Quote:
Originally Posted by Scooby Snacks
I wondered why the cavity didn't show up on X-ray but he could visualize it with the naked eye.
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There are tiny cavities that don't yet show on x-ray, but a dental instrument called an explorer can be used to probe tooth surfaces to detect them. You know when the dentist is poking around in your mouth with a sharp instrument? That's what the dentist is doing, looking for tiny cavities with an explorer.
They may be visible as well.