High gold content bio--compatible dental alloy
AssigneeCendres et Metaux S.A.
InventorJens Fischer
Life of this patent
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Abstract
A high gold content dental alloy comprises, on a weight basis, 91 to 99.4% of gold, 0.5 to 3% of at least one metal selected from titanium and tantalum, up to 5% of silver, 0.05 to 1% of iridium and/or tungsten, and up to 1% at least one element selected from the group comprising rhodium, ruthenium, platinum, osmium, iron, molybdenum, niobium and rhenium.
Claims23
A bio-compatible dental alloy of high gold content comprising, by weight, from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, and an effective amount of tungsten to provide grain refinement, and 0-1% platinum.
A bio-compatible dental alloy of high gold content comprising, by weight, from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, and a mixture of iridium and an effective amount of tungsten to provide grain refinement, and 0-1% platinum.
A dental alloy of high gold content, consisting of from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, from 0 to 5% of silver, from 0.05 to 1%. of tungsten, and up to 1% of at least one metal selected from the group consisting of iridium, rhodium, ruthenium, platinum, palladium, osmium, iron, molybdenum, niobium and rhenium, the percentages given being by weight, and wherein said dental alloy is bio-compatible.
A dental alloy of high gold content, consisting of from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, from 0 to 5% of silver, from 0.05 to 1% of iridium, 0.05 to 1% tungsten, and up to 1% of at least one metal selected from the group consisting of rhodium, ruthenium, platinum, palladium, osmium, iron, molybdenum, niobium and rhenium, the percentages given being by weight, and wherein said dental alloy is bio-compatible.
A bio-compatible dental alloy of high gold content comprising, by weight, from 97.5 to 98.5% of gold, from 1.4 to 2.4% of titanium, and a mixture of iridium and an effective amount of tungsten to provide grain refinement.
A dental alloy of high gold content as set forth in claim comprising 0.05 to 1.0% of iridium and 0.05 to 1% of tungsten.
A bio-compatible dental alloy of high gold content consisting of, by weight, from 97.5 to 98.5% of gold, from 1.4 to 2.4% of titanium, 0 to 5% silver, from 0.05 to 1.0% of iridium and from 0.05 to 1.0% of tungsten.
A dental alloy of high gold content, consisting of from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, from 0 to 5% of silver, from 0.05 to 1% of tungsten, from 0 to 1% of iridium, and up to 1% of one or more metals selected from the group consisting of rhodium, ruthenium, platinum, palladium, osmium, iron, molybdenum, niobium, and rhenium, the percentages given being by weight, and wherein said dental alloy is bio-compatible.
A dental alloy of high gold content comprising from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, from 0 to 5% of silver, and an effective amount of tungsten to provide grain refinement up to 1%, the percentages given being by weight, and wherein said dental alloy is bio-compatible.
A dental alloy of high gold content, comprising from 91 to 99.4% of gold, from 0.5 to 3% of at least one metal selected from the group consisting of titanium and tantalum, from 0 to 5% of silver, from 0.05 to 1% of tungsten, from 0 to 1% of iridium, and up to 1% of one or more metals selected from the group consisting of rhodium, ruthenium, platinum, palladium, osmium, iron, molybdenum, niobium, and rhenium, the percentages given being by weight, and wherein said dental alloy is bio-compatible.
Dependencies are inferred from the claim text.