In this demonstration photo of a mannequin, experts used a trick discovered by chemists to show how much mercury can be released when a mercury filling is drilled out of a tooth without protective measures. Only the mercury atoms can absorb photons beamed toward the mannequin at a specific wavelength.
In this demonstration photo of a mannequin, experts used a trick discovered by chemists to show how much mercury can be released when a mercury filling is drilled out of a tooth without protective measures. Only the mercury atoms can absorb photons beamed toward the mannequin at a specific wavelength. Courtesy of Randall Moore Courtesy of Randall Moore
In this demonstration photo of a mannequin, experts used a trick discovered by chemists to show how much mercury can be released when a mercury filling is drilled out of a tooth without protective measures. Only the mercury atoms can absorb photons beamed toward the mannequin at a specific wavelength. Courtesy of Randall Moore Courtesy of Randall Moore

Dental group defends mercury fillings amid mounting evidence of risks

January 05, 2016 2:10 PM