In forensic science, determining a person's chronological age has become a challenge for researchers. Determining age using dental calcification is becoming increasingly important. The objective of this study is to estimate the dental age of the children's population in Region VIII, Chile. The sample was randomly taken from children under the care of the Faculty of Dentistry at the Universidad de Concepción in Chile. The study encompasses 159 children between 3 and 14 years of age. The dental age was determined following the Demirjian method. The Bland-Altman method was applied to establish the correlation. It was determined that the range between chronological and dental age is similar, and the degree of correlation between both ages is nearly perfect. In conclusion, the degree of correlation between the chronological and dental ages for each gender is also very good although it is slightly higher for females.

y se buscó obtener evidencias de validez que apoyen su uso tanto en población consultante y no consultante. Se hallaron indicadores de confiabilidad aceptables a través del método de consistencia interna (Alfa de Cronbach), así como evidencia de validez de contenido, validez factorial y de validez criterial. Concluyéndose que el IDER es un instrumento válido y confiable para evaluar el componente afectivo de la depresión.