Experimental stress analysis of topographic diversity in early hominid gnathic morphology
Identifieur interne : 004240 ( Istex/Corpus ); précédent : 004239; suivant : 004241Experimental stress analysis of topographic diversity in early hominid gnathic morphology
Auteurs : Steven C. Ward ; Stephen MolnarSource :
- American Journal of Physical Anthropology [ 0002-9483 ] ; 1980-09.
English descriptors
- KwdEn :
- Acta anat, Aluminum plate, Alveolar process, Anat, Anthropol, Comparative anatomy, Craniomandibular musculature, Dent, Early hominid, Early hominid mastication, Early hominids, Experimental stress analysis, First molar, Force system, Fossil, Fringe order, Functional correlates, Functional significance, Hadar formation, High magnitude, Highest position, Hominid, Hominid differentiation, Interproximal contact, Joint position, Mammalian jaws, Mandible, Mandible frame, Mandibular, Mandibular corpus, Mandibular form, Mandibular ramus height, Masseter, Masseter cable, Masseter cables, Mastication, Masticatory, Masticatory muscles, Material fringe value, Mechanical simulation, Medial pterygoid, Mesial, Model teeth, Molar, Molnar, Moment arms, Morphology, Muscle attachment surfaces, Muscle cables, Musculature, Occlusal, Occlusal forces, Occlusal load, Occlusal loads, Occlusal plane, Occlusion, Oral physiology, Periodontal ligament, Photoelastic, Photoelastic fringes, Phys, Power stroke, Primate, Pterygoid, Ramus, Response curve, Robust australopithecines, Second molar, Simulation, Simulation experiments, Simulation system, Strain gage, Strain gages, Stress analysis, Superficial masseter muscle, Swivel joints, Tall mandibular rami, Tall rami, Temporalis, Topographic diversity, Topographic relationships, Torsional stresses, Urethane resin, Vector geometry, Vertical distance, Zygomatic, Zygomatic root position.
- Teeft :
- Acta anat, Aluminum plate, Alveolar process, Anat, Anthropol, Comparative anatomy, Craniomandibular musculature, Dent, Early hominid, Early hominid mastication, Early hominids, Experimental stress analysis, First molar, Force system, Fossil, Fringe order, Functional correlates, Functional significance, Hadar formation, High magnitude, Highest position, Hominid, Hominid differentiation, Interproximal contact, Joint position, Mammalian jaws, Mandible, Mandible frame, Mandibular, Mandibular corpus, Mandibular form, Mandibular ramus height, Masseter, Masseter cable, Masseter cables, Mastication, Masticatory, Masticatory muscles, Material fringe value, Mechanical simulation, Medial pterygoid, Mesial, Model teeth, Molar, Molnar, Moment arms, Morphology, Muscle attachment surfaces, Muscle cables, Musculature, Occlusal, Occlusal forces, Occlusal load, Occlusal loads, Occlusal plane, Occlusion, Oral physiology, Periodontal ligament, Photoelastic, Photoelastic fringes, Phys, Power stroke, Primate, Pterygoid, Ramus, Response curve, Robust australopithecines, Second molar, Simulation, Simulation experiments, Simulation system, Strain gage, Strain gages, Stress analysis, Superficial masseter muscle, Swivel joints, Tall mandibular rami, Tall rami, Temporalis, Topographic diversity, Topographic relationships, Torsional stresses, Urethane resin, Vector geometry, Vertical distance, Zygomatic, Zygomatic root position.
Abstract
Reconstructing the biomechanics of early hominid mastication is a key element in most models of hominid differentiation. Traditionally, ostelogical features marking muscle attachment surfaces have served as a reference system from which the vector geometry of the masticatory force system and resultant force distributions could be predicted. To augment traditional morphological and computational approaches, we developed a simulation system capable of replicating human and non‐human primate chewing motions. The forces of occlusion are recorded as photoelastic fringes in a urethane alveolar process. Simulation experiments evaluating the functional correlates of topographic diversity in zygomatic root position and mandibular ramus height in early hominids indicated that the mandibles and dentitions of robust australopithecines are well adapted to sustain high magnitude, low gradient load distributions.
Url:
DOI: 10.1002/ajpa.1330530310
Links to Exploration step
ISTEX:85C3887748284955A64B753A221500671435F6E7Le document en format XML
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Ward</name><affiliation><mods:affiliation>Department of Sociology and Anthropology, Kent State University, Kent, Ohio 44242</mods:affiliation></affiliation><affiliation><mods:affiliation>Human Anatomy Program, Northeast Ohio Universities College of Medicine, Rootstown, Ohio 44272</mods:affiliation></affiliation></author><author><name sortKey="Molnar, Stephen" sort="Molnar, Stephen" uniqKey="Molnar S" first="Stephen" last="Molnar">Stephen Molnar</name><affiliation><mods:affiliation>Department of Anthropology, Washington University, St. Louis, Missouri 63130</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j" type="main">American Journal of Physical Anthropology</title><title level="j" type="alt">AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY</title><idno type="ISSN">0002-9483</idno><idno type="eISSN">1096-8644</idno><imprint><biblScope unit="vol">53</biblScope><biblScope unit="issue">3</biblScope><biblScope unit="page" 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formation</term><term>High magnitude</term><term>Highest position</term><term>Hominid</term><term>Hominid differentiation</term><term>Interproximal contact</term><term>Joint position</term><term>Mammalian jaws</term><term>Mandible</term><term>Mandible frame</term><term>Mandibular</term><term>Mandibular corpus</term><term>Mandibular form</term><term>Mandibular ramus height</term><term>Masseter</term><term>Masseter cable</term><term>Masseter cables</term><term>Mastication</term><term>Masticatory</term><term>Masticatory muscles</term><term>Material fringe value</term><term>Mechanical simulation</term><term>Medial pterygoid</term><term>Mesial</term><term>Model teeth</term><term>Molar</term><term>Molnar</term><term>Moment arms</term><term>Morphology</term><term>Muscle attachment surfaces</term><term>Muscle cables</term><term>Musculature</term><term>Occlusal</term><term>Occlusal forces</term><term>Occlusal load</term><term>Occlusal loads</term><term>Occlusal plane</term><term>Occlusion</term><term>Oral physiology</term><term>Periodontal ligament</term><term>Photoelastic</term><term>Photoelastic fringes</term><term>Phys</term><term>Power stroke</term><term>Primate</term><term>Pterygoid</term><term>Ramus</term><term>Response curve</term><term>Robust australopithecines</term><term>Second molar</term><term>Simulation</term><term>Simulation experiments</term><term>Simulation system</term><term>Strain gage</term><term>Strain gages</term><term>Stress analysis</term><term>Superficial masseter muscle</term><term>Swivel joints</term><term>Tall mandibular rami</term><term>Tall rami</term><term>Temporalis</term><term>Topographic diversity</term><term>Topographic relationships</term><term>Torsional stresses</term><term>Urethane resin</term><term>Vector geometry</term><term>Vertical distance</term><term>Zygomatic</term><term>Zygomatic root position</term></keywords><keywords scheme="Teeft" xml:lang="en"><term>Acta anat</term><term>Aluminum plate</term><term>Alveolar process</term><term>Anat</term><term>Anthropol</term><term>Comparative anatomy</term><term>Craniomandibular musculature</term><term>Dent</term><term>Early hominid</term><term>Early hominid mastication</term><term>Early hominids</term><term>Experimental stress analysis</term><term>First molar</term><term>Force system</term><term>Fossil</term><term>Fringe order</term><term>Functional correlates</term><term>Functional significance</term><term>Hadar formation</term><term>High magnitude</term><term>Highest position</term><term>Hominid</term><term>Hominid differentiation</term><term>Interproximal contact</term><term>Joint position</term><term>Mammalian jaws</term><term>Mandible</term><term>Mandible frame</term><term>Mandibular</term><term>Mandibular corpus</term><term>Mandibular form</term><term>Mandibular ramus height</term><term>Masseter</term><term>Masseter cable</term><term>Masseter cables</term><term>Mastication</term><term>Masticatory</term><term>Masticatory muscles</term><term>Material fringe value</term><term>Mechanical simulation</term><term>Medial pterygoid</term><term>Mesial</term><term>Model teeth</term><term>Molar</term><term>Molnar</term><term>Moment arms</term><term>Morphology</term><term>Muscle attachment surfaces</term><term>Muscle cables</term><term>Musculature</term><term>Occlusal</term><term>Occlusal forces</term><term>Occlusal load</term><term>Occlusal loads</term><term>Occlusal plane</term><term>Occlusion</term><term>Oral physiology</term><term>Periodontal ligament</term><term>Photoelastic</term><term>Photoelastic fringes</term><term>Phys</term><term>Power stroke</term><term>Primate</term><term>Pterygoid</term><term>Ramus</term><term>Response curve</term><term>Robust australopithecines</term><term>Second molar</term><term>Simulation</term><term>Simulation experiments</term><term>Simulation system</term><term>Strain gage</term><term>Strain gages</term><term>Stress analysis</term><term>Superficial masseter muscle</term><term>Swivel joints</term><term>Tall mandibular rami</term><term>Tall rami</term><term>Temporalis</term><term>Topographic diversity</term><term>Topographic relationships</term><term>Torsional stresses</term><term>Urethane resin</term><term>Vector geometry</term><term>Vertical distance</term><term>Zygomatic</term><term>Zygomatic root position</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Reconstructing the biomechanics of early hominid mastication is a key element in most models of hominid differentiation. Traditionally, ostelogical features marking muscle attachment surfaces have served as a reference system from which the vector geometry of the masticatory force system and resultant force distributions could be predicted. To augment traditional morphological and computational approaches, we developed a simulation system capable of replicating human and non‐human primate chewing motions. The forces of occlusion are recorded as photoelastic fringes in a urethane alveolar process. Simulation experiments evaluating the functional correlates of topographic diversity in zygomatic root position and mandibular ramus height in early hominids indicated that the mandibles and dentitions of robust australopithecines are well adapted to sustain high magnitude, low gradient load distributions.</div></front></TEI><istex><corpusName>wiley</corpusName><keywords><teeft><json:string>hominid</json:string><json:string>mandibular</json:string><json:string>masseter</json:string><json:string>ramus</json:string><json:string>occlusal</json:string><json:string>mandible</json:string><json:string>masticatory</json:string><json:string>photoelastic</json:string><json:string>molnar</json:string><json:string>zygomatic</json:string><json:string>phys</json:string><json:string>anthropol</json:string><json:string>temporalis</json:string><json:string>fossil</json:string><json:string>molar</json:string><json:string>mastication</json:string><json:string>mesial</json:string><json:string>pterygoid</json:string><json:string>anat</json:string><json:string>mandible frame</json:string><json:string>primate</json:string><json:string>masseter cable</json:string><json:string>medial pterygoid</json:string><json:string>zygomatic root position</json:string><json:string>occlusal forces</json:string><json:string>occlusal plane</json:string><json:string>mandibular corpus</json:string><json:string>periodontal ligament</json:string><json:string>fringe order</json:string><json:string>stress analysis</json:string><json:string>mandibular ramus height</json:string><json:string>simulation</json:string><json:string>musculature</json:string><json:string>early hominids</json:string><json:string>first molar</json:string><json:string>alveolar process</json:string><json:string>photoelastic fringes</json:string><json:string>hadar formation</json:string><json:string>power stroke</json:string><json:string>high magnitude</json:string><json:string>second molar</json:string><json:string>moment arms</json:string><json:string>occlusal load</json:string><json:string>robust australopithecines</json:string><json:string>simulation system</json:string><json:string>occlusion</json:string><json:string>joint position</json:string><json:string>topographic relationships</json:string><json:string>craniomandibular musculature</json:string><json:string>strain gages</json:string><json:string>mammalian jaws</json:string><json:string>early hominid mastication</json:string><json:string>hominid differentiation</json:string><json:string>model teeth</json:string><json:string>urethane resin</json:string><json:string>material fringe value</json:string><json:string>response curve</json:string><json:string>muscle attachment surfaces</json:string><json:string>aluminum plate</json:string><json:string>experimental stress analysis</json:string><json:string>swivel joints</json:string><json:string>superficial masseter muscle</json:string><json:string>simulation experiments</json:string><json:string>vertical distance</json:string><json:string>torsional stresses</json:string><json:string>functional correlates</json:string><json:string>muscle cables</json:string><json:string>interproximal contact</json:string><json:string>occlusal loads</json:string><json:string>force system</json:string><json:string>masseter cables</json:string><json:string>vector geometry</json:string><json:string>highest position</json:string><json:string>early hominid</json:string><json:string>tall mandibular rami</json:string><json:string>tall rami</json:string><json:string>mechanical simulation</json:string><json:string>comparative anatomy</json:string><json:string>topographic diversity</json:string><json:string>masticatory muscles</json:string><json:string>oral physiology</json:string><json:string>functional significance</json:string><json:string>mandibular form</json:string><json:string>acta anat</json:string><json:string>strain gage</json:string><json:string>morphology</json:string><json:string>dent</json:string></teeft></keywords><author><json:item><name>Steven C. Ward</name><affiliations><json:string>Department of Sociology and Anthropology, Kent State University, Kent, Ohio 44242</json:string><json:string>Human Anatomy Program, Northeast Ohio Universities College of Medicine, Rootstown, Ohio 44272</json:string></affiliations></json:item><json:item><name>Stephen Molnar</name><affiliations><json:string>Department of Anthropology, Washington University, St. Louis, Missouri 63130</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Biomechanics</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>hominid mastication</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>photoelastic fringes</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>robust australopithecines</value></json:item></subject><articleId><json:string>AJPA1330530310</json:string></articleId><arkIstex>ark:/67375/WNG-CLF02T67-V</arkIstex><language><json:string>eng</json:string></language><originalGenre><json:string>article</json:string></originalGenre><abstract>Reconstructing the biomechanics of early hominid mastication is a key element in most models of hominid differentiation. Traditionally, ostelogical features marking muscle attachment surfaces have served as a reference system from which the vector geometry of the masticatory force system and resultant force distributions could be predicted. To augment traditional morphological and computational approaches, we developed a simulation system capable of replicating human and non‐human primate chewing motions. The forces of occlusion are recorded as photoelastic fringes in a urethane alveolar process. Simulation experiments evaluating the functional correlates of topographic diversity in zygomatic root position and mandibular ramus height in early hominids indicated that the mandibles and dentitions of robust australopithecines are well adapted to sustain high magnitude, low gradient load distributions.</abstract><qualityIndicators><score>8.413</score><pdfWordCount>4949</pdfWordCount><pdfCharCount>31934</pdfCharCount><pdfVersion>1.3</pdfVersion><pdfPageCount>13</pdfPageCount><pdfPageSize>486 x 720 pts</pdfPageSize><refBibsNative>true</refBibsNative><abstractWordCount>122</abstractWordCount><abstractCharCount>911</abstractCharCount><keywordCount>4</keywordCount></qualityIndicators><title>Experimental stress analysis of topographic diversity in early hominid gnathic morphology</title><pmid><json:string>6781358</json:string></pmid><genre><json:string>article</json:string></genre><host><title>American Journal of Physical Anthropology</title><language><json:string>unknown</json:string></language><doi><json:string>10.1002/(ISSN)1096-8644</json:string></doi><issn><json:string>0002-9483</json:string></issn><eissn><json:string>1096-8644</json:string></eissn><publisherId><json:string>AJPA</json:string></publisherId><volume>53</volume><issue>3</issue><pages><first>383</first><last>395</last><total>13</total></pages><genre><json:string>journal</json:string></genre><subject><json:item><value>Article</value></json:item></subject></host><namedEntities><unitex><date><json:string>1980</json:string></date><geogName></geogName><orgName><json:string>University of Michigan</json:string><json:string>MOLNAR Department of Sociology and Anthropology</json:string><json:string>Cambridge University</json:string><json:string>University of Michigan School of Dentistry</json:string><json:string>OfDiarthrognathus Lovejoy, CO</json:string><json:string>National Institutes of Health</json:string><json:string>South Africa Robinson</json:string><json:string>Engineering Design Center Report</json:string><json:string>Experimental Stress Lovejoy, CO</json:string><json:string>and Department of Anthropology, Washington Uniuersity, St</json:string><json:string>Laboratory of Physical Anthropolom, Cleveland Museum of Natural History</json:string></orgName><orgName_funder></orgName_funder><orgName_provider></orgName_provider><persName><json:string>J. Biol</json:string><json:string>Miss Suzanne</json:string><json:string>J. Phys</json:string><json:string>Owen Lovejoy</json:string><json:string>J. Carlsson</json:string><json:string>J. Prosth</json:string><json:string>J. Periodont</json:string><json:string>Larry Rubens</json:string><json:string>A. de Wolf-Exalto</json:string><json:string>J. Ortho</json:string><json:string>Donald Johanson</json:string><json:string>Ann Arbor</json:string><json:string>J. Hum</json:string><json:string>J. Primates</json:string><json:string>Gustav Fisher</json:string><json:string>Wolf Exalto</json:string><json:string>J. Dent</json:string><json:string>J. Assn</json:string><json:string>Y. Kawamura</json:string><json:string>J. Morphol</json:string></persName><placeName><json:string>Leipzig</json:string><json:string>Ethiopia</json:string><json:string>The Hague</json:string><json:string>South Africa</json:string><json:string>Basel</json:string><json:string>York</json:string><json:string>Tanzania</json:string><json:string>Cambridge</json:string></placeName><ref_url></ref_url><ref_bibl><json:string>Ralph and Williams, 1975</json:string><json:string>Simons, 1976</json:string><json:string>Ahlgren, 1966</json:string><json:string>Tattersall, 1972</json:string><json:string>Graf et al., 1974</json:string><json:string>Crompton, 1963</json:string><json:string>Bramble, 1978</json:string><json:string>Johanson et al., 1978</json:string><json:string>Hylander, 1979</json:string><json:string>Ward, 1974</json:string><json:string>Scapino, 1972</json:string><json:string>Crompton and Hiiemae, 1969</json:string><json:string>Moss, 1968</json:string><json:string>Du Brul, 1974, 1977</json:string><json:string>Carlson, 1977</json:string><json:string>Ward, 1979</json:string><json:string>Vitti and Basmajian, 1977</json:string><json:string>Molnar, 1968</json:string><json:string>Tobias, 1967</json:string><json:string>Graf, 1975</json:string><json:string>White, 1977</json:string><json:string>Gingerich, 1972</json:string><json:string>Jolly, 1970</json:string><json:string>Dempster et al., (1963)</json:string><json:string>Lovejoy and Ferrini (1974)</json:string><json:string>Roberts and Tattersall, 1974</json:string><json:string>Gaspard et al.</json:string><json:string>Scott and Ash, 1966</json:string><json:string>Pilbeam, 1970</json:string><json:string>Brodsky et al., 1975</json:string><json:string>Ward (1974)</json:string><json:string>Carlsson, 1974</json:string><json:string>Lovejoy (1979, p. 243)</json:string><json:string>Davis, 1964</json:string><json:string>Hayashi et al., 1975</json:string><json:string>Maynard-Smith and Savage, 1959</json:string><json:string>Molnar and Ward, 1977</json:string><json:string>Greaves, 1974</json:string><json:string>White (197713)</json:string><json:string>Mehta et al., 1975</json:string><json:string>Herring et al. 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Traditionally, ostelogical features marking muscle attachment surfaces have served as a reference system from which the vector geometry of the masticatory force system and resultant force distributions could be predicted. To augment traditional morphological and computational approaches, we developed a simulation system capable of replicating human and non‐human primate chewing motions. The forces of occlusion are recorded as photoelastic fringes in a urethane alveolar process. Simulation experiments evaluating the functional correlates of topographic diversity in zygomatic root position and mandibular ramus height in early hominids indicated that the mandibles and dentitions of robust australopithecines are well adapted to sustain high magnitude, low gradient load distributions.</p></abstract><textClass><keywords xml:lang="en"><term xml:id="kwd1">Biomechanics</term><term xml:id="kwd2">hominid mastication</term><term xml:id="kwd3">photoelastic fringes</term><term xml:id="kwd4">robust australopithecines</term></keywords><keywords rend="articleCategory"><term>Article</term></keywords><keywords rend="tocHeading1"><term>Articles</term></keywords></textClass><langUsage><language ident="en"></language></langUsage></profileDesc></teiHeader></istex:fulltextTEI><json:item><extension>txt</extension><original>false</original><mimetype>text/plain</mimetype><uri>https://api.istex.fr/document/85C3887748284955A64B753A221500671435F6E7/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Wiley, elements deleted: body"><istex:xmlDeclaration>version="1.0" encoding="UTF-8" standalone="yes"</istex:xmlDeclaration><istex:document><component version="2.0" type="serialArticle" xml:lang="en"><header><publicationMeta level="product"><publisherInfo><publisherName>Wiley Subscription Services, Inc., A Wiley Company</publisherName><publisherLoc>New York</publisherLoc></publisherInfo><doi registered="yes">10.1002/(ISSN)1096-8644</doi><issn type="print">0002-9483</issn><issn type="electronic">1096-8644</issn><idGroup><id type="product" value="AJPA"></id></idGroup><titleGroup><title type="main" xml:lang="en" sort="AMERICAN JOURNAL OF PHYSICAL ANTHROPOLOGY">American Journal of Physical Anthropology</title><title type="short">Am. 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Traditionally, ostelogical features marking muscle attachment surfaces have served as a reference system from which the vector geometry of the masticatory force system and resultant force distributions could be predicted. To augment traditional morphological and computational approaches, we developed a simulation system capable of replicating human and non‐human primate chewing motions. The forces of occlusion are recorded as photoelastic fringes in a urethane alveolar process. 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Traditionally, ostelogical features marking muscle attachment surfaces have served as a reference system from which the vector geometry of the masticatory force system and resultant force distributions could be predicted. To augment traditional morphological and computational approaches, we developed a simulation system capable of replicating human and non‐human primate chewing motions. The forces of occlusion are recorded as photoelastic fringes in a urethane alveolar process. Simulation experiments evaluating the functional correlates of topographic diversity in zygomatic root position and mandibular ramus height in early hominids indicated that the mandibles and dentitions of robust australopithecines are well adapted to sustain high magnitude, low gradient load distributions.</abstract><subject lang="en"><genre>keywords</genre><topic>Biomechanics</topic><topic>hominid mastication</topic><topic>photoelastic fringes</topic><topic>robust australopithecines</topic></subject><relatedItem type="host"><titleInfo><title>American Journal of Physical Anthropology</title></titleInfo><titleInfo type="abbreviated"><title>Am. J. Phys. 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