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OpenTrials
Completed

NCT Number: NCT06897852

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

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

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Key information

Conditions

Dental Malocclusion Diagnosis Disease Facial Asymmetry Malocclusion Pathologic Processes Pathological Conditions, Anatomical Pathological Conditions, Signs and Symptoms Stomatognathic Diseases Tooth Diseases

Age range

18 year and older

Sex eligibility

All sexes

Study type

Observational

Primary location

Faculty of Dental Medicine, Al-Azhar University

Asyut, Egypt

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Participants aged 18 or older

Exclusion criteria

  • Presence of:
  • Extensive facial hair (beards).
  • Significant facial defects.
  • Surgical scars.
  • Neuromuscular disorders that may hinder stability of head during image acquisition.
  • Accessories that could interfere with image acquisition.

Treatment and study plan

Primary outcomes

  1. Accuracy of Photogrammetry in Generating 3D Facial Models - Linear Measurements

    Time frame: 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)

  2. Accuracy of Photogrammetry in Generating 3D Facial Models - Angular Measurements

    Time frame: 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 (°)

Sponsors and collaborators

Lead sponsor

Al-Azhar University

Other

Registry information

Important dates

Study start
2024
Primary completion
2024
Study completion
2025
First posted
Mar 27, 2025
Registry last updated
Mar 27, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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