29th Congress of the Balkan Stomatological Society, Belgrade, Sırbistan, 24 - 26 Nisan 2025, ss.417, (Özet Bildiri)
Objective: Dental age serves as a critical metric in determining the biological age of individuals and is frequently utilized in forensic and clinical research. The present study aimed to evaluate the implementation and accuracy of Nolla and Demirjian methods in assessing dental development among 6-year-old children residing in the eastern region of Türkiye, specifically focusing on dentition of the left mandibular region.
Methods: The orthopantomographic radiographs from 190 patients (104 males, 86 females) chronologically aged 6 years, who presented to the Department of Pedodontics, Faculty of Dentistry, Atatürk University, for examination between January 1, 2024, and May 31, 2024, were analyzed. The teeth in the left mandibular region were individually classified according to the calcification stages described by Nolla and Demirjian. The obtained data were statistically analyzed using Pearson’s ChiSquare test and Wilcoxon test, with a significance level set at p<0.05.
Results: Age estimations performed using Nolla and Demirjian methods revealed differences of 0.81 ± 0.49 years and 0.27 ± 0.51 years, respectively (p<0.05). Additionally, low but statistically significant correlations were identified (p<0.001). Weaker correlations between the age estimation methods were observed in males, while stronger and statistically significant correlations were found among females. Demirjian method was determined to be more consistent compared to Nolla method for both genders.
Conclusion: The accuracy of age estimation methods may vary based on gender, highlighting potential differences in biological age assessment techniques across sexes. These results emphasize the importance of gender-specific evaluations when using dental development-based age estimation methods.
Keywords: Demirjian Method, Nolla Method, Dental Age, Turkish Children