Blood Lead Levels Associated with Dental Caries Children exposed to environmental lead may be more likely to develop caries than children who are not.

The Journal of the American Medical Association published a study that examined the relationship between blood levels and dental caries in more than 24,000 children.

The study revealed that for every 5 micrograms-per-deciliter increase in blood lead levels the rate of caries increased by 80%.

The study helps explain the disproportionately high rate of caries among inner-city children. The researchers conclude that changing diets may not be enough to prevent dental caries to occur. Improving oral hygiene habits and increasing fluoride exposure of inner-city children may be necessary.