Is the roof of your mouth supposed to be black what causes it?

Question

What can i do to get rid of it before tomarrow

Answer 1

Gum disease or smoking and no it should not be black.  

Answer 2

certain medicines like pepto bismol can cause your mouth and tongue to turn black. here... take a look.

http://www.mayoclinic.com/health/black-h...

Answer 3

I have no idea what color the roof of my mouth is, but my dentist doesn't seem concerned whatever it is.

Answer 4

smokeing