Method and composition for priming and adhering to tooth structure
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United States of America Patent
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Nov 6, 2001
Issued Date -
N/A
app pub date -
Apr 25, 1996
filing date -
Aug 22, 1994
priority date (Note) -
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Abstract
A composition and method of treating a dental tooth surface and adhering a restorative material to the treated dental tooth surface is provided. A liquid composition is applied to at least the portion of the tooth to form a treated surface. The composition includes at least 50 percent by weight of a volatile organic solvent, at least 15 percent by weight of one or more polymerizable acrylate compounds and an effective amount of a photoinitiator. At least a portion of the polymerizable compounds are multifunctional polymerizable compounds having at least three acrylate moieties. The polymerizable compounds are substantially soluble in the solvent. The composition is adapted to form a polymeric material which is adapted to adhere to dentin with a bond strength of at least 12 MPa. Restorative material is then adhered to the treated surface with a bond strength of at least about 12 MPa. The polymeric material has a yield strength of at least 50 MPa, an elastic modulus of at least 1,000 MPa, a resilience of at least 0.4 MPa and/or provides an initial marginal integrity after etching the teeth of at least 90 percent.
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