Auditory exostoses are bone anomalies located in the external auditory canal. The bulk of clinical observations and some experimental data support the idea that their development depends on prolonged exposure to cold water. This study was performed in order to analyze the prevalence of auditory exos
Bone lead in the prehistoric population of Gran Canaria
β Scribed by E. Gonzalez-Reimers; M. Arnay-De-la-Rosa; J. Velasco-Vazquez; L. Galindo-Martin; E. Delgado-Ureta; F. Santolaria-Fernandez
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 70 KB
- Volume
- 11
- Category
- Article
- ISSN
- 1042-0533
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β¦ Synopsis
The present study determined the lead concentration in bone tissue from 40 prehistoric individuals of Gran Canaria, and in a sample of 19 modern day residents of the Canary Islands. Higher bone lead values were observed in the modern sample (18.65 Β± 12.13 g/g dry bone tissue) than in the ancient sample (4.41 Β± 3.45 g/g dry bone tissue, P < 0.001). Older individuals showed higher bone lead values than younger individuals, but only in the modern group. The correlation between age and bone lead approached statistical significance (P β«Χ‘β¬ 0.058). Low bone lead observed in the prehistoric sample suggests a low lead exposure in prehispanic times in Gran Canaria.
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The trabecular bone mass (TBM) of the proximal epiphyses of right tibiae belonging to 273 prehispanic inhabitants of Gran Canaria (60.81% males and 35.53% females) were assessed by histomorphometrical analysis of undecalcified samples and compared with that of 41 samples from El Hierro (52.63% males
The occurrence of third molar agenesis was recorded in a sample of 1,492 maxillary and 1,718 mandibular arches belonging to the prehistoric settlers of the Gan Canaria, Tenerife, and La Gomera Islands (Canary Islands). There were significant sex differences only in the Tenerife sample for the maxill