Searching with google there apparently are health reasons as to why teeth could become sharper but not because of hunger. Things like decay or your teeth being worn away can make them sharper. I also read one comment where someone grew super sharp adult canines, but this growth is apparently rare but normal recrulting in them for lack of a better term being filed. In any event it's impossible your nonhuman and human teeth don't get sharper due to hunger.
Oh i see, so apparently i am fluff because either you believe it to not be possible or you've never heard of it. I AM NOT CLAIMING TO BE VAMPIRE OR SOMETHING. but my teeth do sharpen on their own and grow dull again, which in my book is either a screwed up genetic defect, or i am in touch with my primal side(not likely).
most the time when they get sharp it is because i am hungry, but on other occasions it may be from excitement, or from my sword practice.
So my main problem is this: If you have never heard of something like this, then it automatically makes the person a delusional, wanna be, fluff out for attention. Learn how to be open minded you dolts
Your teeth do not sharpen. Likely your gums recede revealing their shape somewhat more. This happens when malnutrition begins to take effect, which in turn happens when one goes long periods of time without eating.
Likely the rest of your mouth is more sensitive, lending to the impression that they are "sharper."
Nutrition. Eat well, if you can. Gum and tooth sensitivity can often be a sign of Vitamin C deficiency. Get some oranges or vitamins or some other nutritional supplement.
have you spoken with a dentist about this? you should speak with an expert before jumping to the conclusion it's something magical. if you ask me you're imagining it, the mind is good with things like this. teeth don't grow and shrink in the span of a few minutes or days. if you have one or two teeth that are always sharp, don't jump to the magical conclusion either, it could be genetic. in my family, our canines are very pointy, most people have to file them down. speak with a dentist, possibly your doctor.