We have now left our teeth in Diet Coke and Coca-Cola for one week now. As you can see the tooth that was in the Coca-Cola is nearly fully black and rotten. The tooth that was in the Diet Coke is badly damaged and a dark grey colour. Our experiment is showing that BOTH type of juice are bad for our teeth – I think we will be sticking to water from now on and keeping juice as a treat every now and again!

We will update you again in another week!