why is it that only teeth can have cavitys and not any other body part
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It’s not that any other parts of the bodies can’t have cavities… abscesses are pretty similar to cavities in other parts of the body and bones can have osteomyelitis.
They just happen less often since bone isn’t commonly infected due to the immune system and skin covering it. Abscesses can happen, but are also less common because of the immune system response.
Teeth are notably not fully covered by flesh. They’d not work well as teeth then. They’re exposed to things like food as part of their job, and bacteria can grow from that. The bacteria cause the cavities.
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