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Researchers at the University of Illinois at Chicago couldn't stop thinking about the spinning, vibrating tools in a dentist's office that turn water into mist and send it flying into the air. If that mist contains a virus or some other pathogen, it is a health hazard for dentists and patients.
In a new study of human enamel, the materials scientists are the first to identify a small number of impurity atoms that may contribute to the enamel's strength but also make the material more soluble. They also are the first to determine the spatial distribution of the impurities with atomic-scale resolution.
KAIST researchers used atomic force microscopy to quantitatively evaluate how acidic and sugary drinks affect human tooth enamel at the Nano scale level. This novel approach is useful for measuring mechanical and morphological changes that occur over time during enamel erosion induced by beverages.