Q: How do you tell if a client is clenching the jaw when producing a target phoneme? The best way to determine if a client is clenching is to palpate the masseters. Do this on yourself first to learn the feeling. Place your fingertips on your masseters and then clench. Do you feel the bulge? Now do this with your client. If the jaw is clenching you will feel the muscle belly bulge. If it isn’t, then you won’t.
Identifying Jaw Clenching
By Pam Marshalla