I went to Dr. Whalen after experiencing days worth of pain for one tooth, he is not my regular dentist but was extremely busy to drive down to south Charlotte for their evaluation (now I wish I had) He said I would need a root canal, so that's what he did. Come time for the crown, I told the nurse that I wear a retainer and how I brought it with me. I was right there when the nurse relayed this info to him and he did not respond at all!! He did not care in the least bit about my retainer! Well I go home and of course my retainer no longer fits. Not only that but he made that crown much bigger than it needed to be, so much so that my tongue did not have all the room that it did. All was fine for 8 months, no pain or anything. Then I go back to my regular dentist for a check-up and an infection shows up in root of that tooth. The nurse and dentist were curious to see who have performed the root canal as if he should not be allowed to practice at all! I asked why there is an infection if the tooth is now dead and they said that either all the infection was not removed or cleaned out or that perhaps a file was left behind in a canal. My dentist suggested I go back to Dr. Whalen to be evaluated for an apicoectomy or I could opt for an extraction and implant. I decided on extraction solely because I didn't want Dr. Whalen in my mouth again! Who knows what kind of problems I would have down the road if I did go back.