Examine finds iron-rich enamel protects, however would not coloration, rodents’ orange-brown incisors

Chattering squirrels, charming coypus, and tail-slapping beavers — together with another rodents — have orange-brown entrance tooth. Researchers have produced high-resolution pictures of rodent incisors, offering an atomic-level view of the tooth’s ingenious enamel and its coating. They found tiny pockets of iron-rich supplies within the enamel that kind a protecting protect for the tooth however, importantly, do not contribute to the orange-brown hue — new insights that would enhance human dentistry.