Claims
- 1. A process for manufacturing a dental prosthetic comprising the steps of:
- forming a molded-body precursor of the prosthetic by machine-processing a porosity-sintered molded blank by CAD/CAM methods to accurately fit prepared definition according to data on a patient's dental situation, said porosity-sintered molded blank consisting essentially of at least one oxide-ceramic material selected from the group consisting of aluminum oxide, magnesium oxide, zirconium oxide, and titanium oxide and, optionally, a siliceous additive;
- compacting the molded-body precursor by glass infiltration to form the prosthetic.
- 2. The process of claim 1 further comprising the step of either
- jacketing the molded-body precursor or
- jacketing the prosthetic.
- 3. The process of claim 2 wherein the data is obtained from dental impressions of the patient.
- 4. The process according to claim 2 wherein the data is directly registered on-line.
- 5. The process according to claim 2 wherein the prosthetic is selected from the group consisting of a bridge, a cap, an inlay, an onlay, a veneer, or a part thereof.
- 6. The method of claim 2 wherein the porosity-sintered molded blank is obtained by a method selected from the group consisting of form-molding and pressing, injection-molding, simultaneous form-molding and pressing, and press-molding a composition comprising a powder of the at least one oxide-ceramic material.
- 7. The method of claim 2 wherein the porosity-sintered molded blank is obtained by a process comprising the steps of (a) injection-molding a powder of the at least one oxide-ceramic material, optionally combined with a binder followed by removing the binder after injection-molding, to form a green body and (b) porosity-sintering the green body.
- 8. The method of claim 2 wherein the porosity-sintered molded blank is obtained by a process comprising the steps of (a) dry-pressing granulates of the at least one oxide ceramic material, optionally combined with a binder followed by removal of the binder after dry-pressing, to form a green body and (b) porosity-sintering the green body.
- 9. The process of claim 1 wherein the data is obtained from dental impressions of the patient.
- 10. The process according to claim 1 wherein the data is directly registered on-line.
- 11. The process according to claim 1 wherein the prosthetic is selected from the group consisting of a bridge, a cap, an inlay, an onlay, a veneer, or a part thereof.
- 12. The method of claim wherein the porosity-sintered molded blank is obtained by a method selected from the group consisting of form-molding and pressing, injection-molding, simultaneous form-molding and pressing, and press-molding a composition comprising a powder of the at least one oxide-ceramic material.
- 13. The method of claim 1 wherein the porosity-sintered molded blank is obtained by a process comprising the steps of (a) injection-molding a powder of the at least one oxide-ceramic material, optionally combined with a binder followed by removing the binder after injection-molding, to form a green body and (b) porosity-sintering the green body.
- 14. The method of claim 1 wherein the porosity-sintered molded blank is obtained by a process comprising the steps of (a) dry-pressing granulates of the at least one oxide ceramic material, optionally combined with a binder followed by removal of the binder after dry-pressing, to form a green body and (b) porosity-sintering the green body.
Priority Claims (2)
Number |
Date |
Country |
Kind |
42 39 549 |
Nov 1992 |
DEX |
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42 42 007 |
Dec 1992 |
DEX |
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Parent Case Info
This application is a continuation of application Ser. No. 08/157,541, filed Nov. 26, 1993, now abandoned.
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Continuations (1)
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Number |
Date |
Country |
Parent |
157541 |
Nov 1993 |
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