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Dental age in Dutch children
I H Leurs1, E Wattel, I H A Aartman
1Department of Orthodontics, Academic Centre for Dentistry Amsterdam, Louwesweg 1, 1066 EA Amsterdam, The Netherlands. i.leurs@planet.nl
European Journal of Orthodontics
|June 11, 2005
Summary
Dental age assessment in Dutch children revealed significant differences compared to existing standards. New population-specific charts were developed for more accurate dental age estimation in this demographic.
Area of Science:
- Forensic Anthropology
- Pediatric Dentistry
- Human Growth and Development
Background:
- Accurate dental age estimation is crucial for assessing child development and for forensic applications.
- Existing dental age standards, such as those by Demirjian, may not be universally applicable across different populations.
- Previous studies indicated potential ethnic and geographical variations in dental development patterns.
Purpose of the Study:
- To evaluate the applicability of Demirjian's dental age standards to a Dutch pediatric population.
- To develop new, population-specific dental age estimation charts for Dutch children.
- To establish reliable methods for assessing chronological versus developmental age in children.
Main Methods:
- Dental age was assessed in 451 Dutch children (ages 3-17) using Demirjian's method on dental pantomograms (DPTs).
- Inter-examiner reliability was confirmed using intra-class correlation coefficient (ICC=0.99) and Cohen's kappa (0.68).
- New growth curves were constructed using a logistic model, with residual analysis and scatter plots validating their appropriateness.
Main Results:
- A significant difference was observed between chronological and dental age in Dutch children, who were found to be developmentally advanced compared to French-Canadian standards.
- Dutch boys averaged 0.4 years and girls 0.6 years ahead of the reference population.
- The logistic curve model demonstrated high explained variance (93.9% for boys, 94.8% for girls), confirming its suitability for the Dutch population.
Conclusions:
- Demirjian's French-Canadian standards are not suitable for assessing dental age in Dutch children.
- New, validated dental age charts and tables based on a logistic curve provide accurate estimation for the Dutch pediatric population.
- These findings support the need for population-specific standards in dental age assessment.
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