Accuracy of dental age estimation in venezuelan children using the Nolla method
DOI:
https://doi.org/10.47990/alop.v3i2.38Keywords:
Age Estimation, Childrens, Panoramic radiographycAbstract
Dental age is a somatic maturation indicator with clinical importance for treatment planning in the growing patient. The purpose of this study is to determine the accuracy of the method proposed by Nolla for dental age assessment in a group of Venezuelan children from the Caracas Metropolitan area. Methods and materials: Good quality panoramic radiographs of 238 Venezuelan children aged 5-13 years were used to assess dental age using the method described by Nolla. The sample was stratified by age and gender. Mean differences between dental age and chronological age by gender and age groups were estimated (Perason´s correlation, ANOVA, Student tests p=0.05). Intraobservar Kappa was 0.68. Results: Correlation between chronological and dental age was 0.92 (p=0.01). Dental maturation was delayed in boys when compared to girls, with statistical significance for canines and maxillary first premolar. Difference between dental age and chronologic showed underestimation of -0.88 ± 0.94 (p=0.01) which was statistically significant for the entire study group. Underestimation was larger for females (-1.04 ± 0.93 years) than for males (-0.72 ± 0.94 years). Conclusion: The Nolla method may be accurately used for identifying dental formation stages by age group in Venezuelan children, but lacks accuracy for determining dental age, as underestimation was statistically significant for this study group.
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