Accuracy of age estimation of radiographic methods using developing teeth.

Area of Science:

• Forensic Anthropology
• Pediatric Dentistry
• Human Biology

Background:

• Dental development is crucial for age estimation across various scientific disciplines.
• Systematic investigation into the accuracy of different dental age assessment methods is lacking.
• Accurate age estimation is vital in forensic science, anthropology, and pediatric health assessments.

Purpose of the Study:

• To systematically evaluate and compare the accuracy of multiple dental age estimation methods.
• To determine the most reliable method for assessing dental maturity in children aged 3-16.99 years.
• To analyze the performance of specific teeth within a method for improved age estimation.

Main Methods:

• Radiographic assessment of tooth formation in 946 children (Bangladeshi and British Caucasian) aged 3-16.99 years.
• Application of Demirjian's, Nolla's, and Haavikko's dental maturity scales.
• Calculation and comparison of mean differences between dental age and chronological age for each method, including an adapted Demirjian method (Willems).

Main Results:

• The Willems method demonstrated the highest accuracy, with minimal mean age differences (-0.12 years).
• Demirjian's method overestimated age (0.24 years), while Nolla (-1.02 years) and Haavikko (-0.67 years) underestimated age.
• For the Haavikko method, individual teeth (first premolar, second molar) showed higher accuracy than the mean of all developing teeth.

Conclusions:

• The Willems adaptation of Demirjian's method is the most accurate for dental age estimation in the studied population.
• Significant variations in accuracy exist among different dental age assessment methods.
• Utilizing specific developing teeth may offer more precise age estimations than composite methods in certain scenarios.