A comparison of the validity of the Demirjian, Willems, Nolla and Häävikko methods in determination of chronological age of 5–15 year-old Indian children

Hegde, Shruti; Patodia, Akash; Dixit, Uma

doi:10.1016/j.jflm.2017.07.007

Cited by 47 publications

(42 citation statements)

References 19 publications

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“…In the case of the Willems method, we also find overestimation in Bangladeshi and British [33] and in Indians [2]. However, the study carried out by Mohammed RB et al [34] also in the Indian population reports underestimation with the Willems method.…”

Section: Regression Analysismentioning

confidence: 44%

“…In the case of the Nolla method, we also find underestimation when applied in Brazilians and Croats [30], in Malaysians [31], in Turks [32], in Bangladeshi and British [33] or in Indians [2]. However, there are conflicting results in some of the aforementioned populations, with overestimation being found in the study of Lopes LJ et al [3] with Brazilians and in the study of Mohammed RB et al [34] in Indians.…”

Section: Regression Analysismentioning

confidence: 66%

“…The application of the Demirjian, Willems and Nolla methods in the same design has been carried out only in three studies [2,33,34]. Maber et al [33] analyzed 946 radiographs of children aged 3 to…”

Section: Regression Analysismentioning

confidence: 99%

“…16.9 years and Hegde S et al [2] analyzed1200 radiographs in children between 5 and 15 years. As in our case, the Willems method was the most accurate, and together with the Demirjian method, they overestimated the chronological age.…”

Section: Regression Analysismentioning

confidence: 99%

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Accuracy assessment of dental age estimation with the Willems, Demirjian and Nolla methods in Spanish children. Comparative cross-sectional study.

Cortés

Rojo

García

et al. 2020

Preprint

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Background: The objective of this study was to evaluate and compare the validity and accuracy of the Willems, Demirjian and Nolla methods in predicting chronological age in a Spanish ethnicity population. Methods: A sample of 604 orthopantomographs of Spanish children aged 4 to 14 years was evaluated by two independent evaluators. Descriptive statistics were applied to calculate the chronological age and dental age, presenting the mean and standard deviation. The difference between dental age and chronological age was calculated for each method. A positive result indicated an overestimation and a negative figure indicated an underestimation. The Wilcoxon test for paired data and Spearman's correlation coefficient were applied by age groups and gender to compare the chronological age and dental age of each method (that of Willems, Demirjian and Nolla). Statistical tests were performed at a 95% confidence level. Results: The interexaminer agreement was 0.98 (p = 0.00), and the intraexaminer agreement was 0.99 (p = 0.00). The Willems method significantly overestimated the age of boys (0.35 years (0.93)) and girls (0.17 years (0.88)). The Demirjian method significantly overestimated the age of boys (0.68 years (0.95)) and girls (0.73 years (0.94)). The Nolla method significantly underestimated age in boys (0.44 years (0.93)) and girls (0.82 years (0.98)). Conclusions: In the Spanish population, the use of the Demirjian method for legal and medical purposes is frequent. This study reveals that the Willems method is more appropriate due to its greater precision in estimating dental age.

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Section: Regression Analysismentioning

confidence: 44%

Section: Regression Analysismentioning

confidence: 66%

Section: Regression Analysismentioning

confidence: 99%

Section: Regression Analysismentioning

confidence: 99%

See 2 more Smart Citations

Accuracy assessment of dental age estimation with the Willems, Demirjian and Nolla methods in Spanish children. Comparative cross-sectional study.

Cortés

Rojo

García

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…It was reported that Willems method had greater accuracy in estimating chronological age than Demirjian's method in both groups. Hegde et al (17) tested applicability of four different age estimation methods in Indian children. It was reported that age estimated with Willems method was the most accurate followed by Demirjian's method.…”

Section: Discussionmentioning

confidence: 99%

Dental Age Estimation in Southern Turkish Children: Comparison of Demirjian and Willems Methods

Altan

Sözer

2017

Iran J Pediatr

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Background: Age-related legal problems are particularly common in underdeveloped parts of Turkey. Age determination is important in terms of both laws and penalties in the legal process. Objectives: The aim of the present study was to compare the validity of the Demirjian and Willems methods in southern Turkish children. Methods: In this retrospective study, panoramic radiographs of 745 southern Turkish children (382 boys and 363 girls) aged between 4 and 15.99 years were examined by one investigator. According to Demirjian and Willems method, the mean difference between chronological and dental age was calculated for each sex and age group. The Wilcoxon test was used to compare all data. Statistical analysis was performed to test the validity of Demirjian and Willems methods by comparing the mean estimated and chronological age. Results: The Demirjian's method overestimated age with a mean accuracy of 0.832 in females and by 0.923 in males, while Willems method overestimated it by 0.202 in females and 0.434 in males. Conclusions: The dental age estimation by Willems method was found to be more accurate than Demirjian method in contemporary Turkish pediatric population.

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Age assessment in unaccompanied minors

Prieto

2020

Forensic Science and Humanitarian Action

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A comparison of the validity of the Demirjian, Willems, Nolla and Häävikko methods in determination of chronological age of 5–15 year-old Indian children

Cited by 47 publications

References 19 publications

Accuracy assessment of dental age estimation with the Willems, Demirjian and Nolla methods in Spanish children. Comparative cross-sectional study.

Accuracy assessment of dental age estimation with the Willems, Demirjian and Nolla methods in Spanish children. Comparative cross-sectional study.

Dental Age Estimation in Southern Turkish Children: Comparison of Demirjian and Willems Methods

Age assessment in unaccompanied minors

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