New prediction models for dental age estimation in Thai children and adolescents

Duangto, Phuwadon; Janhom, Apirum; Prasitwattanaseree, Sukon; Mahakkanukrauh, Pasuk; Iamaroon, Anak

doi:10.1016/j.forsciint.2016.05.005

Cited by 25 publications

(19 citation statements)

References 22 publications

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“…Some researchers have reported acceleration of the EDA in females compared to that in males. 10,32,39 However, the EDA among males could be in advance of that in females, as reported by Duangto et al, 40 who examined a Thai population and found mean differences of 0.11 and 0.10 years for males and females, respectively. In addition, Gungor et al 15 evaluated the applicability of Demirjian’s method for an elderly southern Turkish population and reported that the mean differences between the chronological and DAs ranged from 0.04 to 0.85 years and from 0.02 to 0.79 years in males and females, respectively.…”

Section: Discussionmentioning

confidence: 65%

Applicability of Demirjian’s method for dental age estimation in a group of Egyptian children

2019

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AimsThe aims of this study were to evaluate the applicability of Demirjian’s method for dental age assessment in a group of Egyptian children in Minia city and to develop an age predictive equation suitable for the studied group.Subjects and methodsIn this retrospective, blind, cross-sectional study, 160 dental panoramic radiographs (DPTs) were selected from 420 DPTs from healthy children aged between three and 10 years old from the archived medical files of patients attending Minia University Dental Hospital (MUDH) and evaluated to estimate dental ages.ResultsAge was overestimated for almost all of the studied subjects with an accuracy range from 0.18 to 1.19 years for males and from 0.08 to 0.87 years for females, with the exception of two age subgroups (9–10-year-old males and 10–11-year-old females, for which the mean difference values were −0.06 and −0.008 years, respectively). A Logistic regression was used to generate a suggested formula for dental age estimation.ConclusionsDemirjian’s method may be unsuitable for Egyptian children living in Minia city. Development of a predication equation and the introduction of adaptable conversion tables to transform the maturity score into a dental age for Egyptian children may be suitable alternatives. The validity of the newly developed prediction equation must be tested among all Egyptian children.

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Section: Discussionmentioning

confidence: 65%

Applicability of Demirjian’s method for dental age estimation in a group of Egyptian children

2019

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“…No así la maduración dental, que dependerá de la magnitud de calcificación de los dientes, este proceso ocurre de manera constante sin alterarse por factores hormonales o nutricionales (Buschang et al). Se sabe que el método de Demirjian es un excelente indicador de edad cronológica se ha probado en poblaciones Iranís (Bagherian & Sadeghi, 2011), Saudíes (Al-Dharrab et al, 2017), Españoles (Delgado Tomás, 2014), Indues (Malik et al, 2012) y tailandeses (Duangto et al, 2016) encontrando que es una herramienta útil; sin embargo estas aseveraciones son inexactas ya que se calcularon mediante correlaciones, las cuales estadísticamente no son el método de elección para probar concordancia o validez (Cortés-Reyes et al, 2010), existen reportes de que la edad dental es variable por razas incluso se ha ajustado el método de Demirjian a otras poblaciones, sin embargo el procedimiento estadístico no es concreto (Willems et al, 2001). Los hallazgos en población mexicana son bastante concordantes (CCI masculinos 0,962, femeninos 0,923 y ambos sexos 0,944) por lo que se puede pensar que la herramienta es útil en esta población, sin embargo el rango de edad fue limitado por lo que una población más amplia seria de utilidad.…”

Section: Discussionunclassified

Concordancia entre la Edad Cronológica y Edad Dental Según el Método de Demirjian en Pacientes Mexicanos

Ramirez-Roman

Garza-Ballesteros

Moreno-Terrazas

et al. 2018

Int. J. Odontostomat.

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RESUMEN: En la práctica forense un dato de gran importancia es la edad cronológica de los pacientes, este puede obtenerse de múltiples formas, algunas son complejas, costosas y tardadas, el cálculo de la edad dental (ED) por vía radiográfica es sencillo y de bajo costo, ha mostrado ser concordante con la edad cronológica (EC), presentando variaciones por sexo y raza. El objetivo de este estudio es establecer la concordancia de la ED y la EC en población mexicana. Este es un estudio transversal, observacional en el que un residente estandarizado evaluó 88 Ortopantomografías (44 femeninos y 44 masculinos) de manera cegada respecto a la EC

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“…2 Various skeletal parts have been conducted on Thai populations to estimate age, which includes: cranial suture, teeth, chest plate, clavicle, acetabulum, pubic symphysis, and vertebral column. [3][4][5][6][7][8][9] The potentiality, accuracy, correlation, and error rates for the estimated age of each skeletal part are inconsistent. Therefore, the development of aging methods from skeletons with high accuracy in the Thai population is essential.…”

Section: Introductionmentioning

confidence: 99%

Estimating age from digital radiographic images of lumbar vertebrae in a Thai population using an image analysis technique

et al. 2021

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Using the lumbar vertebra for age estimation is helpful in cases when skeletal remains are incomplete and typical skeletal age indicators are absent. This study aimed to apply an image analysis method in extracting black pixel variables for age estimation by using the radiographic images of lumbar vertebra in a Thai population. All lumbar vertebrae L1–L5 of 220 (110 males and 110 females) from Thai individuals of known sex and ages were studied. The variables of Total Percentage of black pixels (TP), Mean Percentage of black pixels (MP), and Ratio of black to white pixels (BW), were calculated to assess the relationship between black pixel variables and aging. Equations were formulated using linear regression analysis. The results of this study indicated three variables of the lumbar vertebrae had significantly positive correlations with age. The correlation between parameters with age in males ranged 0.211–0.419, while the range in females was 0.219–0.458. The appropriate linear regression equation with the total and mean percentages of black pixel variables shows Age = −1.348+0.871 (TP) +0.514 (MP) of L4 for males (SEE; 15.4 years), and Age = 5.338 +0.316 (TP) +0.952 (MP) of L1 for females (SEE; 13.8 years). Age estimation using an image analysis method is an alternative to investigating the trabecular structure. The black pixel variable is not the actual value of bone density. However, it is useful to study its relationship with aging.

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New prediction models for dental age estimation in Thai children and adolescents

Cited by 25 publications

References 22 publications

Applicability of Demirjian’s method for dental age estimation in a group of Egyptian children

Applicability of Demirjian’s method for dental age estimation in a group of Egyptian children

Concordancia entre la Edad Cronológica y Edad Dental Según el Método de Demirjian en Pacientes Mexicanos

Estimating age from digital radiographic images of lumbar vertebrae in a Thai population using an image analysis technique

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