health and medicine question #1789
Kim, a 13 year old female from the Internet asks on January 8, 2004,Q:
When metal scrapes metal such as two spoons, it makes the edges of my teeth feel numb. Why is that?
viewed 14303 times
the answerSorry, but this question has not been answered by our experts yet. If you found this answer useful, please consider
making a small donation to science.ca.