International Society of Oral and Maxillofacial Surgeons: Fellow

Austrian Society for Surgery: Active member

Austrian Society for Oral and Maxillofacial Surgery: Active member

European Society of Temporomandibular Joint Surgeons (ESTMJS): Founding member, President since 2009

American Society of Temporomandibular Joint Surgeons (ASTMJS): International member

TMJ Section der Strasbourg Osteosynthesis Research Group (S.O.R.G.): Chairman since 2008

AO Craniomaxillofacial Teaching Faculty: International member