ADA: Gum Disease (Periodontal Disease) — Detection, treatment and, prevention of periodontal diseases, from the American Dental Association.

American Academy of Periodontology — Provides information about periodontal disease and treatment and a periodontist referral service.

eMedicine Health - Periodontal (Gum) Disease — Consumer health resource center providing information on the causes, symptoms, and treatment of gum disease.

Expert Dental Hygiene For Ultimate Health — Provides periodontal and dental hygiene information for periodontists, hygienists, and other dental practitioners, as well as educational materials and resources for patients.

Graham Smart and Philip Ower's Periodontal Courses — Offering programs and in-practice followups for dental hygienists and therapists. Includes module details, a schedule, information about clinical cases, and a participants' area. Based in the UK.

Gum Disease Information — The American Academy of Periodontology's description of periodontal (gum) diseases, including gingivitis and periodontitis.

International Institute of Periodontology — Offering a two-day practical and theoretical periodontal microbiology course and a one-day ring study session. Includes sites and dates, and a pre-registration form. [French and English]

NIDCR: Periodontal (Gum) Diseases — The National Institute of Dental and Craniofacial Research describes gum disease and presents an overview of risks and treatments.

Oral Environment Online — An online resource for information about saliva, plaque, general microbiology, oral microbiology, caries, periodontal disease and plaque control.

Perio Reports — An eight page newsletter published six times each year. It contains summaries of periodontal research of particular interest to clinicians.

Quality Dentistry — Information about normal gums as well as periodontal disease and its treatment including root planing and surgery.

The Gummy Smile Project — The Gummy Smile offers periodontal information for those that think they have short teeth or that their gums have grown over their teeth.