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Method and arrangement for forming a dental model

A technology for dental molds and components, applied in dentistry, mold cups, teaching models, etc., which can solve the problems of long manufacturing duration, cost disadvantages, and limited competitiveness.

Active Publication Date: 2013-08-21
DENTSPLY SIRONA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] A disadvantage of the currently available implementations is the high material requirement (which is not a problem in plaster models), which however leads to cost disadvantages for expensive plastic materials (which are necessary for 3D printing or similar methods), which limit the competitiveness
There is also a relatively long production time of several hours, which likewise leads to a high cost burden in connection with the high investment costs of the rapid prototyping machine

Method used

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  • Method and arrangement for forming a dental model
  • Method and arrangement for forming a dental model
  • Method and arrangement for forming a dental model

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Embodiment Construction

[0103] Corresponding to the teachings according to the present invention, in order to manufacture artificial teeth, the lower and upper jaws of the patient are measured in the oral cavity to obtain digital 3D data. The tooth contact field and the surrounding motion field adjacent to the center are then also preferably measured intraorally at least in bite, that is to say in the center of the upper and lower jaw. The centered relationship of the lower and upper jaws to each other is obtained from the scanned sides of the teeth in contact or the scans of the wax bite mold (ie elements arranged between the superimposed upper and lower jaws, such as silicone elements). The data on this may be taken into account if necessary (corresponding to the previous explanation regarding the field of motion of the jaw joint in the separation and, if necessary, the elastic strength field during forced occlusion, with additional consideration of the elastic strength of the individual teeth) In ...

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Abstract

The invention relates to a method for forming a physical or virtual dental model as an aid to the production of a dental prosthesis taking account of the shape of at least one tooth stump present in an upper or lower jaw, of points of contact with the teeth adjacent to the at least one tooth stump, and of the occlusal surface of at least one opposing tooth in the region of the field of movement of the dental prosthesis to be disposed on the at least one tooth stump using digital data relating to the upper and lower jaw measured in a contact-free manner.

Description

technical field [0001] The present invention relates to a method for forming a physiological or virtual dental model as an aid (Hilfsmittel) for the production of artificial teeth (Zahnersatz), and to its production, in which contactless measurement of The shape of at least one tooth root (Zahnstumpf) present in the upper or lower jaw, the point of contact with the tooth adjacent to the at least one tooth root, and the The occlusal surface (Okklusalflaeche) of at least one mating tooth (Gegenzahn) in the region of the playing field of the at least one tooth root. Background technique [0002] Numerous assemblies and methods are known for the manufacture of dentures. Usually, an impression (Abdruck) of the tooth root, its periphery and the jaw containing the denture is made after the dental treatment. The same applies when multiple tooth roots can be provided with dentures. Independently of this, this is usually achieved with silicone casting compounds, although other mate...

Claims

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Application Information

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IPC IPC(8): A61C11/00A61C13/00
CPCA61C11/001A61C13/0004A61C9/0053G16H20/40G06F30/00
Inventor T.埃特尔
Owner DENTSPLY SIRONA INC
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