I need to remove some implants that have varying degrees of bone loss and are: 1. Integrated with poor prosthetic placement. 2. Failing with peri-implantits but still solid. 3. Flowered with peri-implantitis near v3 nerve. I do not want to cause damage to the surrounding hard or soft tissue. I plan on removing the implants and then grafting the defects as appropriate. I have used trephines in the past to remove osseointegrated implants. I have not had to remove many of these and I have had experience in removing failing sub-periosteal impants and blade implants as an oral maxillofacial surgeon. I would like the expertise and finesse of my implant colleagues to add to my surgical toolbox and to learn from those with more experience.