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

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dc.contributor.author Liversidge, Helen M. en_US
dc.contributor.author Smith, B. Holly en_US
dc.contributor.author Maber, Melissa en_US
dc.date.accessioned 2010-11-23T19:31:51Z
dc.date.available 2011-03-01T16:26:42Z en_US
dc.date.issued 2010-12 en_US
dc.identifier.citation Liversidge, Helen M.; Smith, B. Holly; Maber, Melissa (2010). "Bias and accuracy of age estimation using developing teeth in 946 children." American Journal of Physical Anthropology 143(4): 545-554. <http://hdl.handle.net/2027.42/78321> en_US
dc.identifier.issn 0002-9483 en_US
dc.identifier.issn 1096-8644 en_US
dc.identifier.uri http://hdl.handle.net/2027.42/78321
dc.description.abstract 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 (I 1 –M 2 ) 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, P 2 and M 2 , 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. Am J Phys Anthropol, 2010. © 2010 Wiley-Liss, Inc. en_US
dc.format.extent 174224 bytes
dc.format.extent 3118 bytes
dc.format.mimetype application/pdf
dc.format.mimetype text/plain
dc.publisher Wiley Subscription Services, Inc., A Wiley Company en_US
dc.subject.other Life and Medical Sciences en_US
dc.subject.other Anthropology en_US
dc.title Bias and accuracy of age estimation using developing teeth in 946 children en_US
dc.type Article en_US
dc.rights.robots IndexNoFollow en_US
dc.subject.hlbsecondlevel Anthropology en_US
dc.subject.hlbtoplevel Social Sciences en_US
dc.description.peerreviewed Peer Reviewed en_US
dc.contributor.affiliationum Museum of Anthropology, The University of Michigan, Ann Arbor, MI 48109 en_US
dc.contributor.affiliationother Institute of Dentistry, Bart's and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AD, England, UK ; Institute of Dentistry, Bart's and The London School of Medicine and Dentistry, Queen Mary University of London, Turner Street, London E1 2AD, United Kingdom en_US
dc.contributor.affiliationother Institute of Dentistry, Bart's and The London School of Medicine and Dentistry, Queen Mary University of London, London E1 2AD, England, UK en_US
dc.identifier.pmid 20623675 en_US
dc.description.bitstreamurl http://deepblue.lib.umich.edu/bitstream/2027.42/78321/1/21349_ftp.pdf
dc.identifier.doi 10.1002/ajpa.21349 en_US
dc.identifier.source American Journal of Physical Anthropology en_US
dc.owningcollname Interdisciplinary and Peer-Reviewed
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