Graduated with honors in Dentistry at UNAM, (National University of Mexico), in 1985. He studied a Periodontics Specialty (1985) / Master’s degree in Dentistry (1985-1886)
Professor of the Postgraduate Division of Dental School UNAM (1987-2004) Founder of Implantology Department at the PDDS UNAM (1990)
Chairman of Implantology Department at the PDDS UNAM(1991-1997) / President of the Academy of Periodontics in Mexico City(1989-1990) / Member of the Mexican Dental Association / American Academy of Periodontology
Academy of Osseo integration and The Medical Association of Medica Sur Hospital(1999)
Dr. Sierra is the author of several scientific papers related to Periodontics and Dental Implantology, Co-author of “Esthetic Basis for Osseo integrated Implant Rehabilitation”, Ed. Artes Medicas, 2006. He focuses only in Periodontics and Implant Dentistry and has given multiple lectures in Mexico, Chile, Panama, Ecuador and the United States.
Dr. Sierra was awarded for 15 years as professor and founder of the Implantology Division at UNAM, the Mexican Dental Association, and “Lifecore Biomedical” as Scientific Advisor. Member of the ICOI, International Congress of Oral Implantologists