PüreNano Nanoparticles Enable Superior Dental Composites - New Product

NanoProducts Corporation has successfully demonstrated its nanotechnology can be used in dental care applications.

Dental applications are challenging and require best performance from dental care providers and materials technology. Materials used in these applications need to be comfortable, hard, wear resistant, strong and yet also visibly appealing. Poorly formulated dental materials can result in discomfort, complications and increased health care cost to consumers.

Demanding requirements such as those for dental materials also exist in numerous other products such as coatings. Recent developments in nanotechnology are increasingly being considered to address these requirements. A key challenge to widespread adoption of nanotechnology to such applications is the ability to manufacture non-agglomerated discrete nanoparticles that can be homogeneously distributed in resins or coatings to produce nanocomposites. NanoProducts is pleased to report that its PüreNanoTM family of nanoparticles composition has been  successfully demonstrated to achieve such performance in highly loaded dental nanocomposites.

In US Patent 6,593,395, issued in favor of Kerr Corporation (a division of Sybron Dental Specialties Inc, NYSE: SYD), NanoProducts notes the successful demonstration and use of its PüreNanoTM complex silicon chemistry-based nanoparticles to prepare nanocomposites that exhibit significantly superior hardness, flexural strength, modulus while simultaneously offering superior translucency and cosmetic appeal.

Additionally, PüreNanoTM nanoparticles enabled nearly 50% reduction in filling shrinkage. These nanocomposites are suggested to be particularly useful for fabricating loading bearing and cosmetic restorations. The Kerr patent further explains – “nanofillers suitable for use include powders with particles that are not aggregated or substantially agglomerated so as to minimize particle-particle interactions. The discrete particles have a mean particle size less than 100 nm. For example, NanoProducts Corporation manufactures an aluminosilicate powder having a mean particle size of about 80 nm and a 1:4 molar ratio of alumina to silica. This nanofiller has a refractive index of 1.508. The powder produced by NanoProducts process is discrete, non-agglomerated particles of narrow particle size distribution.”

Posted 1^st August 2003