Results 31 to 40 of about 12,206 (288)

Preservation of masseter muscle until the end stage in the SOD1G93A mouse model for ALS

Scientific Reports
Amyotrophic lateral sclerosis (ALS) progressively impairs motor neurons, leading to muscle weakness and loss of voluntary muscle control. This study compared the effects of SOD1 mutation on masticatory and limb muscles from disease onset to death in ALS ...
Sou Kawata, Soju Seki, Akira Nishiura, Yoshihiro Kitaoka, Kanako Iwamori, So-ichiro Fukada, Mikihiko Kogo, Susumu Tanaka   +7 more
doaj   +1 more source

Mandibular Vertical Growth Deficiency After Botulinum-Induced Hypotrophy of Masticatory Closing Muscles in Juvenile Nonhuman Primates

Frontiers in Physiology, 2019
The purpose of this study was to investigate the relationship between masticatory muscular hypotrophy and mandibular growth in juvenile nonhuman primates (cynolmolgus monkeys, Macaca fasicularis).
Hak-Jin Kim, Hye-Jin Tak, Joo-Won Moon, Sang-Hoon Kang, Seong Taek Kim, Jinquan He, Zhenguo Piao, Sang-Hwy Lee   +7 more
doaj   +1 more source

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

The 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

Efficiency of Electromyographic Examination in Dental Patients with Signs of Bruxism to Determine the Functional State of the Muscles of the Maxillofacial Region

Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki
The bioelectrical activity of the masticatory and temporal muscles at rest and under voluntary ten  sion in patients with clinical signs of bruxism was assessed.
S. P. Rubnikovich, A. S. Grishchenkov, Y. L. Denisova, E. V. Kuzmenko   +3 more
doaj   +1 more source

Initial fatigue of masseter muscles during the maximal voluntary teeth contraction [PDF]

Vojnosanitetski Pregled, 2002
Fatigue of striated muscles is defined as the impossibility to generate the expected or required force during the repeated contraction. During the maximal voluntary teeth contraction in the position of central occlusion the initial fatigue in masticatory
Miljković Živorad, Zeljković Milan, Anojčić Miloš   +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?

The 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, Shane Tucker, Stephan Lautenschlager   +2 more
wiley   +1 more source

Functioning of masticatory muscles in patients with fractures of lower jaw [PDF]

Саратовский научно-медицинский журнал, 2012
Research objective is to reveal functional changes of masticatory muscles in patients with fractures of lower jaw in combination with dentition abnormalities. Materials. 72 patients with such pathology have been examined.
Lepilin А.V., Konnov V.V., Bagaryan Е.А., Batusov N.A.   +3 more
doaj  

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

The 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, Romain Boman, Valentin Fischer, Valentina Segura, Clara Julémont, Z. Jack Tseng   +5 more
wiley   +1 more source

Effect of tens on the activation pattern of the masticatory muscles in TMD patients

Brazilian Journal of Oral Sciences, 2015
Temporomandibular disorder (TMD) is characterized by several signs and symptoms, such as pain and changes in the activation pattern of the masticatory muscles.
Delaine Rodrigues, Anamaria Siriani Oliveira, Fausto Bérzin   +2 more
doaj   +1 more source

Myological and osteological approaches to gape and bite force reconstruction in Smilodon fatalis

The Anatomical Record, EarlyView.
Abstract Masticatory gape and bite force are important behavioral and ecological variables. While much has been written about the highly derived masticatory anatomy of Smilodon fatalis, there remains a great deal of debate about their masticatory behaviors.
Ashley R. Deutsch, Arin Berger, Lara L. Martens, Benjamin R. Witt, Rachel L. J. Smith, Adam Hartstone‐Rose   +5 more
wiley   +1 more source