Fast-dissolving, toothache-relieving particles take materials prize

The researchers from Queen Mary, University of London have developed new degradable particles designed to enter holes in teeth.

The particles are special glasses that can be incorporated into toothpaste and dissolve in the mouth, releasing calcium and phosphate that form tooth mineral. This reduces tooth pain, cuts back on the incidences of tooth decay and repairs teeth.

It is claimed this could bring relief to the estimated 20 million adults in UK who are prone to tooth sensitivity.

The team behind this development, led by Prof Robert Hill from Queen Mary, University of London have won the £25,000 materials science Venture Prize, awarded by the Worshipful Company of Armourers and Brasiers.

‘These new particles dissolve faster than existing ones and are also softer than tooth enamel,’ said Prof Hill in a statement. ‘They have a more expanded open structure and this allows water to go into the glass structure faster and the calcium and phosphate ions to come out faster. Also, while existing particles are significantly harder and abrade away the enamel during brushing, our new particles will be softer.’