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Tempmandibular Joint Dysfunction: exercise, stretching, neuromuscular therapy

Treatment plans are based off of:
1. TMJ assessment: ROM, muscle testing, trigger point assessment, occlusion pattern

2. Neuromuscular therapy and muscle energy techniques to muscles of mastication

3. 6x6x6 TMJ exercise program

4. Assessment correlation with nutrition and lifestyle, cervical, atlas, shoulder, vision, hearing and breathing assessments

5. Referral (if needed) to a holistic dentist or TCM practitioner

Temporomandibular joint disorder (TMJD, TMJ or TMD), or TMJ syndrome, is an umbrella term covering acute or chronic inflammation of the temporomandibular joint, which connects the lower jaw to the skull. The disorder and resultant dysfunction can result in significant pain and impairment. Because the disorder transcends the boundaries between several health-care disciplines — in particular, dentistry, neurology, physical therapy, and psychology — there are a variety of quite different treatment approaches.

The temporomandibular joint is susceptible to many of the conditions that affect other joints in the body, including ankylosis, arthritis, trauma, dislocations, developmental anomalies, and neoplasia.

Signs and symptoms
Signs and symptoms of temporomandibular joint disorder vary in their presentation and can be very complex. Often the symptoms will involve more than one of the numerous TMJ components: muscles, nerves, tendons, ligaments, bones, connective tissue, and the teeth. Ear pain associated with the swelling of proximal tissue is a symptom of temporomandibular joint disorder.


Muscles
Disorders of the muscles of the temporomandibular joint are the most common complaints by TMD patients. The two major observations concerning the muscles are pain and dysfunction. The dysfunction can present as trismus or limitation of jaw movement ranging from minor to severe. In milder cases, the only representation may be joint sound such as clicking or popping. These symptoms of TMD are often caused by overusage of the muscles of mastication. Common causes include chewing gum continuously, biting habits (fingernails and pencils), grinding habits, and clenching habits.

Most cases of TMJ, however, are not so simple. Deep-space infections with resulting trismus or neoplams about the joint may mimic TMJ dysfunction. Muscle pain can sometimes be associated with trigger points in muscle tissue. These trigger points can be localized by digital palpation, both intraorally and extraorally.[3] This is known as Myofascial pain syndrome.

Any dysfunction of the muscles may cause the teeth to occlude (bite) with each other incorrectly;if teeth are traumatized by this, they may become sensitive, demonstrating one of the many interplays between muscle, joint, and tooth.


Temporomandibular joints
This is arguably the most complex set of joints in the human body. Unlike typical finger or vertebral junctions, each TMJ actually has two joints, which allow it to both rotate and to translate (slide). With use, it is common to see wear of both the bone and cartilage components of it. Clicking is common, as are popping motions and deviations in the movements of the joint. It is considered a TMJ disorder when pain is involved.

In a healthy joint, the surfaces in contact with one another (bone and cartilage) do not have any receptors to transmit the feeling of pain. The pain therefore originates from one of the surrounding soft tissues. When receptors from one of these areas are triggered, the pain causes a reflex to limit the mandible's movement. Furthermore, inflammation of the joints can cause constant pain, even without movement of the jaw.

Due to close proximity of the ear to the temporomandibular joint, TMJ pain can often be confused with ear pain.The pain may be referred in around half of all patients and experienced as otalgia (earache). Conversely, TMD is an important possible cause of secondary otalgia.Treatment of TMD may then significantly reduce symptoms of otalgia and tinnitus, as well as atypical facial pain. Despite some of these findings, some researchers question whether TMD therapy can reduce symptoms in the ear, and there is currently an ongoing debate to settle the controversy.

The dysfunction involved is most often in regards to the relationship between the condyle of the mandible and the disc. The sounds produced by this dysfunction are usually described as a "click" or a "pop" when a single sound is heard and as "crepitation" or "crepitus" when there are multiple, rough sounds.

Teeth
Disorders of the teeth can contribute to TMJ dysfunction.] Tooth mobility and tooth loss can be caused by destruction of the supporting bone and by heavy forces being placed on teeth. Movement of the teeth affects how they contact one another when the mouth closes, and the overall relationship between the teeth, muscles, and joints can be altered. Pulpitis, inflammation of the dental pulp, is another symptom that may result from excessive surface erosion.

Precipitating factors
There are many external factors that place undue strain on the TMJ. These include but are not limited to the following:

Over-opening the jaw beyond its range for the individual or unusually aggressive or repetitive sliding of the jaw sideways (laterally) or forward (protrusive). These movements may also be due to parafunctional habits or a malalignment of the jaw or dentition. This may be due to:

1. Modification of the occlusal surfaces of the teeth through dental neglect or accidental trauma.
2. Speech habits resulting in jaw thrusting.
3. Excessive gum chewing or nail biting.
4. Excessive jaw movements associated with exercise.
5. Repetitive unconscious jaw movements associated with bruxing.
6. Size of foods eaten.