If you are concerned about your child having enamel hypoplasia, then know that there is a pediatric dentist who can install white zirconia dental crowns anywhere in a child's mouth - including up to all 20 baby teeth. Here is more about Dr. Baghai and the BabyPRL Method:
Here is more information on pediatric enamel hypoplasia:
https://www.sciencedirect.com/topics/medicine-and-dentistry/enamel-hypoplasia
https://crest.com/en-us/oral-care-tips/tooth-enamel/enamel-hypoplasia-causes-symptoms-treatment