Analysis of enamel defects in a cave bear maxillary molar, with remarks on incremental markings in bear enamel
Dados Bibliográficos
| ID | 12371627 |
|---|---|
| Autores | Uwe Kierdorf (0000-0003-0531-2460, Department of Biology University of Hildesheim Hildesheim Germany, autor correspondente), Dean Konjević (0000-0002-8584-9825, Faculty of Veterinary Medicine University of Zagreb Zagreb Croatia), Siniša Radović (0000-0001-7838-7952, Institute for Quaternary Palaeontology and Geology Croatian Academy of Sciences and Arts Zagreb Croatia), Miljenko Bujanić (0009-0000-1421-3339, Faculty of Veterinary Medicine University of Zagreb Zagreb Croatia), H Kierdorf (0000-0001-6411-9631, Department of Biology University of Hildesheim Hildesheim Germany) |
| Ano | 2024 |
| Volume | 34 |
| Fascículo | 4 |
| Data de publicação | 2024-05-17 |
| Peer Reviewed | Sim |
| Open Access | Sim |
| Tipo | ARTICLE |
| Periódico | International Journal of Osteoarchaeology (JOURNAL) |
| Identificadores do periódico | ISSN: 1047-482X • E-ISSN: 1099-1212 |
| Editora | Wiley (PUBLISHER • GB) |
| DOI | 10.1002/oa.3309 |
| OpenAlex | W4397047645 |
| Idioma | EN |
| Referências citadas | 47 |
The paper discusses the formation of an enamel defect in the crown of a cave bear ( Ursus spelaeus sensu lato) left maxillary second molar (M 2 ), based on macroscopic and microscopic analysis. The tooth belongs to a cranium recovered from the Cerovac caves in Croatia that exhibits a partially healed, depressed lesion in the left squama frontalis and a further lesion in the left maxilla associated with loss of the M 1 . Microscopic inspection demonstrated an accentuated incremental line in both enamel and dentin of the left M 2 . It is suggested that in the defect area the outer enamel had been posteruptively lost along the accentuated line in the enamel that constituted a zone of reduced mechanical resistance. Presence of enamel hypoplasia in both M 2 indicated that these developmental lesions reflect a systemic stress event during crown formation of the teeth. The underlying cause of this stress is assumed to have been a trauma to the skull that caused the lesion in the left squama frontalis. It is further suggested that a later trauma to the left maxilla had led to the loss of the left M 1 and the flaking‐off of enamel along the accentuated incremental line in the left M 2 . The defect in the left M 2 is thus diagnosed as the result of a developmental lesion during crown formation, related to systemic stress due to a skull trauma, followed by posteruptive damage from a second traumatic impact. In addition to reconstructing the formation of the defect in the crown of the left M 2 , the paper, for the first time, describes daily and subdaily incremental markings in ursid enamel and provides preliminary information on enamel secretion rate in a cave bear molar
Crown (dentistry · Enamel hypoplasia · Enamel paint · Lesion · Molar · Pathology · Skull · Bone and Dental Protein Studies · dental development and anomalies · Dentistry · Forensic Anthropology and Bioarchaeology Studies · Medicine · Anatomy
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| Velocidade de citação | historical |
|---|---|
| Altamente citado | Não |