https://www.drbicuspid.com/dental-hygiene/oral-systemic-link/brain/article/15770603/caries-gum-disease-may-be-tied-to-increased-stroke-risk?fbclid=IwY2xjawOAGoVleHRuA2FlbQIxMABicmlkETA2Vm5zR2N2S055eENOQ0lMc3J0YwZhcHBfaWQQMjIyMDM5MTc4ODIwMDg5MgABHtPhbYRWwzBSQ_rxqxEMd4IJUk9fqr-ckTIz68oZz2uBcc4pZeqdAs1PQGae_aem_8ia6Bxo_bcnTgQiRlCybrg
https://www.sciencedaily.com/releases/2019/05/190523111357.htm