• Clinical Professor, Department of Fixed Prosthodontics, Baylor College of Dentistry, 1987 – 1993.
• Assistant Professor, Department of Fixed Prosthodontics, Baylor College of Dentistry, 1982 – 1987.
• Occlusion Instructor, Baylor College of Dentistry, 1982 – 1987.
• Course Director, 3rd Year, Department of Fixed Prosthodontics Baylor College of Dentistry, 1986 – 1987.
• Resident, Graduate Program of Fixed Prosthodontics Medical University of South Carolina, Charleston, South Carolina, 1980 – 1982.
• Resident, Division of Occlusion, University of Texas Health Science Center of San Antonio, 1979 – 1980.
• Global Symposium, Implantology Tissue and Regeneration , Biohorizons San Diego California, CA 2008.
• Course Director, Implantology Diplomat, Evangelic University of El Salvador, San Salvador, El Salvador. Central America. 2007 – 2008
• Course Director, Prosthetics in Implantology Diplomat, Lorenzana Dental Center, San Salvador, El Salvador, Central America. 2009

• Resident Fixed Prosthodontics, 1982 – 1983.
• Fixed Prosthodontics, Director of Junior class 1982 – 1987.
• Clinical Instructor of Junior and Senior classes Fixed Prosthodontics, 1982 – 1992.

HONORS

• American Board of Prosthodontics Certified.
• Member National Health Commission of El Salvador 1998-1999.
• Health Care Reform Commission of Congress 1999.
• Salvadorean Dental Society President, 1997 – 1999.
• Omicron Kappa Upsilon – Honorary Dental Society, 1986.