| Re: Teeth should never touch eachother?
Concerning how we are expected to keep the teeth from grinding against one another even when chewing food, a dentist explained to me that there's always enough food between the upper and lower teeth to eliminate most of the enamel-on-enamel wear and tear. That makes sense.
But the teeth do seem to come together when we swallow, because then there's almost no food between the teeth.
As for when we are resting our mouths, and not chewing, I think the idea is that we use the jaw muscles to keep the jaws slightly separated. But that would seem to lead to greater muscle tension. I'm not sure. I do know that, for myself, in a resting position, only the front teeth touch, and that is the tips of the bottom teeth touching the back sides of the top front teeth (because of an overbite).
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