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      Comparación entre edad cronológica y dental según tres métodos de estimación en una población peruana. Translated title: Comparison between chronological and dental ages according to three estimation methods in a Peruvian population.

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          Abstract

          Resumen Las técnicas de estimación de edad dental tienen gran importancia en la evaluación odontológica, específicamente en el área de ortodoncia, académica y forense. El objetivo de este estudio fue comparar la edad dental según los métodos de Demirjian, Nolla y Cameriere con la edad cronológica en una población peruana. El diseño del estudio es de tipo observacional, descriptivo, de corte transversal y retrospectivo; tuvo una población total de 578 radiografías panorámicas de sujetos de 6 a 14 años, en las cuales se calculó la diferencia de medias de un estudio previo y, finalmente, fueron seleccionadas 193 de forma aleatoria. Se compararon la edad cronológica (EC) y la edad dental (ED) según los métodos de Nolla, Demirjian y Cameriere, utilizando las Pruebas de Rangos de Wilcoxon y Kruskall Wallis. Las medias de la EC fueron de 8,77±2,34 y 8,90±2,04 años para el género femenino y masculino, respectivamente. Las diferencias de medias de la EC y ED, de acuerdo con los métodos Nolla, Demirjian y Cameriere, fue de -0,38, 0,96 y -0,29 años, respectivamente, para la muestra total de estudio. Se encontró una correlación positiva para los tres métodos estudiados; sin embargo, el método de Demirjian mostró una diferencia estadísticamente significativa con una subestimación de -0,91 años en la muestra total. Asimismo, el método de Cameriere fue el que tuvo más cercanía a la edad cronológica.

          Translated abstract

          Abstract Dental age estimation techniques have great importance in dental evaluation, specifically in the orthodontic, academic, and forensic areas. The aim of this study was to compare the dental age according to the Demirjian, Nolla and Cameriere methods with the chronological age in a Peruvian population. This is an observational, descriptive, retrospective and cross-sectional study, which had a total population of 578 panoramic radiographs of subjects aged 6 to 14 years, where the difference in means from a previous study was calculated, and 193 subjects were finally randomly selected. The chronological ages (CA) and dental ages (DA) were compared using the Wilcoxon and Kruskall Wallis Range Tests. The means were 8.77 ± 2.34 and 8.90 ± 2.04 years of the CA for the female and male genders, respectively. The difference in means of the CA and DA according to the Nolla, Demirjian and Cameriere methods were -0.38, 0.96 and -0.21 years, respectively, for the total study sample. A positive correlation was found for the three methods studied; however, the Demirjian method showed a statistically significant difference with an underestimation of -0.91 years in the total sample. Also, the method of Cameriere was the closest to the chronological age.

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          The development of the permanent teeth

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            Accuracy of the estimation of dental age in comparison with chronological age in a Spanish sample of 2641 living subjects using the Demirjian and Nolla methods

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              Bias and accuracy of age estimation using developing teeth in 946 children.

              Developing teeth are used to assess maturity and estimate age in several disciplines. The aim of the study was to determine which of the most well known dental age estimation methods was best at estimating age. The target sample of dental radiographs (N = 946, ages 3–16) was described by Maber et al. (Forensic Sci Int 159 (2006) S68–S73). Seven mandibular permanent teeth (I1–M2) were assessed, and dental age was calculated using four dental maturity scales and fifteen methods that use data for individual teeth. The mean difference between dental age and real age was calculated (bias) as well as several other measures of accuracy (mean/median absolute difference, percentage aged to within six months and to within 10% of real age). Most methods estimated age with significant bias and standard deviation of bias ranged from 0.86 to 1.03 years. Analysis by age group showed most methods over-aged younger children, and considerably under-aged older children. The method that performed best was the dental maturity scale of Willems et al. (J Forensic Sci 46 (2001) 893–895) with bias of −0.14 ± 0.86 years (N = 827), mean absolute difference of 0.66 years, 71% aged to 10% or less of age, and 49% aged to within six months. Two individual teeth, P2 and M2, estimated age with bias not significantly different to zero for most formation stages using methods based on a large reference sample (L9a Demirjian stages) and a uniform age distribution (N25a Moorrees stages). Standard deviation of bias was least for early crown stages and most for late root stages. Methods that average ages for individual teeth improve if schedules for ‘mean age entering a stage’ are adjusted for prediction. Methods that directly calculate ‘mean age within stage’ can be improved by drawing from a uniform age distribution.
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                Author and article information

                Journal
                ic
                Investigación Clínica
                Invest. clín
                Instituto de Investigaciones Clínicas "Dr. Américo Negrette", Facultad de Medicina, Universidad del Zulia (Maracaibo, Zulia, Venezuela )
                0535-5133
                2477-9393
                March 2022
                : 63
                : 1
                : 47-56
                Affiliations
                [2] Lima Lima orgnameUniversidad Peruana de Ciencias Aplicadas orgdiv1Facultad de Ciencias de la Salud orgdiv2Programa Académico de Odontología Peru
                [1] Lima Lima orgnameUniversidad Peruana de Ciencias Aplicadas orgdiv1Facultad de Ciencias de la Salud orgdiv2Programa Académico de Odontología Peru
                Article
                S0535-51332022000100047 S0535-5133(22)06300100047
                10.54817/ic.v63n1a04
                b3fc82b3-110e-45e5-ab23-4b95e2539daa

                This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

                History
                : 09 September 2021
                : 20 May 2021
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 29, Pages: 10
                Product

                SciELO Venezuela

                Categories
                Trabajos Originales

                crecimiento y desarrollo,niños,adolescente,age determination by teeth,panoramic radiography,growth and development,child,radiografía panorámica,determinación de la edad por los dientes,adolescent

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