Examinando por Materia "Demirjian method"

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    ÍtemAcceso abierto
     
    (Universidad Privada Norbert Wiener, 2017) Yarleque Medina, Diana Ynes; Mezzich Gálvez, Jorge Luis
    The study was cross-sectional, descriptive, and retrospective. It was conducted using a total of 264 digital panoramic radiographs, with 116 from males and 148 from females, employing the Demirjian method to estimate dental age based on the inclusion and exclusion criteria established for the study, obtained from the Dental Imaging Center. The method is based on developmental stages by observing the mineralization state of the 7 lower left dental pieces and the score given based on the mineralization stage of each piece according to the Demirjian method. Results: A difference between dental age and chronological age was observed, with boys being 1.04 years ahead of their chronological age and girls being 0.9 years ahead. Conclusion: It was concluded that the Demirjian method provided better results for estimating dental age in the female population.
  • Miniatura
    ÍtemAcceso abierto
    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).