ArticleInternational journal of legal medicine2018
Age estimation of Chinese children based on second molar maturity.
Article in International journal of legal medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 17 citations in OpenAlex.
- Dental age assessment: A proposal for refining and extending the Demirjian stages for third molar mineralization evaluation.International journal of legal medicine · 2026Article
- CBCT-based retrospective assessment of apical closure timing in permanent second molars.BMC oral health · 2026Article
- Feasibility Study on Optimising the Efficacy of a Population Age Estimation Model for South China by Combined Machine Learning for the Second and Third Molars.Journal of imaging informatics in medicine · 2025Article
- Chronological age estimation based on dental mineralization for Syrian population.International journal of legal medicine · 2024Article
- Does third molar agenesis influence the second lower molar mineralization?International journal of legal medicine · 2024Article
- Evaluation of radiographic visibility of root pulp in mandibular second molars using cone beam computed tomography images for age estimation.Forensic science, medicine, and pathology · 2024Article
- Combining the third molar mineralization to further improve the accuracy of the Kvaal's method in dental age estimation of subadults in northern China.Forensic sciences research · 2023Article
- Age Assessment through Root Lengths of Mandibular Second and Third Permanent Molars Using Machine Learning and Artificial Neural Networks.Journal of imaging · 2023Article
- Usability of dental pulp visibility and tooth coronal index in digital panoramic radiography in age estimation in the forensic medicine.International journal of legal medicine · 2020Article
- Estimation of age in forensic anthropology: historical perspective and recent methodological advances.Forensic sciences research · 2019Review
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Authors and funding
9 authors at 3 institutions in 2 countries.
Funding
Abstract
In forensic medicine and many other fields, age estimation by the use of teeth is of great importance for the purpose of individual identification. In the past, however, age estimation based on the second molar mineralization was scarcely performed. In this study, a total of 1657 panoramic radiographs taken from 834 males and 823 females of northern Chinese origin in the age bracket 5 to 25 years were assessed. The mineralization status of the second molars was determined using the classification described by Demirjian et al. Results showed that the left and right, as well as maxillary and mandibular second molars were generally at similar stages of mineralization. The maxillary left second molars (27) at stage D, mandibular left second molars (37) at stages C, D, F, and G, and mandibular right second molars (47) at stages D, F, and G showed a significantly lower average age in female subjects than in male subjects. In males, fully developed second molars first appeared with 12 years of age; in females, stage H occurred with 11 years at the earliest. One male individual and one female individual with second molars showing stage G were 23 years old. It was concluded that second molars showing stage H do not exclude an age under 14 years and that second molars showing stage G do not exclude an age above 18 years.
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