Document Detail


Primate dental enamel: what it says about diet.
MedLine Citation:
PMID:  19828968     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
What kinds of fractures do teeth sustain and how do they resist disintegration? This study involved the mechanical loading of extracted human and sea otter teeth using hard and soft indenters to simulate hard and soft diets. The tests were accompanied by real-time imaging. At least three types of fracture were seen in the enamel--median, radial and margin cracks. Each kind of fracture appears to have a different cause, although the distinction between median and radial cracks blurs as they propagate. Only margin cracks appear to form under soft indenters. Several aspects of tooth form can be described as devices to limit damage to a tooth crown against the onslaught of hard or soft foods. The damage modes of teeth are paralleled by the behavior of some bilayered hard foods.
Authors:
Peter W Lucas; Paul J Constantino; James J-W Lee; Adam Hartstone-Rose; Herzl Chai; Wah-Keat Lee; Nathaniel Dominy
Related Documents :
4203358 - The structure of the zonula occludens. a single fibril model based on freeze-fracture.
7911758 - A retrospective study of dento-alveolar injuries.
12167898 - Root coverage using alloderm acellular dermal graft material.
9226938 - Evaluation of fracture planes and cell morphology in complementary fractures of culture...
24326028 - New interlocking intramedullary radius and ulna nails for treating forearm diaphyseal f...
1437028 - Temporomandibular joint: surgically created disk displacement causes arthrosis in the r...
Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, U.S. Gov't, Non-P.H.S.; Review     Date:  2009-09-21
Journal Detail:
Title:  Frontiers of oral biology     Volume:  13     ISSN:  1420-2433     ISO Abbreviation:  Front Oral Biol     Publication Date:  2009  
Date Detail:
Created Date:  2009-10-15     Completed Date:  2010-03-03     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9812095     Medline TA:  Front Oral Biol     Country:  Switzerland    
Other Details:
Languages:  eng     Pagination:  44-8     Citation Subset:  D; IM    
Copyright Information:
Copyright (c) 2009 S. Karger AG, Basel.
Affiliation:
Department of Anthropology, George Washington University, Washington, DC 20052, USA. peterwlucas@gmail.com
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological
Animals
Bite Force
Dental Enamel / injuries,  pathology*
Diet / adverse effects*
Humans
Mastication
Otters
Primates
Stress, Mechanical
Tooth / anatomy & histology*
Tooth Fractures / classification,  etiology*,  pathology

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


Previous Document:  Tooth Form and Function: Insights into Adaptation through the Analysis of Dental Microwear.
Next Document:  Testing the Utility of Dental Morphological Traits Commonly Used in the Forensic Identification of A...