1
Joachim Pfeiffer, Axel Schwotzer: 3-D camera for recording surface structures, in particular for dental purposes. Sirona Dental Systems, Foley & Lardner, April 26, 2005: US06885464 (80 worldwide citation)

A 3-D camera and a method for recording surface structures on an object of interest by triangulation, in particular for dental purposes. The camera provides for producing a group of light beams in order to illuminate the object of interest via a projection optical path, an image sensor for receiving ...


2
Franz Scherer, Joachim Pfeiffer: Method for producing a drill assistance device for a tooth implant. Sirona Dental Systems, Dykema Gossett PLLC, November 20, 2001: US06319006 (70 worldwide citation)

A method for producing a drill assistance device for a tooth implant includes the process steps of, initially the taking of an x-ray picture of the jaw and the compilation of a corresponding measured data record; then a three-dimensional, optical measurement of the visible surfaces of the jaw and of ...


3
Josef Ploetz, Manfred Franetzki: X-ray diagnostic apparatus for tomosynthesis having a detector that detects positional relationships. Sirona Dental Systems & Co KG, Sughrue Mion Zinn Macpeak & Seas PLLC, October 27, 1998: US05828722 (69 worldwide citation)

An diagnostic apparatus for generating X-ray exposures for tomosynthesis includes a position detector (2, 4) for registering the mutual positional relationship between the radiation transmitter (1) and/or the radiation receiver (3) and/or the object (7) under examination. The position detector (2, 4 ...


4
Josef Ploetz: Method for producing tomosynthesis exposures employing a reference object formed by a region of the examination subject. Sirona Dental Systems & Co KG, Hill & Simpson, March 2, 1999: US05878104 (51 worldwide citation)

In a method for producing a tomosynthesis exposure a reference object is used which is formed by a region of the examination subject. It is thus possible to determine the distance of the beam transmitter to the beam receiver and to the examination subject, the irradiation angle, and the direction of ...


5
Michael Doebert, Tilman Phleps, Uwe Zeller: Sensor that can be placed intraorally in the mouth of a patient for the production of tooth/jaw exposures of a patient. Sirona Dental Systems & Co KG, Schiff Hardin & Waite, January 2, 2001: US06169781 (49 worldwide citation)

A sensor that can be placed intraorally in the mouth of a patient for the production of tooth/jaw exposures of a patient has a narrow housing, approximately rectangular in a top view, for an image detector and a control circuit board to which lines are connected, which can be connected, with a free ...


6
Joachim Pfeiffer, Volker Wedler, Ulrich Orth, Reinhard Pieper: Method for detecting and representing one or more objects, for example teeth. Sirona Dental Systems, Dykema Gossett PLLC, March 7, 2006: US07010150 (46 worldwide citation)

A method for detecting and representing one or more objects, such as teeth, their preparations and their immediate environment, using a camera. A first recording is made wherein a still image is produced. The still image is blended into a current, mobile search image in at least one sub-area in the ...


7
Josef Ploetz: X-ray diagnostics apparatus for tomosynthesis having a reference object in fixed relationship to a radiation emitter. Sirona Dental Systems & Co KG, Hill & Simpson, April 20, 1999: US05896437 (45 worldwide citation)

An X-ray diagnostics apparatus for tomosynthesis has a radiation emitter and a reference object exclusively connected thereto so that the reference object has a fixed reference relationship to the radiation emitter. It is thus possible to determine the spacing of the radiation emitter from the radia ...


8
Josef Ploetz: Method and apparatus for producing tomosynthesis exposures employing a reference object composed of a number of sub-objects. Sirona Dental Systems & Co KG, Hill & Simpson, December 21, 1999: US06005907 (43 worldwide citation)

In a method and an apparatus for producing a tomosynthesis exposure of an examination subject, an X-ray beam is directed at the subject from different directions and a reference object composed of at least two sub-objects is disposed in the X-ray beam together with the subject. X-rays attenuated by ...


9
Klaus K├Ârner, Christian Kohler, Evangelos Papastathopoulus, Wolfgang Osten: Method and arrangement for a rapid and robust chromatic confocal 3D measurement technique. Sirona Dental Systems, Dykema Gossett pLLC, August 31, 2010: US07787132 (41 worldwide citation)

A chromatic confocal technique and apparatus for the rapid three-dimensional measurement of an object shape, particularly of a tooth in a patient's jaw, using an array of polychromatic point light sources, a planar detector matrix, a beam splitter for lateral spectral separation, and an objective fo ...


10
Guenther Pech, Josef Pabst: Apparatus for technical diagnosis of errors in a medical/dental apparatus. Sirona Dental Systems & Co KG, Hill & Simpson, September 22, 1998: US05812397 (41 worldwide citation)

An apparatus having a plurality of components with printed circuit boards (PCB) having electronic circuits that act on electrical and/or electromechanical function elements is provided. The PCBs communicate with one another via a serial communication bus. The components have analog and digital signa ...