Dental age assessment (DAA): a simple method for children and emerging adults

Roberts, Graham; Parekh, Susan; Petrie, Aviva; Lucas, Victoria

doi:10.1038/bdj.2008.21

Cited by 95 publications

(86 citation statements)

References 12 publications

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“…As Roberts et al (2008) have noted, there is a considerable range in the number of ordered stages defined for dental formation. For molars, excluding an initial stage of ''no calcification,'' there is a three-stage definition (Garn et al, 1959), a four-stage definition (Gustafson and Koch, 1974), a five-stage definition (Harris and Nortje, 1984), a seven-stage definition (Kullman et al, 1992), an eight-stage definition (Demirjian et al, 1973), a 10-stage definition (Gunst et al, 2003), a 12-stage definition (Haavikko, 1970), a 14-stage definition (Moorrees et al, 1963b), a 16-stage definition (Gleiser and Hunt, 1955), and a 19-stage definition (Fanning, 1961).…”

Section: Definition Of Ordered Stagesmentioning

confidence: 99%

“…Two of these root apex stages were eventually eliminated for the Moorrees et al's studies. The rationale given for collapsing scores in any of the newer systems is to decrease intraobserver and/or interobserver error in scoring, and usually Cohen's kappa coefficient is presented as a measure of repeatability for any scoring used in a given study (Dhanjal et al, 2006;Liversidge et al, 2006;Cameriere et al, 2008;Roberts et al, 2008;Butti et al, 2009;AlQahtani et al, 2010;Blenkin and Evans, 2010;Liversidge and Marsden, 2010;Maia et al, 2010;Thevissen et al, 2010;Galić et al, 2011). Weighted (also known as generalized) kappa (Landis and Koch, 1977) is an appropriate measure of repeatability for ordinal categorical traits, but as Harris (2007) has observed, repeatability is only one of the considerations in choosing a scoring system.…”

Section: Definition Of Ordered Stagesmentioning

confidence: 99%

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Estimating the distribution of probable age‐at‐death from dental remains of immature human fossils

Shackelford

Harris

Konigsberg

2011

American J Phys Anthropol

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In two historic longitudinal growth studies, Moorrees et al. (Am J Phys Anthropol 21 (1963) 99-108; J Dent Res 42 (1963) 1490-1502) presented the "mean attainment age" for stages of tooth development for 10 permanent tooth types and three deciduous tooth types. These findings were presented graphically to assess the rate of tooth formation in living children and to age immature skeletal remains. Despite being widely cited, these graphical data are difficult to implement because there are no accompanying numerical values for the parameters underlying the growth data. This analysis generates numerical parameters from the data reported by Moorrees et al. by digitizing 358 points from these tooth formation graphs using DataThief III, version 1.5. Following the original methods, the digitized points for each age transition were conception-corrected and converted to the logarithmic scale to determine a median attainment age for each dental formation stage. These values are subsequently used to estimate age-at-death distributions for immature individuals using a single tooth or multiple teeth, including estimates for 41 immature early modern humans and 25 immature Neandertals. Within-tooth variance is calculated for each age estimate based on a single tooth, and a between-tooth component of variance is calculated for age estimates based on two or more teeth to account for the increase in precision that comes from using additional teeth. Finally, we calculate the relative probability of observing a particular dental formation sequence given known-age reference information and demonstrate its value in estimating age for immature fossil specimens.

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Section: Definition Of Ordered Stagesmentioning

confidence: 99%

Section: Definition Of Ordered Stagesmentioning

confidence: 99%

Estimating the distribution of probable age‐at‐death from dental remains of immature human fossils

Shackelford

Harris

Konigsberg

2011

American J Phys Anthropol

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“…It is important to have a sufficiently large sample to generate ethnic and gender-specific reference standards [3,10]. A recent novel advance in the handling of summary data of tooth development stages (TDSs) involves the use of the mathematical techniques of meta-analysis [2].…”

Section: Introductionmentioning

confidence: 99%

“…Further, to assess the precision of a simple technique of dental age assessment [2] for this age group.…”

Section: Introductionmentioning

confidence: 99%

Dental age assessment (DAA): Reference data for British caucasians at the 16 year threshold

Mitchell

Roberts

Donaldson

et al. 2009

Forensic Science International

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“…In the context of DAA, the mathematical technique of meta-analysis is used to provide an estimate of the dental age in a subject by calculating the weighted mean of TDSs in that individual, with each weight being proportional to the variation within the sample (standard deviation) and the number of each TDS [10]. A random effects model is used for the calculation which incorporates the variation between the TDSs into the weight for each TDS.…”

Section: Meta-analysis For Daamentioning

confidence: 99%

Dental age assessment (DAA): reference data for British children at the 10-year-old threshold

2010

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The purpose of this work was to develop a reference dataset for dental age assessment at the 10-year-old threshold. Dental panoramic radiographs of children aged between 9 and 11 years were reused to determine the age of attainment of tooth development stages relevant to the 10-year threshold. These data were used to test the accuracy of the dental age assessment (DAA) on a separate study sample of known chronological age. The study sample comprised 100 radiographs (50 female, 50 male) of known chronological age that did not form part of the reference dataset. For each subject in the study sample, the mathematical procedure used in meta-analysis was applied to all teeth that were still developing. The weighted average of all the developing teeth in a given child was assigned as the dental age for that individual. This was compared to the gold standard of chronological age. Three thousand six hundred sixty-two radiographs comprised the reference sample. The mean difference between the chronological age and dental age estimated for the sample of female subjects was 0.12 years (1.44 months) and for the males was 0.33 years (3.96 months). A method comparison technique was used to evaluate the difference between the chronological age and estimated dental age for each study subject. This showed a good agreement for both females and males. DAA using meta-analysis provides a simple method of estimating the age of subjects of unknown birth date at the 10-year threshold. This is, presently, the most accurate method of age assessment for individuals of unknown date of birth.

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Dental age assessment (DAA): a simple method for children and emerging adults

Cited by 95 publications

References 12 publications

Estimating the distribution of probable age‐at‐death from dental remains of immature human fossils

Estimating the distribution of probable age‐at‐death from dental remains of immature human fossils

Dental age assessment (DAA): Reference data for British caucasians at the 16 year threshold

Dental age assessment (DAA): reference data for British children at the 10-year-old threshold

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