>>13272891No. The amount of bacteria entering the bloodstream from gums is also extremely tiny.
>>13272943This is because the pathogenic bacteria travel from the mouth to the gut. Bad gut bacteria has all kinds of dangerous links to dementia, cognitive decline and early aging and death. If you treat your dental problems the risks go away.
It is possible to get a brain abscess from a bad tooth, but you need to be immunocompromised for this to happen, there are many tissue layers between the teeth and the brain, in fact bacteria inside of teeth very rarely even affect neighboring teeth.