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Forensic Dental Age Estimation : Validation of Computed Tomography for Third Molar Demirjian's Staging

Forensic Dental Age Estimation : Validation of Computed Tomography for Third Mandibular Molar Demirjian's Staging Method in a 0- 25 Years French Living Population

Status
UNKNOWN
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT04907552
Acronym
SCAO
Enrollment
557
Registered
2021-05-28
Start date
2020-11-01
Completion date
2022-11-30
Last updated
2021-05-28

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Mandible Fracture

Keywords

Dental age estimation, CT scan, dental panoramic, Validation CT scan, Radiography

Brief summary

Age can be estimated in different ways by using skeletal age and dental age. Currently, bone age is determine thanks to the wrist x-rayed, and the dental age using variation in mineralization (Demirjian's score) on the dental panoramic (Mincer 1993). More recently, reviews indicate the Computed tomography (CT) scan of the medial clavicular epiphysics can contribute to improve the accuracy of individual's age estimation (Houpert, 2016). Furthermore, with the recent advances, the very low dose CT scan acquisitions can be perform with sufficient quality for the teeth analysis. The goal of this study is to validate the use of dental CT for Demirjdian's staging method.

Interventions

None listed

Sponsors

University Hospital, Montpellier
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
0 Years to 25 Years
Healthy volunteers
No

Inclusion criteria

* Patient aged between 0 and 25 years old * Complete dental panoramic * CT scan including mandible and maxilla * Maximum of 2 months between CT scan and dental panoramic * Medical imaging available on the PACS

Exclusion criteria

* Medical imaging missing on the PACS * Patient refuses to participate

Design outcomes

Primary

MeasureTime frameDescription
weighted Kappa test between CT scanday 1weighted Kappa test between CT scan and dental panoramic assessment of Demirjian's staging of third mandibular molar

Secondary

MeasureTime frameDescription
Mineralization differenceday 1Mineralization difference between mandibular and maxillar third molar
Dental age estimation in a south french populationday 1Dental age estimation in a south french population

Countries

France

Contacts

Primary ContactCatherine CYTEVAL, MD.PhD
c-cyteval@chu-montpellier.fr04 67 33 81 78

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026