Peri-implant inflammation is still a frequent complication in dental implantology despite highly developed surgical techniques and implant components. The development of peri-implant inflammation may not only have post-implantological causes, but pre-implantological factors also play a role. In addition to the design of the prosthetic restoration, correct planning of the implant position and surgical preparation of the implant site are particularly important for the long-term success of dental implants. This paper deals with these pre-implantological factors with special emphasis on implant planning, hard and soft tissue management and navigated implant placement, taking into account current relevant literature. Keywords: hard and soft tissue management, navigated implantation, peri-implantitis, pre-implant procedure