Sensitive teeth can make that ice-cream a little less sweet. However it has been proven there may be some help in sight for that cold-induced tooth pain, as a new material developed with a green tea extract that can fight tooth sensitivity.
Tooth sensitivity occurs when a protective coating on the crowns of your teeth called enamel or the layer covering your tooth root called cementum wear away, revealing a bony tissue called dentin. Without the protective coating, heat or cold can reach the nerves inside the tooth, causing hypersensitivity or a sharp pain when you eat something hot or cold.
Dentists usually use a mineral called nanohydroxyapatite to plug up tubes in the dentin to stop the liquids and food from reaching the nerves. However the problem is, the material doesn’t last long, and does not really stand up well to regular brushing and exposure to acid produced by bacteria in your mouth.
This is when it was decided to combine a green tea extract called EGCG which has shown to fight the bacteria that causes the build-up of cavity-promoting plaque with nanohydroxyapatite in silica particles, which can stand up to wear and tear.
The realization behind the combination on extracted wisdom teeth had been discovered that it found it plugged up dentin, released ECGC for at least 96 hours, and prevented plaque formation and tooth erosion.
Therefore this shows that the material may be good candidate to fight both tooth sensitivity and cavities.