[1] University of Pittsburgh,Department of Oral Biology, School of Dental Medicine
[2] Istanbul University,Department of Prosthodontics, Faculty of Dentistry
[3] University of Zurich,Division of Dental Biomaterials, Center for Dental Medicine, Clinic for Reconstructive Dentistry
[4] University of Zurich,Clinic for Chewing Function Disturbances, Center for Dental Medicine, Clinic for Reconstructive Dentistry