Method for detecting a dental object

An object, dental technology, applied in the field of capturing dental objects, to achieve the effect of shortening the image acquisition time

An object, dental technology, applied in the field of capturing dental objects, to achieve the effect of shortening the image acquisition time

CN108226833AActive Publication Date: 2018-06-29SIRONA DENTAL SYSTEMS
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  • Method for detecting a dental object

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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

Disclosed herein is a method for capturing a dental object (1) with an object volume, in particular, at least one part of a maxilla (2) and / or a mandible (3), with the use of an MRT apparatus (4). A plurality of MRT segment images (5, 8, 11, 14, 17), which depict the defined segmented volume regions (6, 9, 12, 15, 18) are acquired by an MRT apparatus (4) within a measurement volume (21) of the MRTapparatus (4). The segmented volume regions (6, 9, 12, 15, 18) overlap no more than partially. In this case a target surface (22) is defined or has already been defined. Then a two dimensional composite image (29), which corresponds to a two dimensional aggregate image through the target surface (22) within the object volume of the dental object (1), is generated in a computer-aided manner from the individual MRT segment images (5, 8, 11, 14, 17).

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

Patent Timeline
29 Jun 2018
Publication
CN108226833A
IPC
G01R33/483; A61B5/055
CPC
A61B5/055; G01R33/483; G01R33/4833; G01R33/4835; G01R33/4836; A61C9/0046; A61B5/7425; A61B5/4547
Inventors
C.阿布凯; T.布劳恩