Im a 47 year old male with two abscesses.. One on tooth 19 and the other on 30. Both are failed root canals and both cannot have re treatment root canals done. My Dentist wanted to pull both and do implants. I asked for a second opinion and they referred me to a Endodontist. Had an Apico done on 19 and will have one done on 30. They said if I pulled 19 id still have to bone graft wait for 6 mos. If the apico fails can I still do a extract/graft/implant?