1. Department of Clinical Dentistry; Smile Care Clinic Pvt Ltd; Mumbai India
2. Rijksuniversiteit Groningen, University Medical Center Groningen, Center for Dentistry and Oral Hygiene; Department of Fixed and Removable Prosthodontics and Biomaterials; Groningen The Netherlands
3. Department of Oral-Maxillofacial Surgery, Prosthodontics and Special Dental Care; St. Antonius Hospital; Nieuwegein The Netherlands