1. Oral and Maxillofacial Surgery Department, Faculty of Dentistry, Universitas Padjadjaran, Bandung 40132, Indonesia
2. Oral and Maxillofacial Surgery Department, Hasan Sadikin Hospital, Bandung 40161, Indonesia
3. Dentistry Department, Faculty of Medical Sciences, Radboud University Medical Center, 6525 EX Nijmegen, The Netherlands
4. Dental Department, Kota Serang Regional Public Hospital, Serang 42124, Indonesia