Dataset Information

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

ABSTRACT:

Aims

The 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 methods

In 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.

Results

Age 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.

Conclusions

Demirjian'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.

SUBMITTER: Moness Ali AM

PROVIDER: S-EPMC6430778 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Publications

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

Moness Ali Amro M AM Ahmed Wael H WH Khattab Nagwa M NM

BDJ open 20190321

<h4>Aims</h4>The 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.<h4>Subjects and methods</h4>In 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 ...[more]

PMID: 30911408

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Project description:Background:Forensic estimation of chronological age has played an increasingly important role as part of cadaver identification, and also in living individuals due to the phenomenon of immigration and sexual abuse of undocumented trafficked children. Objective:This research aimed to validate the already used dental mineralization and eruption atlas in normal children and adolescent population in estimating chronological age in a young population, particularly those with special needs, majority of them with systemic diseases. Participants and Setting:A sample of 163 orthopantomograms from two independent medical institutions was collected from 133 patients aged between 4 and 23 years. Method:The orthopantomograms were divided into two groups, 95 from patients with systemic pathologies that have repercussions on dental development and 68 with systemic pathologies without dental repercussions. Dental ages were estimated by the London Atlas using the left side and then independently the right side of the maxilla. The intraobserver and interobserver agreements were evaluated. The difference between dental age estimates and the chronological age and its absolute value were calculated and analyzed. Results:Statistically significant differences were found between estimates and chronological age, revealing a general prevalence for underestimation; except for those under the age of 12. Nevertheless, the underestimation in individuals under the age of 16 was not significant (with an average of less than one month), while the underestimation was significant for persons who were at least 16 years old (with an average over 26 months). Furthermore, for those persons with systemic diseases with dental repercussions a greater error in underestimation was obtained, which indicates that the midpoint values should be reassessed in persons with Down's syndrome, chromosomal alterations, syndromes and central nervous system disorders. Conclusions:This atlas can be potentially used as a tool for age estimation in a population with special needs and, also, in a population with systemic diseases, but we suggest further studies with larger international samples to create adequate atlases for all the required scenarios, mainly, diagrams for people with systemic diseases who are over the age of 16.

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Dataset Information

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

Aims

Subjects and methods

Results

Conclusions

Publications

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

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