Smoking may be responsible for more than half of all cases of periodontal disease among American adults - Brief Article

Nutrition Health Review, Summer, 2003

* Smoking may be responsible for more than half of all cases of periodontal disease among American adults. Other factors that might increase the risk, severity and speed of development of periodontal disease include medications, stress, genetics, hormonal changes, and poor nutrition.

(Source: The American Academy of Periodontology, 2000.)