Method and system providing improved data matching for virtual planning

Patent metadata

Field	Value
Publication number	US-9348973-B2
Application number	US-201013321131-A
Country	US
Kind code	B2
Filing date	May 17, 2010
Priority date	May 18, 2009
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

A scanning structure having at least one surface with a shape adapted to conform to a portion of a craniofacial space is described. The scanning structure includes at least one surface object, which is at least partly identifiable from a first set of data, and where a first coordinate is identifiable based on the surface object. The scanning structure includes at least one volume object, which is at least partly identifiable from a second set of data, and where a second coordinate is identifiable based on the volume object. The surface object can be arranged in relation to the at least one volume object such that the first coordinate and the second coordinate have a pre-defined relationship to each other.

First claim

What is claimed is:

1. A method of facilitating matching of a first set of data and a second set of data, stored in a data storage, related to a region of interest in a craniofacial space, suitable for planning a dental restorative procedure, said method comprising
(a) identifying at least a portion of a surface object in said first set of data retrieved from the data storage;
(b) calculating, via a computing device, a first coordinate based on said surface object;
(c) identifying at least a portion of a volume object concealed in an oral cavity in said second set of data retrieved from the data storage;
(d) calculating, via a computing device, a second coordinate based on said volume object, the second coordinate including a point within the volume object; wherein said first and second coordinate have a pre-defined relationship to each other; and
(e) outputting the first and second coordinates for planning the dental restorative procedure or for producing a product for use in the craniofacial space,
wherein both said surface object and said volume object are affixed to or integral parts of a scanning structure,
wherein the scanning structure is a dental impression tray or a radiographic guide,
wherein the first set of data is provided by scanning the impression tray including a dental impression, or by scanning the radiographic guide,
wherein the dental impression or radiographic guide comprises information about an outer topography of soft tissue in said region of interest.

2. The method of claim 1 ,
wherein said first coordinate is a center point of said surface object, and said second coordinate is a longitudinal central axis of said volume object, or
wherein said first coordinate is a central axis through a center point of said surface object, and said second coordinate is a longitudinal central axis of said volume object, and wherein said surface object and said volume object are arranged co-axially, such that said first coordinate and said second coordinate are a common center axis, or
wherein said surface object and said volume object are arranged concentrically and said first coordinate and said second coordinate have a common center point.

3. The method of claim 1 , wherein said pre-defined relationship comprises that said first coordinate and second coordinate coincide.

4. The method of claim 1 , wherein said volume object is a volume of air at least partly enclosed by said surface object.

5. The method of claim 1 ,
wherein said surface object and said volume object have a substantially identical mating interface, or
wherein said surface object and said volume object have a substantially identical mating interface and wherein said volume object is a recess in said surface object, or
wherein said surface object and said volume object have a substantially identical mating interface and wherein said volume object is a recess in said surface object, and wherein said recess is provided with a releasably attachable closing cap, such that said recess is enclosed when said cap is in position at said recess.

6. The method of claim 1 , wherein said surface object and said volume object are affixed to an anatomically fixed structure.

7. The method of claim 6 , wherein said anatomically fixed structure is a tooth or a splint.

8. The method of claim 1 , wherein said first set of data of said surface object is generated by scanning said surface object using a first, non-material penetrating, 3D data generating device; and wherein said second set of data of said volume object is generated by using a material penetrating, 3D data generating device.

9. A method of matching a first and a second set of data related to a region of interest in a craniofacial space, said method comprising said method according to claim 1 , and
transforming a coordinate system of said first set of data to a coordinate system of said second set of data based on said pre-defined relationship between said first coordinate and said second coordinate, for generating a matched data set of said region of interest in said craniofacial space.

10. A method of virtually planning a craniofacial treatment procedure, said method of virtually planning comprising said method of matching according to claim 9 , and performing said virtual planning based on said matched data set; and providing a production data set as a result of said virtual planning based on said matched data set for production of at least one product to be used in said craniofacial treatment procedure.

11. A method of producing a product for use in a craniofacial treatment procedure, said method comprising producing said product, at least partly based on said production data set of claim 10 .

12. The method of claim 1 , wherein calculating a first coordinate based on said surface object comprises calculating said first coordinate based on a CAD data of said surface object.

13. The method of claim 1 ,
wherein the first set of data is obtained from a non-material penetrating scan having a first resolution,
wherein the second set of data is obtained from a material penetrating scan having a second resolution, and
wherein the second resolution is lower than the first resolution.

14. A computer program product, executable on a programmable device containing instructions, which when executed, performs a method of facilitating matching of a first set of data and a second set of data related to a region of interest in a craniofacial space, wherein said computer program is storeable on a non-transitory computer-readable medium, and configured to facilitate matching of a first set of data and a second set of data related to a region of interest in a craniofacial space, said computer program product comprising:
(a) a first code segment for identifying at least a portion of a surface object in said first set of data;
(b) a second code segment for calculating a first coordinate based on said surface object;
(c) a third code segment for identifying at least a portion of a volume object concealed in an oral cavity in said second set of data;
(d) a fourth code segment for calculating a second coordinate based on said volume object, the second coordinate including a point within the volume object; and
(e) a fifth code segment for outputting the first and second coordinates for planning a dental restorative procedure or for outputting the first and second coordinates for producing a product for use in the craniofacial space,
wherein said first and second coordinate have a pre-defined relationship to each other,
wherein both said surface object and said volume object are affixed to or integral parts of a scanning structure,
wherein the scanning structure is a dental impression tray or a radiographic guide,
wherein the first set of data is provided by scanning the impression tray including a dental impression, or by scanning the radiographic guide,
wherein the dental impression or radiographic guide comprises information about an outer topography of soft tissue in said region of interest.

15. The computer program product of claim 14 ,
wherein the first set of data is obtained from a non-material penetrating scan having a first resolution,
wherein the second set of data is obtained from a material penetrating scan having a second resolution, and
wherein the second resolution is lower than the first resolution.

16. A scanning structure having at least one surface with a shape adapted to conform to a portion of a craniofacial space, said scanning structure comprising:
at least one surface object, which is at least partly identifiable from a first set of dat

Assignees

• Pettersson Andreas
• Nilsson Urban
• Nobel Biocare Services Ag

Inventors

• Pettersson Andreas
• Nilsson Urban

Classifications

• A61C7/002

  Orthodontic computer assisted systems · CPC title

• A61C1/084

  of implanting tools · CPC title

• G06F19/3437 Primary

  Physics · mapped topic

• A61C9/004

  Means or methods for taking digitized impressions · CPC title

• G16H50/50 Primary

  for simulation or modelling of medical disorders · CPC title