See a dentist!: One is poor oral hygiene, with the paque/tarter not being removed effectively or cavities, two could be meds or supplements that the child is taking or chewing. Three, if the mother had tetracycline antibiotic when pregnant or the child being placed on tetracycline at an early age, the permanent, developing teeth take on a darken bluish brown coloration. This doesn't happen as much as now. Juice.
Answered 12/9/2013
5.5k views
Stains or Decay: The most likely cause is staining or decay of the teeth. I suggest you get her to a dentist as soon as possible for an evaluation.
Answered 12/9/2013
5.4k views
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