Toothache appeared in my back bottom teeth today, I had a look and realised my teeth are in awful condition. When I smile they look fine but when you look in my mouth and look at the tops there's small black spots on the front ones getting bigger and bigger as you go further back. I googled it and it's tooth decay. I'm 24 and nearly all my teeth are decaying. Crying at how bad it is and I didn't realise. I admit I could brush my teeth more and do sometimes get into bed and realise I've forgot and not bother, but I do brush them most days. I haven't gone to the dentist in two years though and I don't floss. This is going to cost a fortune. 