Several months ago I had a filling placed. It was fine at the time, but then a few weeks later the tooth became sensitive to cold. Do I need to replace the filling?

Anthony S.-Bache, OK

Anthony,

When a tooth feels fine immediately after a new filling is placed, but then becomes sensitive later, that usually means that there are bacteria from the original decay that had penetrated into the pulp of the tooth. Generally, you wait it out and hope your normal body defenses kick in and deal with it.

The key as to whether you need to do anything will depend on if the sensitivity is getting better or not. If the sensitivity is improving, then you probably don’t need to do anything. If, however, the sensitivity is getting worse, then it is possible you will need to get a root canal treatment. If so, you’ll also need a dental crown.

This blog is brought to you by Gilbert dentist Dr. Brandon Schmidt.