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Brushing your teeth properly could help prevent arthritis, scientists have claimed. Researchers found a link between the bacterium responsible for gum disease and earlier onset of rheumatoid arthritis, as well as faster progression and greater severity of the condition.

The bacterium produces an enzyme which reacts with the residue of certain proteins. Your body recognises these proteins as intruders, leading to an immune attack, say researchers from the University of Louisville’s School of Dentistry.