The timing of permanent tooth development in a Black Southern African population using the Demirjian method.
Demirjian method
Dental age estimation
Dental development
Sub-Saharan Africa
Journal
International journal of legal medicine
ISSN: 1437-1596
Titre abrégé: Int J Legal Med
Pays: Germany
ID NLM: 9101456
Informations de publication
Date de publication:
Jan 2019
Jan 2019
Historique:
received:
21
12
2017
accepted:
08
11
2018
pubmed:
28
11
2018
medline:
4
4
2019
entrez:
28
11
2018
Statut:
ppublish
Résumé
Many aspects of growth have been documented for Black Southern African children, yet their dental development has not been comprehensively investigated. The present study was designed to provide information on age of attainment of dental development stages in Southern African children and to compare the findings with other populations. This was a community-based cross-sectional study of 642 children (270 males and 372 females). Panoramic radiographs of children aged 5 to 20 years were assessed using Demirjian's eight stages of permanent tooth formation and age was estimated using Demirjian's method. Resulting dental ages were compared to the chronological ages. Probit regression analysis was employed to calculate the mean age of attainment of the developmental stages for the seven left mandibular teeth. Maturity scores and age of attainment were compared by sex and with published data on other populations. Females show significantly advanced dental maturity and dental ages, as well as earlier attainment of all stages of mineralization, compared to males (p < 0.05). The Demirjian method overestimated dental age in both males (0.8 ± 1.02 years) and females (1.0 ± 0.98 years). Cross-population comparisons illustrate that Black Southern African children are generally advanced in dental maturity compared to children of European and Asian ancestry. The Demirjian method significantly overestimated the chronological ages of Black Southern African males and females. Southern Africans attain dental maturity earlier than South Korean, Canadian, and Belgian children. These differences in dental maturity clearly illustrate the need for population-specific, rather than global, dental maturity standards.
Sections du résumé
BACKGROUND
BACKGROUND
Many aspects of growth have been documented for Black Southern African children, yet their dental development has not been comprehensively investigated.
AIM
OBJECTIVE
The present study was designed to provide information on age of attainment of dental development stages in Southern African children and to compare the findings with other populations.
METHOD
METHODS
This was a community-based cross-sectional study of 642 children (270 males and 372 females). Panoramic radiographs of children aged 5 to 20 years were assessed using Demirjian's eight stages of permanent tooth formation and age was estimated using Demirjian's method. Resulting dental ages were compared to the chronological ages. Probit regression analysis was employed to calculate the mean age of attainment of the developmental stages for the seven left mandibular teeth. Maturity scores and age of attainment were compared by sex and with published data on other populations.
RESULTS
RESULTS
Females show significantly advanced dental maturity and dental ages, as well as earlier attainment of all stages of mineralization, compared to males (p < 0.05). The Demirjian method overestimated dental age in both males (0.8 ± 1.02 years) and females (1.0 ± 0.98 years). Cross-population comparisons illustrate that Black Southern African children are generally advanced in dental maturity compared to children of European and Asian ancestry.
CONCLUSION
CONCLUSIONS
The Demirjian method significantly overestimated the chronological ages of Black Southern African males and females. Southern Africans attain dental maturity earlier than South Korean, Canadian, and Belgian children. These differences in dental maturity clearly illustrate the need for population-specific, rather than global, dental maturity standards.
Identifiants
pubmed: 30478536
doi: 10.1007/s00414-018-1968-4
pii: 10.1007/s00414-018-1968-4
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
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