US2004226478A1PendingUtilityA1

Dental material

63
Priority: Jan 4, 2001Filed: Jun 14, 2004Published: Nov 18, 2004
Est. expiryJan 4, 2021(expired)· nominal 20-yr term from priority
Inventors:Carolyn M. Primus
A61K 6/851A61K 6/77C04B 2111/00215C04B 7/32C04B 2111/802C04B 2111/10C04B 2111/00836C04B 7/02
63
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Claims

Abstract

A white, substantially non-iron containing dental material formed from Portland cement. The material may be a dental cement, dental restorative or the like.

Claims

exact text as granted — not AI-modified
What is claimed is:  
     
         1 . A dental material comprising Portland cement and which contains less than about 0.5 percent by weight of iron oxide based upon 100 percent by weight of the material.  
     
     
         2 . A dental material as in  claim 1  which is white in color.  
     
     
         3 . A dental material as in  claim 1 , comprising from about 61 to about 70 weight percent calcia, from about 19 to about 29 weight percent silica, from about 5 to about 15 weight percent alumina and from 0 to about 0.5 weight iron, based upon 100 weight percent of the material.

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