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FluffyCloud5 t1_jbdrs0e wrote

No it isn't.

Teeth plaque is a matrix of microbial biofilms, extracellular matrix components, sugar, DNA, and various metabolites.

Plaque that builds up in arteries is typically a mixture of calcium, fibrin, fats, clotting factors and waste components.

Sometimes microbial plaques get bloodborne and can colonise an artery, forming microbial plaques which are dangerous. But they are relatively rare and not the same as normal arterial plaque buildup.