| CPC B29C 45/585 (2013.01) [A61C 8/005 (2013.01); A61C 13/0006 (2013.01); B22F 3/225 (2013.01); B28B 1/087 (2013.01); B28B 1/24 (2013.01); B29C 45/0001 (2013.01); B29C 45/62 (2013.01); B29C 45/74 (2013.01); B22F 2202/01 (2013.01); B29K 2103/06 (2013.01); B29L 2031/7532 (2013.01)] | 13 Claims |

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1. A process for preparing a dental implant or a dental implant abutment by powder injection molding, the process comprising: a) providing a feedstock containing a powder of a ceramic, a metal or a metal alloy dispersed in a binder, b) heating the feedstock, and c) injecting the heated feedstock into a mold cavity of a mold, where the heated feedstock cools and hardens to a configuration of the mold cavity, wherein: the heating of the feedstock according to step b) is at least partially carried out in a barrel, from which the heated feedstock is transferred through a transfer channel to the mold cavity of the mold, the barrel and the transfer channel being vibrated at a frequency corresponding to a resonant frequency of the barrel and the transfer channel by receiving vibrational energy transmitted to the barrel and the transfer channel by a transducer, step c) is carried out under an application of vibrational energy onto the feedstock, and the mold is subjected to vibration at a frequency corresponding to a resonant frequency of the mold, wherein the mold comprises a first mold part and a second mold part, which are retained in contact with each other by means of a clamping unit under an effect of a clamping force in a range of from 125 kN to 500 kN to form a parting line in the form of a parting surface, and points of application of the clamping force in the first mold part and the second mold part, respectively, lie at a distance from the parting surface in a range of 5 mm to 20 mm.
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