The Demirjian versus the Willems method for dental age estimation in different populations: A meta-analysis of published studies

Temitope Ayodeji Esan, Veerasamy Yengopal and Lynne A Schepartz

PLOS ONE, 2017, vol. 12, issue 11, 1-23

Abstract: Background: The accuracy of radiographic methods for dental age estimation is important for biological growth research and forensic applications. Accuracy of the two most commonly used systems (Demirjian and Willems) has been evaluated with conflicting results. This study investigates the accuracies of these methods for dental age estimation in different populations. Methods: A search of PubMed, Scopus, Ovid, Database of Open Access Journals and Google Scholar was undertaken. Eligible studies published before December 28, 2016 were reviewed and analyzed. Meta-analysis was performed on 28 published articles using the Demirjian and/or Willems methods to estimate chronological age in 14,109 children (6,581 males, 7,528 females) age 3–18 years in studies using Demirjian’s method and 10,832 children (5,176 males, 5,656 females) age 4–18 years in studies using Willems’ method. The weighted mean difference at 95% confidence interval was used to assess accuracies of the two methods in predicting the chronological age. Results: The Demirjian method significantly overestimated chronological age (p

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0186682

DOI: 10.1371/journal.pone.0186682

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