If you have a stiff or tight jaw, you might be unknowingly grinding your teeth. This is a condition known as bruxism and it should be diagnosed by a dentist. One of the most common causes is top and bottom teeth that are misaligned.
Key points about bruxism:
– You may have unexplained headaches.
– Your jaw and even the surrounding teeth could become sensitive.
– You may have temporomandibular joint (TMJ) disorder.
“Teeth grinding can have numerous causes, with the most common being stress and an improper bite.”
Take a more comprehensive look by following this link:
https://yourdentalhealthresource.com/what-causes-jaw-tightness/