1. Resident of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia.
2. Undergraduated Student of Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia.
3. Staff of Oral and Maxillofacial Surgery, Faculty of Dental Medicine, Universitas Airlangga, Surabaya, Indonesia.