Accuracy of Photogrammetric Three-Dimensional Facial Models Reconstruction Compared With Direct Anthropometry

Completed

• Conditions: Dental Malocclusion; Diagnosis; Facial Asymmetry

• Registration Number: NCT06897852
• Lead Sponsor: Al-Azhar University

Brief Summary

Accuracy of Two Different Photogrammetric Software for Three Dimensional Facial Model Reconstructions Compared with Direct Facial Anthropometry.

Detailed Description

Not available

Study Timeline

• Study First Submitted: 2023-07-17
• Study Start: 2024-09-01
• Primary Completion: 2024-11-01
• Study Completion: 2025-01-01
• Status Verified: 2025-03
• Study First Submitted QC: 2025-03-20
• Last Update Submitted: 2025-03-20
• Study First Posted: 2025-03-27
• Last Update Posted: 2025-03-27

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 50

Inclusion Criteria

• Participants aged 18 or older

Exclusion Criteria

• Presence of:

  1. Extensive facial hair (beards).
  2. Significant facial defects.
  3. Surgical scars.
  4. Neuromuscular disorders that may hinder stability of head during image acquisition.
  5. Accessories that could interfere with image acquisition.

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Accuracy of Photogrammetry in Generating 3D Facial Models - Linear Measurements	Baseline (procedure)	* A 3D model was generated for each volunteer using photogrammetry software. Anthropometric linear measurements was taken using a digital caliper, and photogrammetric linear measurements was extracted from the 3D model.; * Two LEGO® blocks with uniform dimensions were attached to the participants' faces to scale the 3D model to actual metric dimensions.; Unit of Measure: millimeters(mm)
Accuracy of Photogrammetry in Generating 3D Facial Models - Angular Measurements	Baseline (procedure)	* This outcome measure focuses on the accuracy of photogrammetry in capturing and reproducing angular measurements of facial features.; * Volunteers' 3D facial models were generated using photogrammetry software from multiple photos.; * Two LEGO® blocks with uniform dimensions were attached to the forehead and cheek for scaling and reference. Angular measurements, based on these blocks, were extracted from the 3D model. The measurements were compared to validate the method's precision in reproducing angular dimensions.; Unit of Measure: Degrees (°)

Trial Locations

Locations (1)

Faculty of Dental Medicine, Al-Azhar University; 🇪🇬 Assiut, Egypt