Yes, as the title says, I have a cavity. On a molar coming in at the very back of my mouth (they're called twelve year molars or something) there is a black spot there. It's kind of a hole… kind of because the middle of it hasn't come in yet. It hasn't reached anything major where I would need a root cbrown town but I'm still worried that I would have one or my tooth would be removed. Today I checked it and there was a white spot and some of the black of it had gone away. I do not have any idea what the forget happened, there.