1. AO Clinical Investigation and Documentation, AO Foundation, Dübendorf, Switzerland
2. Research and Development Department, Schulthess Clinic, Zürich, Switzerland
3. Department of Oral and Maxillofacial Surgery, Ludwig Maximilians Universität München, Germany
4. Clinic for Oral and Craniomaxillofacial Surgery, University Hospital Basel, Basel, Switzerland
5. Institute of Radiology Zofingen Hospital, Zofingen, Switzerland
6. Hightech Research Center for CMF Surgery, University of Basel, Basel, Switzerland