Material Thoughts: Doctor, can you PEEK into my mouth?

05/24/2011

In this Material Thoughts roundup of recent developments in plastics, fillers and additives, we report on the use of PEEK in dental implants, RTP's conductive compound charging a customer's application, a new Struktol lubricant for polyamides, and the introduction of Oxsoft, a range of phthalate-free and non-VOC plasticizers.

First the polyether ether ketone (PEEK) dental application: Milling blanks for dental crown and bridge implants typically are made from ceramic or metal, but dental technology supplier NT-Trading now offers such blanks formed from PEEK. NT-Trading is sourcing the material for these dental implants from plastics and chemicals supplier Evonik Industries, which markets its PEEK under the Vestakeep brand name.

NT-Trading says its new semi-finished products, called Dentokeep, have mechanical properties superior to those of conventional semi-finished products, are easier to process than ceramics, and-compared to titanium-also are suitable for patients with allergies. PEEK also is more elastic than metal, making these implants more comfortable for patients....
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