Dentists Back Sealants, Despite Concerns

Cavities or chemicals? That’s the dilemma for parents worried about a controversial substance found in the popular sealants that are painted on children’s molars to prevent decay.

The chemical is bisphenol-A, or BPA, which is widely used in the making of the hard, clear plastic called polycarbonate, and is also found in the linings of food and soft-drink cans. Most human exposure to the chemical clearly comes from the food supply. But traces have also been found in dental sealants.

Although the Food and Drug Administration has reassured consumers that the chemical appears to be safe, it has received increasing scrutiny in recent months from health officials in the United States and Canada.

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