""'Khanna and Andrade " "'in 1995 developed a group classification system for the surgical management of trismus:
12.
Late stage symptoms can include an serous otitis media, otalgia, trismus, dysphagia, cervical lymphadenopathy, persistent pain or referred pain and altered vision.
13.
On the moderate to severe parts of the spectrum are dystonia, trismus, pathologic tetanus, and other movement disorders featuring involuntary sustained strong contractions of skeletal muscle.
14.
The signs and symptoms of an isolated pterygomandiublar infection may include trismus ( difficulty opening the mouth ), however there is not usually any externally visible facial swelling.
15.
Misdiagnosis of MMM as a retroorbital abscess based on physical examination and finding of trismus leads to inappropriate treatment with antibiotics, which will not impede the progress of MMM.
16.
Characteristic features are risus sardonicus ( a rigid smile ), trismus ( commonly known as " lock-jaw " ), and opisthotonus ( rigid, arched back ).
17.
Trismus may be defined as inability to open the mouth due to muscle spasm, but the term is frequently used for limited movement of the jaw from any cause and usually refers to temporary limitation of movement.
18.
Signs and symptoms of a submandibular space infection might include trismus ( difficulty opening the mouth ), inability to palpate ( feel ) the inferior border of the mandible and swelling of the face over the submandibular region.
19.
Clinical signs of PEM are variable depending on the area of the cerebral cortex affected and may include head pressing, dullness, opisthotonos, central blindness, anorexia, muscle tremors, teeth grinding, trismus, salivation, drooling, convulsions, nystagmus, clonic convulsions, and recumbency.
20.
Other symptoms may include loose teeth ( teeth on either side of the fracture will feel loose because the fracture is mobile ), numbness ( because the inferior alveolar nerve runs along the jaw and can be compressed by a fracture ) and trismus ( difficulty opening the mouth ).
