New data on smart repair of tooth decay

Over 80 percent of the population in the UK has at least one filling, with seven being the average. Eight million cavities are filled with amalgam each year.

This data – showing smart repair of tooth decay, prolonged life of composite fillings and a reduction in the need for mercury based amalgams – indicates a significant step forward in tooth restorative materials.

Professor Hill outlines how new bioactive glass composites are unique in their ability to release fluoride as well as the significant quantities of calcium and phosphate that are needed to form tooth mineral.

Professor Hill explains that while current dental fillings include inert materials, the data on the new bioactive glass composite shows that it interacts positively with the body providing minerals that replace those lost to tooth decay.

“Our scientists and dentists at Queen Mary replaced the inert tooth filling materials with our new bioactive glass, explained Professor Hill. “Not only does this bioactive glass composite remineralise the partially decayed teeth, but it also creates an alkaline environment that discourages the bacteria that caused the initial decay.