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Dental topography and molar wear in Alouatta palliata from Costa Rica.

dc.contributor.author Dennis, JC
dc.contributor.author Glander, Kenneth Earl
dc.contributor.author Teaford, Mark F
dc.contributor.author Ungar, PS
dc.coverage.spatial United States
dc.date.accessioned 2013-02-26T19:24:56Z
dc.date.issued 2004-10
dc.identifier https://www.ncbi.nlm.nih.gov/pubmed/15365981
dc.identifier.issn 0002-9483
dc.identifier.uri https://hdl.handle.net/10161/6230
dc.description.abstract Paleoprimatologists depend on relationships between form and function of teeth to reconstruct the diets of fossil species. Most of this work has been limited to studies of unworn teeth. A new approach, dental topographic analysis, allows the characterization and comparison of worn primate teeth. Variably worn museum specimens have been used to construct species-specific wear sequences so that measurements can be compared by wear stage among taxa with known differences in diet. This assumes that individuals in a species tend to wear their molar teeth in similar ways, a supposition that has yet to be tested. Here we evaluate this assumption with a longitudinal study of changes in tooth form over time in primates. Fourteen individual mantled howling monkeys (Alouatta palliata) were captured and then recaptured after 2, 4, and 7 years when possible at Hacienda La Pacifica in Costa Rica between 1989-1999. Dental impressions were taken each time, and molar casts were produced and analyzed using dental topographic analysis. Results showed consistent decreases in crown slope and occlusal relief. In contrast, crown angularity, a measure of surface jaggedness, remained fairly constant except with extreme wear. There were no evident differences between specimens collected in different microhabitats. These results suggest that different individual mantled howling monkeys wear their teeth down in similar ways, evidently following a species-specific wear sequence. Dental topographic analysis may therefore be used to compare morphology among similarly worn individuals from different species.
dc.language eng
dc.relation.ispartof Am J Phys Anthropol
dc.relation.isversionof 10.1002/ajpa.10379
dc.relation.isreplacedby 10161/6240
dc.relation.isreplacedby http://hdl.handle.net/10161/6240
dc.subject Alouatta
dc.subject Animals
dc.subject Costa Rica
dc.subject Dental Impression Technique
dc.subject Dental Occlusion
dc.subject Environment
dc.subject Odontometry
dc.subject Tooth
dc.subject Tooth Attrition
dc.title Dental topography and molar wear in Alouatta palliata from Costa Rica.
dc.type Journal article
pubs.author-url https://www.ncbi.nlm.nih.gov/pubmed/15365981
pubs.begin-page 152
pubs.end-page 161
pubs.issue 2
pubs.organisational-group Duke
pubs.organisational-group Evolutionary Anthropology
pubs.organisational-group Trinity College of Arts & Sciences
pubs.publication-status Published
pubs.volume 125


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