I had a crown put on a tooth (left bottom second more back) maybe a year ago. i'm feeling some discomfort when i bite down. any insight?

Return for check up: It is possible you need a root canal. You may have a cracked tooth or the nerve is dying. In either case a root canal may resolve your problem.

You need to be seen: There are a couple of possible reasons for this discomfort. It could be that the nerve within the tooth has become inflamed or the gum tissue and bone surrounding the tooth is inflamed or infected. It is important to be evaluated by a knowledgeable dentist or dental specialist (oral surgeon, periodontist or endodontist).

Early warning system: That's your body telling something's wrong. It can bee the tooth or the hard or soft tissues that surround the tooth. You need a Dentist or Dental Specialist to determine what's wrong, and what the proper course of action should be. Call now before discomfort develops uno significant problem.

Pain on biting ?: Loose crown, recurrent decay, crown fracture, root fracture, nerve inflammation, bruxism and the list goes on and on. You will need to see a dentist to determine cause and recommend appropriate treatment.