Ok so my two bottom front teeth have been bugging me for about a year now. ( If you go to this link https://secure.ucci.com/images/glossary/anteriorteeth.gif its teeth 24 and 25 and the back of them are a bit brown and # 25 is ever so slightly moveable from front to back ( I men less then 1 mm) The bottom mm of the teeth are white but like cracked white ( not all teh way thru just the surface). What is this from and how serious is my condition? Anyway to reverse what's happening? I didn't floss as much as I should have ( I am now). The first time I felt this pain was about a year ago after I bit into a hard apple. Thanks ( I'm 22 and I'm broke so I can't even got o my dentist yet)