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Dentists Can Use Nanoparticles as Strengthener in Adhesives

Published on 2009-09-04. Author : SpecialChem

TEHRAN -- Iran Polymer and Petrochemical Institute recently produced some nanoparticles which can be used as strengthener in dental adhesives.

The application of these nanoparticles does not have the risk of toxicity caused by other nanoparticles.

The researchers believe that the use of hydroxyapatite nanoparticles as strengthener in dental adhesive systems sounds appropriate due to the direct adhesion of adhesive system to dentin or dental enamel.

A number of evidences indicate that the use of hydroxyapatite nanoparticles is likely to repair the lost parts of teeth. Another factor which makes the application of hydroxyapatite nanoparticles appropriate in dental adhesive systems is the possibility of the diffusion of nanoparticles into the dental tubules resulting in the improvement of the fine mechanical linkages.

Using the mentioned nanoparticles in dental adhesive systems could reduce the risk of toxicity resulting from other nanoparticles as well as strengthening the adhesion to tooth.

"Two important features of hydroxyapatite nanoparticles for being used in dental adhesives are their degree of crystallinity and colloidal stability," Mehdi Sadat Shojaee, one of the Iranian scientists said.

Shojaee also explained that the strengthening properties of nanoparticles increase as their degree of crystallinity goes up. It is necessary for nanoparticles to have a high colloidal stability in order to let dentists work with them easily.

"In the present research, we used two completely different innovative processes of Solvo-Treatment and Hydrothermal for synthesizing hydroxyapatite nanoparticles," he added.

Source: Iran Polymer and Petrochemical Institute

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