1
Xiaodong Zhang, Brant Ulrick Kolb, Douglas Alan Hanggi, Bradley Dene Craig: Dental materials with nano-sized silica particles. 3M Innovative Properties Company, Sean Edman, May 31, 2005: US06899948 (59 worldwide citation)

A dental material comprising a hardenable resin and silica particles dispersed within the hardenable resin, wherein the silica particles have an average diameter of less than about 200 nm and are present in an amount greater than about 40 wt % of the weight of the dental material. The dental materia ...


2
Xiaodong Zhang, Brant Ulrick Kolb, Douglas Alan Hanggi, Bradley Dene Craig: Dental materials with nano-sized silica particles. 3M Innovative Properties Company, October 24, 2002: US20020156152-A1

A dental material comprising a hardenable resin and silica particles dispersed within the hardenable resin, wherein the silica particles have an average diameter of less than about 200 nm and are present in an amount greater than about 40 wt % of the weight of the dental material. The dental materia ...