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Marijuana Use Linked to Increased Gum Disease Risk

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Frequent cannabis users exhibit key indicators of periodontal disease in new study in AAP journal
Posted: December 5, 2016
Edited by Dentaltown staff

CHICAGO—Researchers have found that frequent recreational cannabis use—including marijuana, hashish, and hash oil—may be associated with elevated risk of periodontal disease.

When compared to study participants who used cannabis less regularly, those who had used it at least once a month for a year demonstrated increased indicators of mild, moderate, and severe periodontal disease. The study is featured in the Journal of Periodontology, which is published by the American Academy of Periodontology (AAP). 
        
In the report, titled “Relationship Between Frequent Recreational Cannabis (Marijuana and Hashish) Use and Periodontitis in Adults in the United States: NHANES 2011-2012,” participants who identified as frequent users of recreational cannabis demonstrated an average of 29.2 sites around the teeth with periodontal pocket depths of greater than or equal to four millimeters; 24.8 sites with pocket depth of greater than or equal to six millimeters; and 24.5 sites with at least eight millimeters of pocket depth. Study participants who reported to less frequent cannabis use indicated an average of 22.3, 19.2, and 18.9 sites respectively. 

Pocket depths are critical indicators of periodontal disease, measuring the space between a tooth and surrounding gum tissue. Healthy attachment of gum tissue, which should fit snuggly around a tooth, measures between one to three millimeters in depth. Pocket depth measurements indicative of disease can range between three to five millimeters deep (mild periodontal disease) to more than seven millimeters deep (severe periodontal disease).
  
“At a time when the decriminalization of marijuana use is becoming more common in the United States, users should be made aware of the impact that any form of cannabis can have on the health of their gums,” said Dr. Terrence J. Griffin, president of the AAP. “There are a number of risk factors that contribute to the development of periodontal disease, and this report suggests that cannabis use may be one of them. Patients should notify their periodontists of all known risk factors to ensure timely diagnosis and appropriate treatment.”

Data for this report—which assessed a nationally representative sample of U.S. adults between age 30 and 59—were collected as part of the National Health and Nutrition Examination Survey (2011-2012), administered by the Centers for Disease Control and Prevention (CDC) in collaboration with the AAP. The AAP and the CDC have worked together since 2003 to determine periodontitis prevalence in the United States, finding that nearly half of all U.S. adults age 30 and above have some form of periodontal disease.
 
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