Medical News Today -- Scientists at the University of Liverpool have developed a new dental product to identify plaque build-up in the mouth before it is visible to the human eye. The toothbrush-sized product has a blue light at its tip, which, when shone around the mouth and viewed through yellow glasses with a red filter, allows plaque to be seen easily as a red glow. The device, produced in collaboration with dental and healthcare developers, Inspektor Research Systems BV, has been designed for everyday use in the home.
