06899948 is referenced by 59 patents and cites 216 patents.

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 material may further comprise a heavy metal oxide. The dental material can be used as dental adhesives, artificial crowns, anterior or posterior fillings, casting materials, cavity liners, cements, coating compositions, mill blanks, orthodontic devices, restoratives, prostheses, and sealants.

Title
Dental materials with nano-sized silica particles
Application Number
10/122767
Publication Number
6899948 (B2)
Application Date
April 15, 2002
Publication Date
May 31, 2005
Inventor
Bradley Dene Craig
Cottage Grove
MN, US
Douglas Alan Hanggi
Woodbury
MN, US
Brant Ulrick Kolb
Afton
MN, US
Xiaodong Zhang
Woodbury
MN, US
Agent
Sean Edman
Assignee
3M Innovative Properties Company
MN, US
IPC
B32B 005/16
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