1. Siemens Healthcare GmbH , Erlangen, 91052, Germany
2. Section for Oral Radiology and Endodontics, Department of Dentistry and Oral Health, Aarhus University , Aarhus, 8000, Denmark
3. Division of TMD & Orofacial Pain, School of Dentistry, University of Minnesota Twin Cities, MN, 55455, United States
4. Department of Radiology, Medical School, University of Minnesota Twin Cities, MN, 55455, United States
5. Sirona Dental Systems GmbH , Bensheim, 64625, Germany