2013-present: Professor, Thammasat University, Faculty of Dentistry

2009-2013: Associate Professor, Thammasat University, Faculty of Dentistry

2006-2009: Assistant Professor, Thammasat University, Faculty of Dentistry

1997-2006: Faculty, Thammasat University, Faculty of Dentistry

1992-1997: Faculty, Prince of Songkla University, Faculty of Dentistry

2018-2024: Vice Rector for Research and Innovation, Thammasat University

2020: Acting Dean, College of Interdisciplinary Studies, Thammasat University

2014-2017: Vice Dean for Research, Thammasat University, Faculty of Dentistry