### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Hi.  My son had vomiting as a small child (not reflux).  We were referred to a paediatrician.  He was prescribed sandomigran for a while.  He eventually had a barium meal to see if there was something wrong with his gut.  He is now 13 and has grown out of all of this. Anyway both his baby teeth and now his adult teeth on his bottom right of his mouth have come through with very little enamel.  Is this anything to do with the vomitting or the medication?

### output:

Hello, Enamel can be damaged by acid in the mouth. The stomach acid included in vomit with repeat episodes can easily damage the enamel on teeth. This would occur after the teeth are erupted and have been exposed to the acidic environment. This could then be the case with the baby teeth. Now you state the adult teeth have weak enamel. This could be a genetic weakness. Nutrition and medication taken while the teeth are forming will affect the quality of the tooth structure. Baby teeth can be damaged if baby sleeps with a bottle with milk products coating teeth and causing decay. Fluoride can be given with child Chat Doctor.  As adults the addition of fluoride is not recommended because teeth are already formed. Instead, topical fluoride can help strengthen formed tooth enamel. Too much fluoride taken as a child can have the reverse effect of weakened enamel forming. Often white spots are seen and indicate too much fluoride. The antibiotic Tetracycline is known to darken the layer under enamel and cause gray to brown banding if taken while teeth are forming. No concern with this type of discoloration when taken as an adult. The medication, Pizotifen, does not report any significant dental side effects concerning enamel. This is not available in the United States, so I am not familiar with this 