A member asked:

I have recently noticed ridges in the top of my skull close to the back and two indentations at the side and i dont know if this is tmj/something else?

4 doctors weighed in across 2 answers

Not TMJ: TMJ stands for tempromandibular joint. It is the joint that allows our jaw to move. We all have two. TMJ Dysfunction, caused by damage to this joint, results in noise and/or pain in the joint when opening and/or closing our mouth. It does not cause ridges and/or depressions in the skull. This is not "TMJ".

Answered 3/18/2015

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Dr. Paul Grin answered

Specializes in Pain Management

The "ridges": is a normal anatomical structure. This is the place where the specific muscles originate and insert on the bones it is natural that ridges developed. It is normal musculo-scheletal anatomy. TMJ is a Temporomandibular Joint. Best of luck.

Answered 2/24/2016

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