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Radio-morphologic assessment of dental formation leading to permanent teeth and third molar age estimation models
R Pinto1, R Cordeiro1, Z Galego1
1Division of Forensic Dentistry, Faculdade São Leopoldo Mandic, Campinas, São Paulo, Brazil.
Summary
This study developed accurate dental age estimation models for children and adolescents using radiographic analysis of permanent teeth and third molars. These models aid in clinical and forensic age assessments.
Area of Science:
- Forensic Anthropology
- Pediatric Dentistry
- Radiology
Background:
- Accurate age estimation in subadults is crucial for clinical and forensic applications.
- Dental development, eruption, and exfoliation provide reliable indicators for age assessment.
Purpose of the Study:
- To evaluate dental development, eruption, and exfoliation chronologies using radiographic analysis.
- To propose novel dental age estimation models based on permanent teeth and third molar development.
Main Methods:
- Analysis of panoramic radiographs from individuals aged 6 to 22.9 years.
- Utilized established staging systems for deciduous and permanent teeth, including third molars.
- Developed separate age estimation models for permanent teeth and third molars.
Main Results:
- Models demonstrated high accuracy: r² of 0.94 (maxillary), 0.95 (mandibular), and 0.93 (third molars).
- Mean absolute errors were approximately 0.6 years for permanent teeth and 0.93 years for third molars.
- The models provide a framework for evaluating subadult age.
Conclusions:
- The developed dental age estimation models are accurate and reliable for subadult populations.
- These models can be applied in legal and anthropological contexts requiring precise age assessments.
- Further validation in diverse populations is recommended for broader applicability.
