why is it that only teeth can have cavitys and not any other body part
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Heh, I have an exam on tooth decay tomorrow.
So, cavities form after your teeth surfaces are demineralized. (Sugar is eaten by bad bacteria and broken down into acid. The acid is what causes your teeth surface to be etched away)
Once your protective layer (enamel-hardest substance in the human body) is etched away given enough time, that’s when decays take their toll, and cause cavities if not taken care of.
So to really answer your question:
teeth are exposed in your mouth. bones are not. Cavities form from sugars being broken down. Only teeth are exposed to sugars externally, so that’s why only teeth are susceptible. That’s why sealants on your teeth prevent decay. It covers the teeth surface so it’s not exposed to outside environment.
Tips: try and brush your teeth after meals, as soon as you can. Basically just remove any food debris before it can be broken down. Especially true if you snack frequently. After each meal and no brushing, the food is broken down and small amount of demineralization occurs, before being balanced out. But the more you frequently eat, the more time your teeth are being etched away.
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