1. Private Clinic for Oral- and Maxillofacial Surgery Lienz Austria
2. Department of Cranio‐, Maxillofacial and Oral Surgery Medical University Innsbruck Innsbruck Austria
3. Department of Oral Surgery and Dental Emergency Care Faculty of Health School of Dentistry Witten/Herdecke University Witten North Rhine‐Westphalia Germany
4. Carinthia University of Applied Sciences Villach Austria