What causes the pain when

Doc Spock | 10:48 Mon 10th Sep 2007 | Body & Soul

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silver foil touches a tooth filling ?

nasal mucus

Why does our throat get dry

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4gottenabout

dont know have never had a filling, and I wouldnt even try it if I did

tiny e.a

blah

RATTER15

I have actually asked this question before but cant remember the answer!!

Enlighten me please!! you miserable old goat!!

Doc Spock

Question Author

Sorry for delay Ratter.

When two different metals are seperated by a conducting liquid, a current will flow between them. In this case, Foil and Amalgum seperated by saliva, result small current whcih aggravates the nerves.

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