Teeth - Remineralization & Fillings

[Guest guest]

Just took to the children's dentist in Richmond - they were great, I would definitely recommend them.  Unfortunately he has demineralization (I think this is what she called it) on his back teeth - where the enamel didn't form properly in his first year of life.  He has 3 cavities in these back teeth.  

We are going to try gas and air for the fillings as he was very compliant today with both the checkup and xrays.  Fingers crossed that we don't have to use sedation. My question is does anyone have any recommendations for remineralising teeth?  I see on the internet that this is possible.  The dentist has recommended that a sealant be put on these teeth but I would also like to try to get them healthier.

Also, what type of filling should I be trying to get for him?  What is preferable?  Sorry I have read dozens of ABE posts on this subject but still seem to be pretty clueless. 

Thanks for any info.Darla x