The Importance of Obtaining the Correct Diagnosis for Jaw Pain
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Transcript of Video:
Let’s look at TMJ or TMJ dysfunction (TMJD or TMD). Temporom
The Importance of Obtaining the Correct Diagnosis for Jaw Pain
Learn more: watch the video or read the transcript below
Transcript of Video:
Let’s look at TMJ or TMJ dysfunction (TMJD or TMD). Temporomandibular joint disorder is a condition that can cause popping, clicking, or pain in the jaw. Other symptoms associated with TMJD are headache, ear pain, ringing in the ears, neck pain, shoulder pain, dizziness and nausea.
There is a significant level of confusion regarding this condition, and the person suffering from jaw pain often wonders whether they have a muscle problem, joint problem, or problems with their teeth. Many TMJ patients will visit multiple healthcare providers in their search for an accurate diagnosis and the proper treatment. Unfortunately, this is very common, and the process may take years. In turn, the symptoms may become more severe, money and time are unnecessarily wasted, and the patient may become confused and frustrated.
It is crucial to find a healthcare provider who has strong diagnostic skills and an open mind to that can see issues beyond their own specialty. Once you have a correct diagnosis, your healthcare provider can recommend that you see the proper specialist such as a dentist, an orthodontist, a chiropractor or an oral surgeon.
This image shows the anatomy of the temporomandibular joint. The lower jaw is called themandible. Above the joint is the part of the skull referred to as the temporal bone.The joint where the temporal bone connects to the mandible make up the T and the M of the TMJ. The J is simply the joint. Everyone really has two TMJs, one on each side in front of your ears.
What we’re really talking about here is temporomandibular joint (TMJ)dysfunction. What can become dysfunctional in the temporomandibular joint? There are several conditions that can cause TMJD and its symptoms. Let’s look at them one by one.
As shown, the jaw itself articulates with the temporal bone, and this demonstrates the location of the temporal bone. In between the mandible and the temporal bone is a small fibrocartilaginous disc called the articular disc, which is bonded to the jaw by some ligaments. Popping and clicking can occur if we have a situation where the disc itself becomes disrupted and dislodged from the condyle, or rounded part, of the jaw itself.
Now, you have a situation where the disc can become free floating. Attached to the posterior elements, or the back, of the disc is a material called retrodiscal tissue that produces the synovial fluid which lubricates the joint. This tissue will work to hold the disc in place, but what can happen over time that is the disc can migrate forward and become adhered to the anterior portion, or front, of the temporal bone.
When this occurs, we have a situation where the mandible rotates and translates forward as you open and close it. As it translates forward, it has to climb up and over the disc instead of the disc riding with it. When this happens you will notice that when you initially open your jaw there is no pop but as you open wider, the pop occurs as the jaw slides up and over that disc. Now you understand the first diagnosis, which is disc disruption in the jaw.
A second diagnosis involves the capsule. In the image above, the capsule is illustrated by the thin, light blue area that begins at the back of the TMJ, goes under the condyle, and in front of the muscle. The capsule is the ligamentous envelope that wraps around the joint itself, and the capsule itself can become inflamed. The person can have perfectly normal open and closing of the jaw and they may or may not experience popping or clicking. The problem is not the disc, even if the disc is dislodged, but the capsule itself is inflamed. This tissue is the same ligamentous material that holds our ankle together. When you sprain your ankle, it swells, becomes inflamed and uncomfortable. The same thing can happen in that capsule in the jaw. So, if the person has jaw pain, they may automatically assume they have TMJ or TMJD when they really do not. What they have is ligamentous inflammation of the capsule itself.
The third possibility may involve the retrodiscal tissue which we mentioned previously. The retrodiscal tissue is the structure in the posterior elements of the jaw that connects to the disc. The retrodiscal tissue itself can become inflamed. That will typically happen with people that frequently clench or grind their teeth (called bruxism) while they are sleeping. This contracts the jaw, driving the mandible back up into the temporal bone and squeezing the retrodiscal tissue in between. When the retrodiscal tissue is inflamed, the result is jaw pain.
If the inflammation of the retrodiscal tissue lasts long enough, you will actually start to get adhesions that form in the jaw inside the joint itself. You may have vascularization, or the development of blood vessels, of the adhesions. The trauma that results from these adhesions and scar tissue can also become a source of pain.
The fourth issue we will discuss is problems with occlusion or with the teeth as the tee