Method for capturing dental objects

An object, a dental technique applied in the field for capturing dental objects

Active Publication Date: 2022-05-03
SIRONA DENTAL SYSTEMS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A disadvantage of this method is that the sampling of isotropic volume datasets is associated with significantly longer image acquisition times compared to individual MRT cross-sectional images
Furthermore, the image quality of volumetric datasets is degraded due to subsequent image manipulations, precisely due to interpolation losses

Method used

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  • Method for capturing dental objects

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Experimental program
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Embodiment Construction

[0090] figure 1 A diagram is shown illustrating the current method for capturing at least a portion of a dental object 1 , in particular a maxilla 2 and / or a mandible 3 , by means of an MRT device 4 .

[0091] In this case, the first MRT segment image 5 of the first segmented volume 6 is acquired with the center plane 7; the second MRT segment image 8 of the second segmented volume 9 is acquired with the center plane 10; the second MRT segment image 8 is acquired with the center plane 13 A third MRT slice image 11 of the third segmented volume region 12; a fourth MRT slice image 14 of the fourth segmented volume region 15 is acquired with the central plane 16; and a fourth MRT segmented image 14 of the fifth segmented volume region 18 is acquired with the central plane 19 Five MRT fragment images 17 . In this context, the MRT segment images 5 , 8 , 11 , 14 and 17 form segment volumes 6 , 9 , 12 , 18 which overlap to a certain extent. To capture the dental object 1 , the pati...

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Abstract

The invention relates to a method for capturing a dental object (1) having an object volume, specifically at least a maxilla (2) and / or a mandible (3) by means of an MRT device (4). A section wherein a plurality of segments delineating defined segmental volume regions (6, 9, 12, 15, 18) are acquired within the measurement volume (21) of the MRT device (4) by means of the MRT device (4). MRT segment images (5, 8, 11, 14, 17), wherein the segmented volume regions (6, 9, 12, 15, 18) at most partly overlap. In this case, a target surface ( 22 ) is or has been defined. Subsequently, from the individual MRT slice images (5, 8, 11, 14, 17) a surface corresponding to the target surface (22) within the object volume passing through the dental object (1) is generated with the aid of a computer. 2D composite images of 2D aggregated images (29).

Description

technical field [0001] The invention relates to a method for capturing a dental object having an object volume, specifically at least a part of the maxilla and / or the mandible, by means of an MRT device, wherein the MRT device A plurality of MRT slice images depicting defined segmented volume regions are acquired within the measurement volume of the device, wherein the segmented volume regions at most partially overlap. Background technique [0002] The prior art discloses several methods for generating MRT images of dental objects or parts thereof, such as maxilla / mandible. [0003] According to a known method, conventional MRT equipment is used to obtain individual MRT cross-sectional images of cuts such as the jaw arch. If the aim is to acquire the entire jaw arch, for example five individual MRT cross-sectional images will be necessary. [0004] One disadvantage of this method lies in the fact that manual planning of individual MRT cross-sectional images is associated ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/483A61B5/055
CPCA61B5/055G01R33/483G01R33/4833G01R33/4835G01R33/4836A61C9/0046A61B5/7425A61B5/4547A61B5/7278A61B5/742A61B6/14A61B2576/02G06T5/50G06T7/0014G06T11/008G06T2207/10088G06T2207/10116G06T2207/30036
Inventor C.阿布凯T.布劳恩J.保罗V.拉舍
Owner SIRONA DENTAL SYSTEMS
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