Zooming in on a tooth as close as possible
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Stumble ThisThis video guides you through the composition of the enamel in your teeth through various levels of magnification all the way down to the atomic structure.
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Wisdom teeth are notorious for their extremely variable morphology, but my first impression was that this was not a human tooth - possibly a canine molar. (That is, a dog's molar, as opposed to an "eye tooth" molar.) I'm not saying it couldn't be human, but it wasn't my first guess.
I also take issue with the oversimplified description of tooth decay etiology. It's not that decay happens because too much bacteria gets "in the tooth", but bacteria metabolize sugar and produce acid, which dissolves the enamel. Specifically, the acid produced allows demineralization of the hydroxyapatite, leading to weakening and collapse of the crystal structure and cavitation. (Thus, a "cavity".)
You could have all the bacteria in the world in and around your teeth, but if you never gave them any "fermentable carbohydrates" (sugars), you'd never get a cavity. Periodontal disease, maybe.
Yes, my version above is a lot more wordy, but it's summarized as "bacteria use sugar to make acid, which dissolves the enamel."
Automatic upvote because I'm a dentist, but there were a couple of things that stuck out.
Wisdom teeth are notorious for their extremely variable morphology, but my first impression was that this was not a human tooth - possibly a canine molar. (That is, a dog's molar, as opposed to an "eye tooth" molar.) I'm not saying it couldn't be human, but it wasn't my first guess.
I also take issue with the oversimplified description of tooth decay etiology. It's not that decay happens because too much bacteria gets "in the tooth", but bacteria metabolize sugar and produce acid, which dissolves the enamel. Specifically, the acid produced allows demineralization of the hydroxyapatite, leading to weakening and collapse of the crystal structure and cavitation. (Thus, a "cavity".)
You could have all the bacteria in the world in and around your teeth, but if you never gave them any "fermentable carbohydrates" (sugars), you'd never get a cavity. Periodontal disease, maybe.
Yes, my version above is a lot more wordy, but it's summarized as "bacteria use sugar to make acid, which dissolves the enamel."
The video should had showed cavitities zoomed in.
"Beyond this nothing more is visible... for the moment. Oh wait, there's Rottenseed's penis."
...I was cold.
Though... we have yet to actually see any... anywhere.. in the microscopic or macroscopic universe.
>> ^Edgeman2112:
Ok, but what does my tooth look like after I eat Lucky Charms? Good luck with that one, "science."