The jaw is a complex joint and jaw tightness can range from mildly uncomfortable to very painful and can affect the whole area around the jaw including the neck and head. The various causes of jaw tightness include:
– Temporomandibular (the scientific name for the jaw joint) disorder
– Bruxism (teeth grinding)
– Improper bite (misaligned teeth or jaw).
“Your dentist can help you determine what’s causing your pain and work with you to implement a successful treatment plan to fix it.”
Read more here: https://yourdentalhealthresource.com/what-causes-jaw-tightness/