Questions tagged [teeth]

Hard projections in the mouths of vertebrates used mainly to mechanically digest food. Teeth can also be used for the purposes of defense or obtaining meals, especially in the case of hunting.

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2answers
8k views

Why can't we grow more teeth?

A similar question but about teeth healing themselves is Do teeth have the capacity to heal?. So I understand that teeth have the capacity to heal themselves to a certain degree. It appears to be ...
12
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3answers
13k views

How is the fluoride in toothpaste absorbed?

How is the fluoride in toothpaste absorbed by our body? Does the tooth absorb the molecule directly, or is it absorbed by the mouth? The answers to this question suggest that some materials can be ...
8
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1answer
3k views

Is there any scientific evidence that a human has ever grown a third set of teeth?

This is about the possibility (or lack thereof) for a person to re-grow a new "permanent tooth" or set of teeth, to replace the teeth that grew after their milk teeth fell out. I had earlier seen ...
10
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2answers
2k views

Do teeth have the capacity to heal?

Could a cavity in a human tooth "heal over" or possibly fill back in?
10
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2answers
16k views

Why does it hurt when you take sweets, if you have cavities in your teeth?

When you have cavities in your teeth taking any sweetend drinks or food causes sensitivity or pain. What could be the reason?
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3answers
3k views

Why do we have nerves in our teeth?

Toothache is a useful signal to us as we can visit the dentist who can try to fix any problems with our teeth. But what is the natural biological role of toothache? Does toothache make animals take ...