High Quality Content by WIKIPEDIA articles! Laser-assisted new attachment procedure (the LANAP protocol) is a surgical therapy designed for the treatment of periodontitis through regeneration rather than resection. This therapy and the laser used to perform it have been in use for more than a decade. Developed and refined in Cerritos, California, since 1991 by Dr. Robert H. Gregg II (http://abcnews.go.com/Video/playerIndex?id=4797206) and Dr. Delwin McCarthy to achieve consistently effective and predictable outcomes. The U.S. Food and Drug Administration cleared the LANAP protocol for the treatment of periodontitis, or gum disease, in 2004.