Hi Dear,
Welcome to HCM.
Understanding your concern.
Thanks for your query . The symptoms you mention in query is clearly indicating ill fitted crown . The ill fitted crown create misalignment and high point which leads ti incorrect bite . This incorrect bite is real cause for pain in jaw . Due to high point
stress is generated on temporomandibular joint and muscles of mastication.That is why pain occur on opening mouth or eating.
I would suggest you to immediately call the
dentist and fix the appointment for proper examination of the condition.Doctor will examine it physically or order x-ray to find the exact problem and rule out condition like fractured tooth or infection under the crown .
Dentist may adjust the high point by grinding the cusp of crown and prescribe you
muscle relaxant . Dentist will prescribe antibiotics for infection.
For now give warm compresses to affected side , do
physical therapy , avoid hard food and forceful bite . take advil (if not allergic) or
tylenol for pain.
Hope your concern has been resolved.
Best Wishes,
Dr. Harry Maheshwari