Straumann Holding Ag

Frank Homann

Uwe Lawitschka

Philippe Habersetzer

Benjamin Straub

Michael De Wild

A process for providing a topography to the surface of a dental implant, the surface being made of a ceramic material having yttria-stabilized zirconia, the process including: providing a macroscopic roughness to the surface of the dental implant by a mechanical process and/or injection molding technique; and etching at least a part of the roughened surface, wherein etching is carried out using an etching solution having hydrofluoric acid at a temperature of 70&#xb0; C. at least, such that discrete grains or agglomerates of grains are removed from the yttria-stabilized zirconia, thereby forming recesses and cavities in the roughened surface is disclosed.

Process for providing a topography to the surface of a dental implant

Method for determining a position and an orientation of a dental implant includes scanning a surface of a scan body connected to the implant wherein a plurality of data points is determined which correspond to positions of points that are located on the surface of the scan body. The method further included reconstructing at least three planes based on the data points, reconstructing intersection information of the reconstructed planes, where the intersection information includes the reconstruction of straight intersection lines and of intersection points, and determining the position and the orientation of the implant based on the reconstructed intersection information.

Determining position and orientation of a dental implant

A dental implant having a surface made of a ceramic material. The dental implant is characterized in that the surface has a topography defined by a Core Roughness Depth Sof less than 1 &#x3bc;m.

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Munich, Germany

Frank Homann