- ADA: Gum Disease (Periodontal Disease) - Detection, treatment and, prevention of periodontal diseases, from the American Dental Association.
- AirPerio - Presents information about a new program to treat periodontal gum disease. Combining three therapeutic elements that work together for complete healing. Details about the DNA test, treatment and hygiene.
- eMedicine Health - Gingivitis - Consumer health resource center providing information on the causes, symptoms, and treatment.
- eMedicine Health - Periodontal (Gum) Disease - Consumer health resource center providing information on the causes, symptoms, and treatment of gum disease.
- Gum Disease Information - The American Academy of Periodontology's description of periodontal (gum) diseases, including gingivitis and periodontitis.
- Gum Disease Information Bureau - Advice on diagnosis and treatment of gum disease, gingivitis, periodontitis and mouth ulcers.
- MayoClinic.com: Gingivitis - Symptoms, causes, treatment, and prevention.
- MedlinePlus Medical Encyclopedia: Gingivitis - Illustrations, causes, prevention, and treatment, from the National Library of Medicine.
- Periodontal Health - OHSU - Overview, symptom and treatment information from Oregon Health and Sciences University.
