The human lateral pterygoid muscle

Murray, Greg M.; Bhutada, Manish K.; Peck, Christopher C.; Phanachet, Intira; Sae-Lee, Daraporn; Whittle, Terry

doi:10.1016/j.archoralbio.2006.10.002

Cited by 70 publications

(57 citation statements)

References 28 publications

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“…The opposite effect, the mouth's opening, is caused by activating the inferior head of the lateral pterygoid and the anterior belly of the digastric together with the mylohyoid and the geniohyoid. According to more recent findings, mandibular protrusion and laterotrusion occurs largely by contraction of the lateral pterygoid muscle's inferior head [53].…”

Section: The Masticatory Processmentioning

confidence: 99%

Malocclusion, Mastication and the Gastrointestinal System

Proff

2010

J Orofac Orthop

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The relationship between malocclusion and the gastrointestinal system has only been examined occasionally, while several pertinent studies have addressed the chewing function as a functional link between oral structures and the gastrointestinal tract. Following an overview of the physiological masticatory process, the available evidence regarding associations among dental status, chewing function and gastrointestinal disorders are summarized. Finally, a review of the relationships between orthodontic deformities and mastication is presented.

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Section: The Masticatory Processmentioning

confidence: 99%

Malocclusion, Mastication and the Gastrointestinal System

Proff

2010

J Orofac Orthop

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“…Peut-être cela permettraitil de mieux comprendre la genèse des luxations discales et leur rééducation. Cependant, l'anatomie, la physiologie et les rapports du muscle ptérygoïdien latéral avec l'ATM sont complexes (pour une synthèse voir [18][19][20][21]) et l'exploration élec-tromyographique (EMG) de ce muscle est difficile [22]. Dans les conditions physiologiques, le chef inférieur est actif lors de l'ouverture, la propulsion et l'abduction controlatérale.…”

Section: Dysfonctionnements Musculaires Douloureux Lors D'activités Punclassified

“…Inversement, le chef supérieur du ptérygoïdien latéral est actif lors de la fermeture, la rétropulsion, l'adduction controlatérale, et ce, en contraction excentrique, ce qui pourrait expliquer la plus grande vulnérabilité de ce muscle ; ainsi, il freine le retour du condyle dans la fosse mandibulaire, assure la coaptation du complexe condylo-discal et empêche le déplacement antéro-médial du disque [18]. Mais récemment, on a montré que les parties latérale et médiale du chef supé-rieur n'avaient pas le même comportement ; sa partie médiale se contracte avec le chef inférieur, et seule sa partie latérale se contracte à la fermeture, en rétropulsion et en diduction homolatérale [21,22]. L'activité du chef inférieur du muscle ptérygoïdien latéral a été étudiée en présence de douleur musculaire expérimentale [23].…”

Section: Dysfonctionnements Musculaires Douloureux Lors D'activités Punclassified

Dysfonctionnements musculaires douloureux de l’appareil manducateur et dysfonctionnements cervicaux et linguaux connexes (3^e partie)

Fougeront

Garnier

Fleiter

2014

Med Buccale Chir Buccale

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Résumé -D'après le « modèle de l'adaptation à la douleur », dans les algies et dysfonctionnements de l'appareil manducateur (ADAM) il y a une activité paradoxale des muscles masticateurs : une hypoactivité agoniste à l'élévation et une faible hyperactivité antagoniste (co-activation agoniste/antagoniste) à l'abaissement mandibulaire ; ces régulations motrices induites par la douleur impliquent le système moteur trigéminal (V) segmentaire et/ou le CPG de la mastication. Malgré la puissance de ce modèle, il n'explique pas toutes les adaptations motrices dans les cervicalgies. Cela peut être dû : à la complexité de la colonne cervicale (avec ses nombreux muscles agonistes, antagonistes et synergistes) ; et à la spécificité du système neuromusculaire cervical impliqué dans la posture céphalique/corporelle, la perméabilité des voies aérifères supérieures, l'activité du bras/ ceinture scapulaire et du cou, et enfin l'activité du cou et de la mâchoire. À part la douleur, le stress psychologique peut aussi entraîner des dysfonctionnements dans les troubles musculo-squelettiques (par exemple kinésiophobie, mise au repos difficile). Enfin, il est possible que les dysfonctionnements linguaux soient en interrelations avec les ADAM : la diminution de l'activité agoniste des muscles élévateurs favoriserait la déglutition immature où l'activité des muscles peauciers (VII) prédomine sur celle des muscles masticateurs (V).Abstract -Manducatory apparatus myofascial pain and dysfunction and connected cervical spine and tongue dysfunction (3 rd part). According to the "pain adaptation model", temporomandibular disorder (TMD) pain induces a paradoxical activity of masticatory muscles: an agonistic hypoactivity during jaw closing and a weak antagonistic activity during jaw opening (agonist/antagonist co-activation); the pain-induced motor regulation implies the segmental trigeminal (V) motor system and/or CPG. This model has been extended to other types of musculoskeletal disorders (MSD). However, despite its power, this model does not fit with all types of neck muscle activities in neck pain. This discrepancy may be due: to the complexity of the cervical spine (with its numerous agonist, antagonist and synergist muscles), and to the specificities of the cervical neuromuscular system in interrelationships with the control of body and head posture, the patency of the upper airway depending on head/ cervical posture, the neck and arm/shoulder muscles' activity, and finally, the neck and masticatory muscles' activity. Besides pain, psychological stress may induce motor dysfunction in MSD (e.g. kinesiophobia, difficulty switching off). Finally, it is hypothesised that tongue dysfunction could be connected to TMD (due to intersegmental coordination between V, VII and XII motor nuclei): the weakness of the agonistic activity of masticatory muscles would favour immature deglutition, where facial muscle (VII) activity predominates over masticatory muscle (V) activity.

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“…Hatta kraniomandibular bozukluklar›n tedavisinden sonra servikal omurga postüründe, masseter ve sternokleidomastoideus kaslar›n›n elektromyografik aktivitelerinde düzelme oldu¤u göz-lenmifltir (8,12,13,25). Postür d›fl›nda EMG ile yap›lan bir çal›flma-da çenede görülen osteoporozun da kas aktivitelerini etkileyerek çene semptomlar›na yol açt›¤› gösterilmifltir (17).…”

Section: G Gi Ir Ri Ifl Flunclassified

The Role of Electromyography in Temporomandibular Joint Diseases

Şahin¹

2010

tftr

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Ö Öz ze et tTemporomandibular eklem hastal›klar› (TMEH) terimi temporomandibular eklem (TME), çi¤neme kaslar› ve bunlarla iliflkili yap›lar› içeren ve çok say›da klinik problemin bir arada bulundu¤unu ifade eden bir terimdir. Tüm bu problemlerin tan›s›n› koymada ve ayr›c› tan›s›n›n yap›lma-s›nda; anamnez, fizik muayene, radyoloji ve biyokimya ile elektromyografiyi (EMG) içine alan laboratuvar tetkikleri yard›mc› olmaktad›r. Bu yard›mc› tetikler içerisinde bulunan EMG özellikle kaslar›n-sinirlerin ça-l›flmas›n› muayene etmede ve bu bölgelere ait ay›r›c› tan›da en etkili yöntemlerdendir. Türk Fiz T›p Rehab Derg 2010;56 Özel Say› 1:7-10. A An na ah ht ta ar r K Ke el li im me el le er r: : Kas, temporomandibular eklemi, elektromyografi S Su um mm ma ar ry y Temporomandibular Joint Diseases (TMJD) is a term used for disorders involving temporomandibular joint, mastication muscles and structures related with them and for various clinical problems coexisting together. Anamnesis, physical examination, radiology, biochemistry and electromyography (EMG) helps in diagnosing and making the differential diagnosis for all these problems. Among these useful methods, EMG is especially effective in examining muscle and nerve functioning and in the differential diagnosis in such locations. Turk J Phys Med Rehab 2010;56 Suppl 1:7-10. K Ke ey y W Wo or rd ds s: : Muscle, temporomandibular joint, electomyography Nilay fiAH‹N Selçuk Üniversitesi Meram T›p Fakültesi, Fiziksel T›p ve Rehabilitasyon Anabilim Dal›, Konya, Türkiye G Gi ir ri ifl flTemporomandibular eklem hastal›klar› (TMEH) terimi; temporomandibular eklem (TME), çi¤neme kaslar› ve bunlarla iliflkili yap›lar› içeren ve çok say›da klinik problemin bir arada bulundu¤unu ifade eden bir terimdir (1). TMEH, daha çok gençlerde görülen, çene hareketi s›ras›nda çenede veya çevre dokularda a¤r›, çene hareketlerinde k›s›tl›l›k ve klikle karakterize olan, bafl, boyun ve difl a¤r›s›na yol açan semptomlardan oluflmaktad›r (2). TMEH s›kl›kla somatik ve nörolojik yap›larla iliflkili patolojik durumlarla birliktedir, yaflam kalitesini oldukça fazla etkilemekle birlikte, nadiren hayat› tehdit eder (3,4). TMEH'nin tan› ve tedavisinde multidisipliner yaklafl›m oldukça önemlidir (5).F Fo on nk ks si iy yo on ne el l A An na at to om mi i TME stomatognatik sistemin bir parças›d›r. Bu sistem; kranium, mandibula, maksilla, servikal vertebralar, hyoid, klavikula ve sternumu içine alan kemik bölümü; bafl-boyun-çene kaslar›, ligamanlar, TME, difl, yanak, dudak ve tükürük bezlerini içine alan kas-yumuflak doku bölümü; difller ve periodental dokular› içine alan difl-difle ait yap›lar ve merkezi sinir sistemi, otonom sinir sistemi ve periferik sinir sisteminden oluflan sinirlere ait bölüm-den oluflmaktad›r. Bu halkay› meydana getiren zincirlerden birinin kopmas› baz› problemlerin ortaya ç›kmas›na neden olmaktad›r. Bu sebeple TME, stomatognatik sistemi oluflturan bölümler-den herhangi birinde meydana gelen bir problemde olumsuz olarak etkilenmektedir. Çene eklemini bu bölümler içerisinde en fazla etki...

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The human lateral pterygoid muscle

Cited by 70 publications

References 28 publications

Malocclusion, Mastication and the Gastrointestinal System

Malocclusion, Mastication and the Gastrointestinal System

Dysfonctionnements musculaires douloureux de l’appareil manducateur et dysfonctionnements cervicaux et linguaux connexes (3^e partie)

The Role of Electromyography in Temporomandibular Joint Diseases

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The human lateral pterygoid muscle

Cited by 70 publications

References 28 publications

Malocclusion, Mastication and the Gastrointestinal System

Malocclusion, Mastication and the Gastrointestinal System

Dysfonctionnements musculaires douloureux de l’appareil manducateur et dysfonctionnements cervicaux et linguaux connexes (3e partie)

The Role of Electromyography in Temporomandibular Joint Diseases

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Dysfonctionnements musculaires douloureux de l’appareil manducateur et dysfonctionnements cervicaux et linguaux connexes (3^e partie)