| 2006. | 4. | Medical Staff (doctor-in-training) at The University of Tokushima, University Hospital (-2007.3.) |
| 2007. | 4. | Medical Staff (dentistry-in-training) at The University of Tokushima, University Hospital (-2008.3.) |
| 2008. | 6. | Teaching Assitant at The University of Tokushima, Faculty of Dentistry (-2009.2.) |
| 2009. | 4. | Clinical Support Doctor at The University of Tokushima, University Hospital (-2009.12.) |
| 2009. | 6. | Teaching Assitant at The University of Tokushima, Faculty of Dentistry (-2010.2.) |
| 2009. | 11. | Research Assistant at The University of Tokushima, Faculty of Dentistry (-2010.2.) |
| 2010. | 1. | Clinical Support Doctor at The University of Tokushima, University Hospital (-2010.3.) |
| 2010. | 3. | Research Assistant at The University of Tokushima, Faculty of Dentistry (-2010.3.) |
| 2010. | 4. | Clinical Support Doctor at The University of Tokushima, University Hospital (-2011.3.) |
| 2010. | 10. | Research Assistant at The University of Tokushima, Faculty of Dentistry (-2011.2.) |
| 2011. | 4. | Assistant Professor at The University of Tokushima, Institute of Health Biosciences |