masseter muscle

Summary

Summary: A masticatory muscle whose action is closing the jaws.

Top Publications

  1. Umeki D, Ohnuki Y, Mototani Y, Shiozawa K, Fujita T, Nakamura Y, et al. Effects of chronic Akt/mTOR inhibition by rapamycin on mechanical overload-induced hypertrophy and myosin heavy chain transition in masseter muscle. J Pharmacol Sci. 2013;122:278-88 pubmed
    To examine the effects of the Akt/mammalian target of rapamycin (mTOR) pathway on masseter muscle hypertrophy and myosin heavy chain (MHC) transition in response to mechanical overload, we analyzed the effects of bite-opening (BO) on the ..
  2. Guo W, Wang H, Zou S, Wei F, Dubner R, Ren K. Long lasting pain hypersensitivity following ligation of the tendon of the masseter muscle in rats: a model of myogenic orofacial pain. Mol Pain. 2010;6:40 pubmed publisher
    ..temporomandibular pain, a number of preclinical models have been developed to induce myogenic pain of the masseter muscle, one of the four muscles involved in mastication...
  3. Ernberg M, Castrillon E, Ghafouri B, Larsson B, Gerdle B, List T, et al. Experimental myalgia induced by repeated infusion of acidic saline into the human masseter muscle does not cause the release of algesic substances. Eur J Pain. 2013;17:539-50 pubmed publisher
    ..study, we tested the hypothesis that two repeated intramuscular infusions of acidic saline into the human masseter muscle is associated with pain, mechanical allodynia and release of algesic substances...
  4. Bajek S, Nikolic M, Soic Vranic T, Arbanas J, Bajek G. Effect of hyperbaric oxygen treatment on myogenic transcriptional factors in regenerating rat masseter muscle. Coll Antropol. 2011;35 Suppl 2:91-5 pubmed
    ..The process of regeneration in rat masseter muscle was provoked with injection of local anesthetic bupivacaine hydrochloride...
  5. Iyomasa M, Rizzi É, Leão J, Issa J, Dias F, Pereira Y, et al. Zymographic and ultrastructural evaluations after low-level laser irradiation on masseter muscle of HRS/J strain mice. Lasers Med Sci. 2013;28:777-83 pubmed publisher
    ..This study evaluated the effect of LLLT (GaAlAs, 780 nm, 20 J/cm(2), 40 mW) on masseter muscle of HRS/J mice after different numbers of laser irradiations (three, six, and ten) for 20 s in alternate days...
  6. Castrillon E, Ernberg M, Cairns B, Wang K, Sessle B, Arendt Nielsen L, et al. Interstitial glutamate concentration is elevated in the masseter muscle of myofascial temporomandibular disorder patients. J Orofac Pain. 2010;24:350-60 pubmed
    To determine if myofascial temporomandibular disorder (TMD) pain patients have elevated interstitial concentrations of glutamate in the masseter muscle.
  7. Ren K, Dubner R. The role of trigeminal interpolaris-caudalis transition zone in persistent orofacial pain. Int Rev Neurobiol. 2011;97:207-25 pubmed publisher
    ..The Vi/Vc transition zone accesses rostral brain regions that are important for descending pain modulation, and somatovisceral and somatoautonomic processing and plays a unique role in coordinating trigeminal nocifensive responses...
  8. Naser ud Din S, Thoirs K, Sampson W. Ultrasonography, lateral cephalometry and 3D imaging of the human masseter muscle. Orthod Craniofac Res. 2011;14:33-43 pubmed publisher
    ..To develop prediction equations to assist the clinician to derive cephalometric norms from the non-invasive investigations of ultrasonography (US) and 3D imaging...
  9. Rizzi É, Issa J, Dias F, Leão J, Regalo S, Siéssere S, et al. Low-level laser intensity application in masseter muscle for treatment purposes. Photomed Laser Surg. 2010;28 Suppl 2:S31-5 pubmed publisher
    This study evaluated with histochemical analysis how the number of laser applications can affect the masseter muscle.

More Information

Publications86

  1. Ariji Y, Katsumata A, Hiraiwa Y, Izumi M, Sakuma S, Shimizu M, et al. Masseter muscle sonographic features as indices for evaluating efficacy of massage treatment. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010;110:517-26 pubmed publisher
    The aim of this study was to clarify the sonographic features of the masseter muscle as indices for judging the efficacy of massage treatment.
  2. Okamoto K, Tashiro A, Chang Z, Thompson R, Bereiter D. Temporomandibular joint-evoked responses by spinomedullary neurons and masseter muscle are enhanced after repeated psychophysical stress. Eur J Neurosci. 2012;36:2025-34 pubmed publisher
    ..stress alone was sufficient to alter the encoding properties of spinomedullary dorsal horn neurons and masseter muscle activity in male rats...
  3. Bendixen K, Baad Hansen L, Cairns B, Svensson P. Effects of low-dose intramuscular ketorolac on experimental pain in the masseter muscle of healthy women. J Orofac Pain. 2010;24:398-407 pubmed
    ..To investigate the effect of a low dose of intramuscular (im) ketorolac compared with lidocaine (LA) in a double-blinded, randomized, and controlled trial...
  4. Bhoyar P, Godbole S, Thombare R, Pakhan A. Effect of complete edentulism on masseter muscle thickness and changes after complete denture rehabilitation: an ultrasonographic study. J Investig Clin Dent. 2012;3:45-50 pubmed publisher
    The aim of the present study was to determine the changes in masseter muscle thickness due to the state of complete edentulism and the effect of complete denture rehabilitation on the masseter muscle.
  5. Palinkas M, Nassar M, Cecílio F, Siéssere S, Semprini M, Machado de Sousa J, et al. Age and gender influence on maximal bite force and masticatory muscles thickness. Arch Oral Biol. 2010;55:797-802 pubmed publisher
    ..The results of this study indicate that age and gender are associated with structural and functional alterations in the muscles of the stomatognathic system...
  6. Dias F, Issa J, Vicentini F, Fonseca M, Leão J, Siéssere S, et al. Effects of low-level laser therapy on the oxidative metabolism and matrix proteins in the rat masseter muscle. Photomed Laser Surg. 2011;29:677-84 pubmed publisher
    This study aims to analyze the effects of low-level laser therapy (LLLT) on the oxidative activity and the expression/activity of metalloproteinases of the masseter muscle.
  7. Forrester S, Presswood R, Toy A, Pain M. Occlusal measurement method can affect SEMG activity during occlusion. J Oral Rehabil. 2011;38:655-60 pubmed publisher
    ..In conclusion, occlusal indicators can change SEMG activity during occlusion which may affect the validity of the measurements they provide...
  8. Manfredini D, Cocilovo F, Favero L, Ferronato G, Tonello S, Guarda Nardini L. Surface electromyography of jaw muscles and kinesiographic recordings: diagnostic accuracy for myofascial pain. J Oral Rehabil. 2011;38:791-9 pubmed publisher
    ..Whether intended as a stand-alone measurement or as an adjunct to making clinical decisions, such instruments do not meet the standard of reliability and validity required for such usage...
  9. Amorim C, Giannasi L, Ferreira L, Magini M, Oliveira C, de Oliveira L, et al. Behavior analysis of electromyographic activity of the masseter muscle in sleep bruxers. J Bodyw Mov Ther. 2010;14:234-8 pubmed publisher
    ..The same results were verified in maximum voluntary contraction (MVC). These results confirmed that the use of occlusal splints reduced the electromyographic activity of the right and left masseters, showing its myorelaxing effect...
  10. Lin X, Wang Y, Yu J, Liu Y, Wang L, Li Q, et al. Sclerosing rhabdomyosarcoma presenting in the masseter muscle: a case report. Diagn Pathol. 2013;8:18 pubmed publisher
    ..Herein, we report a case of SRMS occurring in the masseter muscle in a 40-year-old male. The tumor showed a diverse histological pattern...
  11. Ohara Y, Hirano H, Watanabe Y, Edahiro A, Sato E, Shinkai S, et al. Masseter muscle tension and chewing ability in older persons. Geriatr Gerontol Int. 2013;13:372-7 pubmed publisher
    ..Few studies have discussed the effectiveness of the masseter muscle by palpation...
  12. Saloman J, Niu K, Ro J. Activation of peripheral delta-opioid receptors leads to anti-hyperalgesic responses in the masseter muscle of male and female rats. Neuroscience. 2011;190:379-85 pubmed publisher
    ..These studies revealed novel information about sex differences with regards to peripherally localized DOR-mediated anti-hyperalgesia under an orofacial muscle pain condition...
  13. Muller F, Hernandez M, Grütter L, Aracil Kessler L, Weingart D, Schimmel M. Masseter muscle thickness, chewing efficiency and bite force in edentulous patients with fixed and removable implant-supported prostheses: a cross-sectional multicenter study. Clin Oral Implants Res. 2012;23:144-150 pubmed publisher
    ..Null-hypotheses: chewing efficiency, maximum voluntary bite force (MBF) and masseter muscle thickness (MMT) are lower in patients with C/IOD compared with the patients with bimaxillary IFDPs...
  14. Castroflorio T, Falla D, Wang K, Svensson P, Farina D. Effect of experimental jaw-muscle pain on the spatial distribution of surface EMG activity of the human masseter muscle during tooth clenching. J Oral Rehabil. 2012;39:81-92 pubmed publisher
    This study tested the hypothesis that painful injections of glutamate into the human masseter muscle differentially affect the distribution of the electromyographic (EMG) activity in the masseter muscle at rest and during tooth clenching...
  15. Lund J, Sadeghi S, Athanassiadis T, Caram Salas N, Auclair F, Thivierge B, et al. Assessment of the potential role of muscle spindle mechanoreceptor afferents in chronic muscle pain in the rat masseter muscle. PLoS ONE. 2010;5:e11131 pubmed publisher
    ..Acidic saline (AS, pH 4.0) injections into the masseter muscle were used to induce persistent myalgia. Controls received saline at pH 7.2...
  16. Lee J, Saloman J, Weiland G, Auh Q, Chung M, Ro J. Functional interactions between NMDA receptors and TRPV1 in trigeminal sensory neurons mediate mechanical hyperalgesia in the rat masseter muscle. Pain. 2012;153:1514-24 pubmed publisher
    ..In the masseter muscle, direct application of NMDA induced a time-dependent increase in mechanical sensitivity, which was ..
  17. Castrillon E, Cairns B, Wang K, Arendt Nielsen L, Svensson P. Comparison of glutamate-evoked pain between the temporalis and masseter muscles in men and women. Pain. 2012;153:823-9 pubmed publisher
    ..Glutamate injection into the masseter muscle evokes pain that is greater in men than in women and this pain is attenuated by co-injection of the N-methyl-..
  18. Li Q, Zhang M, Chen Y, Wang Y, Huang F, Liu J. Oxidative damage and HSP70 expression in masseter muscle induced by psychological stress in rats. Physiol Behav. 2011;104:365-72 pubmed publisher
    Psychological stressors are generally associated with masseter muscle dysfunction and disorders in emotional response...
  19. Ambalavanar R, Yallampalli C, Yallampalli U, Dessem D. Injection of adjuvant but not acidic saline into craniofacial muscle evokes nociceptive behaviors and neuropeptide expression. Neuroscience. 2007;149:650-9 pubmed
    ..whether analogous transformations occur following repeated injections of acidic saline into the rat masseter muscle. Injection of acidic saline (pH 4) into the masseter muscle transiently lowered i.m...
  20. Pang Y, Li J, Nakamura K, Wu S, Kaneko T, Mizuno N. Expression of vesicular glutamate transporter 1 immunoreactivity in peripheral and central endings of trigeminal mesencephalic nucleus neurons in the rat. J Comp Neurol. 2006;498:129-41 pubmed
    ..These data indicate that VGLUT1 is expressed in both the central axon terminals and the peripheral sensory endings of Vmes neurons, although no VGLUT1 immunoreactivity was detectable in the cell bodies of Vmes neurons in adult rats. ..
  21. Tsujimura T, Kitagawa J, Ueda K, Iwata K. Inhibition of swallowing reflex following phosphorylation of extracellular signal-regulated kinase in nucleus tractus solitarii neurons in rats with masseter muscle nociception. Neurosci Lett. 2009;450:361-4 pubmed publisher
    ..The swallowing reflex was significantly inhibited after capsaicin (10, 30mM) injection into the masseter muscle compared to vehicle injection...
  22. Pidcock F, Wise J, Christensen J. Treatment of severe post-traumatic bruxism with botulinum toxin-A: case report. J Oral Maxillofac Surg. 2002;60:115-7 pubmed
  23. Suvinen T, Kemppainen P. Review of clinical EMG studies related to muscle and occlusal factors in healthy and TMD subjects. J Oral Rehabil. 2007;34:631-44 pubmed
  24. DuPont J, Brown C. Masseter tenomyositis. Cranio. 2009;27:180-4 pubmed
    The masseter muscle is an integral part of the oral facial complex and one of the muscles of mastication. It functions with the other masticatory muscles in moving and posturing the mandible and in verbalizing, eating and swallowing...
  25. Lobbezoo F, Huddleston Slater J. Variation in masticatory muscle activity during subsequent, submaximal clenching efforts. J Oral Rehabil. 2002;29:504-9 pubmed
    ..In conclusion small, coincidental variations in mandibular positioning during subsequent clenching efforts partly explain the variance in EMG activity of jaw closing muscles, especially at lower clenching levels...
  26. Vegas Bustamante E, Micó Llorens J, Gargallo Albiol J, Satorres Nieto M, Berini Aytes L, Gay Escoda C. Efficacy of methylprednisolone injected into the masseter muscle following the surgical extraction of impacted lower third molars. Int J Oral Maxillofac Surg. 2008;37:260-3 pubmed publisher
    ..this study was to demonstrate the efficacy of methylprednisolone, as a single 40-mg dose, injected into the masseter muscle upon completion of extraction of impacted lower third molars...
  27. Baba K, Haketa T, Sasaki Y, Ohyama T, Clark G. Association between masseter muscle activity levels recorded during sleep and signs and symptoms of temporomandibular disorders in healthy young adults. J Orofac Pain. 2005;19:226-31 pubmed
    To examine whether any signs and symptoms of temporomandibular disorders were significantly associated with masseter muscle activity levels during sleep...
  28. Honda A, Abe S, Hiroki E, Honda H, Iwanuma O, Yanagisawa N, et al. Activation of caspase 3, 9, 12, and Bax in masseter muscle of mdx mice during necrosis. J Muscle Res Cell Motil. 2007;28:243-7 pubmed
    ..pathway and the Bax, caspase-9, and caspase-3 genes involved in the mitochondrial stress pathway in the mdx masseter muscle. We found over-expression of caspase-12 in cells at 2-3 weeks after birth when muscle fiber necrosis was not ..
  29. Cruccu G, Iannetti G, Marx J, Thoemke F, Truini A, Fitzek S, et al. Brainstem reflex circuits revisited. Brain. 2005;128:386-94 pubmed
    ..The jaw jerk, perhaps the brainstem reflex most widely used in clinical neurophysiology, had no apparent topodiagnostic value, probably because it depends strongly on peripheral variables, including dental occlusion. ..
  30. Ro J, Harriott A, Crouse U, Capra N. Innocuous jaw movements increase c-fos expression in trigeminal sensory nuclei produced by masseter muscle inflammation. Pain. 2003;104:539-48 pubmed
    ..rats, unilateral injections of an inflammatory substance, mustard oil (MO: 20%, 25 microl) were made into a masseter muscle. In another group, controlled and systematic JM were provided following MO injection...
  31. Landulpho A, E Silva W, E Silva F, Vitti M. Electromyographic evaluation of masseter and anterior temporalis muscles in patients with temporomandibular disorders following interocclusal appliance treatment. J Oral Rehabil. 2004;31:95-8 pubmed
    ..The results showed that group function disclusion caused shorter EMG activity in the mandible rest position for the anterior temporalis muscle...
  32. Yano H, Yamamoto H, Hirata R, Hirano A. Post-traumatic severe trismus caused by impairment of the masticatory muscle. J Craniofac Surg. 2005;16:277-80 pubmed
    ..The other was a rare case accompanied with the bone formation in the masseter muscle and was diagnosed as myositis ossificans traumatica, which also presented as severe trismus, with a maximal ..
  33. Ambalavanar R, Moritani M, Moutanni A, Gangula P, Yallampalli C, Dessem D. Deep tissue inflammation upregulates neuropeptides and evokes nociceptive behaviors which are modulated by a neuropeptide antagonist. Pain. 2006;120:53-68 pubmed
    ..Local injection of CGRP antagonist directly into the masseter muscle prior to CFA produced similar, but less pronounced, effects...
  34. Sugiyo S, Takemura M, Dubner R, Ren K. Trigeminal transition zone/rostral ventromedial medulla connections and facilitation of orofacial hyperalgesia after masseter inflammation in rats. J Comp Neurol. 2005;493:510-23 pubmed
    ..into the RVM 7 days before injection of an inflammatory agent, complete Freund's adjuvant, into the masseter muscle and perfused at 2 hours postinflammation...
  35. Kawai N, Tanaka E, Langenbach G, van Wessel T, Brugman P, Sano R, et al. Daily jaw muscle activity in freely moving rats measured with radio-telemetry. Eur J Oral Sci. 2007;115:15-20 pubmed
    ..A telemetric device was implanted for the continuous recording of masseter muscle and digastric muscle activity...
  36. Komiyama O, Wang K, Svensson P, Arendt Nielsen L, Kawara M, De Laat A. The influence of psychological state on the masseteric exteroceptive suppression reflex and somatosensory function. Clin Neurophysiol. 2008;119:2321-8 pubmed publisher
    ..The ES in the surface EMG was recorded from the left masseter muscle in 12 men and 12 women...
  37. Svensson P, Castrillon E, Cairns B. Nerve growth factor-evoked masseter muscle sensitization and perturbation of jaw motor function in healthy women. J Orofac Pain. 2008;22:340-8 pubmed
    ..Combined these data would indicate if injection of NGF into the masseter muscle is a valid model of muscle pain related to temporomandibular disorders (TMD)...
  38. Kawai N, Tanaka E, Langenbach G, van Wessel T, Sano R, van Eijden T, et al. Jaw-muscle activity changes after the induction of osteoarthrosis in the temporomandibular joint by mechanical loading. J Orofac Pain. 2008;22:153-62 pubmed
    ..This might imply that muscle activity adapted to reduce the effects of (forced) joint overloading. ..
  39. Schindler H, Turp J, Blaser R, Lenz J. Differential activity patterns in the masseter muscle under simulated clenching and grinding forces. J Oral Rehabil. 2005;32:552-63 pubmed
    The aim of this study was to investigate (i) whether the masseter muscle shows differential activation under experimental conditions which simulate force generation during clenching and grinding activities; and (ii) whether there are (a) ..
  40. Sano R, Tanaka E, Korfage J, Langenbach G, Kawai N, van Eijden T, et al. Heterogeneity of fiber characteristics in the rat masseter and digastric muscles. J Anat. 2007;211:464-70 pubmed
    ..This detailed description of the fiber type composition can serve as a reference for future studies examining the muscular adaptations after the onset of various diseases in the masticatory system. ..
  41. Cairns B, Dong X, Mann M, Svensson P, Sessle B, Arendt Nielsen L, et al. Systemic administration of monosodium glutamate elevates intramuscular glutamate levels and sensitizes rat masseter muscle afferent fibers. Pain. 2007;132:33-41 pubmed
    ..into rats to determine whether it could significantly elevate interstitial concentrations of glutamate in the masseter muscle and whether MSG administration could excite and/or sensitize slowly conducting masseter afferent fibers ..
  42. Cairns B, Gambarota G, Svensson P, Arendt Nielsen L, Berde C. Glutamate-induced sensitization of rat masseter muscle fibers. Neuroscience. 2002;109:389-99 pubmed
    ..the effect of intramuscular injection of glutamate on the excitability and mechanical threshold of masseter muscle afferent fibers in anesthetized rats of both sexes. Injection of 1.0 M, but not 0...
  43. Clauss M, Hofmann R, Streich W, Fickel J, Hummel J. Higher masseter muscle mass in grazing than in browsing ruminants. Oecologia. 2008;157:377-85 pubmed publisher
    ..and Hofmann (J Zool 215:463-473, 1988)] did not find differences between ruminant feeding types in the masseter muscle mass of 22 species. Here, we expand the dataset to 48 ruminant species...
  44. Cvetko E, Erzen I. Effect of chronic uncontrollable stress on myosin heavy chain expression in rat masseter muscle. Pflugers Arch. 2001;442:R147-9 pubmed
    ..stress on the expression of myosin heavy chain (MyHC) isoforms in deep and superficial parts of the rat masseter muscle. Muscle cross sections of three month old Wistar rats were processed for immunohistochemical staining...
  45. Takeda M, Tanimoto T, Ito M, Nasu M, Matsumoto S. Role of capsaicin-sensitive primary afferent inputs from the masseter muscle in the C1 spinal neurons responding to tooth-pulp stimulation in rats. Exp Brain Res. 2005;160:107-17 pubmed
    The aim of the present study was to demonstrate the convergence of inputs from masseter muscle (MM) and tooth pulp (TP) onto C1 spinal neurons and to determine whether the afferent fibers express the functional vanilloid receptor (VR1)...
  46. Bombardi C, Grandis A, Chiocchetti R, Bortolami R, Johansson H, Lucchi M. Immunohistochemical localization of alpha(1a)-adrenoreceptors in muscle spindles of rabbit masseter muscle. Tissue Cell. 2006;38:121-5 pubmed
    The expression of alpha(1a)-adrenoreceptors (alpha(1a)-ARs) within the muscle spindles of rabbit masseter muscle was investigated...
  47. Ro J, Capra N. Assessing mechanical sensitivity of masseter muscle in lightly anesthetized rats: a model for craniofacial muscle hyperalgesia. Neurosci Res. 2006;56:119-23 pubmed
    In this report, we present a simple and reliable way of assessing mechanical sensitivity of masseter muscle as a model for craniofacial muscle hyperalgesia...
  48. Takeuchi H, Ikeda T, Clark G. A piezoelectric film-based intrasplint detection method for bruxism. J Prosthet Dent. 2001;86:195-202 pubmed
    ..An accurate, easy-to-use, long-term method other than EMG is needed to monitor bruxism...
  49. Rosales V, Ikeda K, Hizaki K, Naruo T, Nozoe S, Ito G. Emotional stress and brux-like activity of the masseter muscle in rats. Eur J Orthod. 2002;24:107-17 pubmed
    ..Brux-like activity appeared in the masseter muscle of the ES group on days 1, 4, 8, and 12, but not in the NS group...
  50. Pol Rodriguez M, Schwartz G, English A. Post-translational phosphorylation of the slow/beta myosin heavy chain isoform in adult rabbit masseter muscle. J Muscle Res Cell Motil. 2001;22:513-9 pubmed
    ..epitope expression in the slow/beta myosin heavy chain (MyHC) isoform, have been identified in adult rabbit masseter muscle. We investigated the role of post-translational phosphorylation in the expression of these four phenotypes...
  51. Ikeda T, Terayama R, Jue S, Sugiyo S, Dubner R, Ren K. Differential rostral projections of caudal brainstem neurons receiving trigeminal input after masseter inflammation. J Comp Neurol. 2003;465:220-33 pubmed
    ..nucleus (VPM) 7 days before injection of an inflammatory agent, complete Freund's adjuvant (CFA), into the masseter muscle. Rats were perfused at 2 hours after inflammation, and brainstem tissues were processed for Fos-Fluorogold ..
  52. Akutsu S, Shimada A, Yamane A. Transforming growth factor betas are upregulated in the rat masseter muscle hypertrophied by clenbuterol, a beta2 adrenergic agonist. Br J Pharmacol. 2006;147:412-21 pubmed
    ..growth factor (HGF), and platelet-derived growth factors (PDGFs) are involved in the hypertrophy of rat masseter muscle induced by clenbuterol. 2...
  53. Harriott A, Dessem D, Gold M. Inflammation increases the excitability of masseter muscle afferents. Neuroscience. 2006;141:433-42 pubmed
    ..we tested the hypotheses that inflammation increases the excitability of sensory neurons innervating the masseter muscle of the rat and that the ionic mechanisms underlying these changes are unique to these neurons...
  54. Kim J, Shin J, Kim S, Kim C. Effects of two different units of botulinum toxin type a evaluated by computed tomography and electromyographic measurements of human masseter muscle. Plast Reconstr Surg. 2007;119:711-7 pubmed
    ..Botulinum toxin type A injection into the masseter muscle can be alternatively used as a noninvasive treatment for masseteric hypertrophy...
  55. Falleti J, De Cecio R, Mentone A, Lamberti V, Friscia M, De Biasi S, et al. Extraskeletal chondroma of the masseter muscle: a case report with review of the literature. Int J Oral Maxillofac Surg. 2009;38:895-9 pubmed publisher
    The authors report a case of soft tissue chondroma of the masseter muscle in a 49-year-old man. The tumour was entirely composed of lobules of hyaline cartilage. The literature on head and neck soft tissue chondroma is also reviewed...
  56. Mameli O, Stanzani S, Russo A, Pellitteri R, Spatuzza M, Caria M, et al. Hypoglossal nucleus projections to the rat masseter muscle. Brain Res. 2009;1283:34-40 pubmed publisher
    ..Results showed that hypoglossal neurons also innervate the masseter muscle. Dil injected into the XII nucleus showed hypoglossal axons in the ipsilateral main trunk of the trigeminal ..
  57. Forrester S, Allen S, Presswood R, Toy A, Pain M. Neuromuscular function in healthy occlusion. J Oral Rehabil. 2010;37:663-9 pubmed publisher
  58. Albertin A, Kerppers I, Amorim C, Costa R, Ferrari Corrêa J, Oliveira C. The effect of manual therapy on masseter muscle pain and spasm. Electromyogr Clin Neurophysiol. 2010;50:107-12 pubmed
    ..This muscle has considerable strength and is one of the main muscles involved in the shredding of food It is therefore of utmost importance in the masticatory cycle and generally the most affected by pain and spasms...
  59. Cha B, Kim C, Baek S. Skeletal sagittal and vertical facial types and electromyographic activity of the masticatory muscle. Angle Orthod. 2007;77:463-70 pubmed
    ..To investigate the electromyographic activities of the anterior temporal (T) and masseter (M) muscles in different facial skeletal types...
  60. Shimizu K, Guo W, Wang H, Zou S, LaGraize S, Iwata K, et al. Differential involvement of trigeminal transition zone and laminated subnucleus caudalis in orofacial deep and cutaneous hyperalgesia: the effects of interleukin-10 and glial inhibitors. Mol Pain. 2009;5:75 pubmed publisher
  61. Botteron S, Verdebout C, Jeannet P, Kiliaridis S. Orofacial dysfunction in Duchenne muscular dystrophy. Arch Oral Biol. 2009;54:26-31 pubmed publisher
    ..possible deteriorations to the age of the patients and to the diminished internal structure quality of the masseter muscle. Bite force and finger force were measured in 16 DMD patients (6-20 years old) and 16 age matched controls...
  62. Horton M, Brandon C, Morris T, Braun T, Yaw K, Sciote J. Abundant expression of myosin heavy-chain IIB RNA in a subset of human masseter muscle fibres. Arch Oral Biol. 2001;46:1039-50 pubmed
    ..These findings provide further evidence for the complexity of myosin gene expression, especially in jaw-closing muscles...
  63. Yoshimi H, Sasaguri K, Tamaki K, Sato S. Identification of the occurrence and pattern of masseter muscle activities during sleep using EMG and accelerometer systems. Head Face Med. 2009;5:7 pubmed publisher
    ..Sleep bruxism has been described as a combination of different orofacial motor activities that include grinding, clenching and tapping, although accurate distribution of the activities still remains to be clarified...
  64. Goto T, Langenbach G, Hannam A. Length changes in the human masseter muscle after jaw movement. Anat Rec. 2001;262:293-300 pubmed
    ..The masseter muscle does not stretch uniformly for major jaw movement...
  65. Aoki T, Naito H, Ota Y, Shiiki K. Myositis ossificans traumatica of the masticatory muscles: review of the literature and report of a case. J Oral Maxillofac Surg. 2002;60:1083-8 pubmed
  66. Suvinen T, Reade P, Kononen M, Kemppainen P. Vertical jaw separation and masseter muscle electromyographic activity: a comparative study between asymptomatic controls & patients with temporomandibular pain & dysfunction. J Oral Rehabil. 2003;30:765-72 pubmed
    The aims of the present study were to assess the relationship pattern between bilateral masseter muscle electromyographic (MEMG) activity recordings and vertical jaw separation (VJS)...
  67. Kim K, Byun Y, Kim Y, Kim S. Muscle weakness after repeated injection of botulinum toxin type A evaluated according to bite force measurement of human masseter muscle. Dermatol Surg. 2009;35:1902-6 pubmed publisher
    ..Botulinum toxin type A (BTX-A) has been applied successfully to treat masseteric hypertrophy, but it can cause muscle weakness...
  68. Scopel V, Alves da Costa G, Urias D. An electromyographic study of masseter and anterior temporalis muscles in extra-articular myogenous TMJ pain patients compared to an asymptomatic and normal population. Cranio. 2005;23:194-203 pubmed
    ..The significant laterodeviating (torque) effect found in the temporomandibular disorder patients was reduced after treatment. No side prevalence was found in the control groups...
  69. Kiliaridis S, Mahboubi P, Raadsheer M, Katsaros C. Ultrasonographic thickness of the masseter muscle in growing individuals with unilateral crossbite. Angle Orthod. 2007;77:607-11 pubmed
  70. Deriu F, Tolu E, Rothwell J. A short latency vestibulomasseteric reflex evoked by electrical stimulation over the mastoid in healthy humans. J Physiol. 2003;553:267-79 pubmed
    ..We conclude that transmastoid electrical stimulation evokes vestibulomasseteric reflexes in healthy humans at latencies consistent with a di-trisynaptic pathway...
  71. Fernández Carnero J, La Touche R, Ortega Santiago R, Galan del Rio F, Pesquera J, Ge H, et al. Short-term effects of dry needling of active myofascial trigger points in the masseter muscle in patients with temporomandibular disorders. J Orofac Pain. 2010;24:106-12 pubmed
    To investigate the effects of dry needling over active trigger points (TrPs) in the masseter muscle in patients with temporomandibular disorders (TMD).
  72. Drobek W, Schoenaers J, De Laat A. Hormone-dependent fluctuations of pressure pain threshold and tactile threshold of the temporalis and masseter muscle. J Oral Rehabil. 2002;29:1042-51 pubmed
    ..A significant correlation between the PPT of the temporalis muscle and the TT of the overlying skin was observed...
  73. Kanaya H, Saito Y, Gama N, Konno W, Hirabayashi H, Haruna S. Intramuscular hemangioma of masseter muscle with prominent formation of phleboliths: a case report. Auris Nasus Larynx. 2008;35:587-91 pubmed publisher
    ..Magnetic resonance imaging (MRI) revealed a well-circumscribed, brighter mass in the right masseter muscle with numerous rounded areas of signal hypointensity...
  74. Mann M, Dong X, Svensson P, Cairns B. Influence of intramuscular nerve growth factor injection on the response properties of rat masseter muscle afferent fibers. J Orofac Pain. 2006;20:325-36 pubmed
    ..To investigate whether local administration of nerve growth factor (NGF) decreases the mechanical threshold (MT) of putative nociceptive masseter afferent fibers as part of its mechanism of mechanical sensitization...
  75. Ono T, Maekawa K, Watanabe S, Oka H, Kuboki T. Muscle contraction accelerates IL-6 mRNA expression in the rat masseter muscle. Arch Oral Biol. 2007;52:479-86 pubmed
    This study was conducted to determine if interleukin-6 (IL-6) and interleukin-1beta (IL-1beta) mRNA expression increase in response to muscle contraction caused by repetitive electrical stimulation of the rat masseter muscle.
  76. Sannomya E, Gonçalves M, Cavalcanti M. Masseter muscle hypertrophy: case report. Braz Dent J. 2006;17:347-50 pubmed
    b>Masseter muscle hypertrophy is characterized by unilateral or bilateral enlargement of the masseter muscles affecting both males and females after puberty. Its etiology remains unknown...
  77. Hu K, Kim S, Hur M, Park J, Song W, Koh K, et al. Topography of the masseter muscle in relation to treatment with botulinum toxin type A. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010;110:167-71 pubmed publisher
    The objective of this study was to provide the safest and most efficient site for injection of botulinum toxin type A into the masseter muscle.