Results 61 to 70 of about 2,163,882 (321)

Zipping mechanism for force-generation by growing filament bundles [PDF]

open access: yesEPL 86, 68002 (2009), 2011
We investigate the force generation by polymerizing bundles of filaments, which form because of short-range attractive filament interactions. We show that bundles can generate forces by a zipping mechanism, which is not limited by buckling and operates in the fully buckled state. The critical zipping force, i.e.
arxiv   +1 more source

Clinical report of six-month follow-up after cementing PEEK crown on molars

open access: yesScientific Reports, 2022
We conducted a six-month clinical follow-up on computer-aided design/computer-aided manufacturing-fabricated molar polyetheretherketone PEEK crowns to investigate their therapeutic effect.
Hitomi Kimura   +4 more
doaj   +1 more source

Bending performance changes during prolonged canine eruption in saber‐toothed carnivores: A case study of Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract The canine of saber‐toothed predators represents one of the most specialized dental structures known. Hypotheses about the function of hypertrophied canines range from display and conspecific interaction, soft food processing, to active prey acquisition.
Z. Jack Tseng
wiley   +1 more source

The Effects of Chewing Exercises on Masticatory Function after Surgical Orthodontic Treatment

open access: yesApplied Sciences, 2021
Recovery of oral function is one of the most important objectives of orthognathic surgery. This study investigated the effects of a chewing exercise on chewing patterns and other oral functions after sagittal split ramus osteotomy (SSRO).
Shinichi Negishi   +2 more
doaj   +1 more source

Comparing cranial biomechanics between Barbourofelis fricki and Smilodon fatalis: Is there a universal killing‐bite among saber‐toothed predators?

open access: yesThe Anatomical Record, EarlyView.
Abstract Saber‐tooths, extinct apex predators with long and blade‐like upper canines, have appeared iteratively at least five times in the evolutionary history of vertebrates. Although saber‐tooths exhibit a relatively diverse range of morphologies, it is widely accepted that all killed their prey using the same predatory behavior. In this study, we CT‐
Borja Figueirido   +2 more
wiley   +1 more source

Is “Bite force” a reliable parameter to compare masticatory efficiency restoration following ORIF of anterior mandibular fractures?

open access: yesJournal of Oral Biology and Craniofacial Research, 2022
Objectives: Mandible is an integral part of masticatory system, and it is expected that it’s fracture will have a significant impact on occlusal forces, range of motion, muscle activity levels, and occlusion.
Shital Patel   +4 more
doaj  

The jaw is a second-class lever in Pedetes capensis (Rodentia: Pedetidae) [PDF]

open access: yesPeerJ, 2017
The mammalian jaw is often modelled as a third-class lever for the purposes of biomechanical analyses, owing to the position of the resultant muscle force between the jaw joint and the teeth.
Philip G. Cox
doaj   +2 more sources

Bite Force and Masticatory Muscle Architecture Adaptations in the Dietarily Diverse Musteloidea (Carnivora)

open access: yesThe Anatomical Record, 2019
Dietary ecology and its relationship with both muscle architecture and bite force potential has been studied in many mammalian (and non‐mammalian) taxa. However, despite the diversity of dietary niches that characterizes the superfamily Musteloidea, the ...
A. Hartstone-Rose   +2 more
semanticscholar   +1 more source

Growing sabers: Mandibular shape and biomechanical performance trajectories during the ontogeny of Smilodon fatalis

open access: yesThe Anatomical Record, EarlyView.
Abstract The evolution of organisms can be studied through the lens of developmental systems, as the timing of development of morphological features is an important aspect to consider when studying a phenotype. Such data can be challenging to obtain in fossil amniotes owing to the scarcity of their fossil record. However, the numerous remains of Rancho
Narimane Chatar   +5 more
wiley   +1 more source

Normal and altered masticatory load impact on the range of craniofacial shape variation: An analysis of pre-Hispanic and modern populations of the American Southern Cone.

open access: yesPLoS ONE, 2019
The reduction of masticatory load intensity resulting from dietary changes in human evolution has been proposed as an important factor that alters craniofacial shape in past and current populations.
Andrea P Eyquem   +4 more
doaj   +1 more source

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