A powerful muscle, called the masseter, which moves our jaws open and shut can also be responsible for the pain felt with tooth hypersensitivity to heat, cold and touch. Trigger points can often be found in this muscle, in people with this problem.
The masseter muscle can also cause pain in the front of the face over the areas often associated with blocked sinuses and can be responsible for ear pain with the sound of ‘roaring’ in your ears.
All this can easily be treated with a deep tissue massage to the area. Singers are also able to reach higher notes apparently when this muscle, alongside other jaw muscles, have been worked on.