The Notion of Platform-Switching in Implants: A Review

Platform switching implies to the mismatch in diameter of the abutment and that of the implant collar or in particular, use of the abutments with lesser diameter on a greater diameter implant collar. Platform switching was proposed as a process to improve long-term bone maintenance around implants. The clinical applications of platform switching are multiple, and all indicate better long-term predictability in implant therapy by allowing preservation of the peri-implant hard and soft tissue with time. In this review, the influence of platform switching on various other factors affecting crestal bone loss around implants has been discussed. Keywords: platform switching, implant abutment junction, inflammatory connective tissue zone, osseointegration