I had a botched root canal, with a possible root fracture done by another dentist. Dr. Oster didn't bother to look at it, just sent me to get a root canal. Ended up with a redo root canal, and another one on the tooth behind it. Still had discomfort. Went to an oral surgeon who suggested it might have been a root fracture. Didn't like that Dr. Oster didn't look at it or discuss the possibilities with me.