Sub-micron silica particles can be prepared to deliver important compounds into damaged teeth through tubules in the dentine. The tiny particles can be bound to compounds ranging from calcium tooth building materials to antimicrobials that prevent infection.
Professor Damien Walmsley, from the School of Dentistry at the University of Birmingham, explained, “The dentine of our teeth have numerous microscopic holes, which are the entrances to tubules that run through to the nerve. When your outer enamel is breached, the exposure of these tubules is really noticeable. If you drink something cold, you can feel the sensitivity in your teeth because these tubules run directly through to the nerve and the soft tissue of the tooth.”
“Our plan was to use target those same tubules with a multi...
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