TY - JOUR
T1 - Regressive changes of crown‐root morphology and their volumetric segmentation for adult dental age estimation
AU - Merdietio Boedi, Rizky
AU - Shepherd, Simon
AU - Oscandar, Fahmi
AU - Manica, Scheila
AU - Franco, Ademir
N1 - Funding information:
Ministry of Education and Culture, Universitas Diponegoro, Grant/Award Number: 497/UN7.P/HK/2021.
PY - 2022/9
Y1 - 2022/9
N2 - Cone-beam computed tomography (CBCT) enables the assessment of regressive morphological changes in teeth, which can be used to predict chronological age (CA) in adults. As each tooth region is known to have different correlations with CA, this study aimed to segment and quantify the sectional volumes of the tooth crown and root from CBCT scans to test their correlations with the chronological age (CA). Seventy-five CBCT scans from individuals with age between 20 and 60 years were collected retrospectively from an existing database. A total of 192 intact maxillary anterior teeth fulfilled the eligibility criteria. The upper tooth volume ratio (UTVR), lower tooth volume ratio (LTVR), and sex were used as predictor variables. The UTVR and LTVR parameters were both found to be differently correlated to CA and independent from each other. Regression models were derived from each tooth, with the highest R2 being the maxillary lateral incisor (R2 = 0.67). Additional single predictor models using each ratio were capable of reliably predicting the CA. The segmentation approach in volumetric adult dental age estimation proved to be beneficial in enhancing the reliability of the regression model.
AB - Cone-beam computed tomography (CBCT) enables the assessment of regressive morphological changes in teeth, which can be used to predict chronological age (CA) in adults. As each tooth region is known to have different correlations with CA, this study aimed to segment and quantify the sectional volumes of the tooth crown and root from CBCT scans to test their correlations with the chronological age (CA). Seventy-five CBCT scans from individuals with age between 20 and 60 years were collected retrospectively from an existing database. A total of 192 intact maxillary anterior teeth fulfilled the eligibility criteria. The upper tooth volume ratio (UTVR), lower tooth volume ratio (LTVR), and sex were used as predictor variables. The UTVR and LTVR parameters were both found to be differently correlated to CA and independent from each other. Regression models were derived from each tooth, with the highest R2 being the maxillary lateral incisor (R2 = 0.67). Additional single predictor models using each ratio were capable of reliably predicting the CA. The segmentation approach in volumetric adult dental age estimation proved to be beneficial in enhancing the reliability of the regression model.
KW - cone-beam computed tomography
KW - dental age estimation
KW - forensic dentistry
KW - root resorption
KW - secondary dentin
KW - tooth attrition
UR - http://www.scopus.com/inward/record.url?scp=85133902346&partnerID=8YFLogxK
U2 - 10.1111/1556-4029.15094
DO - 10.1111/1556-4029.15094
M3 - Article
C2 - 35819122
SN - 0022-1198
VL - 67
SP - 1890
EP - 1898
JO - Journal of Forensic Sciences
JF - Journal of Forensic Sciences
IS - 5
ER -