...that in 1800 ether was first used by partyers as a fun diversion? Sniffing the gas led to hilarious and raucous laughter as people watched each other become more and more intoxicated and silly. Several doctors independently realized the value ether would have to anesthetize surgery patients. Of those who claimed rights to the "discovery," none had a happy ending. One had a seizure and died defending his rights. Another spent his life in an asylum because he had been denied acclaim. A third became addicted to chloroform and, in a New York City jail, he soaked a cloth in the drug, severed an artery and bled to death.
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| Number | Title | Issue Date |
| 8145340 | Method and system for designing and producing dental prostheses and appliances A virtual model of an intraoral cavity is provided, wherein this process is initialized by a dental clinic, and the design and manufacture of a suitable dental prosthesis for the intraoral cavity is shared between a dental lab and a service center. ... | 03/27/2012 |
| 8102538 | Method and apparatus for colour imaging a three-dimensional structure Provided is a device for determining the surface topology and associated color of a structure, such as a teeth segment, including a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an imag... | 01/24/2012 |
| 8041439 | Method for manipulating a dental virtual model, method for creating physical entities based on a dental virtual model thus manipulated, and dental models thus created A 3D virtual model of an intra oral cavity in which at least a part of a finish line of a preparation is obscured is manipulated in virtual space by means of a computer or the like to create, recreate or reconstruct finish line data and other geometrical correspondi... | 10/18/2011 |
| 7946846 | Dental imaging instrument having air stream auxiliary A dental instrument and method for imaging the three-dimensional topography of one or more teeth in the oral cavity of an individual is provided. The instrument includes a probe insertable into the oral cavity to receive the image of these surfaces which can then be... | 05/24/2011 |
| 7944569 | Method and apparatus for imaging three-dimensional structure An apparatus for determining surface topology of a portion of a three-dimensional structure is provided, that includes a probing member, an illumination unit, a light focusing optics, a translation mechanism, a detector and a processor. ... | 05/17/2011 |
| 7942671 | Method for preparing a physical plaster model The invention provides a method for creating a physical teeth model. The method comprises the following steps: providing a virtual three dimensional (3D) representation of a patient's dentition that comprises at least a region of the teeth that includes a tooth stum... | 05/17/2011 |
| 7890290 | System and method for scanning an intraoral cavity According to the invention, a method and system are provided for scanning, and for facilitating scanning of, an intraoral cavity. The target parts of the intraoral cavity that it is desired to have scanned are identified, and the spatial relationships between a scan... | 02/15/2011 |
| 7866978 | Virtual orthodontic treatment A method for virtual orthodontic treatment is provided in which a virtual set of orthodontic components is associated, in a virtual space, with a first virtual three-dimensional image of teeth, and then by a set of rules which define the effect of the set of compone... | 01/11/2011 |
| 7862336 | Method and system for providing feedback data useful in prosthodontic procedures associated with the intra oral cavity Feedback data useful in prosthodontic procedures associated with the intra oral cavity is provided. First, a 3D numerical model of the target zone in the intra oral cavity is provided, and this is manipulated so as to extract particular data that may be useful in a ... | 01/04/2011 |
| 7796277 | Method and apparatus for imaging three-dimensional structure An apparatus for determining surface topology of a portion (26) of a three-dimensional structure is provided, that includes a probing member, an illumination unit, a light focusing optics, a translation mechanism, a detector and a processor. ... | 09/14/2010 |
| 7738989 | Method and system for designing and producing dental prostheses and appliances A virtual model of an intraoral cavity is provided, wherein this process is initialized by a dental clinic, and the design and manufacture of a suitable dental prosthesis for the intraoral cavity is shared between a dental lab and a service center. ... | 06/15/2010 |
| 7734368 | Method for manipulating a dental virtual model, method for creating physical entities based on a dental virtual model thus manipulated, and dental models thus created A 3D virtual model of an intra oral cavity in which at least a part of a finish line of a preparation is obscured is manipulated in virtual space by means of a computer or the like to create, recreate or reconstruct finish line data and other geometrical correspondi... | 06/08/2010 |
| 7724378 | Method and apparatus for colour imaging a three-dimensional structure A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition... | 05/25/2010 |
| 7698068 | Method for providing data associated with the intraoral cavity A method for providing data useful in procedures associated with the oral cavity, in which at least one numerical entity representative of the three-dimensional surface geometry and color of at least part of the intra-oral cavity is provided and then manipulated to ... | 04/13/2010 |
| 7689310 | System and method for manufacturing a dental prosthesis and a dental prosthesis manufactured thereby A dental prosthesis is made by externally machining successive layers of wax, each of which is formed on a previous prosthesis layer and/or on a coping. Each wax layer is used to form a mold in situ over the previous prosthesis layer/coping, and the appropriate pros... | 03/30/2010 |
| 7630089 | Method and apparatus for imaging three-dimensional structure An apparatus for determining surface topology of a portion (26) of a three-dimensional structure is provided, that includes a probing member, an illumination unit, a light focusing optics, a translation mechanism, a detector and a processor. ... | 12/08/2009 |
| 7556497 | Placing an orthodontic element on a tooth surface The present application is related to a method for marking an intended position on a surface where an orthodontic element is to be placed and fixed. The method includes: providing a marking device with a marking member for making a visible mark on a surface, the dev... | 07/07/2009 |
| 7555403 | Method for manipulating a dental virtual model, method for creating physical entities based on a dental virtual model thus manipulated, and dental models thus created A 3D virtual model of an intra oral cavity in which at least a part of a finish line of a preparation is obscured is manipulated in virtual space by means of a computer or the like to create, recreate or reconstruct finish line data and other geometrical correspondi... | 06/30/2009 |
| 7547873 | Apparatus and method for providing high intensity non-coherent light and for speckle reduction An apparatus is adapted for confocal imaging of a non-flat specimen, and includes a light source for producing a light beam, imaging optics adapted to focus the light beam into at least one spot on a surface of a specimen, and a detector adapted to receive and detec... | 06/16/2009 |
| 7545372 | Method and system for imaging a patient's teeth arrangement The invention provides a method and system for obtaining a three-dimensional representation of a patient's teeth arrangement. A three-dimensional physical teeth model is provided, having a surface relief corresponding to the patient's teeth arrangement. Computerized... | 06/09/2009 |
| 7536234 | Method and system for manufacturing a dental prosthesis A method and system are provided for manufacturing a dental prosthesis, in which the machining operations therefor may be optimized. Dimensional data of at least one critical parameter of the workpiece from which the crown is to be manufactured is determined and com... | 05/19/2009 |
| 7511829 | Method and apparatus for colour imaging a three-dimensional structure A device for determining the surface topology and associated color of a structure, such as a teeth segment, includes a scanner for providing depth data for points along a two-dimensional array substantially orthogonal to the depth direction, and an image acquisition... | 03/31/2009 |
| 7507088 | Method for comparing orthodontic element placement A method for comparing between an orthodontic element's actual position on the surface of a tooth and a proper position comprise monitoring the element, the tooth or both once the element and the tooth are proximal to one another by an image acquisition unit which t... | 03/24/2009 |
| 7488174 | Method for defining a finish line of a dental prosthesis A computer-based prosthodontic method is provided, for enabling a dental practitioner to define a finish line of a dental prosthesis of at least one tooth to be fitted over a tooth preparation. The method comprises the following steps: providing a three-dimensional ... | 02/10/2009 |
| 7477402 | Method and apparatus for imaging three-dimensional structure Determining surface topology of a portion (26) of a three-dimensional structure is provided. An array of incident light beams (36) passing through a focusing optics (42) and a probing face is shone on said portion. The focusing optics defines on... | 01/13/2009 |