US2013209966A1PendingUtilityA1
Integrated Porcelain System for a Dental Prosthesis
Est. expiryMay 30, 2028(~1.9 yrs left)· nominal 20-yr term from priority
A61K 6/858C03C 8/08A61C 13/09C09D 1/00A61C 5/70C03C 8/06C03C 8/02A61C 13/0006C03C 4/0021A61C 13/0835C03C 2204/04A61C 5/77A61C 5/73A61C 5/10A61C 5/08
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Claims
Abstract
An integrated dental porcelain system for making dental prostheses and restorations is provided. The system includes three universal major components: a) opaque porcelain composition; b) pressable dentin ingot; and c) veneering porcelain composition that can be used interchangeably for making restorations. Techniques for making the prostheses and restorations include porcelain fused-to-metal (PFM), press-to-metal (PTM), and either pressed and/or machined all-ceramic methods. The system uses both a hand-layering of veneering porcelain (PFM technique) and a hot-pressing process (PTM and all-ceramic technique) to fabricate the prostheses and restorations.
Claims
exact text as granted — not AI-modified1 . A dental prosthesis comprising:
a metal substructure; an opaque layer having a composition including the following components:
Components
Concentration Range (Wt. %)
SiO 2
42-46%
Al 2 O 3
8-12%
Na 2 O
2-5%
K 2 O
6-9%
Li 2 O
0-2%
CaO
0-2%
MgO
0-2%
ZrO 2
20-30%
SnO 2
1-4%
Tb 4 O 7
0-2%
CeO 2
0-3%
TiO 2
0-2%
Sb 2 O 3
0-0.1%
Fluorescing agent
0-5%
wherein the opaque layer, after firing to a temperature in the range of 860° to 900° C., forms an opaque coating over the metal substructure, the opaque coating being thermally compatible and thermally stable with the metal substructure.
2 . The dental prosthesis of claim 1 further comprising a porcelain layer over the opaqued metal substructure, the porcelain layer having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
63-66%
Al 2 O 3
10-14%
Na 2 O
3-7%
K 2 O
9-12%
Li 2 O
0-2%
CaO
1-4%
BaO
0-3%
Tb 4 O 7
0-2%
CeO 2
0-2%
wherein the porcelain layer, after pressing at a temperature in the range of 870° C. to 910° C., forms a dentin body layer, the dentin body layer being thermally compatible with the opaqued metal substructure.
3 . The dental prosthesis of claim 2 , further comprising a shade stain layer and/or a glaze layer, the shade stain layer and/or the glaze layer, each having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-5%
Sb 2 O 3
0-0.5%
F
0-2.5%
TiO 2
0-1%
wherein the stain layer and/or the glaze layer, after firing to a temperature in the range of 780° to 840° C., form a shade stain and/or glaze overlayer over the dentin body layer, the shade stain and/or glaze overlayer being thermally compatible and thermally stable with the dentin body layer.
4 . The dental prosthesis of claim 1 further comprising a veneering porcelain layer having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
62-65%
Al 2 O 3
8-11%
Na 2 O
8-11%
K 2 O
4-7%
Li 2 O
0-2%
CaO
2-5%
BaO
0-3%
MgO
1-4%
SnO 2
0-2%
Tb 4 O 7
0-2%
CeO 2
0-2%
Sb 2 O 3
0-2%
P 2 O 5
0-0.1%
TiO 2
0-0.1%
F
0-1%
wherein the veneering porcelain layer, after firing at a temperature in the range of 810° C. to 860° C., forms a dentin-enamel layer over the opaqued metal substructure, the dentin-enamel layer being thermally compatible with the opaqued metal substructure.
5 . The dental prosthesis of claim 4 , further comprising a glaze layer having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-4%
wherein the glaze layer, after firing to a temperature in the range of 780° to 840° C., forms a glaze overlayer over the fired dentin-enamel layer, the glaze overlayer being thermally compatible with the dentin-enamel layer.
6 . The dental prosthesis of claim 2 , further comprising a veneering porcelain layer having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
62-65%
Al 2 O 3
8-11%
Na 2 O
8-11%
K 2 O
4-7%
Li 2 O
0-2%
CaO
2-5%
BaO
0-3%
MgO
1-4%
SnO 2
0-2%
Tb 4 O 7
0-2%
CeO 2
0-2%
Sb 2 O 3
0-2%
P 2 O 5
0-0.1%
TiO 2
0-0.1%
F
0-1%
wherein the veneering porcelain layer, after firing at a temperature in the range of 810° C. to 860° C., forms an enamel layer over the dentin body layer, the enamel layer being thermally compatible with the opaqued metal substructure and the dentin body layer.
7 . The dental prosthesis of claim 6 , further comprising a glaze layer over the fired enamel layer, the glaze layer having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-4%
wherein the glaze layer, after firing to a temperature in the range of 780° to 840° C., forms a glaze overlayer over the pressed enameled dentin body layer, the glaze overlayer being thermally compatible with the enameled dentin body layer.
8 . A dental prosthesis comprising:
an all-ceramic core, and a porcelain layer having a composition including the following components;
Oxide
Concentration Range (Wt. %)
SiO 2
63-66%
Al 2 O 3
10-14%
Na 2 O
3-7%
K 2 O
9-12%
Li 2 O
0-2%
CaO
1-4%
BaO
0-3%
Tb 4 O 7
0-2%
CeO 2
0-2%
wherein the porcelain layer, after pressing at a temperature in the range of 870° C. to 910° C., forms a dentin body layer, forms a dentin body layer, the dentin body layer being thermally compatible with the ceramic core.
9 . The dental prosthesis claim 8 , further comprising a veneering porcelain layer having a composition including the following components
Oxide
Concentration Range (Wt. %)
SiO 2
62-65%
Al 2 O 3
8-11%
Na 2 O
8-11%
K 2 O
4-7%
Li 2 O
0-2%
CaO
2-5%
BaO
0-3%
MgO
1-4%
SnO 2
0-2%
Tb 4 O 7
0-2%
CeO 2
0-2%
Sb 2 O 3
0-2%
P 2 O 5
0-0.1%
TiO 2
0-0.1%
wherein the veneering porcelain layer, after firing at a temperature in the range of 810° C. to 860° C., forms an enamel layer over the dentin body layer, the enamel layer being thermally compatible with the dentin body layer.
10 . The dental prosthesis claim 9 , further comprising a glaze layer over the fired enamel layer, the glaze layer having a composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-4%
wherein the glaze layer, after firing to a temperature in the range of about 780° to 840° C., forms a glaze overlayer over the dentin body layer, the glaze overlayer being thermally compatible with the dentin body layer.
11 . A method for making a dental prosthesis comprising the step of:
providing a metal substructure; applying an opaque composition over the metal substructure, the opaque composition including the following components:
Component
Concentration Range (Wt. %)
SiO 2
42-46%
Al 2 O 3
8-12%
Na 2 O
2-5%
K 2 O
6-9%
Li 2 O
0-2%
CaO
0-2%
MgO
0-2%
ZrO 2
20-30%
SnO 2
1-4%
Tb 4 O 7
0-2%
CeO 2
0-3%
TiO 2
0-2%
Sb 2 O 3
0-0.1%
Fluorescing agent
0-5%
and firing to a temperature in the range of 860° to 900° C. to form an opaqued metal substructure.
12 . The method of claim 11 , wherein the opaque composition is in powder or paste form prior to being fired.
13 . The method of claim 11 , wherein the opaque composition is applied to the metal substructure by spraying, slurry dipping, or electro-depositing.
14 . The method of claim 11 , further comprising the steps of:
applying a porcelain composition over the opaqued substructure, the porcelain composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
63-66%
Al 2 O 3
10-14%
Na 2 O
3-7%
K 2 O
9-12%
Li 2 O
0-2%
CaO
1-4%
BaO
0-3%
Tb 4 O 7
0-2%
CeO 2
0-2%
and firing to a temperature in the range of 870° C. to 910° C. to form a dentin body layer over the opaque substructure, the dentin body layer being thermally compatible with the opaqued substructure.
15 . The method of claim 14 , further comprising the steps of:
applying a shade stain composition and/or a glaze composition, each including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-5%
Sb 2 O 3
0-0.5%
F
0-2.5%
TiO 2
0-1%
and firing at a temperature in the range of 780° to 840° C. to form a shade stain and/or glaze layer over the dentin body layer, the shade stain and/or glaze layer being thermally compatible and thermally stable with the dentin body layer.
16 . The method of claim 11 , further comprising the steps of:
applying a veneering porcelain composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
62-65%
Al 2 O 3
8-11%
Na 2 O
8-11%
K 2 O
4-7%
Li 2 O
0-2%
CaO
2-5%
BaO
0-3%
MgO
1-4%
SnO 2
0-2%
Tb 4 O 7
0-2%
CeO 2
0-2%
Sb 2 O 3
0-2%
P 2 O 5
0-0.1%
TiO 2
0-0.1%
F
0-1%
and firing at a temperature in the range of 810° C. to 860° C. to form a dentin-enamel layer over the opaqued substructure, the dentin-enamel layer being thermally compatible with the opaqued substructure.
17 . The method of claim 16 , wherein the later applied dentin-enamel layer is applied by a hot pressing technique or hand build-up technique.
18 . The method of claim 16 , further comprising the steps of:
applying a glaze composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-5%
Sb 2 O 3
0-0.5%
F
0-2.5%
TiO 2
0-1%
and firing to a temperature in the range of 780° to 840° C. to form a glaze overlayer over the fired dentin-enamel layer, the glaze overlayer being thermally compatible with the dentin-enamel layer.
19 . The method of claim 14 , further comprising the steps of:
applying a veneering porcelain composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
62-65%
Al 2 O 3
8-11%
Na 2 O
8-11%
K 2 O
4-7%
Li 2 O
0-2%
CaO
2-5%
BaO
0-3%
MgO
1-4%
SnO 2
0-2%
Tb 4 O 7
0-2%
CeO 2
0-2%
Sb 2 O 3
0-2%
P 2 O 5
0-0.1%
TiO 2
0-0.1%
F
0-1%
and firing at a temperature in the range of 810° C. to 860° C. to form an enamel layer over the dentin body layer, the enamel layer being thermally compatible with the opaqued metal substructure and the dentin body layer.
20 . The porcelain composition of claim 19 , wherein the later applied dentin-enamel layer is applied by a hand build-up technique.
21 . The method of claim 19 , further comprising the steps of:
applying a glaze composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-5%
Sb 2 O 3
0-0.5%
F
0-2.5%
TiO 2
0-1%
and firing to a temperature in the range of 780° to 840° C. to form a glaze layer over the fired enamel layer, the glaze overlayer being thermally compatible with the fired enamel layer.
22 . A method for making a dental prosthesis comprising the step of:
providing an all ceramic core; applying a porcelain composition over the ceramic core, the porcelain composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
63-66%
Al 2 O 3
10-14%
Na 2 O
3-7%
K 2 O
9-12%
Li 2 O
0-2%
CaO
1-4%
BaO
0-3%
Tb 4 O 7
0-2%
CeO 2
0-2%
and firing at a temperature in the range of 870° C. to 910° C. to form a dentin body layer over the ceramic core, the dentin body layer being thermally compatible with the ceramic core.
23 . The method of claim 22 , further comprising the steps of:
applying a porcelain composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
62-65%
Al 2 O 3
8-11%
Na 2 O
8-11%
K 2 O
4-7%
Li 2 O
0-2%
CaO
2-5%
BaO
0-3%
MgO
1-4%
SnO 2
0-2%
Tb 4 O 7
0-2%
CeO 2
0-2%
Sb 2 O 3
0-2%
P 2 O 5
0-0.1%
TiO 2
0-0.1%
F
0-1%
and firing at a temperature in the range of 810° C. to 860° C. to form an enamel layer over the dentin body layer, the enamel layer being thermally compatible with the dentin body layer.
24 . The method of claim 23 , further comprising the steps of:
applying a glaze composition including the following components:
Oxide
Concentration Range (Wt. %)
SiO 2
56-64%
Al 2 O 3
6-13%
Na 2 O
7-15%
K 2 O
7-15%
Li 2 O
0-5%
CaO
0-3%
MgO
2-5%
SnO 2
0-4%
Tb 4 O 7
0-3%
CeO 2
0-2%
B 2 O 3
0-5%
Sb 2 O 3
0-0.5%
F
0-2.5%
TiO 2
0-1%
and firing to a temperature in the range of 780° to 840° C. to form a glaze layer over the fired enamel layer, the glaze layer being thermally compatible with the fired enamel layer.Cited by (0)
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