Líneas de crecimiento en el esmalte dentario. Aplicación a los homínidos del plio-pleistoceno

  • Fernando V. Ramírez Rossi CNRS. Lab. d´ Anthropologie. Musée de l´Homme. Paris

Resumen

RESUMEN: El análisis de la microestructura del esmalte lanzó nuevamente el debate sobre el desarrollo dentario de los homínidos del Plio-Pleistoceno. El esmalte dentario presenta dos tipos de líneas de crecimiento con una periodicidad circadiana y circaseptana. La microestructura del esmalte refleja los patrones del desarrollo dentario. El conteo de las líneas de crecimiento permitió obtener el tiempo de formación de las coronas y, en individuos jóvenes, la edad a la muerte. Los patrones del desarrollo dentario han sido determinados a partir del estudio de la microanatomía del esmalte. Los homínidos del Plio-Pleistoceno han presentado un desarrollo dentario propio, caracterizado por un tiempo de formación más corto de la corona de incisivos y premolares.

ABSTRACT: Enamel microstructure analysis has opened again the discussion about tooth development in Plio-Pleistocene hominids. Two incremental lines are present in enamel, with a circadian and circaseptan periodicity. Enamel microstructure is the result of dental development patterns. Counts of incremental lines allowed to estimate the time of crown formation and, in juvenile individuals, the age at death. Some dental development patterns were estimated from enamel microanatomy studies. Plio-Pleistocene hominids have shown their own dental development characterized by a short crown formation time in incisors and premolars.

 

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Ramírez Rossi, F. V. (1). Líneas de crecimiento en el esmalte dentario. Aplicación a los homínidos del plio-pleistoceno. Revista Argentina De Antropología Biológica, 1(1), 181-197. Recuperado a partir de https://revistas.unlp.edu.ar/raab/article/view/163
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