Radiographic dental age estimation applying and comparing Demirjian's seven (1973) and four (1976) teeth methods

TY - JOUR

T1 - Radiographic dental age estimation applying and comparing Demirjian's seven (1973) and four (1976) teeth methods

AU - Cidade, Rafael

AU - Dos Santos, Marcelo

AU - Alves, Thaís Cássia

AU - Bueno, Juliano Martins

AU - Soares, Mariana

AU - Arakelyan, Mariana

AU - Junqueira, José Luiz Cintra

AU - Franco, Ademir

N1 - Copyright: © 2023. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature.

PY - 2023/6

Y1 - 2023/6

N2 - To apply Demirjian's seven (1973, D7) and four (1976, D4) teeth methods in a sample of Brazilian children and compare their performances for age estimation. Panoramic radiographs of 1200 children (600 females and 600 males) were collected from Southeast Brazil. The children were equally distributed (n = 60 females and 60 males) between age intervals of 1 year between 6 and 15.9 (mean age = 10.9; standard deviation [SD]: 2.9) years. D7 and D4 dental age estimation methods were applied by two observers and were compared based on their error rates (error = estimated age-chronological age). Both methods overestimated the chronological age (p < 0.0001). D7 led to overestimations of 0.71 (p < 0.0001) in females and 0.83 (p < 0.0001) in males, while the overestimations with D4 were 0.14 (p = 0.0067) and 0.73 (p < 0.0001) for females and males, respectively. The mean age estimated by D7 was 11.7 (SD: 3.1) years, while for D4, it was 11.3 (SD: 3.3) years. Intra- and interobserver agreement was ≥ 0.98. D4 optimized the performance of radiographic dental age estimation compared to D7. Improvements were reflected in the total sample and separately for female and male children from Southeast Brazil.

AB - To apply Demirjian's seven (1973, D7) and four (1976, D4) teeth methods in a sample of Brazilian children and compare their performances for age estimation. Panoramic radiographs of 1200 children (600 females and 600 males) were collected from Southeast Brazil. The children were equally distributed (n = 60 females and 60 males) between age intervals of 1 year between 6 and 15.9 (mean age = 10.9; standard deviation [SD]: 2.9) years. D7 and D4 dental age estimation methods were applied by two observers and were compared based on their error rates (error = estimated age-chronological age). Both methods overestimated the chronological age (p < 0.0001). D7 led to overestimations of 0.71 (p < 0.0001) in females and 0.83 (p < 0.0001) in males, while the overestimations with D4 were 0.14 (p = 0.0067) and 0.73 (p < 0.0001) for females and males, respectively. The mean age estimated by D7 was 11.7 (SD: 3.1) years, while for D4, it was 11.3 (SD: 3.3) years. Intra- and interobserver agreement was ≥ 0.98. D4 optimized the performance of radiographic dental age estimation compared to D7. Improvements were reflected in the total sample and separately for female and male children from Southeast Brazil.

KW - Age

KW - Forensic dentistry

KW - Growth and development

KW - Radiology

KW - Teeth

UR - https://www.scopus.com/pages/publications/85164261732

U2 - 10.1007/s12024-022-00563-5

DO - 10.1007/s12024-022-00563-5

M3 - Article

C2 - 36806081

SN - 1547-769X

VL - 19

SP - 175

EP - 183

JO - Forensic Science, Medicine, and Pathology

JF - Forensic Science, Medicine, and Pathology

ER -