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Why does tin foil hurt your teeth when you bite it?


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11 replies to this topic

#1 of 12 OFFLINE   Inspector Hammer!

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Posted January 24 2008 - 09:46 PM

Just a random question to give you guys something to do. Posted Image

I did this once as a kid and YOW! It hurt! If you have never done it don't, you'll regret it, trust me. Posted ImagePosted Image

I've always wondered why it does that and this is the perfect place to ask. Hey, there's a topic about a kid raping a dog so I think that at this point anything goes. Posted Image
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#2 of 12 OFFLINE   Clinton McClure

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Posted January 24 2008 - 10:59 PM

Perhaps this explains it John. Ouch!

#3 of 12 OFFLINE   Inspector Hammer!

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Posted January 25 2008 - 12:24 AM

That explains it...yikes! Posted Image
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#4 of 12 OFFLINE   RickER

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Posted January 25 2008 - 02:02 AM

Damn, that was actually interesting. But all this time i thought you were supposed to wear the foil on your head, not in your mouth!

#5 of 12 OFFLINE   Alex-C

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Posted January 25 2008 - 04:54 AM

Quote:
Some dental amalgams contain up to five dissimilar metals. Galvanic action between the metals different electrical potentials creates a electric cell in the tooth, which can generate currents of up to 10 microamps, a huge spike over normal body nerve currents of 3 microamps.

Duh ! You mean you didn't know that ? Geez ! Everyone knows that !
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#6 of 12 OFFLINE   BrianShort

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Posted January 25 2008 - 02:42 PM

So if I don't have any fillings, it shouldn't hurt?

#7 of 12 OFFLINE   Adam Lenhardt

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Posted January 25 2008 - 02:45 PM

Quote:
Originally Posted by Inspector Hammer!
Why does tin foil hurt your teeth when you bite it?
The real question is, why are you biting tin foil?Posted Image

#8 of 12 OFFLINE   Inspector Hammer!

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Posted January 25 2008 - 08:45 PM

Quote:
Originally Posted by Adam Lenhardt
The real question is, why are you biting tin foil?Posted Image

LOL, who knows, I was a kid, why do kids eat paste, why do kids eat Play-Doe, why do kids eat anything? Because it was there. Posted Image
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#9 of 12 OFFLINE   troy evans

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Posted January 25 2008 - 09:41 PM

When I was a kid I would take tin foil and mold it to my face. Made a great likeness mask of my features. Used to be fun to play as Destro when we played G.I. Joe as kids. My friends had water guns.......I threw rocks Posted Image Ah, the good ol' days.
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#10 of 12 OFFLINE   Kevin T

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Posted February 01 2008 - 06:39 AM

i used to have several metal fillings and couldn't chew tin foil due to the pain (as if chewing tin foil is a hobby of mine). my current dentist replaced all my fillings with porcelain. it looks a lot better and now i can check on tin foil without a problem. yay!

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#11 of 12 OFFLINE   Malcolm R

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Posted February 01 2008 - 07:09 AM

Quote:
Originally Posted by Kevin T
i used to have several metal fillings and couldn't chew tin foil due to the pain (as if chewing tin foil is a hobby of mine).
Yeah, I don't understand why anyone is chewing on tinfoil in the first place.
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#12 of 12 OFFLINE   Joseph DeMartino

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Posted February 01 2008 - 07:34 AM

Quote:
Yeah, I don't understand why anyone is chewing on tinfoil in the first place.

It isn't a matter of chewing tin foil. John phrased it correctly when he asked about biting (I might have said, "Biting down on") tin foil. This is less of a problem in an age where cling wrap and vacuum sealers rule, and where the foil wrapping on gum is all paper-backed, but it used to be common for stray bits of tin (aluminum) foil to get stuck to food. Foil used to stick to sugared gum especially (geez, do they even make gum with sugar anymore? Posted Image.) If you missed even a tiny speck when you unwrapped a stick you could get a very unpleasant surprise the second or third time you bit down on it to soften it. I've also had foil get stuck into folds in frozen meat or chicken then get "cooked closed" into an invisible pocket, waiting to ambush the unwary diner. So it isn't usually a matter of deliberately chewiing on the stuff.

Not that chewing never happens. Posted Image Kids discover this by accident, generation after generation. And, kids being kids, they often con other kids into chewing on foil as a practical joke. Or they experiment with the pain, the way people pick at scabs or tongue the site where a tooth has been extracted. But mostly this sort of thing happens by accident.

Regards,

Joe


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