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Title: Method and product for phosphosilicate slurry for use in dentistry and related bone cements

Abstract

The present invention is directed to magnesium phosphate ceramics and their methods of manufacture. The composition of the invention is produced by combining a mixture of a substantially dry powder component with a liquid component. The substantially dry powder component comprises a sparsely soluble oxide powder, an alkali metal phosphate powder, a sparsely soluble silicate powder, with the balance of the substantially dry powder component comprising at least one powder selected from the group consisting of bioactive powders, biocompatible powders, fluorescent powders, fluoride releasing powders, and radiopaque powders. The liquid component comprises a pH modifying agent, a monovalent alkali metal phosphate in aqueous solution, the balance of the liquid component being water. The use of calcined magnesium oxide as the oxide powder and hydroxylapatite as the bioactive powder produces a self-setting ceramic that is particularly suited for use in dental and orthopedic applications.

Inventors:
;
Issue Date:
Research Org.:
Dentsply International, Inc., York, PA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1175852
Patent Number(s):
7083672
Application Number:
10/913,185
Assignee:
Dentsply International, Inc. (York, PA)
Patent Classifications (CPCs):
C - CHEMISTRY C04 - CEMENTS C04B - LIME, MAGNESIA
A - HUMAN NECESSITIES A61 - MEDICAL OR VETERINARY SCIENCE A61K - PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats

Wagh, Arun S., and Primus, Carolyn. Method and product for phosphosilicate slurry for use in dentistry and related bone cements. United States: N. p., 2006. Web.
Wagh, Arun S., & Primus, Carolyn. Method and product for phosphosilicate slurry for use in dentistry and related bone cements. United States.
Wagh, Arun S., and Primus, Carolyn. Tue . "Method and product for phosphosilicate slurry for use in dentistry and related bone cements". United States. https://www.osti.gov/servlets/purl/1175852.
@article{osti_1175852,
title = {Method and product for phosphosilicate slurry for use in dentistry and related bone cements},
author = {Wagh, Arun S. and Primus, Carolyn},
abstractNote = {The present invention is directed to magnesium phosphate ceramics and their methods of manufacture. The composition of the invention is produced by combining a mixture of a substantially dry powder component with a liquid component. The substantially dry powder component comprises a sparsely soluble oxide powder, an alkali metal phosphate powder, a sparsely soluble silicate powder, with the balance of the substantially dry powder component comprising at least one powder selected from the group consisting of bioactive powders, biocompatible powders, fluorescent powders, fluoride releasing powders, and radiopaque powders. The liquid component comprises a pH modifying agent, a monovalent alkali metal phosphate in aqueous solution, the balance of the liquid component being water. The use of calcined magnesium oxide as the oxide powder and hydroxylapatite as the bioactive powder produces a self-setting ceramic that is particularly suited for use in dental and orthopedic applications.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {8}
}

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