'Nanospheres' That Block Pain Of Sensitive Teeth, ScienceDaily
Excerpts: Nanospheres could help dentists fill the tiny holes in our teeth that make them incredibly sensitive, and that cause severe pain for millions of adults and children worldwide. Preliminary research (...) shows that creating tiny spheres of a ceramic material called hydroxyapatite could be a long term solution or cure for sensitive teeth. Sensitive teeth or 'dental hypersensitivity' is a condition that arises when the dentine of the tooth is exposed. The dentine is made up of thousands of tiny fluid-filled channels (...) cause the fluid in these channels to move - in or out - triggering the nerve endings and causing sharp pain. (...)