Why does touching tinfoil with your teeth, especially when you have fillings, hurt so much?

Question

Why does touching tinfoil with your teeth, especially when you have fillings, hurt so much?

In: Other

Answer 1

Some people experience an extremely cold sensation rather than pain with tin foil, regardless of fillings. This is due to the metal in the foil being very efficient at conducting heat away from your teeth and creating a sudden sense of chill in your teeth. Try it, it’s kinda fun.