Examinando por Materia "Nolla method"

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    Comparison of the Nolla and Demirjian methods in the estimation of dental age in children, Period 2020
    (Universidad Privada Norbert Wiener, 2022-08-15) Perez Rojas, Talia; Garavito Chang, Enna Lucila
    The aim of this research was to compare dental age estimation using the Nolla and Demirjian methods in patients aged 6 to 12 years. The study was observational, descriptive, cross-sectional, and retrospective. The study population consisted of 278 digital panoramic radiographs. The technique used was observation, and data were collected in a data collection sheet, including radiograph number, sex, age, and analysis of Nolla and Demirjian methods, as applicable. The dental age estimation according to the Nolla method showed different values from chronological age with average values for the entire sample of 8.34±1.16. For the 7-year-old group: 6.52±0.8; 8 years (6.88±0.51); 9 years (7.52±0.49); 10 years (8.29±1.22); 11 years (8.78±0.57) and 12 years (9.44±0.34). The dental age estimation according to the Demirjian method showed different values from chronological age with average values for the entire sample of 9.47±1.88. However, within each group, the values were closer to chronological age, with the 7-year-old group: 6.60±1.0; 8 years (7.46±1.03); 9 years (7.82±1.02); 10 years (9.02±0.95); 11 years (10.27±1.33) and 12 years (11.77±1.10). It was concluded that when comparing chronological age with dental age, statistically significant differences were found with the age estimated by the Nolla method (p<0.0001) and also with dental age using the Demirjian method (p<0.0001).