TMJ Disorders
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TMJ Disorders
WHAT IS THE TEMPOROMANDIBULAR JOINT?
The temporomandibular joint (TMJ) is a joint that slides and rotates just in front of your ear, consisting of the temporal bone (side and base of the skull) and the mandible (lower jaw). Mastication (chewing) muscles connect the lower jaw to the skull, allowing you to move your jaw forward, sideways, and open and close.
The joint works properly when the lower jaw and its joint (both the right and left) are synchronized during movement. Temporomandibular Disorder (TMJ) may occur when the jaw twists during opening, closing or side-motion movements. These movements affect the jaw joint and the muscles that control chewing.
WHAT IS TEMPOROMANDIBULAR DISORDER?
TMJ describes a variety of conditions that affect jaw muscles, temporomandibular joints, and nerves associated with chronic facial pain. Symptoms may occur on one or both sides of the face, head or jaw, or develop after an injury. TMJ affects more than twice as many women than men and is the most common non-dental related chronic orofacial pain.
WHAT CAUSES TMJ?
Normal function for this muscle group includes chewing, swallowing, speech and communication. Most experts suggest that certain tasks, either mental or physical, cause or aggravate TMJ, such as strenuous physical tasks or stressful situations. Most discomfort is caused from overuse of the muscles, specifically clenching or grinding teeth (bruxism).
These excessive habits tire the jaw muscles and lead to discomfort, such as headaches or neck pain. Additionally, abnormal function can lead to worn or sensitive teeth, traumatized soft tissues, muscle soreness, jaw discomfort when eating, and temporal (side) headaches.
WHAT TMJ SYMPTOMS CAN I EXPERIENCE?
- An earache without an infection
- Jaw pain or soreness thatis more prevalent in the morning orlate afternoon
- Jaw pain when you chew, bite or yawn
- Clicking when opening and closing your mouth
- Difficulty opening and closing your mouth
- Locked or stiff jaw when you talk, yawn or eat
- Sensitive teeth when no dental problems can be found
WHAT CAN I DO TO TREAT TMJ?
Most people will experience relief with minor treatment. More severe cases may be treated with physical therapy, ice and hot packs, posture training and orthopedic appliance therapy (splint). Eating soft foods and avoiding chewing gum also help relax the muscles.
IS TMJ PERMANENT?
The condition is often cyclical and may recur during times of stress, good or bad. As the patient, you should be active in your treatment, by being aware of the causes of your jaw problems after seeing a dentist for a diagnosis regime. Make routine dental appointments, so your doctor can check TMJ on a regular basis.
Updated July 1998 Sources: Giblisco, Joseph A. DDS, Charles McNeill, DDS, Harold T. Perry, DDS. Orofacial Pain; Understanding Temporomandibular (TMJ) Disorders. Quintessence Publishing Co., Inc., Carol Stream, Illinois. 1994; E. Mac Edington, DDS, MAGD, ABGD; NIDR, Temporomandibular Disorders, Bethesda, Maryland; Wilkinson, Tom, “New patterns of dental disease; Management of temporomandibular disorders.” Australian Dental Association News Bulletin, No. 246, July 1997.”
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