Accuracy comparison of tooth volume and mesiodistal diameter measurements for sex dimorphism based on cone-beam computed tomography

A study for the northern Chinese population

Bibliographic Data

ID13119680
AuthorsWen-Qing Bu (0009-0006-3412-680X, Xi'an Jiaotong University), Wenqing Bu (Xi'an Jiaotong University), Lingling Ji (0000-0003-2500-1993, Xi'an Jiaotong University), Mengqi Han (0000-0001-9662-5061, Xi'an Jiaotong University), Zixuan Wu (0009-0006-4745-0000, Xi'an Jiaotong University), Badr Sultan (Xi'an Jiaotong University), Teng Chen (0000-0001-6428-7790, Xi'an Jiaotong University), Yu Tang (0000-0001-5231-6347, Xi'an Jiaotong University), Yu-cheng Guo (0000-0002-5820-2444, Xi'an Jiaotong University, corresponding author), Yucheng Guo (Xi'an Jiaotong University), Fei Wang (0000-0003-0860-6317, Xi'an Jiaotong University, corresponding author)
Year2023
Volume8
Issue2
Pages133-139
Publication date2023-02-20
Peer ReviewedYes
Open AccessYes
TypeARTICLE
VenueForensic Sciences Research (JOURNAL)
Journal identifiersISSN: 2471-1411 • E-ISSN: 2096-1790
PublisherTaylor & Francis (PUBLISHER • GB)
DOI10.1093/fsr/owad004
PMID37621453
OpenAlexW4321371610
LanguageEN
Citations received1
References cited34

Sex estimation based on teeth could help to narrow the scope for individual identification. According to the different teeth morphology among both genders, we plan to establish a sex estimation method for the northern Chinese population through mesiodistal diameter and teeth volume measurements and compare the accuracy of the two methods. In this study, measurements were taken from cone-beam computed tomography images collected from 142 males and 140 females aged 21-59 years. The mesiodistal diameter and volume of the left canines and the first molars in both upper and lower jaws were measured and analyzed for suitable coefficients. We selected 80% samples as the training set to set up the logistic regression formulas and 20% as the test set to obtain accuracy. The accuracy of sex estimation by mesiodistal diameter can reach 87.50%, and the volume is up to 78.57%. The measurement of mesiodistal diameter is less time-consuming. This work established and tested a method to estimate sex for the northern Chinese population. Results showed that sex estimation based on the mesiodistal diameter of teeth has higher accuracy than the method based on teeth volume

Biology · Computed tomography · Cone beam computed tomography · Estimation · Population · Sexual dimorphism · Statistics · Volume (thermodynamics · dental development and anomalies · Dental Radiography and Imaging · Forensic Anthropology and Bioarchaeology Studies · Mathematics · Medicine · Orthodontics · Surgery