Your TMJ disorder appears to be related to the tensed muscles. The first step in management is to relax the muscles. Avoid stress, and clenching your teeth. As the muscles relax, the shape of your face will improve too.
Next Steps
You can take a muscle relaxant Flexon MR twice daily for five days to help relax the muscles. If you do not have decayed teeth or any other dental problem, give a hot water fomentation to the region in front of your ears.
Health Tips
Visit a dentist and get an x-ray done to check the TMJ.