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  2. Trismus - Wikipedia

    en.wikipedia.org/wiki/Trismus

    It is a temporary condition that usually lasts no more than two weeks. Dental trismus is caused by an injury to the masticatory muscles, such as opening the jaw for an extended period of time or having a needle pass through a muscle. Typical dental anesthesia for the lower jaw involves inserting a needle into or through a muscle.

  3. Meige's syndrome - Wikipedia

    en.wikipedia.org/wiki/Meige's_syndrome

    Oromandibular dystonia (OMD) is a form of focal dystonia that affects varying areas of the head and neck including the lower face, jaw, tongue and larynx. The spasms may cause the mouth to pull open, shut tight, or move repetitively. Speech and swallowing may be distorted.

  4. Temporomandibular joint dysfunction - Wikipedia

    en.wikipedia.org/wiki/Temporomandibular_joint...

    The 2 parts of lateral pterygoid have different actions. The lower head contracts during mouth opening, and the upper head contracts during mouth closing. The function of the lower head is to steady the articular disc as it moves back with the condyle into the articular fossa. It is relaxed during mouth closure. [27]

  5. Oromandibular dystonia - Wikipedia

    en.wikipedia.org/wiki/Oromandibular_dystonia

    Oromandibular dystonia (OMD) is an uncommon focal neurological condition affecting the jaws, face, and mouth. [1] Oromandibular dystonia is characterized by involuntary spasms of the tongue, jaw, and mouth muscles that result in bruxism, or grinding of the teeth, and jaw closure.

  6. How to Tell If You're Clenching Your Jaw—And How to Stop - AOL

    www.aol.com/tell-youre-clenching-jaw-stop...

    Chronic clenching can also lead to receding gums—which increases tooth sensitivity—as well as cracked roots that require extraction, and, in some cases, limited ability to open the jaw.

  7. Orofacial myofunctional disorders - Wikipedia

    en.wikipedia.org/wiki/Orofacial_myofunctional...

    Consequently, an open mouth posture can lead to malocclusions and problems in swallowing. Other causes of open-mouth posture are the weakness of lip muscles, overall lack of tone in the body or hypotonia, and prolonged/chronic allergies of the respiratory tract.

  8. Temporomandibular joint - Wikipedia

    en.wikipedia.org/wiki/Temporomandibular_joint

    After the mouth is open to this extent, the mouth can no longer open without the superior compartment of the temporomandibular joints becoming active. At this point, if the mouth continues to open, not only are the condylar heads rotating within the lower compartment of the temporomandibular joints, but the entire apparatus (condylar head and ...

  9. Eagle syndrome - Wikipedia

    en.wikipedia.org/wiki/Eagle_syndrome

    Eagle syndrome (also termed stylohyoid syndrome, [1] styloid syndrome, [2] stylalgia, [3] styloid-stylohyoid syndrome, [2] or styloid–carotid artery syndrome) [4] is an uncommon condition commonly characterized but not limited to sudden, sharp nerve-like pain in the jaw bone and joint, back of the throat, and base of the tongue, triggered by swallowing, moving the jaw, or turning the neck. [1]