text: my dentist wants to remove a tooth because he says there it not enough tooth structure left to build upon.? the tooth has already had a root canal, and has a post.  the bone is healthy.  i am looking for an alternative to pullng the tooth -- some new form of build-up? in dentistry, we try to save a tooth if possible. extraction is the last resort (if a patient is willing to try other routes, as you have done). sometimes, even with the best dentist and the best intentions, a tooth is nonrestorable. ideally, you should have had a crown on this tooth right after the root canal, (was this done/recommended) this is a way to avoid loosing more strucure. if a tooth is broken or decayed below the gum line it typically cant be saved. i cant say for sure what i would do if you were my patient as i do not know the entire history and cant see your tooth. if you fear you are being told this because for some reason this dentist can't fix your tooth or just doesnt want to for some reason, i would recommend a second opinion. find a friend who is happy with their dentist and make an appointment for a consultation regarding this tooth. good luck!