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  • bone
  • Treatment usually involves resection of a portion of the Masseter muscle with or without the underlying bone. (pubmedcentralcanada.ca)
  • Sample size was small, there were no uninjected control subjects, differences between the groups at the start were not reported, the bone examination was very restricted, and it is unknown whether full restoration of muscle and bone would eventually have occurred. (tmj.org)
  • The finding of bone loss is consistent with the only other human Botox study on jaws, a cross-sectional examination of the condylar bone of TMJ disorder patients who did or did not receive masseter injections (Raphael et al. (tmj.org)
  • The genes PITX2 , ENPP1 and ESR1 have multiple genetic associations with functional properties in muscle and bone . (temple.edu)
  • proprioception
  • The present study aimed to identify the regions that process proprioception of the jaw-closing muscles using in vivo optical imaging with a voltage-sensitive dye in rats under urethane anesthesia. (frontiersin.org)
  • These findings suggest that proprioception of the masseter is processed in S1 and S2/IOR. (frontiersin.org)
  • Muscle spindles play multifunctional roles contributing in proprioception, postural and movement control, motor learning and in plasticity of motor behaviors (Windhorst, 2007, 2008), in predicting future kinematic states by acting as forward sensory model (Dimitriou and Edin, 2010), and as suggested, in the genesis and spread of chronic muscle pain (Johansson et al. (docme.ru)
  • undergo
  • This happens because the Botox causes temporary muscle paralysis and the masseters undergo atrophy when they are not used. (tmj.org)
  • As motor and sensory control systems of muscles are interlinked, also the intrafusal fiber population, that is, muscle spindles, should undergo age-related changes in fiber type appearance. (docme.ru)
  • Hence, contrary to our hypothesis, masseter spindles do not undergo major morphological changes between young age and adulthood. (docme.ru)
  • salivary
  • The aim of the study was to obtain information about masseter muscle activity, the main determinant of salivary flow during the chewing process. (surrey.ac.uk)
  • In contrast to roughages, concentrates are consumed rapidly, with less intense masseter muscle activity as reflected by the low amplitude of EMG (MAP 4.9±1.5 V). This is associated with low salivary flow rates that are likely to negatively affect gastric digestion. (surrey.ac.uk)
  • Botox
  • One group received a single dose of Botox in each muscle while the second group got two doses. (tmj.org)
  • However, now there is a non-surgical procedure for reducing these muscles and making the face look slimmer, known as the "Botox square jaw reduction" or "Botox Masseter reduction" - which is now is available in NYC thanks to board certified dermatologist Dr. Michele Green. (michelegreenmd.com)
  • Injecting Botox into various parts of the masseter muscle can help relax it and in turn shrink the jaw line and reduce the square appearance of the jaw area. (michelegreenmd.com)
  • jaws
  • Individuals who grind their teeth while sleeping may develop squared jaws as a result of the masseter growing due to the additional exercise it receives over time. (healthline.com)
  • differences
  • The objectives of this study are to investigate how PITX2 , ENPP1 and ESR1 gene expression associates with four subclassifications of craniofacial asymmetry , temporomandibular disorders and fiber type differences compared between right and left masseter muscles . (temple.edu)
  • Average relative quantity gene expression values and percent differences between left and right masseter samples were calculated . (temple.edu)
  • Expression
  • With the remaining muscle samples , total RNA was isolated and PITX2 , ENPP1 , and ESR1 expression was quantified using TaqMan qRT-PCR . (temple.edu)
  • ENPP1 and ESR1 expression is differentially expressed between right and left masseter muscle in patients with asymmetry . (temple.edu)
  • 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. (oup.com)
  • Function
  • The mechanisms underlying cortical processing of proprioceptive information are critical to understanding how sensory information from the masticatory muscles regulates orofacial motor function. (frontiersin.org)
  • Simultaneous recordings of AMG and EMG from the masseter muscles may be useful for assessing electro‐mechanical muscle function but further validation studies are required before the technique can be used clinically. (edu.au)
  • INTRODUCTION Control of jaw muscle function relies on selective recruitment of motor units [cf. (docme.ru)
  • Upper
  • The tarsal plate (4) of the upper eyelid has been exposed together with the corrugator supercilii muscle (2) and nerves emerging through the orbital septum. (stanford.edu)
  • activity
  • The activity of the masseter muscle was determined by EMG (IED®) and the following measurements made: Amplitude (muscle action potential = MAP, expressed in V) and duration of MAP (expressed in sec). (surrey.ac.uk)
  • The intake of hay or haylage was associated with intense masseter muscle activity (MAP: hay 9.82±1.7 V, haylage 11.4±3.3 V, duration MAP: hay 0.31±0.04 sec, haylage 0.30±0.04 sec). (surrey.ac.uk)
  • Electrical activity of the muscle was examined by surface electro‐myography (EMG) and the mechanical activity, in the form of muscle sounds, was examined by acoustic myography (AMG). (edu.au)
  • Correlation between masseter muscle activity and maximum bite force among various facial divergence pattern. (joralres.com)
  • The EMG recording of masseter muscle activity in Hypodivergent group was significantly higher than Normodivergent and Hyperdivergent groups. (joralres.com)
  • A significant correlation existed between masseter activity and bite force. (joralres.com)