Hominin lower second premolar morphology: evolutionary inferences through geometric morphometric analysis
نویسندگان
چکیده
منابع مشابه
Hominin lower second premolar morphology: evolutionary inferences through geometric morphometric analysis.
Mandibular premolars are increasingly used in taxon-specific diagnostic analyses of hominins. Among the principal difficulties in these evaluations is the absence of discrete, discernible, and comparable anatomical structures for rigorous quantitative assessment. Previous research has addressed either internal crown surface features (such as cusps and fossae) or the morphology of the crown outl...
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This article is the third of a series that explores hominin dental crown morphology by means of geometric morphometrics. After the analysis of the lower second premolar and the upper first molar crown shapes, we apply the same technique to lower first premolar morphology. Our results show a clear distinction between the morphology seen in earlier hominin taxa such as Australopithecus and Africa...
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Lower second premolars account for approximately 24 per cent of impactions, excluding third molars, even though most reports in the literature relating to impacted teeth address the maxillary canine, with relatively few reports on the lower second premolar. Conservative management involves surgical exposure of the crown, however, subsequent premolar eruption is unpredictable. A case is describe...
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ژورنال
عنوان ژورنال: Journal of Human Evolution
سال: 2006
ISSN: 0047-2484
DOI: 10.1016/j.jhevol.2005.12.004