Jaw Locking

Are Jaw Locking and TMD Related?

Jaw locking, also known as trismus, is a condition in which the jaw becomes locked in a certain position and is unable to move. Jaw locking can be a symptom of TMD (temporomandibular disorder) although not all cases of jaw locking are caused by TMD.


Jaw locking can occur due to a variety of causes, such as injury to the jaw or TMJ, inflammation of the joint, or muscle spasms. In some cases, jaw locking may be caused by a specific disorder known as internal derangement of the TMJ. This disorder occurs when the disc that cushions the joint moves out of place or becomes damaged, causing the jaw to lock.

TMD is a broad term used to describe a group of disorders that affect the TMJ and the muscles that control jaw movement. TMD can cause a variety of symptoms, including pain, limited jaw movement, and jaw locking. However, not all cases of jaw locking are caused by TMD. Other conditions such as arthritis, osteoarthritis, dislocated jaw, or even tumors can cause jaw locking.


If you are experiencing jaw locking, it's important to see a healthcare professional who specialized in TMD, they can examine your jaw and perform any necessary tests to determine the cause of your symptoms and provide an appropriate treatment plan.

How can Dr. Smitherman help me get my jaw unlocked?

If you are experiencing jaw locking or trismus as a symptom of TMD (temporomandibular disorder), seeking help from a TMD professional like Dr. Smitherman can be beneficial in getting your jaw unlocked. Dr. Smitherman is a dentist trained and experienced in the diagnosis and treatment of TMD.


Dr. Smitherman will perform a thorough examination of your jaw and will also take a medical history, conduct a physical examination, and may use imaging such as an X-ray or CT scan to evaluate the status of your jaw and TMJ. She will be able to determine the underlying cause of your jaw locking and provide an appropriate treatment plan.


Depending on the underlying cause of your jaw locking, Dr. Smitherman may use a variety of treatments to help unlock your jaw, such as:


  • Manual manipulation: A gentle manipulation of the jaw can help to reposition the disc and unlock the jaw.
  • Injections: injections directly into the TMJs can help create the space necessary for the joint to become unlocked, as well as reduce pain.
  • Physical therapy: Specific exercises and stretches can help to improve jaw movement and muscle strength.
  • Medications: Anti-inflammatory or muscle relaxant medications may be prescribed to alleviate pain and reduce muscle spasms.
  • Oral Appliance: Wearing a custom-made mouth guard or splint while you sleep can help to reposition the jaw and alleviate symptoms of TMD.


It's important to note that jaw locking can be caused by a variety of conditions and the best treatment depends on the underlying cause, so it's always recommended to consult with Dr. Smitherman, so she may evaluate your condition and provide you with the most appropriate treatment plan.

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