Hi Bryanna..I recently had 3 root canals removed after trying the calcium hydroxide method of detoxifying them (it did'nt work) The holistic dentist cleaned out the periodontal ligament and used an ultrasonic dental drill and ozone water to clean out the sockets. the dentist assured me this was far better than drilling out 1mm of bone. my question is are you familiar with these methods as i want to make sure this has been done well and there are no problems later on when i have zirconia implants.many thanks I find your posts very informative...Bill