13 month old with flaking enamel on two teeth? What is it? What to do?

[HappyMonkey]

I'm freaking out and will make an appointment this week with our dentist. I had noticed in the last week two of my daughters teeth looked strange (sort of yellow). They looked normal before.

I finally got in her mouth and had a good look, and much of the white enamel on the two teeth on each side of her top two teeth seems to have flaked off leaving a very rough material underneath. I'm not 100% sure but I think it's on the back too.

What is this and what kind of treatment can I expect?

They are not cavitied yet, but I think being so exposed would be at such high risk.

Help! Any ideas?

[su.wei]

I am going through this with my 15 month DD right now. The dentist she originally saw said it is the start of Early Childhood Caries. He referred us to a Ped Dentist (who we have yet to see). I don't have much more information than that, but I recommend reading some of the threads here on Tooth decay and ECC.  

Personally, we have started using a TINY TINY TINY amount of flouride toothpaste (childrens) 2x's a day. We brush with water after she eats, and also use xylitol wipes. I am now looking into ordering MI-paste as well.