The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 24, 2010
Filed:
Oct. 17, 2006
Christian Schmidt, Bensheim, DE;
Juha Kotila, Turku, FI;
Christian Schmidt, Bensheim, DE;
Juha Kotila, Turku, FI;
Sirona Dental Systems GmbH, Bensheim, DE;
Abstract
The invention relates to a process for the production of a dental prosthetic item () by means of local sintering, in which the dental prosthetic item () is produced layer-wise by energy input, by means of an energy transferring beam (), into a layer of powder () of a sinterable material. One or more parameters of the sintering process are modified during production such that the material () is regionally sintered to various degrees to produce denser material in the marginal region () of a sintered layer of said dental prosthetic item () than is produced in the inner region () of said sintered layer. The invention furthermore relates to a dental prosthetic item () of a material subjected to local sintering, which material is sintered in a marginal region () of the dental prosthetic item () to a greater density than in an inner region ().