利用锥形束计算机断层扫描对牙齿进行容积分析以估算年龄

IF 1.6 3区 医学 Q3 DENTISTRY, ORAL SURGERY & MEDICINE
Ana Beatriz Raposo Souza, Adriana Dibo Cruz, Marcelo Freitas Aguiar
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引用次数: 0

摘要

方法在获得伦理委员会的批准后,研究开始采用纳入标准对 CBCT 扫描进行筛选,最终确定了一个基于概率的样本,参与者年龄在 18 岁及以上(从 18 岁到 82 岁不等,平均年龄为 46.44 岁)。根据极佳的一致性值(> 0.9),共选择了 517 颗单根牙齿,包括上颌中切牙(CI)、下颌犬齿(C)和下颌第一前磨牙(FP)。使用 ITK-SNAP 3.8 软件进行半自动分段,测量 Pv 和 Tv。使用 Jamovi 软件进行统计分析,显著性水平设定为 5%(α = 0.05)。结果 在所有受检牙齿中,观察到年代年龄与 Pv:Tv 比率之间存在较强的负相关(r > -0.7)。然而,当以 Pv:Tv 数据和年龄作为自变量进行回归分析时,只有下颌 FP 牙呈现正态分布。由此得出的线性模型在解释年代年龄的变异方面显示出适度的预测价值(约 64%),但在解释这些结果时应谨慎。结论在巴西人口样本中,使用 CBCT 测量单个牙齿体积以通过 Pv:Tv 估算年代年龄的方法被证明是有效和可重复的。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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

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

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.

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来源期刊
Oral Radiology
Oral Radiology DENTISTRY, ORAL SURGERY & MEDICINE-
CiteScore
4.20
自引率
13.60%
发文量
87
审稿时长
>12 weeks
期刊介绍: As the official English-language journal of the Japanese Society for Oral and Maxillofacial Radiology and the Asian Academy of Oral and Maxillofacial Radiology, Oral Radiology is intended to be a forum for international collaboration in head and neck diagnostic imaging and all related fields. Oral Radiology features cutting-edge research papers, review articles, case reports, and technical notes from both the clinical and experimental fields. As membership in the Society is not a prerequisite, contributions are welcome from researchers and clinicians worldwide.
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