Q. approx 5 yrs ago I had a root canal and crown put on my lower “canine” tooth. I was referred to an endodontist for re-treatment root canal and he diagnosed it as extra canal invasive resorption and chronic apical periodontis. He advised that I have the tooth extracted because I would eventually lose it and get an implant. How would the extraction be done? Would they have to cut the crown off first then extract the tooth, or can they extract the tooth with the crown on it? Thank you,