Audience; from right to left: F. Maspero (Metalor Dental AG), J. Elbel (Degradable Solutions AG), P. Wirth (Synthes Bettlach), J. Lemaître (EPFL, SSB president), M. Bohner (organizer of SSB 2006; SSB secretary; partly hidden), L. Reclaru (PX Holding SA; organizer of SSB 2007), H. Lüthy (University of Basle, member of SSB executive committee; partly hidden), J-M. Meyer (University of Geneva, honorary member of the SSB; partly hidden).