The problem with your thinking on this, yardstick, is that the inside of your mouth is EXTERNAL to your body. It's OUTSIDE your skin! There are millions of bacteria inside your mouth you would NOT want living inside your body! We put many things in our mouths we would not want under our skin. Think of what a baby puts in it's mouth. The mouth is a very dirty place! The mouth is also the only place where the skeleton sticks THROUGH the skin.
There is a seal at the gums with a natural flow of fluid from your body out to prevent the movement of bacteria inward... But if that seal is broken, or the gums bleed, you open a superhighway into your body that the bacteria can enter. The surface area of that seal is about the size of the palm of your hand! If it gets compromised, it's a major problem!
The plaques are not unknown, but what starts them and what forms their core is. The "framework" cage that holds the cholesterol and fatty acids could be made up of the dead wirery, entangled bodies of millions of spirochetes that are very tough, attached to the artery and cell walls. These are transparent.
So if I’m understanding you right, swordmaker, you’re saying the plaques, or at least the core of the plaques, are made of tangled masses of spirochete bodies but no one has noticed this fact. Presumably because all the researchers so far have used the wrong kind of microscope. Is this correct?