Part 9: Masseter & Temporalis Assessment. If the muscles are overworking, the system is under stress. The masseter and temporalis muscles are often where compensation shows up first - tightness, tenderness, hypertrophy, fatigue. These are not random findings. They are signals. When these muscles are constantly active, it tells you the jaw is not in a stable position. Muscles don’t create the problem. They respond to it. If you’re not assessing muscle activity, you’re missing one of the clearest

Painful, clicking jaw? Doctor explains TMJ Dysfunction! | Causes, symptoms and treatment