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US 6,984,261 B2Granted
Use of ceramics in dental and orthodontic applications
Assignee3M Innovative Properties Company
InventorsKevin M. Cummings, Jacqueline C. Rolf, Anatoly Z. Rosenflanz, Richard P. Rusin, Jerome E. Swanson
Life of this patent
Estimating the term…
Abstract
The invention relates to uses of glasses and glass-ceramics in dental and orthodontic applications.
Claims8
An article comprising at least one of a glass or glass-ceramic comprising:
- a) at least 35 percent by weight Al2O3, based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al2O3, wherein the glass or glass-ceramic contains not more than 10 percent by weight collectively B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5, based on the total weight of the glass or glass-ceramic;
- b) at least 35 percent by weight Al2O3, based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al2O3, wherein the Al2O3 and the first metal oxide collectively comprise at least 70 percent by weight of the glass or glass-ceramic;
- c) Al2O3 and at least one of REO or Y2O3, wherein at least 80 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3 and the at least one of REO or Y2O3, based on the total weight of the glass or glass-ceramic;
- d) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 80 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, based on the total weight of the glass or glass-ceramic;
- e) Al2O3 and at least one of REO or Y2O3, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3 and the at least one of REO or Y2O3, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO2 and not more than 20 percent by weight B2O3, based on the total weight of the glass or glass-ceramic;
- f) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO2 and not more than 20 percent by weight B2O3, based on the total weight of the glass or glass-ceramic;
- g) Al2O3 and at least one of REO or Y2O3, wherein at least 60 percent by weight of the glass or glass-ceramic comprise the Al2O3 and the at least one of REO or Y2O3, and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO2, B2O3, and P2O5, based on the total weight of the glass or glass-ceramic;
- h) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO2, B2O3, and P2O5, based on the total weight of the glass or glass-ceramic;
- or
- i) a glass-ceramic having an average hardness of at least 13 GPa, wherein the glass-ceramic has x, y, and z dimensions each perpendicular to each other, and wherein each of the x, y, and z dimensions is at least 5 mm, and wherein said article is in the form of a dental article or orthodontic appliance.
7 more elements
A kit comprising a plurality of orthodontic or dental components, wherein at least one of the components includes a dental material, dental article, or an orthodontic appliance which comprises a glass or glass-ceramic comprising:
- a) at least 35 percent by weight Al2O3, based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al2O3, wherein the glass or glass-ceramic contains not more than 10 percent by weight collectively B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5, based on the total weight of the glass or glass-ceramic;
- b) at least 35 percent by weight Al2O3, based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al2O3, wherein the Al2O3 and the first metal oxide collectively comprise at least 70 percent by weight of the glass or glass-ceramic;
- c) Al2O3 and at least one of REO or Y2O3, wherein at least 80 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3 and the at least one of REO or Y2O3, based on the total weight of the glass or glass-ceramic;
- d) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 80 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, based on the total weight of the glass or glass-ceramic;
- e) Al2O3 and at least one of REO or Y2O3, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3 and the at least one of REO or Y2O3, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO2 and not more than 20 percent by weight B2O3, based on the total weight of the glass or glass-ceramic;
- f) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO2 and not more than 20 percent by weight B2O3, based on the total weight of the glass or glass-ceramic;
- g) Al2O3 and at least one of REO or Y2O3, wherein at least 60 percent by weight of the glass or glass-ceramic comprise the Al2O3 and the at least one of REO or Y2O3, and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO2, B2O3, and P2O5, based on the total weight of the glass or glass-ceramic;
- h) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO2, B2O3, and P2O5, based on the total weight of the glass or glass-ceramic;
- or
- i) a glass-ceramic having an average hardness of at least 13 GPa.
7 more elements
The kit of claim 14 further comprising a component selected from the group consisting of an orthodontic adhesive, an adhesive primer, an appliance-positioning tool, and combinations thereof.
The kit of claim 14 further comprising a component selected from the group consisting of a dental mill blank, a bonding agent, a milling lubricant, a color-matching composition suitable for using in an oral environment, an impression material, an instrument, a dental composite, a dental porcelain, an abrasive, and combinations thereof.
A method of performing a dental restoration comprising the steps of:
- preparing a dental site to be restored;
- and
- applying a restorative material comprising a glass or glass-ceramic comprising at least one of:
- a) at least 35 percent by weight Al2O3, based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al2O3, wherein the glass or glass-ceramic contains not more than 10 percent by weight collectively B2O3, GeO2, P2O5, SiO2, TeO2, and V2O5, based on the total weight of the glass or glass-ceramic;
- b) at least 35 percent by weight Al2O3, based on the total weight of the glass or glass-ceramic, and a first metal oxide other than Al2O3, wherein the Al2O3 and the first metal oxide, collectively comprise at least 70 percent by weight of the glass or glass-ceramic;
- c) Al2O3 and at least one of REO or Y2O3, wherein at least 80 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3 and the at least one of REO or Y2O3, based on the total weight of the glass or glass-ceramic;
- d) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 80 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, based on the total weight of the glass or glass-ceramic;
- e) Al2O3 and at least one of REO or Y2O3, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3 and the at least one of REO or Y2O3, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO2 and not more than 20 percent by weight B2O3, based on the total weight of the glass or glass-ceramic;
- f) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, and wherein the glass or glass-ceramic contains not more than 20 percent by weight SiO2 and not more than 20 percent by weight B2O3, based on the total weight of the glass or glass-ceramic;
- g) Al2O3 and at least one of REO or Y2O3, wherein at least 60 percent by weight of the glass or glass-ceramic comprise the Al2O3 and the at least one of REO or Y2O3, and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO2, B2O3, and P2O5, based on the total weight of the glass or glass-ceramic;
- h) Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, wherein at least 60 percent by weight of the glass or glass-ceramic collectively comprises the Al2O3, at least one of REO or Y2O3, and at least one of ZrO2 or HfO2, and wherein the glass or glass-ceramic contains not more than 40 percent by weight collectively SiO2, B2O3, and P2O5, based on the total weight of the glass or glass-ceramic;
- or
- i) a glass-ceramic having an average hardness of at least 13 GPa.
10 more elements
Dependencies are inferred from the claim text.