The huge amount of information available on the World Wide Web can be confusing. The following links are highly recommended for reliability and accuracy. The American Academy of Periodontology The world’s leading authority in Periodontology. The American Dental Association (ADA) ADA ONLINE, the American Dental Association’s Internet site. The American Dental Hygienists’ Association (ADHA) A good source for up to date and reliable information. The National Library of Medicine United States National Library of Medicine. An excellent site for all manner of medical and dental information Dentists/Hygienists | Periodontists | Patients Screening System | Related Links | Contact Us | Home Page