From The American Academy of Periodontology:
Gene therapy offers hope for gum disease
Pucker up for Valentine's day with a healthy mouth...

From AAP Patient Page:
Periodontal Therapy-Knowing What's Right For You
About Antibiotic Resistance
Extinguish the Tobacco Habit or Watch Your Teeth Fall Out

From Chicago Sun Times, Health & Fitness:
Flossing may protect heart

From Harvard Health Letter
Bad Breath
Is gum recession a problem?
Which is the best toothbrush?