摘要:
A computer-based prosthodontic method is provided, for enabling a dental practitioner to define a finish line (74) 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 (3D) digital data (310) relating to the patient’s dentition, the 3D data includes data representative of the surface topology of the preparation and its surroundings; generating first finish line data (302) representative of at least a portion of the finish line and superimposing an image of the finish line on an image of the dentition; obtaining second finish line data determined on the basis of input (330) received from a dental practitioner; and using the second finish line data to update the first finish line data (340) and superimposing the updated data on the dentition image.
摘要:
A system and device for positioning and fixing an orthodontic element on a surface of a tooth are provided. The positioning of the element on a tooth is accomplished by: bringing the element into proximity of the tooth while continuously capturing an image of at least the tooth or of the element, and an image of both, once the tooth and the element are proximal to one another; transmitting the image or its representation to a display for displaying a real-life image of the captured image or representation together with indicators providing guidance information on intended position of the orthodontic element on the tooth's surface; positioning the element on a tooth's surface; positioning the element on a tooth's surface according to said indicators such that the element's position coincides with the intended position; and fixing the element onto the tooth. A device for marking a position on a surface of a tooth for later placement of an orthodontic element is also provided.
摘要:
A computer-based prosthodontic method is provided, for enabling a dental practitioner to define a finish line (74) 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 (3D) digital data (310) relating to the patient’s dentition, the 3D data includes data representative of the surface topology of the preparation and its surroundings; generating first finish line data (302) representative of at least a portion of the finish line and superimposing an image of the finish line on an image of the dentition; obtaining second finish line data determined on the basis of input (330) received from a dental practitioner; and using the second finish line data to update the first finish line data (340) and superimposing the updated data on the dentition image.
摘要:
A system and device for positioning and fixing an orthodontic element on a surface of a tooth are provided. The positioning of the element on a tooth is accomplished by: bringing the element into proximity of the tooth while continuously capturing an image of at least the tooth or of the element, and an image of both, once the tooth and the element are proximal to one another; transmitting the image or its representation to a display for displaying a real-life image of the captured image or representation together with indicators providing guidance information on intended position of the orthodontic element on the tooth's surface; positioning the element on a tooth's surface; positioning the element on a tooth's surface according to said indicators such that the element's position coincides with the intended position; and fixing the element onto the tooth. A device for marking a position on a surface of a tooth for later placement of an orthodontic element is also provided.
摘要:
In a computer system that includes a Central Processing Unit and an associated input device, storage device and display device, a method for displaying on the display device a virtual three-dimensional (3D) dental model at desired preset views, for orthodontic use. The virtual 3D dental model is stored on the storage device and is indicative of a 3D structure of an individual's dental arches. The method includes the steps of providing a graphic user interface (GUI) that includes a graphic representation of the dental model and a plurality of graphic symbols each representative of a desired pre-set view of the dental model from a desired direction. Selecting through the input device graphic symbol from among the plurality of graphic symbols. Moving the dental model to a pre-set view which corresponds to the graphic symbol, whilst retaining the model in zoom.
摘要:
The invention provides a method for creating a physical teeth model comprising providing a virtual three dimensional (3D) image of a patient's dentition or part of it; and preparing a physical model of the jaws, based on information from said virtual 3D image, wherein said physical model is a positive model or a negative model from which a positive working model can be produced, said model comprising two members, one representing the upper jaw and the other the lower jaw, and both members are produced with markings or an alignment arrangement to permit proper occlusion alignment of the two members of said positive working model.
摘要:
The invention provides a method for creating a physical teeth model comprising providing a virtual three dimensional (3D) image of a patient's dentition or part of it; and preparing a physical model of the jaws, based on information from said virtual 3D image, wherein said physical model is a positive model or a negative model from which a positive working model can be produced, said model comprising two members, one representing the upper jaw and the other the lower jaw, and both members are produced with markings or an alignment arrangement to permit proper occlusion alignment of the two members of said positive working model.
摘要:
A system and device for positioning and fixing an orthodontic element on a surface of a tooth are provided. The positioning of the element on a tooth is accomplished by: bringing the element into proximity of the tooth while continuously capturing an image of at least the tooth or of the element, and an image of both, once the tooth and the element are proximal to one another; transmitting the image or its representation to a display for displaying a real-life image of the captured image or representation together with indicators providing guidance information on intended position of the orthodontic element on the tooth's surface; positioning the element on a tooth's surface; positioning the element on a tooth's surface according to said indicators such that the element's position coincides with the intended position; and fixing the element onto the tooth. A device for marking a position on a surface of a tooth for later placement of an orthodontic element is also provided.
摘要:
A computer-based prosthodontic method is provided, for enabling a dental practitioner to define a finish line (74) 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 (3D) digital data (310) relating to the patient’s dentition, the 3D data includes data representative of the surface topology of the preparation and its surroundings; generating first finish line data (302) representative of at least a portion of the finish line and superimposing an image of the finish line on an image of the dentition; obtaining second finish line data determined on the basis of input (330) received from a dental practitioner; and using the second finish line data to update the first finish line data (340) and superimposing the updated data on the dentition image.
摘要:
A device for determining the surface topology and associated colour 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 means for providing colour data for each of the points of the array, while the spatial disposition of the device with respect to the structure is maintained substantially unchanged. A processor combines the colour data and depth data for each point in the array, thereby providing a three-dimensional colour virtual model of the surface of the structure. A corresponding method for determining the surface topology and associated colour of a structure is also provided.