Muscles arising in the zygomatic arch that close the jaw. Their nerve supply is masseteric from the mandibular division of the trigeminal nerve. (From Stedman, 25th ed)
A masticatory muscle whose action is closing the jaws; its posterior portion retracts the mandible.
A masticatory muscle whose action is closing the jaws.
The force applied by the masticatory muscles in dental occlusion.
The act and process of chewing and grinding food in the mouth.
Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side.
Pain in the facial region including orofacial pain and craniofacial pain. Associated conditions include local inflammatory and neoplastic disorders and neuralgic syndromes involving the trigeminal, facial, and glossopharyngeal nerves. Conditions which feature recurrent or persistent facial pain as the primary manifestation of disease are referred to as FACIAL PAIN SYNDROMES.
Bony structure of the mouth that holds the teeth. It consists of the MANDIBLE and the MAXILLA.
The largest and strongest bone of the FACE constituting the lower jaw. It supports the lower teeth.
The mouth, teeth, jaws, pharynx, and related structures as they relate to mastication, deglutition, and speech.
A sleep disorder characterized by grinding and clenching of the teeth and forceful lateral or protrusive jaw movements. Sleep bruxism may be associated with TOOTH INJURIES; TEMPOROMANDIBULAR JOINT DISORDERS; sleep disturbances; and other conditions.
An articulation between the condyle of the mandible and the articular tubercle of the temporal bone.
A symptom complex consisting of pain, muscle tenderness, clicking in the joint, and limitation or alteration of mandibular movement. The symptoms are subjective and manifested primarily in the masticatory muscles rather than the temporomandibular joint itself. Etiologic factors are uncertain but include occlusal dysharmony and psychophysiologic factors.
The relationship of all the components of the masticatory system in normal function. It has special reference to the position and contact of the maxillary and mandibular teeth for the highest efficiency during the excursive movements of the jaw that are essential for mastication. (From Jablonski, Dictionary of Dentistry, 1992, p556, p472)
A disorder characterized by grinding and clenching of the teeth.
Rigid or flexible appliances that overlay the occlusal surfaces of the teeth. They are used to treat clenching and bruxism and their sequelae, and to provide temporary relief from muscle or temporomandibular joint pain.
A variety of conditions affecting the anatomic and functional characteristics of the temporomandibular joint. Factors contributing to the complexity of temporomandibular diseases are its relation to dentition and mastication and the symptomatic effects in other areas which account for referred pain to the joint and the difficulties in applying traditional diagnostic procedures to temporomandibular joint pathology where tissue is rarely obtained and x-rays are often inadequate or nonspecific. Common diseases are developmental abnormalities, trauma, subluxation, luxation, arthritis, and neoplasia. (From Thoma's Oral Pathology, 6th ed, pp577-600)
A branch of the trigeminal (5th cranial) nerve. The mandibular nerve carries motor fibers to the muscles of mastication and sensory fibers to the teeth and gingivae, the face in the region of the mandible, and parts of the dura.
Contractile tissue that produces movement in animals.
Large, multinucleate single cells, either cylindrical or prismatic in shape, that form the basic unit of SKELETAL MUSCLE. They consist of MYOFIBRILS enclosed within and attached to the SARCOLEMMA. They are derived from the fusion of skeletal myoblasts (MYOBLASTS, SKELETAL) into a syncytium, followed by differentiation.
The SKELETON of the HEAD including the FACIAL BONES and the bones enclosing the BRAIN.
Recording of the changes in electric potential of muscle by means of surface or needle electrodes.
Muscles of facial expression or mimetic muscles that include the numerous muscles supplied by the facial nerve that are attached to and move the skin of the face. (From Stedman, 25th ed)
Either one of the two small elongated rectangular bones that together form the bridge of the nose.
The measurement of the dimensions of the HEAD.
A process leading to shortening and/or development of tension in muscle tissue. Muscle contraction occurs by a sliding filament mechanism whereby actin filaments slide inward among the myosin filaments.
The larger subunits of MYOSINS. The heavy chains have a molecular weight of about 230 kDa and each heavy chain is usually associated with a dissimilar pair of MYOSIN LIGHT CHAINS. The heavy chains possess actin-binding and ATPase activity.
The complement of teeth in the jaws after the eruption of some of the permanent teeth but before all the deciduous teeth are absent. (Boucher's Clinical Dental Terminology, 4th ed)
The protein constituents of muscle, the major ones being ACTINS and MYOSINS. More than a dozen accessory proteins exist including TROPONIN; TROPOMYOSIN; and DYSTROPHIN.
Unstriated and unstriped muscle, one of the muscles of the internal organs, blood vessels, hair follicles, etc. Contractile elements are elongated, usually spindle-shaped cells with centrally located nuclei. Smooth muscle fibers are bound together into sheets or bundles by reticular fibers and frequently elastic nets are also abundant. (From Stedman, 25th ed)
A subtype of striated muscle, attached by TENDONS to the SKELETON. Skeletal muscles are innervated and their movement can be consciously controlled. They are also called voluntary muscles.
The 5th and largest cranial nerve. The trigeminal nerve is a mixed motor and sensory nerve. The larger sensory part forms the ophthalmic, mandibular, and maxillary nerves which carry afferents sensitive to external or internal stimuli from the skin, muscles, and joints of the face and mouth and from the teeth. Most of these fibers originate from cells of the TRIGEMINAL GANGLION and project to the TRIGEMINAL NUCLEUS of the brain stem. The smaller motor part arises from the brain stem trigeminal motor nucleus and innervates the muscles of mastication.
The properties, processes, and behavior of biological systems under the action of mechanical forces.
The spread of response if stimulation is prolonged. (Campbell's Psychiatric Dictionary, 8th ed.)
Dental occlusion in which the occlusal contact of the teeth on the working side of the jaw is accompanied by the harmonious contact of the teeth on the opposite (balancing) side. (From Jablonski, Dictionary of Dentistry, 1992, p556)
The nonstriated involuntary muscle tissue of blood vessels.
A registration of any positional relationship of the mandible in reference to the maxillae. These records may be any of the many vertical, horizontal, or orientation relations. (Jablonski, Illustrated Dictionary of Dentistry)
Developmental events leading to the formation of adult muscular system, which includes differentiation of the various types of muscle cell precursors, migration of myoblasts, activation of myogenesis and development of muscle anchorage.
The neck muscles consist of the platysma, splenius cervicis, sternocleidomastoid(eus), longus colli, the anterior, medius, and posterior scalenes, digastric(us), stylohyoid(eus), mylohyoid(eus), geniohyoid(eus), sternohyoid(eus), omohyoid(eus), sternothyroid(eus), and thyrohyoid(eus).
The non-genetic biological changes of an organism in response to challenges in its ENVIRONMENT.
Skeletal muscle fibers characterized by their expression of the Type II MYOSIN HEAVY CHAIN isoforms which have high ATPase activity and effect several other functional properties - shortening velocity, power output, rate of tension redevelopment. Several fast types have been identified.
Contact between opposing teeth during a person's habitual bite.
Skeletal muscle fibers characterized by their expression of the Type I MYOSIN HEAVY CHAIN isoforms which have low ATPase activity and effect several other functional properties - shortening velocity, power output, rate of tension redevelopment.
Therapeutic practices which are not currently considered an integral part of conventional allopathic medical practice. They may lack biomedical explanations but as they become better researched some (PHYSICAL THERAPY MODALITIES; DIET; ACUPUNCTURE) become widely accepted whereas others (humors, radium therapy) quietly fade away, yet are important historical footnotes. Therapies are termed as Complementary when used in addition to conventional treatments and as Alternative when used instead of conventional treatment.
Inflammation of a muscle or muscle tissue.
Diseases of the domestic dog (Canis familiaris). This term does not include diseases of wild dogs, WOLVES; FOXES; and other Canidae for which the heading CARNIVORA is used.
Longitudinal cavities in the spinal cord, most often in the cervical region, which may extend for multiple spinal levels. The cavities are lined by dense, gliogenous tissue and may be associated with SPINAL CORD NEOPLASMS; spinal cord traumatic injuries; and vascular malformations. Syringomyelia is marked clinically by pain and PARESTHESIA, muscular atrophy of the hands, and analgesia with thermoanesthesia of the hands and arms, but with the tactile sense preserved (sensory dissociation). Lower extremity spasticity and incontinence may also develop. (From Adams et al., Principles of Neurology, 6th ed, p1269)
Muscular pain in numerous body regions that can be reproduced by pressure on TRIGGER POINTS, localized hardenings in skeletal muscle tissue. Pain is referred to a location distant from the trigger points. A prime example is the TEMPOROMANDIBULAR JOINT DYSFUNCTION SYNDROME.
Discrete spots in taut bands of muscle that produce local and referred pain when muscle bands are compressed.
A type of pain that is perceived in an area away from the site where the pain arises, such as facial pain caused by lesion of the VAGUS NERVE, or throat problem generating referred pain in the ear.
Analgesia produced by the insertion of ACUPUNCTURE needles at certain ACUPUNCTURE POINTS on the body. This activates small myelinated nerve fibers in the muscle which transmit impulses to the spinal cord and then activate three centers - the spinal cord, midbrain and pituitary/hypothalamus - to produce analgesia.

Blepharospasm-oromandibular dystonia syndrome (Brueghel's syndrome). A variant of adult-onset torsion dystonia? (1/293)

Thirty-nine patients with the idiopathic blepharospasm-oromandibular dystonia syndrome are described. All presented in adult life, usually in the sixth decade; women were more commonly affected than men. Thirteen had blepharospasm alone, nine had oromandibular dystonia alone, and 17 had both. Torticollis or dystonic writer's camp preceded the syndrome in two patients. Eight other patients developed toritocollis, dystonic posturing of the arms, or involvement of respiratory muscles. No cause or hereditary basis for the illness were discovered. The evidence to indicate that this syndrome is due to an abnormality of extrapyramidal function, and that it is another example of adult-onset focal dystonia akin to spasmodic torticollis and dystonic writer's cramp, is discussed.  (+info)

Electromyographic activity from human laryngeal, pharyngeal, and submental muscles during swallowing. (2/293)

The durations and temporal relationships of electromyographic activity from the submental complex, superior pharyngeal constrictor, cricopharyngeus, thyroarytenoid, and interarytenoid muscles were examined during swallowing of saliva and of 5- and 10-ml water boluses. Bipolar, hooked-wire electrodes were inserted into all muscles except for the submental complex, which was studied with bipolar surface electrodes. Eight healthy, normal, subjects produced five swallows of each of three bolus volumes for a total of 120 swallows. The total duration of electromyographic activity during the pharyngeal stage of the swallow did not alter with bolus condition; however, specific muscles did show a volume-dependent change in electromyograph duration and time of firing. Submental muscle activity was longest for saliva swallows. The interarytenoid muscle showed a significant difference in duration between the saliva and 10-ml water bolus. Finally, the interval between the onset of laryngeal muscle activity (thyroarytenoid, interarytenoid) and of pharyngeal muscle firing patterns (superior pharyngeal constrictor onset, cricopharyngeus offset) decreased as bolus volume increased. The pattern of muscle activity associated with the swallow showed a high level of intrasubject agreement; the presence of somewhat different patterns among subjects indicated a degree of population variance.  (+info)

MRI examination of the masticatory muscles in the gray wolf (Canis lupus), with special reference to the M. temporalis. (3/293)

We examined the head of the gray wolf (Canis lupus) using MRI methods. Although the arising surface of the M. temporalis was not so enlarged in the frontal bone, the small frontal bone did not disturb the M. temporalis from occupying the lateral space of the frontal area in the gray wolf as in the domesticated dog. In the gray wolf, it is suggested that the M. temporalis may not be well-developed in terms of size of arising area, but in the thickness of running bundles. We suggest that the dog has changed the three-dimensional plan of the M. temporalis during the domestication and that the M. temporalis has developed a large arising surface in the frontal bone and lost the thickness of belly in the frontal area in accordance with the enlargement of the frontal bone and the increase in brain size.  (+info)

Behavior of jaw muscle spindle afferents during cortically induced rhythmic jaw movements in the anesthetized rabbit. (4/293)

The regulation by muscle spindles of jaw-closing muscle activity during mastication was evaluated in anesthetized rabbits. Simultaneous records were made of the discharges of muscle spindle units in the mesencephalic trigeminal nucleus, masseter and digastric muscle activity (electromyogram [EMG]), and jaw-movement parameters during cortically induced rhythmic jaw movements. One of three test strips of polyurethane foam, each of a different hardness, was inserted between the opposing molars during the jaw movements. The induced rhythmic jaw movements were crescent shaped and were divided into three phases: jaw-opening, jaw-closing, and power. The firing rate of muscle spindle units during each phase increased after strip application, with a tendency for the spindle discharge to be continuous throughout the entire chewing cycle. However, although the firing rate did not change during the jaw-opening and jaw-closing phases when the strip hardness was altered, the firing rate during the power phase increased in a hardness-dependent manner. In addition, the integrated EMG activity, the duration of the masseteric bursts, and the minimum gape increased with strip hardness. Spindle discharge during the power phase correlated with jaw-closing muscle activity, implying that the change in jaw-closing muscle activity associated with strip hardness was caused by increased spindle discharge produced through insertion of a test strip. The increased firing rate during the other two phases may be involved in a long-latency spindle feedback. This could contribute to matching the spatiotemporal pattern of the central pattern generator to that of the moving jaw.  (+info)

Craniofacial pain and motor function: pathogenesis, clinical correlates, and implications. (5/293)

Many structural, behavioral, and pharmacological interventions imply that favorable treatment effects in musculoskeletal pain states are mediated through the correction of muscle function. The common theme of these interventions is captured in the popular idea that structural or psychological factors cause muscle hyperactivity, muscle overwork, muscle fatigue, and ultimately pain. Although symptoms and signs of motor dysfunction can sometimes be explained by changes in structure, there is strong evidence that they can also be caused by pain. This new understanding has resulted in a better appreciation of the pathogenesis of symptoms and signs of the musculoskeletal pain conditions, including the sequence of events that leads to the development of motor dysfunction. With the improved understanding of the relationship between pain and motor function, including the inappropriateness of many clinical assumptions, a new literature emerges that opens the door to exciting therapeutic opportunities. Novel treatments are expected to have a profound impact on the care of musculoskeletal pain and its effect on motor function in the not-too-distant future.  (+info)

Masticator space abnormalities associated with mandibular osteoradionecrosis: MR and CT findings in five patients. (6/293)

BACKGROUND AND PURPOSE: Imaging of patients with a clinical diagnosis of mandibular osteoradionecrosis (ORN) is often performed to support that clinical suspicion, evaluate the extent of the disease, or exclude coexistent tumor recurrence. The purpose of our study was to describe the clinical, MR imaging, and CT features of five patients with mandibular ORN associated with prominent soft-tissue abnormality in the adjacent masticator muscles. METHODS: The MR and CT examinations of five patients with mandibular ORN associated with soft-tissue abnormalities in the adjacent masticator muscles were reviewed. All patients had received external beam radiotherapy for primary head and neck malignancies, with a total radiation dose range of 60 Gy to 69 Gy in 30 to 38 fractions. RESULTS: CT revealed the typical osseous findings of cortical disruption, trabecular disorganization, and fragmentation in all five patients. Abnormal diffuse enhancement of the adjacent masseter and pterygoid muscles was noted in all patients. Four patients had prominent mass-like thickening of these muscles adjacent to the osseous abnormality. Of the three patients who underwent MR imaging, all showed homogeneous abnormal T1 hypointensity, T2 hyperintensity, and intense enhancement of the bone marrow in the involved mandible. The masticator muscles adjacent to the osseous abnormality also showed abnormal T2 hyperintensity and intense diffuse enhancement on MR images. CONCLUSION: Mandibular ORN can be associated with prominent soft-tissue thickening and enhancement in the adjacent musculature. These changes can appear mass-like and are not related to tumor recurrence or metastatic disease.  (+info)

Adaptation of the muscles of mastication to the flat skull feature in the polar bear (Ursus maritimus). (7/293)

The muscles of mastication of the polar bear (Ursus maritimus) and those of the brown bear (U. arctos) were examined by anatomical approach. In addition, the examination of the skull was carried out in the polar bear, brown bear and giant panda (Ailuropoda melanoleuca). In the polar bear, the rostro-ventral part of the superficial layer of the M. masseter possessed the abundant fleshy portion folded in the rostral and lateral directions like an accordion. Moreover, the rostro-medial area of the superficial layer became hollow in the nuchal direction when the mouth was closed. The M. temporalis of the polar bear covered up the anterior border of the coronoid process of the mandible and occupied the almost entire area of the cranial surface. The M. pterygoideus medialis of the polar bear was inserted on the ventral border of the mandible and on the ventral part of the temporal bone more widely than that of the brown bear. As results of our measurements of the mandible, an effect of the leverage in the polar bear was the smallest in three species. In the polar bear, the skull was flat, and the space between zygomatic arch and ventral border of the mandible, occupied by the M. masseter was the narrowest. It is suggested that the muscles of mastication of the polar bear is adapted to the flat skull feature for supplementing the functions.  (+info)

Craniomandibular status and function in patients with habitual snoring and obstructive sleep apnoea after nocturnal treatment with a mandibular advancement splint: a 2-year follow-up. (8/293)

The aim of the investigation was to evaluate the status and function of the temporomandibular joint (TMJ) and masticatory system in patients with habitual snoring and obstructive apnoea after 2 years nocturnal treatment with a mandibular advancement splint. Thirty-two patients participated in the study, ranging from 43.0 to 79.8 years of age (mean 54.4 years, SD 8.78) at the start of treatment. All patients had been referred from the ENT department for treatment with a mandibular advancement splint. The acrylic splint advanced the mandible 50-70 per cent of maximal protrusion, opened 5 mm vertically, and was used 6-8 hours per night and 5-7 nights per week. Overjet, overbite, and molar relationship were measured on dental casts. The patients were asked to answer a questionnaire concerning symptoms of craniomandibular dysfunction (CMD). They were also clinically examined in a standardized manner, including registration of range of mandibular movements, TMJ sounds, pain on movement, and palpatory tenderness of the TMJ and the masticatory muscles. None of the patients showed more than five symptoms of dysfunction either at the start of or after 2 years of treatment. A decrease in the frequency of headache was found for nine of those 18 patients that reported headache (P = 0.004). A minor, but significant decrease in overjet and overbite was found and the molar relationship was also changed. It was concluded that 2 years' treatment with a mandibular advancement splint had no adverse effects on the craniomandibular status and function, but the observed occlusal changes requires further evaluation.  (+info)

Masticatory muscles are closely involved in mastication, pronunciation, and swallowing, and it is therefore important to study the specific functions and dynamics of the mandibular and masticatory muscles. However, the shortness of muscle fibers and the diversity of movement directions make it difficult to study and simplify the dynamics of mastication. The purpose of this study was to use 3-dimensional (3D) simulation to observe the functions and movements of each of the masticatory muscles and the mandible while chewing. To simulate the masticatory movement, computed tomographic images were taken from a single Korean volunteer (30-year-old man), and skull image data were reconstructed in 3D (Mimics; Materialise, Leuven, Belgium). The 3D-reconstructed masticatory muscles were then attached to the 3D skull model. The masticatory movements were animated using Maya (Autodesk, San Rafael, CA) based on the mandibular motion path. During unilateral chewing, the mandible was found to move laterally toward the
TY - JOUR. T1 - Hemodynamic changes at various contraction levels in human masticatory muscles(共著). AU - Kuboki, Takuo. PY - 1996. Y1 - 1996. M3 - Article. VL - 75. SP - 216. EP - 216. JO - Journal of Dental Research. JF - Journal of Dental Research. IS - SI. ER - ...
Masticatory muscle myositis (MMM) is an inflammatory disease in dogs affecting the muscles of mastication (chewing). It is also known as atrophic myositis or eosinophilic myositis. MMM is the most common inflammatory myopathy in dogs. The disease mainly affects large breed dogs. German Shepherd Dogs and Cavalier King Charles Spaniels may be predisposed. There is a similar disease of the eye muscles found in Golden Retrievers. Symptoms of acute MMM include swelling of the jaw muscles, drooling, and pain on opening the mouth. Ophthalmic signs may include third eyelid protrusion, red eyes, and exophthalmos (protruding eyeballs). In chronic MMM there is atrophy of the jaw muscles, and scarring of the masticatory muscles due to fibrosis may result in inability to open the mouth (trismus). The affected muscles include the temporalis, masseter, and pterygoid muscles. The disease is usually bilateral. MMM is caused by the presence of 2M fibers in the muscles of the jaw. 2M fibers are not found elsewhere ...
Objective: The aim of this study was to evaluate whether vertical facial patterns influence maximal occlusal force (MOF), masticatory muscle electromyographic (EMG) activity, and medial mandibular flexure (MMF). Material and Methods: Seventy-eight dentate subjects were divided into 3 groups by Rickettss analysis: brachyfacial, nnesofacial and dolychofacial. Maximum occlusal force in the molar region was bilaterally measured with a force transducer. The electromyographic activities of the masseter and anterior temporal muscles were recorded during maximal voluntary clenching. Medial mandibular flexure was calculated by subtracting the intermolar distance of maximum opening or protrusion from the distance in the rest position. The data were analyzed using ANOVA followed by Tukeys HSD test. The significance level was set at 5%. Results: Data on maximum occlusal force showed that shorter faces had higher occlusal forces (P,0.0001). Brachyfacial subjects presented higher levels of masseter ...
An article in Cephalgia should be of great interest to Chicago Patients suffering from headaches or migraines. The study showed that over 80% of all patients experiencing headaches also had masticatory muscle pain, or pain in the jaw muscles. This is critical information because referred muscle pain is a primary cause of all headaches It is the primary source of pain in tension headache and chronic daily headaches but is also implicated as a trigger or exacerbating factor in all headaches. Learn more at www.thinkbetterlife.com. Headches are a Trigeminal Nerve Disorder and the largest input to the trigeminal nervous system are the jaws, the jaw muscles, the jaw joints, the teeth and the periodontal ligaments. The utilization of medications can be a godsend to patients suffering headaches but the single best treatment of headaches may be prevention. Neuromuscular Dentistry often referred to as physiologic dentistry is specifically designed to reduce nociception or bad input to the trigeminal ...
On the basis of well-founded clinical evaluations and taking into account special methodological recommendations, surface electromyography (EMG) enables the acquisition of valid and reliable quantitative data on the functional condition of the masticatory muscles as a euromuscular functional analysis. On the basis of a current review of the literature, surface EMG appears to be able to deliver additional diagnostic and therapy-relevant information. Meaningful EMG data can be gained regarding resting activity, maximum muscle activation, frequency spectrum under various loading conditions, as well as bilateral symmetry of the contraction behavior of the jaw muscles. With these parameters completed by kinematic information on movements of the mandible it appears to be possible under clinical conditions to assess a) the neuromuscular chewing performance after prosthetic reconstructions, b) to record the influence of pain on the neuromuscular system, and c) to document the individual efffect of ...
If youve seen your dog in pain and not eating, its probable that they may have masticatory muscle myositis. Learn how to treat myositis, its symptoms...
Dolichofacial subjects presents poorer mechanical advantage, less efficiency in masticatory muscles during mastication and in generating bite force, smaller occlusal contact area and masticatory capacity when compared to brachyfacial individuals.. Wide, bilateral chewing cycles were related to better masticatory performance, however, unilateral chewing was reported to be very common in population, and it has been associated to lateral asymmetry on bite force and occlusal contact area.. It has been reported that dolichofacial subjects need greater muscular effort during mastication when compared to meso and brachyfacial subjects. This may cause functional overloading of weaker masticatory muscles, and may lead to functional asymmetries. ...
Principal Investigator:ICHIDA Toshimichi,山田 建二郎, Project Period (FY):1997 - 1998, Research Category:Grant-in-Aid for Scientific Research (C), Section:一般, Research Field:矯正・小児・社会系歯学
TY - JOUR. T1 - Masticatory ability assessments and related factors. AU - Marito, Pinta. AU - Pratama, Savedra. AU - Utomo, Hendro Priyo Dwi. AU - Koesmaningati, Henni. AU - Soetanto, Maria Francisca Lindawati. PY - 2018/1/1. Y1 - 2018/1/1. N2 - One of the most important aspects of denture treatment is to restore masticatory function to improve food intake. Masticatory ability assessments are done either objectively or subjectively. There are various factors that affect the masticatory ability of denture wearers. The aim of this study was to analyze the relationship between subjective and objective assessments of masticatory ability and the factors that can possibly affect this ability, including the residual ridge heights, age, gender, and denture type. A cross-sectional study of 34 denture wearers was carried out. All the dentures were fabricated in the Dental Teaching Hospital Faculty of Dentistry, Universitas Indonesia. The data collected were as follows: sociodemographic data, denture type, ...
Thirty TMD cases and 10 controls were included in the study. All participants were recruited from the School of Dentistry, University of Greifswald. All subjects gave their written consent to participate in the study. They then completed a TMD history questionnaire and underwent a clinical examination. The examination included palpation of the masticatory muscles and the TMJs, range of mandibular motion measurements, and assessment of joint noises. The TMD cases were required to have a diagnoses of myofascial pain and/or arthralgia. Controls had to be free of pain symptoms in their masticatory muscles and TMJs. Body posture was measured during five minutes of walking using an ultrasound-distance measuring device (sonoSens® Monitor) with small sensors placed on the skin that continually record changes in the distance between them. A static posture evaluation was performed with a contactless, and radiation-free static measurement of the back surface and spine using a 3D measurement system ...
First, an x-ray would be taken to figure out shape of maxilla and mandible bone, also the nerve location. After the x-ray, an incision will be performed inside the mouth and a removal of the proportional mandibular angle is performed, to prevent occurence of secondary angle, which is removing angle along the jaw line, effective for downsizing the entire mandible, for both frontal and profile. For some necessary cases, a cortical fracture (a surgical method of removing the outer layer of the jaw bone) is performed. The jaw bone is formed in three layers. For the case with excessively developed masticatory muscle, the masticatory muscle removal procedure also has to be performed at the same time. And for the cases with excessive fat on the face, of course the removal of buccal fat has to be performed. ...
Dr. Carol Osborne: I see in one discussion that you recommended Vitamin E, Selenium,Carnitine for MMM....my Shepherd is in the early stages of it and the head is sinking in as well as her eye...wish n...
Principal Investigator:FUJII Hiroyuki, Project Period (FY):1995 - 1996, Research Category:Grant-in-Aid for Scientific Research (B), Section:一般, Research Field:補綴理工系歯学
Mice are arguably the dominant model organisms for studies investigating the effect of genetic traits on the pathways to mammalian skull and teeth development, thus being integral in exploring craniofacial and dental evolution. The aim of this study is to analyse the functional significance of masticatory loads on the mouse mandible and identify critical stress accumulations that could trigger phenotypic and/or growth alterations in mandible-related structures. To achieve this, a 3D model of mouse skulls was reconstructed based on Micro Computed Tomography measurements. Upon segmenting the main hard tissue components of the mandible such as incisors, molars and alveolar bone, boundary conditions were assigned on the basis of the masticatory muscle architecture. The model was subjected to four loading scenarios simulating different feeding ecologies according to the hard or soft type of food and chewing or gnawing biting movement. Chewing and gnawing resulted in varying loading patterns, with biting type
Looking for digastric? Find out information about digastric. Of a muscle, having a fleshy part at each end and a tendinous part in the middle Explanation of digastric
Despite great interest and decades of research, the musculoskeletal relationships of the masticatory system in primates are still not fully understood. However, without a clear understanding of the interplay between muscles and bones it remains difficult to understand the functional significance of morphological traits of the skeleton. Here, we aim to study the impacts of the masticatory muscles on the shape of the cranium and the mandible as well as their co-variation in strepsirrhine primates. To do so, we use 3D geometric morphometric approaches to assess the shape of each bone of the skull of 20 species for which muscle data are available in the literature ...
The masticatory muscles are those that move mandible; there are principal and accessory muscles and they are classified into elevators and depressors. The p
Abstract: The relationship between cranial morphology and diet has long been investigated in bats. Bats of the genus Myotis include insectivorous, facultatively piscivorous, and piscivorous species. We tested the hypothesis that facultatively piscivorous (five Myotis species) and piscivorous species (M. vivesi) present cranial morphological and functional changes with respect to insectivorous taxa (16 Myotis species). Cranial shapes in skull and mandible modules were described with four geometric landmark configurations in these dietary groups. Gape capacity was measured with the stretch factors for temporal and masseter muscles. Geometric configurations from two skull and two mandible shapes were analyzed to detect differences in cranial morphology in relation to diet. Differences in cranial morphology were found between piscivorous and insectivorous species involving the mandibular process where masticatory muscles are attached. Linear regression analysis of Procrustes distances and gape ...
We got some unsettling news on Friday about Jed. Even though we dont have a blog, Jed sure could use some POTP right now. Hes been having a string of health problems for some time, and we just got a diagnosis that ties them all together. Jed has an autoimmune disease that is attacking different parts of his body. Right now, the biggest problems are acute IBD [inflamed intestines, which keeps him from being able to extract all the nutrition from his food - and makes him feel pretty bad] and eosinophalic masticatory muscle myositis, which is causing his head and jaw muscles to atrophy. While we work to figure out the best combination of medications, holistic supplements and diet to hopefully slow down the progress of this disease, we could use all the help we can get. Weve seen the POTP at work to help others, and we figure it might help Jed. Would you please use your blog to ask for the POTP for Jed? ...
Methods and apparatus fit a set of upper and lower teeth in a masticatory system by generating a computer representation of the masticatory system and computing an occlusion based on interactions in the computer representation of the masticatory system.
Methods and apparatus fit a set of upper and lower teeth in a masticatory system by generating a computer representation (300) of the masticatory system and computing an occlusion (306) based on interactions in the computer representation of the masticatory system.
You notice some pain in your jaw when chewing, which progressively worsens over several weeks. Occasionally you feel a clicking or catching in your jaw when opening and closing your mouth. Eventually you are unable to fully open your mouth and experience pain even when you speak. If you have never experienced this, count yourself very lucky. If you have, you are already familiar with the relatively common condition known as TMD.. TMD, short for temperomandibular disorder, is estimated to affect as much as 40% of the population at some point in their lifetimes, and is especially prevalent in the young. Initial diagnosis is typically made through a visit to the dentist, and the eventual treatment multidisciplinary with various management techniques. One of the lesser known treatment techniques, but something that is gaining in popularity, is soft-tissue therapy of the masticatory muscles the muscles used to move the jaw.. As a sports chiropractor using manual soft-tissue therapy on a daily basis, ...
You notice some pain in your jaw when chewing, which progressively worsens over several weeks. Occasionally you feel a clicking or catching in your jaw when opening and closing your mouth. Eventually you are unable to fully open your mouth and experience pain even when you speak. If you have never experienced this, count yourself very lucky. If you have, you are already familiar with the relatively common condition known as TMD.. TMD, short for temperomandibular disorder, is estimated to affect as much as 40% of the population at some point in their lifetimes, and is especially prevalent in the young. Initial diagnosis is typically made through a visit to the dentist, and the eventual treatment multidisciplinary with various management techniques. One of the lesser known treatment techniques, but something that is gaining in popularity, is soft-tissue therapy of the masticatory muscles the muscles used to move the jaw.. As a sports chiropractor using manual soft-tissue therapy on a daily basis, ...
INTRODUCTION: The DCM include different clinical conditions, with different etiology, which require different treatments, but are linked by common clinical signs and symptoms: Masticatory muscle pain in the preauricular region, TMJ Limitation and / or alteration of normal function mandible Articular noises. Over the years there have been numerous proposals for classification dcm. the classification most commonly used today is that the RDC. This classification as well as a tab on the symptoms and signs provides guidance on the validity of the diagnostic tools available. The same DRC excludes from the list of valid diagnostic tools with EMG. AIM: The aim of this study is to determine whether use of electromyography in combination with transcranial electrical stimulation can be effective in the diagnosis of DCM. MATERIALS AND METHODS: In our study we subjected 60 patients to electromyographic examination during transcranial electrical stimulation. RESULTS: The results we can establish that ...
This research addresses modeling the kinematic and dynamic response of the human jaw system, from an analytical, virtual and experimental viewpoint. Kinematic parameter variation laws have been...
Were still waiting on Rosies lab results, but Im glad I chose to pre-emptively treat her for masticatory muscle myositis: the damage has already been done. Rosie is on a pretty aggressive regime of prednisone and while her symptoms have been improved, its obvious to me that the auto-immune disease has done serious harm to […] ...
These products are made from lean cuts of meat or from fat isolated meat. From best-selected raw materials for the appropriate nutrition / 100% natural / valuable source of protein / digestible / Gluten free / gently dried / without preservatives. DeliBest Light snacks providing employment and chewing pleasure. The masticatory muscles and the dentition are trained. They are used for dental care and provide an ideal supplement to daily feeding.. ...
(2016) Glass, Connor. PLoS ONE. Down syndrome is frequently associated with complex difficulties in oromotor development, feeding, and swallowing. However, the muscle phenotypes underlying these deficits are unclear. We tested the hypotheses that the Ts65Dn mouse model of DS has significantly alt...
Definition of anterior belly of digastric muscle. Provided by Stedmans medical dictionary and Drugs.com. Includes medical terms and definitions.
medial pterygoid (Science: anatomy, muscle) origin, pterygoid fossa of sphenoid and tuberosity of maxilla; insertion, medial surface of mandible between angle and mylohyoid groove; action, elevates mandible closing jaw; nerve supply, nerve to medial pterygoid from mandibular division of trigeminal. ...
Two of the masticatory muscles: the internal, or medial, pterygoid muscle and external, or lateral, pterygoid muscle. Action of the former is closing the jaws and that of the latter is opening the jaws, protruding the mandible, and moving the mandible from side to side ...
Objectives: The digastric muscle is an important landmark in head and neck surgeries. Important neurovascular structures such as the spinal accessory and hypoglossal nerves (HNs), internal jugular vein (IJV) and internal carotid artery lie deep to the posterior belly of digastric (PBD); the study relating to it deserves special mention in anatomical literature. Therefore,the present study aims to describe the PBD in relation to the essential anatomical landmarks.Materials and Methods: This study was carried out using 10 cadavers preserved in 10% formalin. The midpoint of IJV in the neck was identified as the point between the angle of the mandible and midclavicular point. The anatomical landmarks considered for measuring the parameters were tip of the mastoid process (TMP), loop of HN, midpoint of IJV, bifurcation of common carotid artery (CCA) and the midpoint of PBD. Various parameters were measured using the digital calipers.Results: The length of PBD was 3.77 ± 1.08 cm on right and 3.15 ± ...
Temporomandibular disorders (TMDs) comprise a number of clinical conditions characterized by changes in masticatory muscles, temporomandibular joints (TMJ) and associated structures. According to researches in the U.S. and Europe, chronic orofacial pain encompasses 40 % of all chronic pain conditions, of which 10-15 % is related to the TMD. Pain and sensitivity of masticatory muscles and TMJ are most prominent symptoms of TMD. Although the etiopathogenesis of TMD has not been fully elucidated, in patients with TMD were observed changes in the processing of painful stimuli, indicating the importance of ion channels in the development of craniofacial painful conditions. Ion channels seam to regulate neuronal excitability. Since sensory inputs from craniofacial region are transmitted to higher neural centers responsible for pain sensations through trigeminal ganglion (TRG) neurons, changes in expression of various ion channels in TRG neurons might be causative in development of TMD ...
Environmental remodelling of the craniofacial musculature is obligatory for successful outcomes following interventions such as functional appliance therapy or orthognathic surgery. Genetically driven remodelling of the craniofacial musculature is also seen in individuals with altered facial form. The processes that are involved in the remodelling of intramuscular connective tissue need to be activated in such situations. Such processes require activity of matrix metalloproteinases (MMPs) and the tissue inhibitors of matrix metalloproteinases (TIMPs), which are responsible for extracellular matrix (ECM) turnover. The aim of this study was, therefore, to establish the expression of MMP-2 and MMP-9 and their inhibitors, TIMP-1 and TIMP-2, in the masseter muscle of humans with both normal and increased vertical facial form and to assess whether this expression had any value as a predictor of facial form.. Biopsies were taken from 20 subjects (10 with vertical facial deformity and 10 with normal ...
Tel/Fax: 0256/220 480, e-mail: [email protected] ABSTRACT. Introduction. Planass fundamental laws are based on the neuro-occlusal concept, which plays a major role in the development and evolution of the stomatognatic system. The alterations of the masticatory functions contribute to the modeling of the structures that form the stomatognatic system.. Methodology The purpose of the study was to assess the masticatory stereotype of a group of young people and to analyse the functional masticatory angles.. We have assessed the amplitude of the functional masticatory angles on a group of 20 students. The masticatory angles depend on the occlusal morphology (cusp size), age and masticatory movements.. Results Great alterations are present with patients with dento-maxillary anomalies, edentations, dental injuries and unilateral mastication.. Conclusion The data obtained allow us to improve the masticatory functions as part of a complex oral rehabilitation. The functional masticatory angles are ...
The organization of the emotion-related somatic motor behavior, including jaw movements, is governed _disibledevent=line-height:2;font-family:Verdana;>ion (RFp) of the medulla oblongata. The CeA also has an inhibitory influence on non-dopaminergic (probably GABAergic) neurons in the retrorubral field of the midbrain that send their axons to the RFp. Furthermore, the CeA and lateral hypothalamus including the PLH may also modulate Vm neurons via projections to the mesencephalic trigeminal nucleus which contains the cell bodies of primary afferent neurons conveying inputs from the masticatory muscle spindles or the periodontal ligament receptors to jaw closing motoneurons within the Vm. These pathways from the subcortical limbic structures to the trigeminal motor system in the lower brainstem underlie the regulation of emotional jaw movements.
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The present invention absorbs shocks in an emergency situation such as falling of an elevator car, and when the elevator user needs to be protected, the floor on which the elevator user stands is deformed to absorb the impact first, So that the shock is absorbed through the floor which is directly transmitted to the elevator user, thereby providing an elevator with enhanced safety function for safely protecting the elevator user while enhancing the impact absorbing effect It has its purpose. In addition, according to the present invention, the wall of the installation space for installing the shock absorber below the floor is formed in a corrugated shape so that the wall is absorbed by the impact applied to the elevator car through folding and deformation, The elevator is configured to further include a handle in the space to allow the elevator user to hold the elevator. Thus, it is possible to further reduce the amount of the shock that can be applied to the elevator user in addition to the
Variations are numerous. The posterior belly may arise partly or entirely from the styloid process, or be connected by a slip to the middle or inferior constrictor; the anterior belly may be double or extra slips from this belly may pass to the jaw or Mylohyoideus or decussate with a similar slip on opposite side; anterior belly may be absent and posterior belly inserted into the middle of the jaw or hyoid bone. The tendon may pass in front, more rarely behind the Stylohoideus. The Mentohyoideus muscle passes from the body of hyoid bone to chin. ...
INTRODUCTION. Temporomandibular disorders (TMD) are a sub-classification of musculoskeletal disorders and include a wide range of orofacial conditions with multiple etiologies that mask a great variety of subjective signs and symptoms. These can be referred isolated or combined from the temporomandibular joint (TMJ), the masticatory muscles, the cervical muscles and associated structures. TMD and its referred symptomatology in their acute-chronic condition can seriously affect quality of life. The causal relationship between heterotopic pain and the masticatory system is found in large numbers of adult patients as well as in the infant population. These symptoms appear similarly in adults as in children, (Youniss, 1991; Lipton et al., 1993; Skeppar & Nilner, 1993; McNeill, 1997) but the prevalence of TMD pain can range between 1.5 to 2 times higher in women than in men. (Solberg et al., 1979; Klausner, 1994; Dao & LeResche, 2000; Lund et al., 2001). TMD usually manifests itself as symptoms in ...
Looking for masseter? Find out information about masseter. The masticatory muscle, arising from the zygomatic arch and inserted into the lower jaw Explanation of masseter
Bear in mind that these muscles must also relax in order for the mouth to open. Since these two muscles are the largest muscles which close the jaw, when they become involved in masticatory myositis, the primary clinical sign is trouble in opening the jaws.. Masticatory myositis can be divided into an acute and chronic form. It must be remembered that one acute attack can lead immediately into the chronic form of the disease, although, more often than not, multiple, recurrent acute attacks are necessary. Symptoms of the acute form involve the the swollen, firm and painful temporalis and masseter muscles. The dogs head often appears swollen and larger than normal. The dog will be reluctant or unable to open his mouth. Opening the mouth more than 1 inch or so elicits an extremely painful response. This results in difficulty in eating and often the owner notices increased drooling as well. This swelling may even cause exophthalmia or the eyes to bug out. Usually a fever is present and the lymph ...
The trigger points within the muscle may cause pain that refers to the overlying skin. Usually the pain radiates to mouth, throat and ear. The pain is of diffused type, as compared to lateral pterygoid which occurs in precisely smaller area. Added problems such as difficulty in swallowing and restriction to jaw openings also occur. Massaging the area can help reduce pain, however, pain killers are the treatment of choice since this condition can go away with time.. ...
To convert the elevator car subcharts to atomic subcharts, a few steps are needed. These steps reflect the rules that govern the use of atomic subcharts. For a description of these rules, click here and here.. The approach taken below is to make a library atomic subchart out of the Elevator_A subchart and then use linked instances of this library instead of the elevator car subcharts.. Step 1. Export Elevator_Manager functions and data to make them visible to atomic subcharts. Because atomic subcharts cannot call functions defined in a container chart unless they are exported, we need to pull the functions in the Elevator_Manager which are called by Elevator_A and Elevator_B to the chart level: doing so will make these functions visible to the atomic subcharts.. To export the functions at the chart level, migrate all the functions used by the elevator car subcharts out of the Elevator_Manager chart and into the parent chart as shown below:. ...
When a TMJ TMD diagnosis and decision to treat is made, the first step in therapy is to relax the masticatory muscles, which are in a state of hyperactivity, fatigue or in spasm. This is done with TENS or Transcutaneous Electrical Neural Stimulation. This procedure uses a minute electrical current generated by a 9-volt battery. It relaxes the facial muscles.. Usually TENS is used for one hour, sometimes longer. Feeling a series of rhythmic taps on the cheeks, patients can read or nap during TENS therapy. It is like an electronic massage of the facial muscles. This is preferable to medication, which can also relax muscles throughout the body resulting in unwanted side effects. This procedure comfortably and effectively relaxes the facial and jaw muscles with minimal electrical stimulation.. Before and After TENS. Establishing the new occlusion (bite) position. Following the TENS procedure, the resting jaw position is recorded, as are changes in the resting activity of the muscles with EMG. The ...
Digastric Triangle also known as Submandibular Triangle is named due to it is position in the middle of the two bellies of the digastric muscle and inferior…
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The muscles of the head can be grouped into two categories: the muscles of mastication (masticatory muscles), which are derivatives of the first pharyngeal arch, and the muscles of facial expression (facial muscles), which are derivatives of the second pharyngeal arch.
Study Innervation of the Temporalis Muscle flashcards from Kelsey Thomas's Palmer College of Chiropractic-Davenport class online, or in Brainscape's iPhone or Android app. ✓ Learn faster with spaced repetition.
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and Dr Ernesto Blanco of the Institute of Physics, in Montevideo, report their findings in the journal Proceedings B of the Royal Society.. Larger than a bull, the newly-identified but now extinct species is the biggest member of the order Rodentia. By comparison it makes todays king of rodents, the 60-kilogram capybara, look like a pygmy shrew.. The skull of the extraordinary beast was found in a broken boulder on Kiyu Beach on the coast of Uruguays River Plate region, the researchers say.. Its skull measures a whopping 53 centimetres and has massive incisors several centimetres long.. Despite this fearsome look, the creature was not carnivorous and looked more hippo-like than rat-like.. Its small grinding teeth suggest it had only weak masticatory muscles for chewing food, and probably tucked into soft vegetation, fruit and squidgy aquatic plants in deltas, the researchers say.. Its food intake must have been vast, given its huge size.. Other denizens of this world of marsh and forest would ...
In a series of recent articles, we suggest that family dentists, military dentists and psychiatrists with expertise in posttraumatic stress disorder (especially in the Veterans Health Administration) are likely to see an increased number of patients with symptomatic jaw-clenching and early stages of tooth- grinding (Bracha et al., 2005). Returning warfighters and other returnees from military deployment may be especially at risk for high rates of clenching- induced masticatory muscle disorders at early stages of incisor grinding. The literature we have recently reviewed strongly supports the conclusion that clenching and grinding may primarily be a manifestation of experiencing extreme fear or severe chronic distress (respectively). We have recently reviewed the clinical and paleoanthropological literature and have noted that ancestral warfare and ancestral combat, in the early Paleolithic Environment of Evolutionary Adaptedness (EEA) may be a neglected factor explaining the conservation of the ...
Definition of nerve of pterygoid canal in the Legal Dictionary - by Free online English dictionary and encyclopedia. What is nerve of pterygoid canal? Meaning of nerve of pterygoid canal as a legal term. What does nerve of pterygoid canal mean in law?
Question - What could cause tingling,spasms all over the body and stiff neck,sore throat with jaw stiffness?, Ask a General & Family Physician
Encino, CA Oral Surgeon offers post operative instructions for improving jaw stiffness and soreness. Call our office for more information at 818-990-5500.
Subject: Space-tech Digest #41 Contents: Marc Ringuette Space Elevators Michel van Roozendaal Re: Space Elevators Marc Ringuette Re: Space Elevators Marc Ringuette Re: Space Elevators Michel van Roozendaal Re: Space Elevators Marc Ringuette Re: Space Elevators Christopher Neufeld Re: Space Elevators Hans Moravec Re: Space Elevators Marc Ringuette Re: Space Elevators Marc Ringuette Re: Space Elevators Christopher Neufeld Re: Space Elevators ------------------------------------------------------------ Date: Mon, 20 Nov 1989 11:53-EST From: [email protected] To: [email protected] Subject: Space Elevators Heres some mail Ive recently been exchanging with some folks about space elevators and tethers. Its pretty long (600-odd lines). But first, Ill explain for those of you who havent seen these ideas: Space elevator: Attach a cable to the earth, pay it out past the geosynchronous point, and attach a counterweight. It hangs there, and you can winch yourself into orbit up ...
What is the definition of elevator? What is the meaning of elevator? How do you use elevator in a sentence? What are synonyms for elevator?
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Elevator Action is a fun online Classic game that you can play here on Games HAHA. If you enjoyed this game and want to play similar fun games then make sure to play Elevator Action Returns, Elevator or Elevator Action EX or just go to the Classic games page. Elevator Action has been played multiple times and is another one of the many Classic /10 ...
Definition of Terminal Elevators in the Financial Dictionary - by Free online English dictionary and encyclopedia. What is Terminal Elevators? Meaning of Terminal Elevators as a finance term. What does Terminal Elevators mean in finance?
Belt - bucket elevator installation and maintenance manual 150-750 ... shaft center distances, will be provided for all elevators to compensate for elongation as wear occurs and to provide temporary slack for installation or maintenance...Safety, installation & service instructions for bucket elevators introduction: this manual contains instructions for the safety, installation, operation and maintenance of bucket elevators as manufactured by screw...
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Masseter muscle reduction in NYC is aimed to reduce the size of the muscle to create a narrower jaw. The procedure involves the use of Botox, which is injected into the masseters.
The dimensions of the Horizontal Stabilizer include the mounting Saddle and Elevator unless otherwise noted. The Elevator Quantity is the number of elevator segments. This is usually 1 or 2. i.e. 1 if the elevator is one piece, 2 if the elevator is split into a right and left segment. The Elevator Length is expressed as the length per elevator segment. The Elevator Area is expressed as the total of the area of all elevator segments. ...
I think its high time someone published the rules for using elevator buttons, especially the ones outside (that call for an elevator). I am sick and tired of the way these buttons are misused. So here goes: Rule #1: The two buttons available to call an elevator have an up arrow and a down arrow. These are meant to indicate whether you want to go up or down, not whether the elevator must come up or down. For example, if youre on Floor 3 and you want to go to Floor 7, you need to press the Up arrow button. Many people see that the elevator is on Floor 5 and press the Down arrow button. When I ask them why they pressed the Down arrow button when they wanted to go up, they say I want the elevator to come down. Well, the elevator will figure out where it has to go but you please just let it know where you want to go because the elevator has no way to figure that out. Corollary to Rule #1 : Never press both Up and Down arrows. It does not cause the elevator to come t ...
I think its high time someone published the rules for using elevator buttons, especially the ones outside (that call for an elevator). I am sick and tired of the way these buttons are misused. So here goes: Rule #1: The two buttons available to call an elevator have an up arrow and a down arrow. These are meant to indicate whether you want to go up or down, not whether the elevator must come up or down. For example, if youre on Floor 3 and you want to go to Floor 7, you need to press the Up arrow button. Many people see that the elevator is on Floor 5 and press the Down arrow button. When I ask them why they pressed the Down arrow button when they wanted to go up, they say I want the elevator to come down. Well, the elevator will figure out where it has to go but you please just let it know where you want to go because the elevator has no way to figure that out. Corollary to Rule #1 : Never press both Up and Down arrows. It does not cause the elevator to come t ...
Definition of Pars petrosa ossis temporalis with photos and pictures, translations, sample usage, and additional links for more information.
We have hope, says Brandi Helvey. Jacob was one of the lucky ones. He survived a scenario that - more often than not - has killed children from three years old to 12.. We had no idea that this could happen, when we bought this elevator, says Michael Helvey, president of a real estate company in Atlanta. And I can guarantee you that the people who own these things dont have a concept that a child could get into that space. There was no mention of child endangerment. Nobody all at explained to us the significance of what could happen. If their customers havent a clue, the companies that design and manufacture these types of elevators, used in residential setting and small apartment buildings, know all about it. Children have been getting entrapped between the hoistway (or swing) and elevator doors, crushed, injured and killed for decades, despite warnings that go back to the 1930s, industry standards that addressed the issue nearly six decades ago, and a low-cost, post-installation fix. The ...
As usual, when the elevator arrived, I step away from the door so that people could come out from the elevator... I was standing a bit far from the elevator door and this indon maid was standing beside me... When the elevator arrived, she quickly jumped into the elevator after the two person came out... even though i stood nearer to the elevator door... Then i made my way going into the elevator straight after the Indon Maid went in... i saw the Indon Maid pressed a button and i assumed she was pressing the open button... so I made my step into the elevator with confident... But all of the sudden the door slammed @ me, luckily door detector has overwritten the Indon Maid action... otherwise i would not be here to blog about this ... that stupid Indon Maid, she didnt press the other button (open the door) but kept pressing the button to force the door closed... WTF? I was so unhappy and gave her an angry stared since she forced the door closed instead quickly change to open the door... she ...
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Apparatus for making serial dilutions in longitudinal titration trays having equally spaced transverse rows of cups, providing an elevator vertically movable into upper and lower positions, a carriage for removably supporting and locating a tray thereon and being supported and guided on the elevator for horizontal movement lengthwise of a located tray, fixed oscillatory loops above the carriage and arranged for their alignment with the cups in any row in a located tray on movement of the carriage on the elevator in its lower position, and for their reach into the aligned cups on movement of the elevator into its upper position, and operating mechanism, including controls, performing in a presettable number of cycles in each of which the elevator is raised to its upper position, the loops are oscillated, the elevator is moved to its lower position, and the carriage is indexed to bring a next cup row in a tray thereon into alignment with the loops.
An exemplary magnetic coupling device (30) useful for coupling elevator doors includes a core (40) having an exterior surface. An active portion (48) of the surface is configured to direct a magnetic flux associated with the core in a desired direction for facilitating elevator door coupling. An interruption (80) in the exterior surface near the active portion (48) is configured to establish a relatively high magnetic saturation in the core in a vicinity of the interruption (80).
Faced with a blind wall behind the doors, no answer to the alarm or shouting and a locked hatch, he got desperate then depressed. He smoked the rest of his cigs, and worried about dehydration. Of course, with all the modern safety features like multiple hoist-ropes and speed brakes he wasnt going to plummet to his death. He was just stuck in a box barely big enough to lie down in. Rescue finally came 41 hours later, and no one knows why the jam happened.. After getting out, White never returned to another day of work. He filed lawsuits, settled for barely 6 figures, and lost his job, savings and apartment. Some would say the event ruined his life, to no fault of his own. He stepped in the elevator a man, and left on a trajectory towards shambles.. Eight different security guards failed to spot him on the camera. Wonder what would happen in a similar situation in the Burj Dubai with its 46 separate elevators: two being double-deckers that will go the whole 156 floors? Probably a quicker rescue, ...
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The symptoms will usually involve more than one of the various components of the masticatory system, muscles, nerves, tendons, ... Left medial and lateral pterygoid muscles Left temporalis muscle Left masseter muscle (red highlight) They can be thought of in ... The muscles of mastication are paired on each side and work together to produce the movements of the mandible. The main muscles ... Trovato F, Orlando B, Bosco M (2009). "Occlusal features and masticatory muscles activity. A review of electromyographic ...
Masticatory Muscle Myositis. In, Bojrab MJ, American College of Veterinary Surgeons (ACVS) Veterinary Orthopedic Society (VOS) ...
The left masseter muscle (red highlight), shown partially covered by superficial muscles such as the platysma muscle, the ... Finally, the muscle undergoes spasm with malignant hyperthermia as do other skeletal muscles, but this one is easily noted, ... The action of the muscle during bilateral contraction of the entire muscle is to elevate the mandible, raising the lower jaw. ... Wikimedia Commons has media related to Masseter muscles.. *^ Elsevier, Dorland's Illustrated Medical Dictionary, Elsevier.. .mw ...
"Bite Force Estimation and the Fiber Architecture of Felid Masticatory Muscles". The Anatomical Record: Advances in Integrative ... Phylogenetic relationships of the jaguar as derived through analysis of The jaguar is a compact and well-muscled animal. It is ...
It is the origin of several masticatory muscles in the skull. The jugal and lacrimal bones are the only two remaining from the ... The zygoma provides important functions as the origin of the masseter muscle and as a point of resistance for masticatory ... and not as a site of jaw muscle attachment. In extant reptiles, the jugal bone continues to form the orbit of the eye and ... and providing attachment sites for facial muscles. ...
This is accomplished by its masticatory muscles, which are relatively underdeveloped. Jaw depression creates an oral opening ... The long sternoglossus muscle, which is formed by the fusion of the sternohyoid and the hyoglossus, is directly anchored to the ... has exceptional muscle power, is a terrifying animal." Dalí depicted an anteater in the style of The Great Masturbator. It was ... pulling power-and the triceps muscle helps power the flexion of the thickened third digit of the front feet. The giant anteater ...
Takahashi, S; Kuribayashi, G; Ono, T; Ishiwata, Y; Kuroda, T (January 2005). "Modulation of masticatory muscle activity by ... Fatigue in the tongue muscles may contribute to incomplete food clearance (residue), prolonged time to complete a meal and ... Tongue exercise to increase the muscle tone is therefore an important part of the oral myology therapy of dysphagia. ... and oral myology therapy aiming at tongue muscles training is an important part of speech therapy. The use of intra-oral ...
They are proprioceptive fibers, conveying information regarding the location of the masticatory muscles. The central processes ... Proprioceptors (muscle spindle and Golgi tendon organs) provide information about joint position and muscle movement. Although ... the temporal muscle, and the medial and lateral pterygoids. The other four muscles are the tensor veli palatini, the mylohyoid ... Injury to a peripheral nerve can cause paralysis of muscles on one side of the jaw, with the jaw deviating towards the ...
"Intermuscular and intramuscular differences in myosin heavy chain composition of the human masticatory muscles". Journal of the ... Myosin-1, also known as 'striated muscle myosin heavy chain 1', is a protein that in humans is encoded by the MYH1 gene. This ... "Entrez Gene: MYH1 myosin, heavy chain 1, skeletal muscle, adult". Yoon SJ, Seiler SH, Kucherlapati R, Leinwand L (December 1992 ... most highly expressed in fast type IIX/D muscle fibres of vertebrates and encodes a protein found uniquely in striated muscle; ...
The symptoms will usually involve more than one of the various components of the masticatory system, muscles, nerves, tendons, ... Muscles of mastication[edit]. Main article: Muscles of mastication. The muscles of mastication are paired on each side and work ... Temporomandibular joints, muscles of mastication and malocclusions - Jaw joints, chewing muscles and bite abnormalities ... Trovato F, Orlando B, Bosco M (2009). "Occlusal features and masticatory muscles activity. A review of electromyographic ...
... multituberculates employed a backward chewing stroke which resulted in the masticatory muscles-the muscles which move the ... The masticatory muscles of multituberculates independently evolved features shared with rodents and small herbivorous ... The separation of the origin of this muscle into two parts and the rounded muscle scars left by them are unique among mammals ... Catopsbaatar had semicircular ridges on the side of the skull, to which the jaw muscles were attached. The mandible was strong ...
... masticatory muscles). These may include the thick muscle in the cheek that closes the jaw (masseter muscle) and the broad ... platysmal muscle). This muscle draws down the corner of the mouth and lower lip or other muscle groups. In some cases Meige's ... temporalis muscle). Some patients may also experience involuntary contractions of the wide muscle at the side of the neck ( ... The Greek word blepharon means "eyelid". Spasm means "uncontrolled muscle contraction". The term blepharospasm ['blef-a-ro-spaz ...
... and masticatory muscles. Emotional movement of these muscles is controlled by alternative pathways that run from the amygdala ... pharyngeal muscles, laryngeal muscles, brachial muscles, tongue muscles, and muscles of the mouth that aid in chewing. These ... and masticatory muscles. However, the reflexive and autonomic functions of these muscles groups are usually intact. Common ... and masticatory muscles, while automatic, involuntary functions of these four muscle groups remain. Automatic functions are ...
Masticatory muscle myositis (MMM) is an inflammatory disease in dogs affecting the muscles of the jaw. Signs include swelling ... In chronic MMM there is atrophy of the jaw muscles, and scarring of the masticatory muscles due to fibrosis may result in ... Signs include pain, weakness, and rear limb muscle atrophy. Coonhound paralysis is a type of polyradiculoneuritis seen in ... Dancing Dobermann disease is a type of myopathy that primarily affects the gastrocnemius muscle in Dobermanns. It usually ...
myopathy (muscle disease) myalgia (muscle pain) Masticatory muscle myositis (a disease in dogs) myositis v t e. ... Perimyositis is inflammation or swelling of tissues near the muscles. ...
Ingervall B, Bitsanis E (February 1987). "A pilot study of the effect of masticatory muscle training on facial growth in long- ... Muscle factors - the form and function of the muscles that surround the teeth. This could be impacted by habits such as finger ... Lack of masticatory stress during development can cause tooth overcrowding. Children who chewed a hard resinous gum for two ... Masticatory function: people with anterior open bites, large increased & reverse overjet and hypodontia will find it more ...
... masticatory muscles, skull shape and digging." Cells Tissues Organs 191.6 (2010): 510-522. citation needed "Mountain Beaver" in ... where no extreme specialization of the masseter muscle has evolved. In the protrogomorphous condition, the masseter muscle does ... Likewise, the medial masseter muscle attaches to the base of the zygomatic arch and does not extend to the region in front of ... The skull is protrogomorphous; it has no specialized attachments for the masseter muscles as seen in other rodents. It is ...
The symptoms will usually involve more than one of the various components of the masticatory system, muscles, nerves, tendons, ... Muscles of masticationEdit. Main article: Muscles of mastication. The muscles of mastication are paired on each side and work ... Trovato F, Orlando B, Bosco M (2009). "Occlusal features and masticatory muscles activity. A review of electromyographic ... Injections of local anesthetic, sometimes combined with steroids, into the muscles (e.g. the temoralis muscle or its tendon) ...
Both have a raised and dome-like anterior cranium, enlarged areas for the attachment of masticatory muscles, enlarged premolars ... Strong muscles are also required for bone crushing, and the temporalis attachment on the skull is enlarged by a strong sagittal ... To feed with this type of structure the fish can protrude its mouth ventrally to permit muscles to be seized by the jaws and ... The strong adductor muscles can be asynchronously activated. In these groups, teeth are hexagonal and are arranged in ...
There may be low tone of the muscles of the soft palate, pharynx, and the masticatory system. The palate may be arched ... Sometimes called smile surgery by the media, muscle transfers grafted from the thigh to the corners of the mouth can be ... This should be completed in most situations before the smile surgery where the gracilis muscle is grafted to the face.[citation ... Often, their upper lip is retracted due to muscle shrinkage. Occasionally, the cranial nerves V and VIII are affected. If ...
The heavier musculature of the jaws-those muscles operating the intensive masticatory process for chewing plant material- ... During evolution of the human lineage these muscles seem to have weakened with the loss of the myosin gene MYH16, a two base- ...
... pharyngeal and masticory muscles (facio-pharyngo-glosso-masticatory paresis), pyramidal signs, and seizures." These can result ... delayed development or weakened muscles as some of the noted effects. Significant technological advances have been made within ... mutations are known to contribute to polymicrogyria either with or without congenital fibrosis or the external ocular muscles, ...
Sleep bruxism is mainly characterized by "rhythmic masticatory muscle activity" (RMMA) at a frequency of about once per second ... The pain in the muscles of mastication caused by bruxism can be likened to muscle pain after exercise. The pain may be felt ... This typically involves the masseter muscle and the anterior portion of the temporalis (the large outer muscles that clench), ... Headaches, particularly pain in the temples, caused by muscle pain associated with the temporalis muscle. Bruxism is usually ...
... with a large attachment surface for the masseter muscle and a sagittal crest for attachment of the temporal muscle, indicates a ... heavy masticatory apparatus. Its teeth were small relative to body size. The lack of a diastema (gap) between the second ...
Turnbull concluded that in Thylacosmilus these masticatory muscles was not involved at all in the use of the sabertooth canines ... The analysis made by William Turnbull published in 1976 and 1978 included a reconstruction of the masticatory muscles of ... In particular, the features of the humerus suggest a great development of the pectoral and deltoid muscles, not only required ... Turnbull, W. D. (1976). "Restoration of masticatory musculature of Thylacosmilus". In Churcher, C. S. (ed.). Athlon, Essays in ...
... their masticatory muscles, and dentition.Phylogenetic analysis of tissue samples of these taxa and their ability to hybridise ...
... masticatory muscles and adjacent structures and organs. This Department also includes: Eastman Clinical Investigation Centre ...
... when used with the deep mandible likely allowed strong exertion by the masticatory muscles. The fossils of this sloth were ...
They are the superior longitudinal muscle, the inferior longitudinal muscle, the vertical muscle, and the transverse muscle. ... The upper surface of the tongue is covered in masticatory mucosa a type of oral mucosa which is of keratinized stratified ... MusclesEdit. The eight muscles of the human tongue are classified as either intrinsic or extrinsic. The four intrinsic muscles ... The four intrinsic muscles alter the shape of the tongue and are not attached to bone. The four paired extrinsic muscles change ...
When muscles of mastication are within the field of radiation, it leads to fibrosis and result in decreased mouth opening. ... Peritonsillar abscess Tetanus Meningitis Brain abscess Parotid abscess The hallmark of a masticatory space infection is trismus ... Dental trismus results from some sort of insult to the muscles of mastication, such as opening the jaw for a period of time or ... Inflammation of muscles of mastication. It is a frequent sequel to surgical removal of mandibular third molars (lower wisdom ...
Functional appliances are a range of fixed and removable appliances that cause their effect by influencing the muscle groups ... whilst also improving speech and masticatory function. However, the supporting evidence is equivocal.[1][2]. It may be assumed ...
The medial pterygoid (or internal pterygoid muscle), is a thick, quadrilateral muscle of mastication. ... The bulk of the muscle arises as a deep head from just above the medial surface of the lateral pterygoid plate. ... The insertion joins the masseter muscle to form a common tendinous sling which allows the medial pterygoid and masseter to be ... Unlike the lateral pterygoid and all other muscles of mastication which are innervated by the anterior division of the ...
Ingervall, Bengt; Bitsanis, E (1987). "A pilot study of the effect of masticatory muscle training on facial growth in long-face ... Graber TM., T (1963). "The "Three m's": Muscles, Malformation and Malocclusion". Am. J. Orthod. 49 (6): 418-450. doi:10.1016/ ... A small underdeveloped jaw, caused by lack of masticatory stress during childhood, can cause tooth overcrowding.[8][9] Ill- ... supporting the theory that masticatory stress during childhood affects jaw development. Several studies have shown this effect ...
The zygomaticus major is a muscle of the human body. It is a muscle of facial expression which draws the angle of the mouth ... "Zygomaticus Major Muscle Function, Origin & Anatomy".. *^ Pessa, Joel E.; Zadoo, Vikram P.; Garza, Peter A.; Adrian, Erle K.; ... Muscles of the head, face, and neck. Zygomaticus major shown in red. ... Muscles of the head, face, and neck. Zygomaticus major shown in red. ...
Some of these may have been attachment points for powerful jaw muscles,[12][13] but in some species the growths were larger in ... Joeckel, R. M. (1990). "A Functional Interpretation of the Masticatory System and Paleoecology of Entelodonts". Paleobiology. ...
Robinson (1913)[3] suggests that the demand to resist masticatory stresses triggered bone thickening in the mental region of ... This fat pad is occasionally surgically removed and the corresponding muscles under the jaw shortened.[23] ... Moreover, Daegling (1993)[4] explains the chin as a functional adaptation to resist masticatory stress that causes vertical ... or muscle, during the embryonal and fetal development. For other individuals, it can develop over time, often because one half ...
... the nearby masticatory muscles are supplied by the mandibular nerve, a branch of the trigeminal nerve (cranial nerve V). ... The facial muscles are a group of striated skeletal muscles supplied by the facial nerve (cranial nerve VII) that, among other ... The stylohyoid muscle, stapedius and posterior belly of the digastric muscle are also supplied by the facial nerve, but are not ... The facial muscles are just under the skin (subcutaneous) muscles that control facial expression. They generally originate from ...
... with abnormal development being directly tied to decreased muscle tone of oral and facial muscles. This hypotonia of ... Lieberman, D. E., Krovitz, G. E., Yates, F. W., Devlin, M., & Claire, M. S. (2004). Effects of food processing on masticatory ... Pinhasi, R., Eshed, V., & Shaw, P. (2008). Evolutionary changes in the masticatory complex following the transition to farming ... Dietary consistency and craniofacial development related to masticatory function in minipigs. Journal of craniofacial genetics ...
As the mentalis muscle contracts, it can cause displacement of the prosthesis in a posterior and upward fashion Masseter muscle ... Restoration of aesthetics and masticatory function Allow for time of adaptation as the patient gets used to their new dentures ... These are: Mentalis muscle - the effects of this muscle are more evident when there has been considerable alveolar bone ... Occlusal surface Polished surface Impression surface The peri-oral muscles (muscles of the cheeks and lips) can cause ...
The head was unusually large, and the high spines on the vertebrae above the shoulders supported strong neck muscles and ... JSTOR Joeckel, R. M. "A Functional Interpretation of the Masticatory System and Paleoecology of Entelodonts" Paleobiology 16, ... The largest living peccary species, Catagonus wagneri, eats mostly cacti.) Adult Archeotherium had huge temporalis muscles, but ...
The jaw muscles were enlarged, and the jaw joint was set below the level of the teeth. This deep position of the jaw joint ... Sereno, P. C. (2012). "Taxonomy, morphology, masticatory function and phylogeny of heterodontosaurid dinosaurs". ZooKeys (226 ... The medial epicondyle of the humerus was enlarged, providing attachment sites for strong flexor muscles of the forearm. ...
Some of these may have been attachment points for powerful jaw muscles, but in some species the growths were larger in some ... http://www.douglasfossils.com/multi_kill.html Joeckel, R. M. (1990). "A Functional Interpretation of the Masticatory System and ...
The muscles of mastication or masticatory muscles are: a) masseter, b) temporalis, c) medial pterygoid, d) superior belly of ... Weber worked out that 1 cm2 cross section surface area of any masticatory muscle can produce approximately 10 kg force. The ... Morill worked more deeply on the relationship between masticatory muscles and pain signals from the periodontal tissue in ... The masticatory force initially was measured by Dr. Bleck. Bleck used a gnathodynamometer and also found out the close relation ...
2005). "Ecomorphological analysis of the masticatory apparatus in the seed-eating bats, genus Chiroderma (Chiroptera: ... and a strong zygoma that supports powerful chewing muscles. These adaptations are believed to be related to its diet, allowing ...
Karl T. Bates; Peter L. Falkingham (2018). "The importance of muscle architecture in biomechanical reconstructions of extinct ... a unique adaptation in an Early Jurassic ornithischian improving masticatory efficiency". The Science of Nature. 105 (7-8): ... the effect of postural change on muscle leverage". The Anatomical Record. 301 (12): 2145-2163. doi:10.1002/ar.23950. PMID ...
Since triggering may be caused by movements of the tongue or facial muscles, TN must be differentiated from masticatory pain ... it is also responsible for the motor function of the muscles of mastication, the muscles involved in chewing but not facial ... Masticatory pain will not be arrested by a conventional mandibular local anesthetic block. One quick test a dentist might ... as it will not arrest masticatory pain but will TN. The anticonvulsant carbamazepine is the first line treatment; second line ...
Alternative Medicine Masticatory Muscle Myositis Sammie0327 Dr. Carol Osborne: I see in one discussion that you recommended ... Alternative Medicine Masticatory Muscle Myositis. Dr. Carol Osborne: I see in one discussion that you recommended Vitamin E, ... Create an account to receive updates on: Alternative Medicine Masticatory Muscle Myositis ...
... is an inflammatory condition involving the muscles of mastication or chewing in the dog. Learn more about MMM here. ... Overview of Masticatory Muscle Myositis in Dogs. Masticatory muscle myositis (MMM) is an inflammatory condition involving the ... These include the masseter (cheek muscle), temporalis (muscle on top of the head), and pterygoid muscles. These muscles are ... Masticatory Muscle Myositis (MMM) in Dogs. 12 Sep, 2015 Dr. Erika de Papp 170,983 Views ...
Most Commonly Asked Questions about Masticatory Muscle Myositis Masticatory Muscle Myositis in the Cavalier King Charles ... Masticatory muscle myositis (MMM) is an inflammatory disease in dogs affecting the muscles of mastication (chewing). It is also ... In chronic MMM there is atrophy of the jaw muscles, and scarring of the masticatory muscles due to fibrosis may result in ... ISBN 1-893441-82-2. Clooten J, Woods J, Smith-Maxie L (2003). "Myasthenia gravis and masticatory muscle myositis in a dog". Can ...
Re: Masticatory muscle myositis. Home Main › Forums › Dogs › Health › Masticatory muscle myositis › Re: Masticatory muscle ...
... masticatory muscles include In Vivo Evaluation of the Mechanical and Viscoelastic Properties of the Rat Tongue, In Vivo ... 1Department of Physiology and Pennsylvania Muscle Institute, Perelman School of Medicine, University of Pennsylvania, 2Center ...
Masticatory Muscle Myositis. Dog Food Advisor › Forums › Diet and Health › Masticatory Muscle Myositis ... Masticatory Muscle Myositis is a very serious condition, if it was my dog, I would be inclined to take a much more aggressive ... I know it was 2015 when you werent sure if your dog had Masticatory Muscle Myositis. What even happen?. I have a dog that ... Have you looked on facebook for any groups for Canine Masticatory Muscle Myositis or Yahoo also has groups best to talk with ...
... encompasses a group of disorders of the masticatory muscles and temporomandibular joints. Major precipitating factors are ... Electromyographic Evaluation of Masticatory Muscle Activity in Patients with Temporomandibular Dysfunction. Iva Alajbeg Melita ... "Electromyographic Evaluation of Masticatory Muscle Activity in Patients with Temporomandibular Dysfunction." Acta stomatologica ... "Electromyographic Evaluation of Masticatory Muscle Activity in Patients with Temporomandibular Dysfunction." Acta stomatologica ...
The alterations in masticatory muscle electrical activity showed by EMG recordings in children with TMD-P affect their muscle ... The altered masticatory muscle activity in TMD-P children can affect their muscle function. ... Cleft children diagnosed with TMD-P have altered masticatory muscle activity, and this can affect their muscle function. ... 45] The temporalis anterior muscle: vertically along the anterior margin of the muscle; the masseter muscle: parallel to the ...
... and assessment of masticatory muscles function in central occlusion. Results. Symptoms of masticatory system dysfunction were ... The Influence of Emotional State on the Masticatory Muscles Function in the Group of Young Healthy Adults. Stocka Anna,1 Kuc ... Objective. To determine the effect of stress on the masticatory muscles function in young healthy adults. Material and Methods ... Stress may affect the function of all the components of the masticatory system and may ultimately lead to differentiated ...
Electromyographic activity of masticatory muscles in elderly women - a pilot study Ewelina Gaszynska,1 Karolina Kopacz,2 ... Skeletal muscle strength deteriorates in older age. This deterioration is also observed within masticatory muscles.. Methods: A ... Conclusion: Decrease in electromyographic activity of masticatory muscles in elderly women is related to age, deterioration of ... Surface electromyography was performed to evaluate masticatory muscles activity. Afterwards, measurement of masseter thickness ...
Thermal Evaluation of Myogenous Temporomandibular Disorders and Myofascial Trigger Points in the Masticatory Muscles: 10.4018/ ... This chapter intends to study two masticatory muscles, masseter and anterior temporalis, in measurement of the cutaneous ... "Thermal Evaluation of Myogenous Temporomandibular Disorders and Myofascial Trigger Points in the Masticatory Muscles." In ... Thermal Evaluation of Myogenous Temporomandibular Disorders and Myofascial Trigger Points in the Masticatory Muscles. Denise ...
... muscle forces) the model behavior is most sensitive. Estimates of muscle forces actin … ... Modeling masticatory muscle force in finite element analysis: sensitivity analysis using principal coordinates analysis Anat ... it is important to include estimates of the relative recruitment levels of the masticatory muscles. However, a lot can be ... muscle forces) the model behavior is most sensitive. Estimates of muscle forces acting on the model are derived from estimates ...
Analysis of electromyographic activity of masticatory muscles and quality of life of women with rheumatoid arthritis. ... Assessment of muscle activity was performed by EMG recordings of the right masseter (RM), left masseter (LM), right temporal ( ... This research evaluated of the EMG activity of masseter and temporalis muscles and quality of life of the women with rheumatoid ... RT) and left temporal (LT) muscles, during rest , clenching in maximum voluntary contraction, right and left laterality, ...
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Keywords: electromyography, chewing, masticatory muscles, fatigue, orofacial pain, pain adaptation model, maximum voluntary ... Surface Electromyography of the Masticatory Muscles for Application in Dental Practice. Current Evidence and Future ... enables the acquisition of valid and reliable quantitative data on the functional condition of the masticatory muscles as a ... Meaningful EMG data can be gained regarding resting activity, maximum muscle activation, frequency spectrum under various ...
Increased Masticatory Muscle Stiffness during Limb Muscle Flaccidity Associated with Succinylcholine Administration. ... Increased Masticatory Muscle Stiffness during Limb Muscle Flaccidity Associated with Succinylcholine Administration ... Increased Masticatory Muscle Stiffness during Limb Muscle Flaccidity Associated with Succinylcholine Administration ... Increased Masticatory Muscle Stiffness during Limb Muscle Flaccidity Associated with Succinylcholine Administration. ...
A close relationship may be present between the masticatory muscle activities and the oral environment. The present study was ... Effect of change in the vertical dimension on masticatory muscle activity. Research Project ... the change in occlusal area and region on masticatory muscle activity.. The subjects were 10 adult males with normal ... IBut when given occlusal contact on bilateral side, the decrease of nocturnal masseter muscle activites are related to maximum ...
MAGNETIC STIMULATION / CORTEX / EVOKED EMG / MASTICATORY MUSCLE / MASSETER / DEPRESSION PHASE / MAN / 経頭蓋磁気刺激 / 咀嚼筋誘発筋電図 / 両側性応 ... EVOKED EMG of THE MASTICATORY MUSCLES by TRANSCRANIAL MAGNETIC STIMULATION IN MAN. Research Project ... These responses were thought to be M-wave, a wave corresponding to S-wave in the extremity muscles, one drived from the cortex ... Other two responses were recorded from the contralatera masseter muscle by positioning the coil center at 3-5.5cm laterally
... of all patients experiencing headaches also had masticatory muscle pain, or pain in the jaw muscles. This is critical ... 80% Of Patients Have Masticatory Muscle Pain. An article in Cephalgia should be of great interest to Chicago Patients suffering ... Of the headache patients, 81.1% presented with masseter muscle pain and 47.8% with temporal muscle pain. This finding suggests ... Headches are a Trigeminal Nerve Disorder and the largest input to the trigeminal nervous system are the jaws, the jaw muscles, ...
Quantitative analysis of human masticatory muscles using magnetic resonance imaging. Authors: Ng, H.P.. Foong, K.W.C. Ong, S.H. ... The total masticatory muscle volume on the left and right sides of normal subjects is similar © 2009 The British Institute of ... The volumes of the human masticatory muscles (masseter, lateral and medial pterygoid) were measured from the scans using our ... Conclusions: The computed volumes of the masticatory muscles show a strong correlation between the volumes of the left and ...
PERSPECTIVE The current study showed the existence of multiple active muscle TrPs in the masticatory and neck-shoulder muscles ... in the masticatory and neck-shoulder muscles of women with myofascial temporomandibular disorders (TMD). Twenty-five women with ... Referred pain areas from neck TrPs were greater than the pain areas from masticatory muscle TrPs (P , .01). Referred pain areas ... The local and referred pain elicited from active TrPs in the masticatory and neck-shoulder muscles shared similar pain pattern ...
The 3D-reconstructed masticatory muscles were then attached to the 3D skull model. The masticatory movements were animated ... and it is therefore important to study the specific functions and dynamics of the mandibular and masticatory muscles. However, ... simulation to observe the functions and movements of each of the masticatory muscles and the mandible while chewing. To ... the shortness of muscle fibers and the diversity of movement directions make it difficult to study and simplify the dynamics of ...
... its probable that they may have masticatory muscle myositis. Learn how to treat myositis, its symptoms... ... Myositis can affect dogs in just one muscle or in groups of muscles:. *Masticatory Muscle Myositis: chewing muscles found on ... The masticatory muscles are the muscles used for chewing, this means that the dog cannot open their mouths are are in extreme ... What is masticory muscle myositis in dogs? Masticatory muscle myositis (MMM) is an immune system disorder where the dogs ...
Masticatory Muscle Myositis (MMM) is a horrible dog disease that can be deadly. Read an update of this dog three years after ... Masticatory Muscle Myositis (MMM) Three Years Later. July, 2016...Recently Ive received emails asking for an update on our ... He had been afflicted by the strange and terrible dog disease called Masticatory Muscle Myositis (MMM). Im happy to report ... Masticatory Muscle Myositis (MMM) Three Years Later Guinness is Best in Show (and a good beer) Senior Dog Honored Original ...
臺大位居世界頂尖大學之列,為永久珍藏及向國際展現本校豐碩的研究成果及學術能量,圖書館整合機構典藏(NTUR)與學術庫(AH)不同功能平台,成為臺大學術典藏NTU scholars。期能整合研究能量、促
Kuboki, T. (1996). Hemodynamic Changes Measured by NIR Spectroscopy in Human Masticatory Muscles-Relationship between ... Kuboki, T 1996, Hemodynamic Changes Measured by NIR Spectroscopy in Human Masticatory Muscles-Relationship between Contraction ... T1 - Hemodynamic Changes Measured by NIR Spectroscopy in Human Masticatory Muscles-Relationship between Contraction levels and ... Hemodynamic Changes Measured by NIR Spectroscopy in Human Masticatory Muscles-Relationship between Contraction levels and ...
Masticatory muscles. - Temporo-mandibular joint. - Masticatory biomechanics. - Morphology and limits of the oral cavity. - ... General information on bones, joints, muscles; axial and appendicular skeleton; joints of the human body; head, trunk and limb ... in particular of the head and neck district and the masticatory apparatus. ... muscles.. BLOOD CIRCULATORY APPARATUS. - Definition, classification and structure of arteries, veins and capillaries.. - Heart ...
masticatory definition: of or for mastication; specif., adapted for chewingnoun pl. -·ries any substance to be chewed but not ... masticatory definition: of or for mastication; specif., adapted for chewingnoun pl. -·ries any substance to be chewed but not ... Of, relating to, or used in mastication: masticatory muscles. *Adapted for chewing. ... masticatory. mas·ti·ca·to·ry. of or for mastication; specif., adapted for chewing ...
Keywords : temporomandibular disorder; hypermobility; joint instability; electromyography; masticatory muscles. · text in ... electromyographic analysis of the masticatory muscles. Braz. J. Oral Sci. [online]. 2011, vol.10, n.2, pp. 146-151. ISSN 1677- ... and asymptomatic individuals and to compare the activity of their masticatory muscles. Methods: 61 female patients aged 18 to ... The activity of the left masseter muscle was significantly higher (p=0.0072) in the volunteers with TMD and GJH compared with ...
... electromyographic analysis of the masticatory muscles. Braz. J. Oral Sci. []. 2011, 10, 2, pp. 146-151. ISSN 1677-3225. ... and asymptomatic individuals and to compare the activity of their masticatory muscles. Methods: 61 female patients aged 18 to ... The activity of the left masseter muscle was significantly higher (p=0.0072) in the volunteers with TMD and GJH compared with ... This result suggests that these muscles need to be recruited for the joint stabilization due to the low ligamentar resistance ...
  • Surface EMG recordings were obtained from left and right anterior temporal muscle, left and right masseter muscle and from left and right digastric muscle in eight mandibular positions. (srce.hr)
  • Masticatory muscles are closely involved in mastication, pronunciation, and swallowing, and it is therefore important to study the specific functions and dynamics of the mandibular and masticatory muscles. (semanticscholar.org)
  • Electromyographic recordings of the masseter and anterior temporal muscles were acquired bilaterally at mandibular rest and in maximal intercuspal position. (bvsalud.org)
  • The muscles responsible for the mandibular, tongue, hyoid, soft palate, lips movements generate mechanical forces that are dissipated by the hard tissues (bones, temporomandibular joint, teeth). (stomaeduj.com)
  • The present study was conducted to ascertain characteristics of mandibular movements in patients with SQM, observe the kinetics of masticatory muscles using a four-dimensional (4D) muscle model, and kinetically investigate the etiology of Square Mandible (SQM). (elsevier.com)
  • Insufficient expansion of the temporal muscle stresses the masseter muscle and leads to hypertrophy of the masseter muscle and hyperplasia of the mandibular angle, resulting in the unique facial configuration. (elsevier.com)
  • Objective: The aim of this study was to evaluate whether vertical facial patterns influence maximal occlusal force (MOF), masticatory muscle electromyographic (EMG) activity, and medial mandibular flexure (MMF). (unicamp.br)
  • Conclusion: Within the limitations of the study, it may be concluded that maximum occlusal force, masticatory muscle activity and medial mandibular flexure were influenced by the vertical facial pattern. (unicamp.br)
  • [1] In contrast, the nearby masticatory muscles are supplied by the mandibular nerve , a branch of the trigeminal nerve (cranial nerve V). (wikipedia.org)
  • This study aims to analyze the mandibular mobility, thickness of the masseter and temporal muscles, bite force and the quality of life of women with rheumatoid arthritis. (usp.br)
  • In the lower portion of the mandibular head at its point of junction with the condylar neck (CN), the pterygoid fossa can be seen (PF), where the lateral pterygoid muscle is inserted. (intechopen.com)
  • Masseter muscle reattachment after mandibular angle surgery. (harvard.edu)
  • The two muscles are innervated by branches of the anterior trunk of the mandibular nerve issued by the third division of the trigeminal nerve (motor branch). (isciii.es)
  • The authors made a prospective study in 17 healthy adult subjects of mandibular biomechanics by electromyographic analysis of the masseter muscles and the anterior region of the temporal muscle on both sides, left and right, during maximum bite effort. (isciii.es)
  • 7] During tonic-clonic seizures, TMJ dislocation occurs when uncoordinated forces caused chiefly by the lateral pterygoid muscles, unilaterally or bilaterally, protract the articular discs and mandibular condyles out of the mandibular fossa causing both the condyles and the articular discs to crossover the articular eminence into infratemporal fossa. (thefreedictionary.com)
  • Typically presents with 4 characteristic features: TMJ pain, noise in the joint, masticatory muscle tenderness, and limited mandibular movement. (bmj.com)
  • Surface electromyography was performed to evaluate masticatory muscles activity. (dovepress.com)
  • Surface Electromyography of the Masticatory Muscles for Application in Dental Practice. (quintpub.com)
  • On the basis of well-founded clinical evaluations and taking into account special methodological recommendations, surface electromyography (EMG) enables the acquisition of valid and reliable quantitative data on the functional condition of the masticatory muscles as a euromuscular functional analysis. (quintpub.com)
  • Introduction: Surface electromyography (sEMG) allows the quantitative and qualitative analysis of muscles recruitment and it is a method currently used in research and in the clinical practice. (stomaeduj.com)
  • The volumes of the human masticatory muscles (masseter, lateral and medial pterygoid) were measured from the scans using our previously proposed method. (nus.edu.sg)
  • Kuboki, T 1996, ' Hemodynamic changes at various contraction levels in human masticatory muscles(共著) ', Journal of Dental Research , vol. 75, no. (elsevier.com)
  • To evaluate the effects of bruxism on masticatory muscle electromyographic (EMG) activity. (bvsalud.org)
  • Purpose: The objective of this study was to investigate the initial effects of the vertical thickness of occlusal splints on the electromyographic (EMG) activities (integrated EMG values) of temporal and masseter muscles during sleep in subjects with a nocturnal bruxism habit using a portable EMG recorder. (elsevier.com)
  • Conclusions: When the occlusal splints were used as a bruxism countermeasure, it was suggested from the analysis of muscle activities during sleep at night that the S3 splint was superior to the S6 splint. (elsevier.com)
  • 2003). 'Electromyographic Evaluation of Masticatory Muscle Activity in Patients with Temporomandibular Dysfunction', Acta stomatologica Croatica , 37(2), str. (srce.hr)
  • Alajbeg I, Valentić-Peruzović M, Alajbeg I, Ileš D, Knezović-Zlatarić D, Katunarić M. Electromyographic Evaluation of Masticatory Muscle Activity in Patients with Temporomandibular Dysfunction. (srce.hr)
  • The term temporomandibular dysfunction (TMD) encompasses a group of disorders of the masticatory muscles and temporomandibular joints. (srce.hr)
  • Chronic stress may reveal or exacerbate symptoms of masticatory dysfunction. (hindawi.com)
  • These can put additional stress on surrounding muscles, leading to spread of dysfunction and pain. (medscape.com)
  • Temporomandibular joint dysfunction ( TMD , TMJD ) is an umbrella term covering pain and dysfunction of the muscles of mastication (the muscles that move the jaw) and the temporomandibular joints (the joints which connect the mandible to the skull ). (wikipedia.org)
  • Masticatory muscle dysfunction of bruxers is mainly represented as higher potential in postural position and lower potential during maximal voluntary clenching in intercuspal position of anterior temporalis and masseters. (bvsalud.org)
  • The 4D muscle model showed that the cause of limited mouth opening in SQM patient was insufficient expansion of the temporal muscle, and not dysfunction of the opening muscles. (elsevier.com)
  • [ 1 ] MTrPs are hyperirritable tender spots in palpable tense bands of skeletal muscle that refer pain and motor dysfunction, often to another location. (medscape.com)
  • Masticatory muscle hyperactivity and temporomandibular joint dysfunction. (springer.com)
  • Learn how to assess for joint and muscle tissue dysfunction and pain inhibition with repercussion on the 'pain neuromatrix' of the brainstem. (aaop.org)
  • Pagina 126 is so great that the muscles become fatigued, to the point that a transient myospasm is developed thereby initiating the masticatory pain-dysfunction syndrome. (google.nl)
  • A) Patient with masticatory muscle dysfunction with teeth in centric occlusion. (google.nl)
  • http://www.ncbi.nlm.nih.gov/pmc/articles/PMC1113540/?tool=pubmed http://www.ncbi.nlm.nih.gov/pubmed/9665905?tool=bestpractice.com Myofascial pain and dysfunction is the most common subtype and affects the muscles of mastication. (bmj.com)
  • Isometric maximal voluntary contraction decreased in active masseters with increasing age and in active and passive temporalis muscles with increasing age and increasing body mass index. (dovepress.com)
  • Assessment of muscle activity was performed by EMG recordings of the right masseter (RM), left masseter (LM), right temporal (RT) and left temporal (LT) muscles, during rest , clenching in maximum voluntary contraction, right and left laterality, protrusion, habitual chewing (peanuts and raisins) and non-habitual chewing (Parafilm M). Surface EMG was performed using TrignoTM Wireless EMG Delsys. (omicsonline.org)
  • Meaningful EMG data can be gained regarding resting activity, maximum muscle activation, frequency spectrum under various loading conditions, as well as bilateral symmetry of the contraction behavior of the jaw muscles. (quintpub.com)
  • During muscle contraction, myosin heads act as cross-bridges that cyclically interact with the actin molecules that form the thin filaments. (biologists.com)
  • This cyclic activity is coupled to the hydrolysis of ATP,generating the relative force and motion between filaments that underlie the sliding filament theory of muscle contraction. (biologists.com)
  • The speed of contraction of a muscle is proportional to the ATPase activity of its myosin( Bárány, 1967 ). (biologists.com)
  • Three single contraction knots can be seen scattered among normal muscle fibers. (medscape.com)
  • Beyond the thickened segment of the contractured muscle fiber at the contraction knot, the muscle fiber becomes markedly thinned and consists of stretched sarcomeres to compensate for the contractured ones in the knot segment. (medscape.com)
  • These are mainly considered here as masticatory loads due to the contraction of paired primary chewing muscles such as masseter, temporalis, and pterygoid that attach to cranial elements. (wiley.com)
  • The action potential of the motor unit is obtained with a mild voluntary contraction of the muscle recorded with a concentric needle electrode inserted in the muscle under study. (isciii.es)
  • They explore a large area of muscle and are nonspecific, but they serve to assess the changes in the global electrical muscular activity at rest and maximum muscular contraction, being the result of voltage variations that occur in muscular fibers as the expression of cell membrane depolarization during contraction. (isciii.es)
  • The normal muscle at rest is electrically silent and is activated progressively in relation to the voluntary muscular contraction. (isciii.es)
  • For the masseter muscle, the electrode is placed one centimeter below the jaw angle, although the masseter muscle is delimited easily by palpation of the muscular contraction produced when gritting the teeth. (isciii.es)
  • Sudden contraction of temporalis muscle will result in coronoid fracture, which is rare. (intelligentdental.com)
  • The disease is believed to be an immune-mediated or autoimmune process (these terms are synonymous) because the immune system inappropriately makes antibodies directed against these special muscle fibers. (petplace.com)
  • The end result of the antibody production is destruction of the muscle fibers, resulting in inflammation and cell death. (petplace.com)
  • MMM is caused by the presence of 2M fibers in the muscles of the jaw. (wikipedia.org)
  • However, the shortness of muscle fibers and the diversity of movement directions make it difficult to study and simplify the dynamics of mastication. (semanticscholar.org)
  • Indeed, the thickness of the hypodermis, crosstalk from different muscles, the instrumental noise and the position of the electrodes relative to the muscle fibers and the motor point can influence the sEMG signal. (stomaeduj.com)
  • Muscle fibers need to alternately contract and relax to provide blood flow and replenish their energy supply. (medscape.com)
  • Cross-sectional drawing shows flat palpation of a taut band and its trigger point.Left: Skin pushed to one side to begin palpation (A). The fingertip slides across muscle fibers to feel the cord-line texture of the taut band rolling beneath it (B). The skin is pushed to other side at completion of movement. (medscape.com)
  • This same movement performed vigorously is snapping palpation (C).Right: Muscle fibers surrounded by the thumb and fingers in a pincer grip (A). The hardness of the taut band is felt clearly as it is rolled between the digits (B). The palpable edge of the taut band is sharply defined as it escapes from between the fingertips, often with a local twitch response (C). (medscape.com)
  • Some isolated large round muscle fibers and some groups of these darkly staining, enlarged, round muscle fibers appear in cross-sections. (medscape.com)
  • More advanced testing may include demonstrating the autoantibodies against the muscle fibers. (petmd.com)
  • This is an odd autoimmune syndrome in which the dog's own immune system attacks special muscle strands called 2M fibers found in the masseter and temporalis muscles on the head. (mvtimes.com)
  • This type of EMG produces recordings of high quality and specificity that allow the study of the characteristics of the motor unit potentials to identify different neurologic diseases that can affect any component of the motor unit (alpha motor neuron of the spinal anterior horn, its axon, and all the muscle fibers innervated by this axon that are activated almost simultaneously), neuromuscular junction, and muscle. (isciii.es)
  • Masticatory muscle myositis (MMM) is an inflammatory condition involving the muscles of mastication or chewing in the dog. (petplace.com)
  • MMM is an inflammatory condition which specifically affects the muscles of mastication or chewing. (petplace.com)
  • 3 exp Mastication/ or exp Masticatory Muscles/ or muscles of mastication.mp. (dentisty.org)
  • [2] Another definition of temporomandibular disorders is "a group of conditions with similar signs and symptoms that affect the temporomandibular joints, the muscles of mastication, or both. (wikipedia.org)
  • During mammalian evolution, mastication of food became important, and in some taxa jaw closers replaced masticatory myosin with α-cardiac, developmental, slow or fast limb myosins to adapt to the variety of diets and eating habits. (biologists.com)
  • Dolichofacial subjects presents poorer mechanical advantage, less efficiency in masticatory muscles during mastication and in generating bite force, smaller occlusal contact area and masticatory capacity when compared to brachyfacial individuals. (clinicaltrials.gov)
  • During mastication, four muscles of mastication (or musculi masticatorii ) are responsible for adduction and lateral motion of the jaw. (intelligentdental.com)
  • Each of these primary muscles of mastication is paired, with each side of the mandible possessing one of the four. (intelligentdental.com)
  • It is one of the main muscle which helps in the process of mastication. (intelligentdental.com)
  • This is the muscle which helps in elevation of the mandible, It is one of the muscles of mastication. (intelligentdental.com)
  • This is a small muscle which also helps in the mastication process. (intelligentdental.com)
  • It is a thick muscle of mastication. (intelligentdental.com)
  • The four PCSA sets were derived from three different macaque species and one genus average, and the scaling parameters were either EMGs from 10, 20, 30, 40, 50 and 60 msec prior to peak bite force, or simply 100%, 50%, or 25% of peak muscle force. (nih.gov)
  • This includes soft tissue anatomy (e. g. muscle, periodontal ligament) and functional performance parameters such as bite force which natural selection also acts upon. (mpg.de)
  • Bite force and occlusion are the masticatory performance parameters which are directly linked to the efficiency of food intake and processing. (mpg.de)
  • The reproducibility of electromyographic (EMG) activity in relation to static bite-force from masticatory muscles for a given biting situation is largely unknown. (elsevier.com)
  • The slopes of the EMG activity vs. bite-force for a given biting situation were reliable for temporalis and masseter muscles. (elsevier.com)
  • Wide, bilateral chewing cycles were related to better masticatory performance, however, unilateral chewing was reported to be very common in population, and it has been associated to lateral asymmetry on bite force and occlusal contact area. (clinicaltrials.gov)
  • These include the masseter (cheek muscle), temporalis (muscle on top of the head), and pterygoid muscles. (petplace.com)
  • The affected muscles include the temporalis, masseter, and pterygoid muscles. (wikipedia.org)
  • The ∆T2 values of the masseter and lateral pterygoid muscles were analysed separately for superficial and deep layers, and for superior and inferior heads. (elsevier.com)
  • The ∆T2 values for the ipsilateral deep masseter were significantly lower, and for the superior head of the ipsilateral lateral pterygoid muscles were significantly higher, after left first premolar clenching compared to left first molar clenching. (elsevier.com)
  • Pterygoid Muscles" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus, MeSH (Medical Subject Headings) . (harvard.edu)
  • This graph shows the total number of publications written about "Pterygoid Muscles" by people in Harvard Catalyst Profiles by year, and whether "Pterygoid Muscles" was a major or minor topic of these publication. (harvard.edu)
  • Below are the most recent publications written about "Pterygoid Muscles" by people in Profiles. (harvard.edu)
  • The presence of an abscess near the temporomandibular joint and edema in the pterygoid muscles on MRI defined the trismus in our patient. (thefreedictionary.com)
  • Temporomandibular joint or related masticatory muscle pain represents the most common chronic orofacial pain condition. (lviglobal.com)
  • The main section of the book examines the contribution of human and animal studies to the field of biomarkers for orofacial pain and discusses biomarkers for masticatory muscle pain, temporomandibular joint pain, neuropathic face pain, and autonomic nervous system involvement in trigeminal facial pain. (springer.com)
  • These muscles are composed of a unique type of fiber that is not found in other skeletal muscles. (petplace.com)
  • However, skeletal muscles constitute some 45 % of the body mass of vertebrates and are the greatest consumers of energy in the body, the bulk of which is spent in cross-bridge cycling. (biologists.com)
  • The facial muscles are a group of striated skeletal muscles supplied by the facial nerve (cranial nerve VII) that, among other things, control facial expression. (wikipedia.org)
  • The aim of this study was to assess the electrical activity of temporalis and masseter muscles in children with cleft lip and palate (CLP) and pain-related temporomandibular disorders (TMD-P). Methods . (hindawi.com)
  • Temporomandibular disorders (TMD) are a collective term embracing a number of clinical problems affecting the masticatory muscles, the temporomandibular joint (TMJ), and associated structures [ 14 ]. (hindawi.com)
  • Thermal Evaluation of Myogenous Temporomandibular Disorders and Myofascial Trigger Points in the Masticatory Muscles. (igi-global.com)
  • UNLABELLED Our aim was to describe the referred pain patterns and size of areas of trigger points (TrPs) in the masticatory and neck-shoulder muscles of women with myofascial temporomandibular disorders (TMD). (semanticscholar.org)
  • Aim: This study aimed to verify the presence of generalized joint hypermobility (GHJ) in individuals with temporomandibular disorders (TMD) and asymptomatic individuals and to compare the activity of their masticatory muscles. (bvsalud.org)
  • To identify differences between 2 groups of patients with temporomandibular disorders (TMD), those with masticatory muscle pain (MMP) versus intracapsular pain (ICP), and to compare these differences on behavioral and psychosocial domains. (uky.edu)
  • TMJ collectively describes disorders of the temporomandibular joints, and the muscles responsible for jaw movement. (medicalnewstoday.com)
  • Patients with temporomandibular joint disorders suffer from hyperalgesia of the masticatory muscles. (umich.edu)
  • Temporomandibular disorders are a set of musculoskeletal dysfunctions within the masticatory system, with multiple etiologies. (bireme.br)
  • Temporomandibular disorders (TMDs) are MSK disorders that affect the masticatory muscles, the temporomandibular joint , and related structures in the neck and head. (clinicaltrials.gov)
  • There is a similar disease of the eye muscles found in Golden Retrievers. (wikipedia.org)
  • A similar form, affecting the extraocular muscles, has been seen in golden retrievers. (petmd.com)
  • 1) The nocturnal masseter muscle activites are significantly reduced when the interarch distance is increased by applicaton of the plates to elevate the occlusal plane widely above the rest position of the mandible. (nii.ac.jp)
  • The masseter muscle extends from the zygomatic arch to the ramus and body of the mandible. (intelligentdental.com)
  • Bilateral temporalis, deep masseter, superficial masseter, sternocleidomastoid, upper trapezius and suboccipital muscles were examined for TrPs by an assessor blinded to the subjects' condition. (semanticscholar.org)
  • EMG activity was recorded by placing surface electrodes on bilateral anterior temporalis (TA), masseters (MM), anterior digastrics (DA) and sternocleidomastoid (SCM) muscles . (bvsalud.org)
  • Studies on CT values of the masticatory muscles and sternocleidomastoid muscle. (nii.ac.jp)
  • There is a portfolio of work in this area currently studying hypertrophy, training regimes, effects of steroids, aging, responses to hypoxia, species and anatomical differences, muscle derived stem cells and interactions with the nervous system. (lboro.ac.uk)
  • Headches are a Trigeminal Nerve Disorder and the largest input to the trigeminal nervous system are the jaws, the jaw muscles, the jaw joints, the teeth and the periodontal ligaments. (sleepandhealth.com)
  • This control of blood flow to the brain is determined by the trigeminal nervous system and is greatly influenced or controlled by input from the teeth, jaw muscles and related structures. (sleepandhealth.com)
  • How do the jaws and teeth covary to achieve masticatory efficiency? (mpg.de)
  • Masticatory muscle activity during teeth clenching is affected by occlusal pattern. (elsevier.com)
  • However, few studies have performed simultaneous evaluation of all masticatory activities during teeth clenching under various occlusal conditions. (elsevier.com)
  • Delimitation of the safe area - a line from around the lower portion of the ear to the angle of the mouth - and delimitation of the anterior and posterior portions of the muscle through muscle palpation with patients grinding their teeth. (nih.gov)
  • Graphic presentation of mean coefficients with the muscle relaxed (left) and with the teeth ground (right) showing progressive facial thinning that reached its peak at 12 weeks and reduced at 24 weeks. (nih.gov)
  • Appointed to a Chair in Exercise Biochemistry and Cell Biology and established the Muscle Cellular and Molecular Physiology Research Group in the Institute for Sport and Physical Activity Research in Bedford in September 2009 to December 2011. (lboro.ac.uk)
  • In the skeletal muscle systems (muscle cellular and molecular physiology), the ability to stimulate the tissue engineered constructs either electrically or mechanically is critical. (lboro.ac.uk)
  • Referred pain from muscle trigger points in the masticatory and neck-shoulder musculature in women with temporomandibular disoders. (semanticscholar.org)
  • Dental procedures, such as local anesthesia or extractions, may cause MOT of the masticatory musculature. (biomedcentral.com)
  • Conclusions: Infrared imaging measurements seem to indicate that it can be used as an aid in complimentary diagnosing of TMDs and MTPs in masticatory muscles. (igi-global.com)
  • Multiple active myofascial trigger points and pressure pain sensitivity maps in the temporalis muscle are related in women with chronic tension type headache. (semanticscholar.org)
  • Detecting local twitch responses of myofascial trigger points in the lower-back muscles using ultrasonography. (medscape.com)
  • Any one of these muscles can develop myofascial trigger points (MTrPs). (medscape.com)
  • 2) The nocturnal masseter muscle activies are decreased when given occlusal contact on one side. (nii.ac.jp)
  • IBut when given occlusal contact on bilateral side, the decrease of nocturnal masseter muscle activites are related to maximum occlusal force and the proportion of occlusion, but have no relation to the change of the occlusal area. (nii.ac.jp)
  • These results quantitatively demonstrate a significant increase in activity of the superior head of the ipsilateral lateral pterygoid muscle and a significant decrease in activity of the ipsilateral deep masseter muscle with forward displacement of the occlusal contact point during unilateral tooth clenching. (elsevier.com)
  • Of the headache patients, 81.1% presented with masseter muscle pain and 47.8% with temporal muscle pain. (sleepandhealth.com)
  • Also, the right temporal muscle showed higher activity in subjects with GJH and TMD compared with asymptomatic individuals without hypermobility (p=0.0248). (bvsalud.org)
  • 2, While the temporal muscle of volunteer was markedly expanded, that of SQM patient was not. (elsevier.com)
  • The electromyographic activities of the masseter and anterior temporal muscles were recorded during maximal voluntary clenching. (unicamp.br)
  • The muscle activities of the left anterior temporal muscles and masseter muscles were recorded without occlusal splints (NS), with the S3 splint, and with the S6 splint by a portable EMG recorder. (elsevier.com)
  • Results: The integrated EMG values of masseter and temporal muscles decreased following insertion of the S3 splint but were not significantly affected by the S6 splint. (elsevier.com)
  • However, the muscles that have been studied in these EMG studies have been mainly the temporal and masseter, 9 because they are more accessible, larger, and easily located. (isciii.es)
  • The temporal muscle is located by placing the electrode two centimeters above the zygomatic arc and two centimeters posterior to the eye commissure. (isciii.es)
  • The Deep Temporal artery supplies the large muscle. (intelligentdental.com)
  • The rest activity of the temporalis and masseter muscles was significantly higher in TMD-P group compared with non-TMD children. (hindawi.com)
  • A significant decrease in temporalis muscle activity during MVC was observed in TMD-P patients. (hindawi.com)
  • There was a significant increase in the Asymmetry Index for temporalis and masseter muscle rest activity in the TMD-P group. (hindawi.com)
  • Cleft children diagnosed with TMD-P have altered masticatory muscle activity, and this can affect their muscle function. (hindawi.com)
  • All the muscles activity in central occlusion was comparable in female and male groups. (hindawi.com)
  • To evaluate the effect of age and chosen factors related to aging such as dentition, muscle strength, and nutrition on masticatory muscles electromyographic activity during chewing in healthy elderly women. (dovepress.com)
  • In active and passive temporalis muscles, mean electromyographic activity during the sequence and the cycle decreased with increasing age, increasing body mass index, and loss of natural dentition. (dovepress.com)
  • Individuals with natural dentition had significantly higher mean muscle activity during sequence and cycle in active temporalis muscles than those wearing full dentures and higher maximal activity during cycle in individuals with active and passive temporalis muscles than in complete denture wearers. (dovepress.com)
  • Decrease in electromyographic activity of masticatory muscles in elderly women is related to age, deterioration of dental status, and body mass index. (dovepress.com)
  • In this study, the behavior of the model was measured under different assumptions regarding the PCSAs of the jaw muscles and the latency between EMG activity in those muscles and the resulting force production. (nih.gov)
  • This research evaluated of the EMG activity of masseter and temporalis muscles and quality of life of the women with rheumatoid arthritis. (omicsonline.org)
  • The present study was carried out to evaluate the effect of the incrase in the vertical dimension, the change in occlusal area and region on masticatory muscle activity. (nii.ac.jp)
  • Publications] Kogawa T: 'Effect of the change in occlusal area and region on nocturnal masseter muscle activity' J.Kyushu Dental Society. (nii.ac.jp)
  • The activity of the left masseter muscle was significantly higher (p=0.0072) in the volunteers with TMD and GJH compared with in the individuals with TMD but without hypermobility. (bvsalud.org)
  • Methodology: To evaluate the repeatability of the normalized indexes describing masticatory muscles sEMG, the standardized cutaneous myoelectric activity of Temporalis Anterior and Masseter muscles was recorded twice during a one week interval (Acquisition sessions T1 and T2) in 20 young healthy adults. (stomaeduj.com)
  • Study design Standardized cutaneous myoelectric activity of Temporalis Anterior and Masseter muscles was acquired twice with a one-week interval (Acquisition sessions T1 and T2) in 20 young healthy adults. (stomaeduj.com)
  • There is contrasting evidence available for association of pain-related TMD and masticatory muscle activity (MMA). (elsevier.com)
  • The aim of this study was to use muscle functional magnetic resonance imaging (mfMRI) to evaluate the effects of changes in occlusal point on masticatory activity during single tooth clenching. (elsevier.com)
  • Changes in mean proton transverse relaxation time (∆T2) as an index of activity in all masticatory muscles during left unilateral clenching at the first molar or first premolar for 1 min were examined in nine healthy volunteers. (elsevier.com)
  • Conclusions The short-term therapeutic effects of TENS are superior to those of the placebo, because of reported facial pain , deep pain sensitivity and masticatory muscle EMG activity improvement. (bvsalud.org)
  • As the maximal stresses of fast and slow muscles are approximately the same,muscle power (force × velocity) is also dependent on myosin ATPase activity. (biologists.com)
  • The relationship between nocturnal masseter muscle activity and urinary catecholamines. (springer.com)
  • Stress perception and nocturnal masseter muscle activity. (springer.com)
  • In recent decades, numerous researches on human motor control have suggested the potential effect of dental occlusion and muscle activity of the craniomandibular system (CMS). (frontiersin.org)
  • Smartphone-assisted monitoring of masticatory muscle activity in freely moving individuals. (otago.ac.nz)
  • From the 15 reported cases that appeared after dental treatment like extraction or local anesthesia the medial pterygoid ( n = 10) was the most affected muscle. (biomedcentral.com)
  • The facial muscles are just under the skin ( subcutaneous ) muscles that control facial expression. (wikipedia.org)
  • The facial muscles are supplied by the facial nerve (cranial nerve VII), with each nerve serving one side of the face. (wikipedia.org)
  • Although it is mostly in the neck and can be grouped with the neck muscles by location, it can be considered a muscle of facial expression due to its common nerve supply. (wikipedia.org)
  • The stylohyoid muscle , stapedius and posterior belly of the digastric muscle are also supplied by the facial nerve, but are not considered muscles of facial expression. (wikipedia.org)
  • The facial muscles are derived from the second branchial/ pharyngeal arch . (wikipedia.org)
  • An inability to form facial expressions on one side of the face may be the first sign of damage to the nerve of these muscles. (wikipedia.org)
  • Damage to the facial nerve results in facial paralysis of the muscles of facial expression on the involved side. (wikipedia.org)
  • Focal inflammatory myopathy affects specific muscle groups, in this case the masticatory muscles, which are the facial muscles involved in chewing, and the extraocular muscles, the group of muscles that are adjacent to the eyeball and that control the movements of the eye. (petmd.com)
  • Temporomandibular joint abnormalities, facial pain and masticatory muscle weakness were also common. (eurekalert.org)
  • This chapter intends to study two masticatory muscles, masseter and anterior temporalis, in measurement of the cutaneous temperature of volunteers with and without myogenous TMD and MTP. (igi-global.com)
  • In chronic MMM there is atrophy of the jaw muscles, and scarring of the masticatory muscles due to fibrosis may result in inability to open the mouth (trismus). (wikipedia.org)
  • The primary manifestations of TMD-P are pain of a persistent, recurring, or chronic nature in the masticatory muscles, TMJ, or in adjacent structures [ 17 , 18 ]. (hindawi.com)
  • This is critical information because referred muscle pain is a primary cause of all headaches It is the primary source of pain in tension headache and chronic daily headaches but is also implicated as a trigger or exacerbating factor in all headaches. (sleepandhealth.com)
  • Patients with Concomitant Chronic Neck Pain and Myofascial Pain in Masticatory Muscles Have More Widespread Pain and Distal Hyperalgesia than Patients with Only Chronic Neck Pain. (semanticscholar.org)
  • Symptoms of acute MMM include swelling of the jaw muscles, drooling, and pain on opening the mouth. (wikipedia.org)
  • Stress may affect the function of all the components of the masticatory system and may ultimately lead to differentiated symptoms and finally to systemic and structural dysfunctions. (hindawi.com)
  • This is why in this AnimalWised article we are going to go through what masticatory muscle myositis is, its symptoms, causes and most importantly, how to treat it. (animalwised.com)
  • This study aims to determine whether the injection of botulinum toxin A or placebo (unpreserved 0.9% sodium chloride) into the masseter and temporalis muscles provides pain relief and improved jaw function in those who suffer from myofascial pain disorder. (clinicaltrials.gov)
  • Limited data exists to support the use of botulinum toxin A in the management of myofascial pain disorder of the masticatory region. (clinicaltrials.gov)
  • Diagnosis of MMM is through either biopsy of the temporalis or masseter muscles or the 2M antibody assay, in which blood serum of the possible MMM-dog is reacted with temporalis tissue of a normal dog, or both. (wikipedia.org)
  • Risk-factors, etiology, clinical features, diagnostic imaging, as well as different treatment options were evaluated and recommendations for the prevention, diagnosis, and therapy of MOT of the masticatory muscles were given. (biomedcentral.com)
  • The diagnosis and treatment of muscle pain syndromes. (medscape.com)
  • Definitive diagnosis requires either a muscle biopsy or a special blood test called a Type 2M muscle autoantibody test, which is positive in about 80 percent of MM cases. (mvtimes.com)
  • Conclusions: The computed volumes of the masticatory muscles show a strong correlation between the volumes of the left and right masseters, and lateral and medial pterygoids for normal adult subjects. (nus.edu.sg)
  • Are there any adverse effects that result from injection of botulinum toxin A or placebo into the masseters and temporalis muscles? (clinicaltrials.gov)
  • Previously collected behavioral data show that intra-masseter activation of P2X 3 results in mechanical hyperalgesia which is prevented by pre-treatment of the muscle with a specific TRPV1 antagonist. (umich.edu)
  • Although the data suggest a trend of increased masseter MMA in the pain-related TMD diagnoses group both during awake and sleep time periods, such observation is not maintained for the temporalis muscle. (elsevier.com)
  • The objective of this study was to quantitatively evaluate the correlation between left and right masticatory muscle volumes in normal subjects. (nus.edu.sg)
  • The aim of the present study was to evaluate the repeatability of masticatory muscles 236 STOMA.EDUJ (2016) 3 (2) STANDARDIZED ELECTROMYOGRAPHIC INDEXES ALLOW A RELIABLE MEASUREMENT OF MASTICATORY MUSCLES FUNCTION normalized indexes obtained during maximal voluntary clenching sEMG acquisitions. (stomaeduj.com)
  • When we are stressed, it is chiefly our small neck muscles that tense up. (helsana.ch)
  • Conclusion: This data support the association between masticatory muscle hyperactivity and painful TMD conditions. (elsevier.com)
  • Evidence has shown the role of muscle and joints, and impairments in motor control strategy, which has set the stage for a multisystem approach to the evaluation, treatment and management of patients with TMD. (aaop.org)
  • All the participants underwent clinical examination according to the Slavicek scheme, questionnaire survey according to Perceived Stress Scale, and assessment of masticatory muscles function in central occlusion. (hindawi.com)
  • Craniofacial muscle pain: review of mechanisms and clinical manifestations. (semanticscholar.org)
  • The aim of this article was to analyse and interpret the existing literature reporting MOT of masticatory muscles and compare the results with our own clinical experience with MOT. (biomedcentral.com)
  • The term myopathy is a general clinical term for a disorder of the muscles. (petmd.com)
  • Owners may also notice atrophy of the head muscles, which may cause a pointy or skull-like appearance to the head and a sunken appearance to the eyes. (petplace.com)
  • She said at this point since her only symptom seems to be her yawning and muscle atrophy that we don't need to put her on prednisone, or NSAIDs. (dogfoodadvisor.com)
  • skin lesions develop along with muscle atrophy. (animalwised.com)
  • Women in the intervention arm will receive 8 weeks of progressive exercise MCTF of the cervical muscles, twice per week. (clinicaltrials.gov)
  • You may have already heard about muscle pain or the TMJ and perhaps you've read about the importance of the cervical and spine in TMD. (aaop.org)
  • Our work on a finite element model of the skull of Macaca aims to investigate the functional significance of specific features of primate skulls and to determine to which of the input variables (elastic properties, muscle forces) the model behavior is most sensitive. (nih.gov)
  • These data suggest that in order to create an accurate and valid finite element model of the behavior of the primate skull at a particular instant during feeding, it is important to include estimates of the relative recruitment levels of the masticatory muscles. (nih.gov)