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17 Cards in this Set
- Front
- Back
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What two bones are involved in the TMJ? |
Condyle of the mandible Glenoid fossa of the temporal bone |
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What two movements take place with the TMJ? |
Rotating Translational (sliding) |
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What three muscles elevate (close) the mandible? |
Masseter Medial pterygoid Temporalis |
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What two muscles open the mandible? |
Lateral pterygoid digastric |
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The fluid that provides nourishment and lubrication to the joint is called? |
Synovial fluid |
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The muscles that affect the TMJ are called the muscles of __________________? |
Mastecation |
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What % of the population is affected by TMJ problems? |
5% |
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Name some causes of TMJ disorders. |
Trauma Bruxism Assault Systemic diseases Whiplash Clenching Orthodontics Arthritis |
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Name some symptoms of TMJ disorder. |
Pain (myofacial) or dysfunction Clicking Popping Trismus Malocclusion |
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What symptoms account for 50% of all TMJ disorders? |
Myofacial pain and dysfunction |
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What is the type of internal derangement that can cause limited mouth opening and joint sounds? |
Disk displacement (meniscus) |
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What type of internal derangment causes a bony union between articulating structures of the joint? |
Ankylosis |
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What type of internal derangement causes an open locked or dislocated jaw? |
Hypermobility disorder |
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What is the most common disease to affect the TMJ? |
Osteoarthritis |
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What % of patients with rheumatoid arhtritis have TMJ involement? |
50-75% |
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Name types of treatment for TMJ disorders. |
Pharmacologic (pain & inflammation) Surgical Orthodontic Physical therapy Splints Botox |
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What are the two most common benign tumors of the TMJ? |
Osteochondroma Osteoma |
