Paul C. Dechow
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View article: Bite force production and the origin of <i>Homo</i>
Bite force production and the origin of <i>Homo</i> Open
The divergence of Homo from gracile australopiths has been described as a trend of decreasing dentognathic size and robusticity, precipitated by stone tool use and/or a shift to softer foods, including meat. Yet, mechanical evidence suppor…
View article: Issue Information
Issue Information Open
View article: Corrigendum to “Biomechanics of the mandible of Macaca mulatta during the power stroke of mastication: Loading, deformation, and strain regimes and the impact of food type” [Journal of Human Evolution 147 (2020) 102865]
Corrigendum to “Biomechanics of the mandible of Macaca mulatta during the power stroke of mastication: Loading, deformation, and strain regimes and the impact of food type” [Journal of Human Evolution 147 (2020) 102865] Open
View article: Mechanical compensation in the evolution of the early hominin feeding apparatus
Mechanical compensation in the evolution of the early hominin feeding apparatus Open
Australopiths, a group of hominins from the Plio-Pleistocene of Africa, are characterized by derived traits in their crania hypothesized to strengthen the facial skeleton against feeding loads and increase the efficiency of bite force prod…
View article: Biomechanics of the mandible of Macaca mulatta during the power stroke of mastication: Loading, deformation, and strain regimes and the impact of food type
Biomechanics of the mandible of Macaca mulatta during the power stroke of mastication: Loading, deformation, and strain regimes and the impact of food type Open
View article: Elastic properties of cortical bone using an ultrasonic technique v1
Elastic properties of cortical bone using an ultrasonic technique v1 Open
Because the used specimen´s size is too small for mechanical testing, elastic properties are assessed using an ultrasonic technique. Calculation of three-dimensional elastic properties is performed using ultrasonic techniques in cortical b…
View article: Divided zygoma in Holocene human populations from Northern China
Divided zygoma in Holocene human populations from Northern China Open
Objectives Divided zygoma (DZ) occurs in contemporaneous human populations, with the highest incidences in people from East Asia and Southern Africa. The present study examines the prevalence and variation of this condition in the Holocene…
View article: VEGF-C promotes the development of lymphatics in bone and bone loss
VEGF-C promotes the development of lymphatics in bone and bone loss Open
Patients with Gorham-Stout disease (GSD) have lymphatic vessels in their bones and their bones gradually disappear. Here, we report that mice that overexpress VEGF-C in bone exhibit a phenotype that resembles GSD. To drive VEGF-C expressio…
View article: Author response: VEGF-C promotes the development of lymphatics in bone and bone loss
Author response: VEGF-C promotes the development of lymphatics in bone and bone loss Open
View article: In vivo bone strain and finite element modeling of a rhesus macaque mandible during mastication
In vivo bone strain and finite element modeling of a rhesus macaque mandible during mastication Open
View article: Evolution of the Jugal/Zygomatic Bones
Evolution of the Jugal/Zygomatic Bones Open
This issue of the Anatomical Record is the second of a two‐volume set on the zygoma (also called the cheek bone, the zygomatic bone, the malar, or the jugal, the latter term being used in vertebrates other than mammals). The zygoma is an i…
View article: <scp>T</scp>he <scp>B</scp>iomechanics of <scp>B</scp>ony <scp>F</scp>acial “<scp>B</scp>uttresses” in <scp>S</scp>outh <scp>A</scp>frican <scp>A</scp>ustralopiths: <scp>A</scp>n <scp>E</scp>xperimental <scp>S</scp>tudy <scp>U</scp>sing <scp>F</scp>inite <scp>E</scp>lement <scp>A</scp>nalysis
<span>T</span>he <span>B</span>iomechanics of <span>B</span>ony <span>F</span>acial “<span>B</span>uttresses” in <span>S</span>outh <span>A</span>frican <span>A</span>ustralopiths: <span>A</span>n <span>E</span>xperimental <span>S</span>tudy <span>U</span>sing <span>F</span>inite <span>E</span>lement <span>A</span>nalysis Open
Australopiths exhibit a number of derived facial features that are thought to strengthen the face against high and/or repetitive loads associated with a diet that included mechanically challenging foods. Here, we use finite element analysi…
View article: Elastic Properties of Chimpanzee Craniofacial Cortical Bone
Elastic Properties of Chimpanzee Craniofacial Cortical Bone Open
Relatively few assessments of cranial biomechanics formally take into account variation in the material properties of cranial cortical bone. Our aim was to characterize the elastic properties of chimpanzee craniofacial cortical bone and co…
View article: <scp>D</scp>ivided <scp>Z</scp>ygomatic <scp>B</scp>one in <scp>P</scp>rimates <scp>W</scp>ith <scp>I</scp>mplications of <scp>S</scp>kull <scp>M</scp>orphology and <scp>B</scp>iomechanics
<span>D</span>ivided <span>Z</span>ygomatic <span>B</span>one in <span>P</span>rimates <span>W</span>ith <span>I</span>mplications of <span>S</span>kull <span>M</span>orphology and <span>B</span>iomechanics Open
Typically the zygoma is a single bone in the facial skeleton whose shape uniquely copes with loads associated with mastication. Rarely but naturally, the zygoma is divided into two or more parts by supernumerary sutures. These extra intraz…
View article: Internal Bone Architecture in the Zygoma of Human and <i>Pan</i>
Internal Bone Architecture in the Zygoma of Human and <i>Pan</i> Open
The internal and external anatomy of the primate zygoma is central to orofacial function, health, and disease. The importance of variation in its gross morphology across extinct and extant primate forms has been established using finite el…
View article: Human feeding biomechanics: performance, variation, and functional constraints
Human feeding biomechanics: performance, variation, and functional constraints Open
The evolution of the modern human ( Homo sapiens ) cranium is characterized by a reduction in the size of the feeding system, including reductions in the size of the facial skeleton, postcanine teeth, and the muscles involved in biting and…
View article: Human feeding biomechanics: performance, variation, and functional constraints
Human feeding biomechanics: performance, variation, and functional constraints Open
The evolution of the modern human ( Homo sapiens ) cranium is characterized by a reduction in the size of the feeding system, including reductions in the size of the facial skeleton, postcanine teeth, and the muscles involved in biting and…
View article: Human feeding biomechanics: performance, variation, and functional constraints
Human feeding biomechanics: performance, variation, and functional constraints Open
The evolution of the modern human ( Homo sapiens ) cranium is characterized by a reduction in the size of the feeding system, including reductions in the size of the facial skeleton, postcanine teeth, and the muscles involved in biting and…
View article: Mechanical evidence that Australopithecus sediba was limited in its ability to eat hard foods
Mechanical evidence that Australopithecus sediba was limited in its ability to eat hard foods Open
View article: Twist1 Is Essential for Tooth Morphogenesis and Odontoblast Differentiation
Twist1 Is Essential for Tooth Morphogenesis and Odontoblast Differentiation Open
Twist1 is a basic helix-loop-helix-containing transcription factor that is expressed in the dental mesenchyme during the early stages of tooth development. To better delineate its roles in tooth development, we generated Twist1 conditional…
View article: Laser-treated stainless steel mini-screw implants: 3D surface roughness, bone-implant contact, and fracture resistance analysis
Laser-treated stainless steel mini-screw implants: 3D surface roughness, bone-implant contact, and fracture resistance analysis Open
Laser treatment increased surface roughness without compromising fracture resistance. Despite increasing surface roughness, laser treatment did not improve BIC. Overall, it appears that medical grade SS has the potential to be substituted …