Okay, first of all, let me comment on the 'mouth full of fillings.' Unfortunatley, all doctors/dentists are not in the business to help people. Sometimes, a child will have a mouth full of fillings because their dentist pulls/fills/caps or whatever perfectly healthy teeth because the child is on Medicaid and they are sure to be reimbursed. Generally speaking, this does tend to happen to children of under-educated parents or to children whose parents do not speak English. I am not saying that all children on Medicaid have un- or under-educated parents. My kids are on Medicaid, and I would never say that about myself! LOL.
As for the spots on his teeth, my first thought was flouride (because you give him nursery water). Too much flouride is not a good thing, but it generally produces white spots. My next thought was the steroids. My oldest son was on a pretty long round of Prednisone for some gastro-intestinal issues. After a couple of weeks, I noticed that his teeth looked 'strange.' The color had changed to a funny light gray, barely noticeable, really. The doctor didn't see it, but I did (and who knows my baby better? I look at that face every day!) The discoloration went away after he finished up his Prednisone and there was time for all of the unfortunate side-effects of steroids to work themselves out of his body. I would venture to guess that it is the steroids with your baby(steroids are heavy duty!) because he is taking them through a nebulizer and they have the opportunity to actually come in contact with his teeth. I'll bet that it goes away after the steroids. Hope this helped a little and that your baby is feeling better and off those rotten steroids soon! By the way, even though this discoloration is probably not caused by it, you do know that laying him down with a bottle is never a good idea, don't you? While the dental caries it can cause, referred to as 'milk teeth,' don't affect the second teeth, they do make the first ones look terrible!
I'm a church-going, book-reading, music-loving, play-dough-making, finger-painting, flip-flop-wearing, homeschool mama of 3. sam (1/13/00), elijah (1/21/03), and ruby (6/17/05). and i want more!