White spots on teeth?!

White spots on teeth?

I have these white spots on my two front teeth. They are whiter than all of my other teeth. They have been there for a while like a year or so. Sometimes they are less visible, sometimes not there, and most of the time more visible. What is this and how can I get them away for good? thanks.

1 month ago
ok well i am 19 and i have really good dental hygiene actually..brush at least twice a day often three. and i floss at least once everyother day..i use mouthrinse after each brushing. i dont eat candy or anything that contains a lot of sugar for that matter..i am not a fan of sugary foods..so i am not sure of what it is but i will check with the dentist..thanks..

First of all, I highly doubt it is fluorosis. Fluorosis occurs when the enamel (outer portion of the tooth) is formed.(Which is when you still have your baby teeth). Secondly, fluorosis does not "come and go."
If you have allergies, or breathe through your mouth constantly, the front teeth can get severely dehydrated. A persons saliva (spit) is a protective lubricant. As gross as that may sound, its true, its what they taught us in school.
Try drinking plenty of water to keep the saliva flowing, or chewing gum. Better yet, try keeping your mouth closed for longer periods and see if that does not help.
I can not believe a dental hygienist would even suggest that this could possibly be fluorosis!!!

Fluorosis does not "just" appear out of no where. And it certainly does not become visible one day, gone the next. It is a PERMANENT change in the color of the enamel.
Yes, possibly decalcification.