초록

The present invention relates to a multi-colored shaped body having layers arranged on top of one another for producing dental restorations, a process for its production and its use for the manufacture of dental restorations.

대표청구항 ▼

1. A multi-colored shaped body having layers arranged on top of one another comprising: at least two successive and differently colored main layers; andan intermediate layer between at least two successive and differently colored main layers;wherein the intermediate layer comprises a mixture of all

1. A multi-colored shaped body having layers arranged on top of one another comprising: at least two successive and differently colored main layers; andan intermediate layer between at least two successive and differently colored main layers;wherein the intermediate layer comprises a mixture of all the materials of the two successive main layers;wherein the main layers have a thickness of more than 0.5 mm;wherein the intermediate layer has a thickness of up to 0.5 mm; andwherein the shaped body consists of a material selected from the group consisting of ceramic, glass ceramic, inorganic-composite, plastic or mixture thereof. 2. The multi-colored shaped body according to claim 1, comprising 4-20 main and intermediate layers. 3. The multi-colored shaped body according to claim 2, comprising 4-10 main and intermediate layers. 4. The multi-colored shaped body according to claim 3, comprising 4-8 main and intermediate layers. 5. The multi-colored shaped body according to claim 1, wherein the main layers have a thickness of more than 0.5 mm to 15 mm. 6. The multi-colored shaped body according to claim 5, wherein the main layers have a thickness of more than 0.5 mm to 10 mm. 7. The multi-colored shaped body according to claim 6, wherein the main layers have a thickness of 0.7 mm-8 mm. 8. The multi-colored shaped body according to claim 1, wherein the intermediate layer has a thickness of 0.01 mm-0.5 mm. 9. The multi-colored shaped body according to claim 8, wherein the intermediate layer has a thickness of 0.1 mm-0.5 mm. 10. The multi-colored shaped body according to claim 9, wherein the intermediate layer has a thickness of 0.2 mm-0.4 mm. 11. The multi-colored shaped body according to claim 1, comprising: (a) SiO2;(b) Al2O3; and(c) K2O and/or Na2O. 12. The multi-colored shaped body according to claim 1, formed from an Al2O3 and/or ZrO2 ceramic material. 13. A dental restoration comprising the multi-colored shaped body according to claim 1. 14. The dental restoration according to claim 13 formed by means of a CAD/CAM technique. 15. The dental restoration according to claim 13, wherein the dental restoration comprises artificial teeth, inlays, onlays, bridges or crowns. 16. A process for the manufacture of a dental restoration, comprising providing the multi-colored shaped body according to claim 1 and processing the shaped body by means of a computer-aided technique to obtain the dental restoration. 17. The process according to claim 16, comprising processing the shaped body by means of a CAD/CAM technique. 18. The process according to claim 16, wherein the dental restoration comprises artificial teeth, inlays, onlays, bridges or crowns.