NIDCR: Periodontal (Gum) Diseases:
The National Institute of Dental and Craniofacial Research describes
gum disease and presents an overview of risks and treatments.
http://www.nidr.nih.gov/health/newsandhealth/gumDiseasesPub.asp
MayoClinic.com: Gingivitis:
Symptoms, causes, treatment, and prevention.
http://www.mayoclinic.com/invoke.cfm?id=DS00363
Gum Disease Information:
The American Academy of Periodontology's description of periodontal
(gum) diseases, including gingivitis and periodontitis.
http://www.perio.org/consumer/2a.html
ADA: Gum Disease (Periodontal Disease):
Detection, treatment and, prevention of periodontal diseases, from
the American Dental Association.
http://www.ada.org/public/faq/gums.html
MEDLINEplus Medical Encyclopedia: Gingivitis:
Illustrations, causes, prevention, and treatment, from the National
Library of Medicine.
http://www.nlm.nih.gov/medlineplus/ency/article/001056.htm
Periodontal Health - OHSU:
Overview, symptom and treatment information from Oregon Health and
Sciences University.
http://www.ohsuhealth.com/oralhlth/perio.asp
