Pages Menu
Categories Menu

Posted by on Sep 18, 2012 in Science |

Apatite create flexible patch that could wipe teeth with caries

Apatite create flexible patch that could wipe teeth with caries

A revolutionary invention that could prevent tooth, repairing damaged enamel and even make our look white always. A group of Japanese researchers has created microscopically thin film which cover the tooth thanks to hydroxyapatite.

And the is a mineral with hexagonal crystals and hardness 5 on the Mohs scale. Its chemical composition is approximately Ca5 (PO4) 3 (F, Cl, OH) and the enamel of our teeth and part of bones consists of apatite.

The achievements of scientists is durable and flexible material composed mainly of hydroxyapatite, a revolution that could end sensitive teeth. According to Professor Shigeki Hontsu, Faculty of Science and Technology in Japan’s Kinki University:

This is the first sheet of flexible apatite the world, a development that we hope to use to protect teeth or repair the damaged enamel. Some time ago, dentists could only imagine the creation of a whole sheet of apatite, now our goal is to create an entire artificial nail.

According count, can create a film of only 0.004 millimeters thick laser shot due to compressed blocks of hydroxyapatite in a vacuum over, so that individual particles can be created.

These particles fall on a block of salt that is heated to crystallize, then the support salt is dissolved in water. Subsequently the film is collected on a filter paper and dried. Finally we obtain a material robust enough to be picked up by a pair of tweezers.

According Hontsu:

At the moment when we put on the tooth surface becomes invisible. Just see if you can see under a light.

The sheet would have a number of tiny holes which allow air to escape and liquid to prevent formation of bubbles when applied to the tooth.

The only problem the researchers found is that it takes a whole day for the film to adhere firmly to the surface of the tooth. A transparent film could be white for use in cosmetic dentistry.

These first tests were carried out with human teeth into disuse and the next step will be the application to finally make test animals with humans. An estimated time of about five years before it can be used as a practical treatment by dentists. Of success in the following tests, scientists may have come up with a revolutionary system against cavities and sensitive teeth.

Tags: , ,