“Periodontitis is an infectious disease leading to inflammation and destruction of tissue surrounding and supporting the tooth”. Considering: “Anti-Inflammatory Effect of the Endocannabinoid Anandamide in Experimental Periodontitis and Stress in the Rat” and the important “Involvement of the endocannabinoid system in periodontal healing”

http://www.ncbi.nlm.nih.gov/pubmed/22777139