profile has a unique advantage in evaluating lip protrusion, zygomatic fullness, and contour curve. Compared to the frontal view, this angle provides a more three-dimensional and deeper perspective. In a previous study, the research group found that the shape of the midface area at 45° influences the evaluation of lip protrusion. In this study, a digital model was used to simulate the protrusion of different midface areas in order to explore the differences in facial fixation patterns and aesthetic evaluations among various individuals at 45°. Based on data from individuals who showed significant improvement in frontal and profile beauty before and after clinical treatment, the study added an evaluation of beauty and lip position from the 45° profile. This aims to provide a reference for the subsequent establishment of a 45° profile analysis.

Conditions

• Malocclusion, Angle Class II
• Malocclusion, Angle Class III

Interventions

Type	Name	Description
BEHAVIORAL	language	Language cues are used to provide participants with psychological suggestions in order to achieve the goal of shifting their focus in gaze patterns.

Timeline

• Start date: 2024-10-01
• Primary completion: 2026-07-31
• Completion: 2027-07-31
• First posted: 2025-05-22
• Last updated: 2025-05-22

Locations

1 site across 1 country: China