2003.04-2007.03 Medical practitioner, Oral and Maxillofacial Surgery, Kyushu University Hospital. 2007.04-2012.03 Associate professor, Oral and Maxillofacial Surgery, Kyushu University Hospital. 2015.01-present Principal Investigator, OBT Research Center, Faculty of Dental Science, Kyushu University. 2024.01-present Professor and Chairman, Section of Oral and Maxillofacial Surgery, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University. Vice Director, Dental Maxillofacial Center