Dental materials having a nanoscale filler
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United States of America Patent
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Feb 17, 2004
Grant Date -
May 30, 2002
app pub date -
Nov 19, 2001
filing date -
Oct 3, 1997
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Abstract
A low-viscosity dental material contains a non-settling nanoscale filler. Improvements of the mechanical properties of the dental materials, including the abrasive resistance and the compressive strength are provided. Furthermore, the dental materials have increased resistance to microleakage and have increased bond strengths. The filler forms a stable sol with low-viscosity dental materials and the filler may be prepared by surface treatment of fillers having a primary particle size of from about 1 to about 100 nanometers.
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