If those aching joints are a result of rheumatoid arthritis, it may be a signal to take extra care of your teeth. I’m Miranda Savioli with your latest health news. A new study finds that treating periodontal disease may decrease joint inflammation in rheumatoid arthritis, or RA. While researchers are not yet saying RA is caused by periodontal disease, they do say the connection is wellestablished. The bacterium that causes periodontal disease secretes an enzyme, and people with RA have high levels of antibodies that may be caused by this enzyme. The study’s authors recommend four major strategies for RA patients fatty.