There are many reasons why your tooth can be in pain. However when a tooth is in pain that usually means there could be a serious issue (i.e. caries, fracture, gum infection) affecting the nerves in and around the tooth that should definitely be taken care of sooner rather than later.
Schedule A Dental Exam in Gaithersburg
The first step should be to call your Gaithersburg, MD dentist and set up an exam where the dentist can better target the source of the pain and prepare treatment options for that tooth or area.