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Metal Oxide Compositions and Methods

Abstract: 

Metal oxide and metal oxide-silica nanoparticles are disclosed wherein the surfaces thereof are complexed with a polymerizable, biocompatible, heterocyclic base. Polymerizable compositions are prepared by loading such nanoparticles into acrylate based monomer matrices, which compositions can then be photocured into X-ray opaque, transparent or translucent solids. Methods are disclosed for forming such complexed nanoparticles and compositions and for using such compositions as medical or dental restoratives.

Patent Number: 
6,417,244
Date Of Issue: 
07/09/2002
Inventors: 

Stephen T. Wellinghoff; Hong Dixon; Henry R. Rawls; Barry K. Norling