By Looking at Individual Atoms in Tooth Enamel, UW and PNNL Researchers Are Learning What Happens to Our Teeth as We Age

Credit: Andrea Starr/Pacific Northwest National Laboratory

A research team at the University of Washington and the Pacific Northwest National Laboratory examined the atomic composition of enamel samples from two human teeth. The researchers found that samples from an older person contained higher levels of the ion fluoride. Shown here, Jack Grimm, UW doctoral student in materials science and engineering and a doctoral intern at PNNL, prepares an enamel sample for atom probe tomography by loading it into a plasma-focused, ion-beam scanning electron microscope.

« By Looking at Individual Atoms in Tooth Enamel, UW and PNNL Researchers Are Learning What Happens to Our Teeth as We Age

Credit: Andrea Starr/Pacific Northwest National Laboratory

A research team at the University of Washington and the Pacific Northwest National Laboratory examined the atomic composition of enamel samples from two human teeth. To examine the atomic composition of enamel, Jack Grimm (foreground) worked with Arun Devaraj, a materials scientist at PNNL (background), to use a technique called "atom probe tomography," which allows researchers to get a 3D map of each atom in space in a sample.

« By Looking at Individual Atoms in Tooth Enamel, UW and PNNL Researchers Are Learning What Happens to Our Teeth as We Age

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