Career History
- Chair, Department of Biomedical Sciences, Texas A&M University College of Dentistry (2012-2016)
- Professor, Department of Biomedical Sciences, Texas A&M University College of Dentistry (2004-present)
- Director, Graduate Program, Department of Biomedical Sciences, Texas A&M University College of Dentistry (1996-2009)
- Associate Professor, Department of Biomedical Sciences, Texas A&M University College of Dentistry (1996-2004)
- Graduate Faculty, Texas A&M Health Science Center (1996-present)
- Associate Professor, Department of Biomedical Sciences, Texas A&M University College of Dentistry (1993-1996)
- Associate Professor, Graduate Faculty, Baylor University (1993-1996)
- Assistant Professor, Department of Biomedical Sciences, Baylor College of Dentistry (1992-1993)
- Assistant Professor, Graduate Faculty, Baylor University (1987-1993)
- Assistant Professor, Department of Anatomy, Baylor College of Dentistry (1986-1992)
- Adjunct Assistant Research Scientist, Center for Human Growth and Development, The University of Michigan (1986-1989)
- Consultant, Department of Orthodontics, The University of Michigan (1986-1989)
- Assistant Research Scientist, Center for Human Growth and Development, The University of Michigan (1984-1985)
- Adjunct Assistant Research Scientist, Department of Orthodontics, The University of Michigan (1985)
- Lecturer, Department of Anatomy and Cell Biology, The University of Michigan (1984-1985)
- Instructor, Department of Anatomy and Cell Biology, The University of Michigan (1980)
- Teaching Associate, Department of Anatomy, University of Illinois Medical Center (1979-1980)