Forensic age assessment based on age-related changes in maxillofacial bones using CBCT
10.13618/j.issn.1001-5728.2025.02.009
- VernacularTitle:颌面部骨骼CBCT增龄性变化的法医学年龄推断
- Author:
Shoutao NI
1
;
Di SHAN
;
Jilong ZHENG
;
Yang LI
;
Chaopeng YANG
;
Weibo CAO
;
Guanglong HE
Author Information
1. 中国人民公安大学,北京 100038;济南铁路公安局青岛公安处,山东 青岛 266000
- Publication Type:Journal Article
- Keywords:
Forensic science;
Forensic Anthropology;
CBCT;
Age inference
- From:
Chinese Journal of Forensic Medicine
2025;40(2):181-187,193
- CountryChina
- Language:Chinese
-
Abstract:
Objective To establish a forensic age inference method based on age-related changes in maxillofacial CBCT imaging of Han population in North China.Methods CBCT imaging data of Han people aged 7～50 years were collected from September 2021 to September 2023.Mimics 17.0 software was used to perform 3D reconstruction on 480 cases that met the inclusion criteria(420 cases in the experimental group,60 cases in the blind test group,with a 50%male-to-female ratio)and obtain measured values for 16 indicators.The data were then statistically analyzed using SPSS 27.0 to identify age-related significant indicators and establish regression equations.Results Regression equations based on age-related significant indicators were established for different genders and age intervals.The accuracy of the equations decreased as the age interval increased.The blind test accuracy rates of regression equations for males across different age groups ranged between 62.6%and 80.6%,while for females,they ranged between 55.3%and 76.6%.Conclusion This study enriches maxillofacial skeletal data for Chinese population and establishes multivariate age inference regression equations based on significant indicators of age-related changes in maxillofacial CBCT,providing a new reference basis and inference method for forensic age assessment.
