Trismus
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Overview
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WikiDoc Resources for Trismus | |
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Most recent articles on Trismus | |
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Evidence Based Medicine | |
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Ongoing Trials on Trismus at Clinical Trials.gov Clinical Trials on Trismus at Google
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US National Guidelines Clearinghouse on Trismus
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Definitions | |
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Patient Resources / Community | |
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Directions to Hospitals Treating Trismus Risk calculators and risk factors for Trismus
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Causes & Risk Factors for Trismus | |
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Continuing Medical Education (CME) | |
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Trismus (also known as lock jaw) is the inability to normally open the mouth due to one of many causes.
Common Causes
- Pericoronitis (inflammation of soft tissue around impacted third molar) is the most common cause of trismus.
- Inflammation of muscles of mastication. It is a frequent sequel to surgical removal of mandibular third molars (lower wisdom teeth). The condition usually resolves on its own in 10-14 days, during which time eating and oral hygiene is compromised. The application of heat (e.g. heat bag extraorally, and warm salt water intraorally) may help reducing the severity and duration of the condition.
- Peritonsillar abscess, a complication of tonsillitis which usually presents with sore throat, dysphagia, fever, and change in voice.
- Temporomandibular joint disorder (TMJ)
Other Causes
- Acute osteomyelitis
- Ankylosis of the TMJ (fibrous or bony)
- Condylar fracture or other trauma.
- Gaucher disease which is caused by deficiency of the enzyme glucocerebrosidase.
- Infection
- Local anesthesia
- Needle prick to the medial pterygoid muscle
- Oral submucous fibrosis.
- Radiation therapy to the head and neck.
- Tetanus
Treatment
Treatment requires treating the underlying condition. Additionally, control of symptoms with pain medications (NSAIDs), muscle relaxants, and warm compresses may be used.
References
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
