1. Department of Oral & Maxillofacial Surgery, Faculty of Dentistry Chulalongkorn University Bangkok Thailand
2. Prosthodontic Dentistry Department, Division of Biomaterials, Faculty of Dentistry King Salman International University South Sinai Egypt
3. Department of Regenerative & Reconstructive Dental Medicine, Division of Oral Health Sciences, Graduate School of Medical and Dental Sciences Tokyo Medical and Dental University Tokyo Japan