Members of working group. (a) Insertion depth/Implant–abutment connection. Chairperson: Gil Alcoforado. Secretaries: Katja Nelson, Alex Schär. Rapporteur: Frank Schwarz. Participants: Luis Aracil, Thomas Barth, Alfonso Baruffaldi, Jürgen Becker, Stephan Beuer, Claudio Cacaci, Wong Chanchai, Luca Cordaro, Laszlo Csato, Ben Derksen, Rolf Ewers, Manuel Gómez, Hans-Jürgen Hartmann, Helfried Hulla, Peter Hunt, Gerhard Iglhaut, Attila Kámán, Martin Keweloh, Alfons Kiener, Axel Kirsch, Henning Lehmann Bastian, Carlo Maiorana, Piotr Majewski, Ralf Masur, Timothy Patrick McVaney, Andreas Meschenmoser, Werner Millesi, Eric Normand, Toshiyuki Oshima, Frank Palm, Torsten E. Reichert, Lutz Ricken, Robert Sader, José Vincente Sanz, Georg Christoph Scheiderbauer, Alexander Schramm, Vojtech Slezacek, Ralf Smeets, Andres Stricker, Hendrik Terheyden, Wilfried Wagner, Fumihiko Watanabe, Daniel Wismeijer, Manfred Wolf. (b) Platform switching. Chairperson: Thomas Taylor. Secretary: Florian Beuer. Rapporteur: Frank Peter Strietzel. Participants: Karl-Ludwig Ackermann, Rodrigo Andrés Garcia, Isaac Angel, Mario Beretta, Sven Marcus Beschnidt, Sergio de Paoli, Kerem Dedeoglu, Antoine Diss, Fernando Guerra, Christian Hammächer, Arndt Happe, Frederic Hermann, Detlef Hildebrand, András Huszák, Matthias Kern, Gerald Krennmair, Yasemin Kulak Ozkan, Jan Märkle, Marc Mongeot, Gerhard Neuendorff, Selim Pamuk, Françoise Peters, Mariano Sanz Alonso, Paul Sipos, Michael Stimmelmayr, Maciej Stupka, Peter Thoolen, Carsten Urbild, Pieter van Elsas, Stefan Wolfart.