Especialista en Endodoncia 1990 Universidad Autónoma de Guadalajara. Clinical Professor at Center for Dental Trauma and Sport Dentistry USC 2004-2006. Assistant Professor of Endodontics 2006-2011 Loma Linda University. Associate Professor of Endodontics 2011-2014 Loma Linda University. Clinic Director of Endodontics Loma Linda University 2006-2014. Researcher  Center  for Dental Research Loma Linda University School of Dentistry. 2008-2014. Researcher Advanced Imaging and Microscopy Loma Linda Medical Center 2008-2014. Researcher for Advanced Microscopy and Microanalysis, University of California, Riverside. 2006-2014. Researcher Dept of Electrical Engineering-Electrophysics. Viterbi School of Engineering USC, Los Angeles. Published over 25  peer-reviewed papers in Scientific Journals. Author and co-author of 8 book Chapters. Member and Speaker for American Association of Endodontist (USA). Member International College of Dentist (USA chapter). Chair, IFEA Jean-Marie Laurichesse Research Award. Houston Academy of Endodontic (Former President).