Dr Shodjaee Newsletter
Welcome to Dr Shodjaee Newsletter July 2005

 

in this issue

 

TMJ Function

Abnormal TMJ Function

Anterior Displacement Without Reduction

Treatment of TMJ Disorder


 

 

TMJ Function

tmj anatomy

Normal TMJ Function

When the mouth opens, two distinct motions occur in the joint. The first motion is ROTATION around a horizontal axis through the condylar heads. The second motion is TRANSLATION. The condyle and meniscus move together anteriorly beneath the articular eminence. In the closed mouth position, the thick posterior band of the meniscus lies immediately above the condyle. As the condyle translates forward, the thinner intermediate zone of the meniscus becomes the articulating surface between the condyle and the articular eminence. When the mouth is fully open, the condyle may lie beneath the anterior band of the meniscus.

 

 
  Dear Farid,

TMJ (JAW JOINT) DISORDERS It has been estimated that more than 50 million people in Canada and the U.S. suffer from severe headaches. These headaches can be so debilitating that they can adversely affect their ability to work and their relationships with family and friends. Although there can be many reasons for headaches, many headache patients suffer from temporomandibular joint disorders (TMJ disorders). The most common symptoms include: Headaches, Dizziness, Stiffness in jaw joint, Ear aches, Ringing in the ears, Teeth do not touch when biting, Neck pain, Pain behind the eyes, Problem swallowing, Fainting, Shoulder or back pain, Tingling or numbness of fingers, Clicking jaw, Inability to open mouth wide, Clenching/grinding teeth, Worn teeth


 

 
 
  • Abnormal TMJ Function
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    Anterior Displacement With Reduction INTERNAL DERANGEMENT of the TMJ is present when the posterior band of the meniscus is anteriorly displaced in front of the condyle. As the meniscus translates anteriorly, the posterior band remains in front of the condyle and the bilaminar zone becomes abnormally stretched and attenuated. Often the displaced posterior band will return to its normal position when the condyle reaches a certain point. This derangement causes you to hear a "popping" or "clicking" sound in your ear.

      Read on...
     
  • Anterior Displacement Without Reduction
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    In some patients the meniscus remains anteriorly displaced at full opening. Patients with anterior displacement without reduction often cannot fully open their mouths. Sometimes there is a tear or perforation of the meniscus. Grinding noises in the joint are often present. This is a much more severe condition than the "Popping" TMJ. It leads to osteoarthritis of the jaw joint. The joint breaks down and results in a receding chin and protruding teeth as time goes by. If the displaced disc is pressing against the inner ear, you will probably get subjective hearing loss and other ear symptoms.

      Read on...
     
  • Treatment of TMJ Disorder
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    For most patients the TMJ disorder treatment is devided into two phases, 1. Diagnostic Phase 2. Jaw stabilization phase. Often patient needs some Cranial Osteopathy treatment as well to address the balance of the cranium, spine and pelvis with dentition. Please follow the link to do a self-diagnosis for TMJ disorder.

      Read on...
     
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