The 81st Annual Meeting of the American Association of Physical Anthropologists (2012)


Differential diagnosis of severe dental hypoplastic defects in two juveniles from the Pre-Classic site of El Carrizal, Oaxaca, Mexico

SARA S. PHILLIPS.

Department of Anthropology, University of West Georgia

Thursday All day, Plaza Level Add to calendar

Presented is the differential diagnosis of severe hypoplastic defects observed in the dental remains of two juvenile individuals recovered from the site of El Carrizal. El Carrizal is a late Pre-Classic period site (~400 BC to 200 AD) located in the Istmo Sur region of the state of Oaxaca, Mexico. Both individuals were found buried in an extended position with various grave offerings, in common with other juveniles of the same age category at the site. Bone preservation at El Carrizal was generally poor, with dental remains the best preserved tissues - a pattern consistent with the two individuals discussed here. The first individual, approximately 5 years of age at the time of death, has severe enamel hypoplasias on several permanent teeth, including incisors, canines and first molars. The canine cusps are reduced in size, while the hypoplastic defects on the upper central incisors appear as broad bands, particularly on the labial side. A second individual, approximately 8 years of age at the time of death, has a severe enamel hypoplasia occurring at the base of cusps of both permanent maxillary first molars. Diagnoses from nutritional stress to the potential for congenital syphilis will be considered.

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