Juan D. Villarreal is the president of Harlingen Family Dentistry, one of the largest dental organizations in the United States. He has exercised in this area for more than 17 years and his success is highly debt to the application of L. Ron Hubbard’s Management Technology in his practices. Villareal is also the secretary for the Texas State Board of Dental Examiners, an organization that has the responsibility of writing and enforcing the rules and regulations for the practice of dentistry.