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Reproducibility of Dental Bite Mark Overlay Analysis Using Digital 3D Models in Adult Participants

NCT07552051 · Status: NOT_YET_RECRUITING · Type: OBSERVATIONAL · Enrollment: 30

Last updated 2026-04-27

No results posted yet for this study

Summary

This study aims to evaluate the reproducibility and repeatability of a standardized digital overlay protocol used in forensic odontology for bite mark analysis. Bite mark analysis methods have been increasingly questioned due to concerns about their scientific reliability. This study focuses on the methodological evaluation of an overlay generation protocol independently of biological trace interpretation.

Thirty adult participants requiring routine dental care involving intraoral scanning will be included. A digital impression of the maxillary dentition will be obtained using a standard intraoral scanner, which is a non-invasive and routine clinical procedure.

Digital dental models will be anonymized and processed using dedicated software to generate overlays. Four operators with different levels of expertise will independently perform the overlay procedure at two separate time points.

The study will assess intra-operator repeatability and inter-operator reproducibility using quantitative 2D and 3D metrics. The objective is to determine the variability of the protocol and to contribute to the standardization and reliability of overlay-based analyses in forensic dentistry.

Conditions

  • Forensic Dentistry
  • Bite Mark Analysis

Interventions

OTHER

3D Digital Model Overlay Analysis

Standardized overlay protocol applied to digital dental models (STL/PLY files). Each model is analysed twice by each of four operators at two separate time points (T1 and T2) to assess intra- and inter-operator reproducibility.

Sponsors & Collaborators

  • Nantes University Hospital

    lead OTHER

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2026-04-30
Primary Completion
2027-06-30
Completion
2027-06-30

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07552051 on ClinicalTrials.gov