Depends: If you mean it is cold or air sensitive when you open, it could be several things. Only your dentist can properly evaluate what is going on. You may have a cavity, sensitive gum line from recession, a crack or fractured tooth. If the pain is just from the movement from your mouth opening, it could be an inflamed gum issue. See your dentist.
Answered 2/25/2014
4.4k views
Dental evaluation : I can't tell you why your tooth hurts when you open your mouth without seeing you in person and doing an exam including some diagnostic exams. See a dentist to find out what is going on with your tooth.
Answered 9/19/2017
541 views
Can't explain: without having a one on one clinical exam and x-rays. See your own dentist to find out why and what to do about it.
Answered 9/20/2017
541 views
3 doctors weighed in across 2 answers
4 doctors weighed in across 2 answers
4 doctors weighed in across 3 answers
2 doctors weighed in across 2 answers
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question