Age estimation by volumetric analysis of teeth using cone beam computed tomography.

Autor: Souza ABR; Graduate Program in Dentistry, Fluminense Federal University, Health Institute of Nova Friburgo, Nova Friburgo, RJ, Brazil., Cruz AD; Graduate Program in Dentistry, Fluminense Federal University, Health Institute of Nova Friburgo, R. DR. Silvio Henrique Braune, 22 Centro, Nova Friburgo, RJ, CEP: 28625-650, Brazil. adrianadibo@id.uff.br., Aguiar MF; Department of Specific Formation, Fluminense Federal University, Health Institute of Nova Friburgo, Nova Friburgo, RJ, Brazil.
Jazyk: angličtina
Zdroj: Oral radiology [Oral Radiol] 2024 Jul; Vol. 40 (3), pp. 436-444. Date of Electronic Publication: 2024 Apr 08.
DOI: 10.1007/s11282-024-00750-w
Abstrakt: Objectives: To evaluate the feasibility of using the pulp volume (Pv) to total volume (Tv) ratio (Pv:Tv), obtained from cone beam computed tomography (CBCT) scans of single-rooted teeth, for age estimation in a Brazilian population sample.
Methods: After obtaining approval from the ethics committee, the study commenced by applying inclusion criteria to screen CBCT scans, resulting in a probability-based sample of participants aged 18 years and older (ranging from 18 to 82 years, with a mean age of 46.44 years). A total of 517 single-rooted teeth, including maxillary central incisors (CI), mandibular canines (C), and mandibular first premolars (FP), were chosen based on excellent agreement values (> 0.9). Pv and Tv measurements were conducted using semi-automatic segmentation with ITK-SNAP 3.8 software. Statistical analysis was performed using Jamovi software, with a significance level set at 5% (α = 0.05).
Results: A strong negative correlation (r > -0.7) was observed between chronological age and the Pv:Tv ratio across all examined teeth. However, when conducting regression analysis with Pv:Tv data and chronological age as the independent variable, only the mandibular FP teeth exhibited a normal distribution. The resulting linear model demonstrated moderate predictive value (approximately 64%) in explaining the variance in chronological age, but caution should be exercised when interpreting these findings.
Conclusions: The method of measuring individual tooth volume using CBCT to estimate chronological age via Pv:Tv has been demonstrated as effective and reproducible within the Brazilian population sample.
(© 2024. The Author(s) under exclusive licence to Japanese Society for Oral and Maxillofacial Radiology.)
Databáze: MEDLINE
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