ArticleInternational journal of legal medicine2024
Comparing tooth development timing between ethnic groups, excluding nutritional and environmental influences.
Article in International journal of legal medicine, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers, 1 of them a synthesis that pooled it.
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Who cites it
6 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Radiocarbon dating of dental tissues for determining time since death in forensic cases: a systematic review.International journal of legal medicine · 2026Pooled it
- Comparing an Indian dataset with BioAlder using Demirjian's staging of the third molar.International journal of legal medicine · 2026Article
- Association between dental age variation and EGF, EGFR, TGFB1, and TGFB2 genetic polymorphisms.Journal of orofacial orthopedics = Fortschritte der Kieferorthopadie : Organ/official journal Deutsche Gesellschaft fur Kieferorthopadie · 2026Article
- CBCT-based retrospective assessment of apical closure timing in permanent second molars.BMC oral health · 2026Article
- Dental age estimation by comparing Demirjian's method and machine learning in Southeast Brazilian youth.Forensic science, medicine, and pathology · 2026Article
- Article
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Authors and funding
6 authors.
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Abstract
The timing of dental development in ethnic Finns and Somalis, who were born and living in Finland, was compared, with efforts to minimize environmental bias. The developmental status of seven lower left permanent teeth were staged according to Demirjian et al., using panoramic radiographs from 2,100 Finnish and 808 Somali females and males, aged 2 to 23 years. For each tooth, a continuation-ratio model was constructed to analyze the allocated stages as a function of sex and ethnic origin. Several statistically significant differences in mean age of certain tooth developmental stage transitions were revealed. While Somalis generally displayed stage transitions at younger age, none of the seven teeth consistently showed earlier stage transitions in Somalis compared to Finns. Within each tooth, the lowest (or highest) mean age of stage transition varied without any discernible pattern between the two ethnic groups. Overall, the observed differences in mean age of stage transition between the groups was minimal, suggesting a low impact on clinical and forensic age assessment practice. In conclusion, the studied ethnic Finn and Somali groups with equal nutritional and /or environmental conditions exhibit similar timing in the development of all lower left permanent teeth.
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