Volume 7: The resorption of periodontal hard and soft tissues adjacent to extraction sockets as a result of remodeling following tooth extraction represents a major treatment challenge in the esthetic zone. To counteract these processes therapeutically, numerous studies have been conducted and various techniques for socket preservation discovered in recent years. This volume presents measures for ridge prophylaxis that take into account the insights gained from these studies, addressing one- and two-stage implant procedures, as well as bridges.