1. Department of Reconstructive Dentistry and Gerodontology, School of Dental Medicine—ZMK Bern, University of Bern, 3010 Bern, Switzerland
2. Division of Restorative Dental Sciences, Clinical Sciences Department, College of Dentistry, Ajman University (AU), Ajman City P.O. Box 346, United Arab Emirates
3. Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai P.O. Box 505055, United Arab Emirates
4. Prosthodontics Unit, Department of Preventive and Restorative Dentistry, College of Dental Medicine (CDM), University of Sharjah (UoS), Sharjah P.O. Box 27272, United Arab Emirates