Pain in my teeth that comes and goes. what could this be?

See your dentist: Pain that comes and goes could have a number of causes. Keep a log of when the teeth hurt, what triggers the pain (hot, cold, biting) and the characteristic of the pain (dull, sharp, throbbing, etc.). Present all the information to your dentist to help him diagnose your problem.

SEE Dentist ASAP: The cause may be something minor and easily addressed or it may be a major problem. It is very important to see your dentist soon who will perform thorough examinations and take radiographs (x-rays) to determine the best course of treatment.