Radix entomolaris: A morphological variable of human dentition with anthropological relevance. A study on a Chilean population
| Primer Autor |
Oporto, Gonzalo H.
|
| Co-autores |
Rodriguez-Niklitschek, Cynthia
Fernandez, Rocio
Marinao, Daniela
Lopez-Lazaro, Sandra
Chuhuaicura, Priscila
Vargas, Andres
|
| Título |
Radix entomolaris: A morphological variable of human dentition with anthropological relevance. A study on a Chilean population
|
| Editorial |
E SCHWEIZERBARTSCHE VERLAGSBUCHHANDLUNG
|
| Revista |
ANTHROPOLOGISCHER ANZEIGER
|
| Lenguaje |
en
|
| Resumen |
The existence of a third root in the mandibular first molars may have implications for certain dental treatments, however, its greatest relevance could be in anthropological and forensic sciences, because its prevalence varies significantly according to ethnic groups. The purpose of this research was to determine the prevalence of radix entomolaris (RE) in a sample of Chilean people. A random sample of 1330 digital periapical radiographs of endodontically treated mandibular first molars (551 males and 779 females, aged between 18 and 87 years) were evaluated. The prevalence of RE, its distribution by sex and root canal lengths were determined. Evidence demonstrated that the formation of RE is associated with ancestry and its frequency is variable according to populations studied, being more frequent in Asians and Native Americans. The prevalence of RE in the studied people was 3.16%, similar to frequencies reported in European individuals (3.4%-4.2%). The 61.90% of RE were located at the right side of the mandible and 38.10% at the left side. The average working length of RE was 19.52 mm. No statistically significant differences in frequencies were observed by sex (p = 0.19). The prevalence of RE varies among continental population groups. However, due to human migration, the frequency of this physical trait could be modified in specific geographic regions. The observed prevalence of RE in the study group was similar to the prevalence ranges observed for European ancestry populations and it was considerably lower than the data reported for non-Europeans. The absence of sexual dimorphism is consistent with results of previous studies performed worldwide.
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| Fecha Publicación |
2023
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| Tipo de Recurso |
artículo original
|
| doi |
10.1127/anthranz/2022/1404
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| Formato Recurso |
PDF
|
| Palabras Claves |
anatomical variation
dental anthropology
dental morphology
mandibular first molar
radix entomolaris
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| Ubicación del archivo | |
| Categoría OCDE |
Antropología
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| Materias |
variación anatómica
antropología dental
morfología dental
primer molar mandibular
raíz entomolaris
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| Página de inicio (Recomendado-único) |
23.0
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| Página final (Recomendado-único) |
29
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| Identificador del recurso (Mandatado-único) |
artículo original
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| Versión del recurso (Recomendado-único) |
versión publicada
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| Derechos de acceso |
metadata
|
| Access Rights |
metadata
|
| Id de Web of Science |
WOS:000862169400001
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| ISSN |
0003-5548
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| Categoría WOS |
Antropología
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