TMJ Lockjaw
A Possible Symptoms of TMJ

If you have TMJ Lockjaw is one of the possible symptoms.

Officially, Lockjaw is the term for a seizing up of the jaw that can happen if a person gets Tetanus infection.

It is a really good idea not to get Tetanus.

Having said that, the term lock jaw has slipped into common usage as a term describing TMJ symptoms both of severe muscle tightness and the jaw actually locking in an open or closed position.



TMJ Lockjaw
What is TMJ Lockjaw?

As I said, technically 'lockjaw' is a symptoms of Tetanus.

But "I have lockjaw" has become the common phrase that is uttered after the first time a person with TMJ (TemporoMandibular Joint Disorder) opens their jaw and it 'locks' into some open position.

This is both painful and frightening, and often accompanied by sounds that a person should just never ever hear coming from their jaw structure.

Lockjaw from TMJ is a function of the muscles of the jaw being so tight that they either pull the joint out of alignment, or they are so tight that as you open your mouth, they seize/spasm and lock the jaw in place for some length of time.

One a TMJ dynamic progresses to the point where your jaw starts locking, you can expect to have more and more TMJ jaw pain.


TMJ Lockjaw
What Is The Locking Mechanism?

What makes the jaw lock in a person with TMJ?

As you will find on the main TMJ page, TMJ is a dynamic of ever increasing tightness and pain.

As with all forms of Tendonitis, the muscular structure of the jaw gets more and more tightened, and then this becomes 'normal'. But it's still too tight.


Jaw Locking Open

As the jaw opens, muscles have to lengthen to let it open. If they are too tight, they won't let this motion happen very easily.

If muscles of the jaw are more or less tight than those on the opposite side, the jaw will open at an angle, essentially getting pulled out of alignment.

This can make the jaw bones get pulled out of joint.

If a person opens their mouth and their jaw bone slips out of joint, it can get locked because it is no longer in it's groove.

When this happens, the nervous system freaks out, and tries to protect you by tightening the muscles even more to 'guard' against possible injury. Ironically, this just clamps the bones down tighter into the now out-of-joint joint.

The muscles have to relax some, and/or the bones have to skip back into their groove before the jaw will close.


Jaw Locked Shut

The jaw can also lock in a closed position.

This can happen for two reasons, and usually a combination of both.

1. Muscles can be so tight, clenching and squeezing the jaw so hard, that the nervous system panics and sends the muscles into a severe spasm, which locks the muscles into a contracted state.

They literally won't stop contracting while in this state.


2. The nervous system can be getting signals from an irritated jaw joint(s), such that it is afraid that if the jaw opens just one more time that injury will happen. If the nervous system decides that injury is going to happen, it will do whatever it can to prevent such an injury.

It does this by sending your jaw musculature into an intense spasm, locking the muscles into a contracted state.

TMJ jaw pain creates a feedback loop that creates more tightness, and more TMJ jaw pain.


TMJ Lockjaw
Eliminate TMJ Jaw Pain

You can disrupt the TMJ dynamic and reverse the The Pain Causing Dynamic

There are TMJ exercises that help. Icing the muscles on the outside of the jaw can help, if the muscles on the outside of the jaw are the problem, and you can do TMJ massage on yourself to relax the muscles.

The more you do, the less pain you will have. The less you do, the more pain you will have.

Tired of TMJ jaw pain? Then get to work.







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