Exposing teeth to excessive fluoride alters calcium signaling, mitochondrial function, and gene expression in the cells forming tooth enamel—a novel explanation for how dental fluorosis, a condition caused by overexposure to fluoride during childhood, arises. The study, led by researchers at NYU College of Dentistry, is published in Science Signaling.
Green in tooth and claw
Hard plant foods may have made up a larger part of early human ancestors’ diet than currently presumed, according to a new experimental study of modern tooth enamel from Washington University in St. Louis. The results have implications for reconstructing diet, and potentially for our interpretation of the fossil record of human evolution, researchers said.
Scientists show how one cause of weak enamel unfolds on the molecular level
Too-tight proteins impede creation of crystalline enamel structure, which can lead to bad teeth Scientists have shown how a tiny flaw in a protein results in damaged enamel that is prone to decay, according to a new study published in…