How do you know if you have a dead tooth? I know it chnages colour, how long does it change colour?

It all depends on the tooth, if its a baby tooth or a permanent tooth. I still have some baby teeth that for some reason never had permanents grow in. And they are starting to show signs or rot.

You'll notice a different color, but you'll also notice that its starting to chip, or it starts to develop a hole it in. Your best bet is to get to a dentist.

I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.