I was googling articles about periodontal disease and ran across numerous recent and on-going research into links between periodontal disease and RA and Hashi's thyroiditis and there are probably more. Periodontal disease (infected teeth and gums) leaks infection into the blood vessels and causes the liver to release CRP and the blood vessels to line themselves with plaque, causing heart attack and vascular disease. Now they are looking into this type of connection for RA and Hashis and likely sjogrens and others.
NIH The association between Rheumatoid Arthritis and Periodontal disease
WebMD Fixing Gums May Help Rheumatoid Arthritis
NIDCR Looking at the Periodontal-Systemic Disease Connection July 2005 (older but good)
I am using Plax, Waterpick, brush, then rinse. Also on antibiotics and getting things under control. My chest pains are gone and for some reason, some of my vitiligo is going away (it is likely due to hashis doing better). So far, I can do this and hold out hopes it gets me well-er and keeps others, like my sons, from getting some of these problems.