Naked Science Forum

Non Life Sciences => Chemistry => Topic started by: Daniel Migneault on 04/02/2009 03:30:02

Title: Why does foil touching a tooth filling taste strange?
Post by: Daniel Migneault on 04/02/2009 03:30:02

Daniel Migneault  asked the Naked Scientists:
   
Hi,

We would like to know what causes the weird sensation we get when we (accidentally, we assure you) get foil in our mouth and it touches our tooth fillings.

Thanks for your help,

Julie and Daniel
Gatineau, Canada

What do you think?

Title: Why does foil touching a tooth filling taste strange?
Post by: lightarrow on 04/02/2009 08:23:48

Quote from: Daniel Migneault  on 04/02/2009 03:30:02

Daniel Migneault  asked the Naked Scientists:
   
Hi,

We would like to know what causes the weird sensation we get when we (accidentally, we assure you) get foil in our mouth and it touches our tooth fillings.

Thanks for your help,

Julie and Daniel
Gatineau, Canada

What do you think?

A little current passes through your tooth nerve, because of Volta Effect:
http://en.wikipedia.org/wiki/Volta_potential
http://ppp.unipv.it/Collana/Pages/Libri/Saggi/Nuova%20Voltiana3_PDF/cap5/5new.pdf

The current in the nerve is perceived as displeasing/pain.

Title: Why does foil touching a tooth filling taste strange?
Post by: thedoc on 10/02/2009 19:02:36

Listen to the answer to this question on our podcast. (http://www.thenakedscientists.com/HTML/podcasts/show/2009.02.08/)