Woke up one morning with a back tooth that was really sensitive to hot and cold. I was told I would someday need a root canal on that tooth, but I had been putting it off because of a bad experience before. So, I called Dr. Biggs office to see if they could get me in. They got me in the next day and it was fantastic... if you could use that adjective to describe a root canal. I hope I don't need another root canal, but if I do I'm going back.