METHOD AND SYSTEM FOR DENTAL PLANNING

• US 20100151417A1
• Filed: 05/21/2008
• Published: 06/17/2010
• Est. Priority Date: 05/25/2007
• Status: Active Grant

• Current Assignee: Nobel Biocare Services AG (Envista Holdings Corporation)
• Original Assignee: Nobel Biocare Services AG (Envista Holdings Corporation)
• Inventors: Andersson, Matts, Nilsson, Urban
• Granted Patent: US 8,425,229 B2
• Time in Patent Office: Days
• US Class Current: 433/167
• CPC Class Codes: A61B 2034/102 Modelling of surgical devices, implants or prosthesis
• CPC Class Codes: A61B 2034/105 Modelling of the patient, e.g. for ligaments or bones
• CPC Class Codes: A61B 34/10 Computer-aided planning, simulation or modelling of surgical operations
• CPC Class Codes: A61B 34/25 User interfaces for surgical systems
• CPC Class Codes: A61C 1/084 of implanting tools
• CPC Class Codes: A61C 13/0004 Computer-assisted sizing or machining of dental prostheses
• CPC Class Codes: A61C 5/20 Repairing attrition damage, e.g. facets
• CPC Class Codes: A61C 5/70 Tooth crowns; Making thereof
• CPC Class Codes: A61C 7/002 Orthodontic computer assisted systems
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders

Abstract

Methods are provided for computer-based planning of a dental restorative procedure of a patient having a craniooral space and/or of at least one dental component for the dental restorative procedure. Certain methods include determining a first spatial position of a first boundary surface, in the craniooral space, of a first dental unit of a dental restoration; determining a second spatial position of a second boundary surface, in the craniooral space remote the first boundary surface, of a second dental unit of the dental restoration; and determining a third spatial position of at least a portion of the at least one dental component relative at least one of the first and second spatial positions.

Claims

1. A method for computer-based planning of a dental restorative procedure for a patient having a craniooral space and/or for computer-based planning of at least one dental component for said dental restorative procedure, said method comprising:

determining a first spatial position of a first boundary surface, in said craniooral space, of a first dental unit of a dental restoration;

determining a second spatial position of a second boundary surface, in said craniooral space remote said first boundary surface, of a second dental unit of said dental restoration; and

determining a third spatial position of at least a portion of said at least one dental component relative at least one of said first and second spatial positions.

2. The method according to claim 1, comprising determining at least one of said first and second spatial positions as a final spatial position thereof.

3. The method according to claim 1, comprising adjusting said third spatial position in dependence of an adjustment of at least one of said first and second spatial positions.

4. The method according to claim 1, wherein said dental component is a bridge framework, having a first outer surface to be arranged apically at a first connection interface, and a second outer surface to be arranged coronally at a second connection interface.

5. The method according to claim 4, wherein said first dental unit is a dental implant having said first boundary surface to be arranged coronally at said first connection interface and said second dental unit is a veneering having a first outer surface oriented towards an occlusion line of said patient and a second outer surface at said second connection interface.

6. The method according to claim 5, comprising:

determining said first spatial position as a final spatial position thereof;

establishing said first connection interface as a final first connection interface;

determining said third spatial position relative said final first connection interface; and

establishing said second connection interface as a final second connection interface.

7. The method according to claim 4, wherein said first dental unit is a veneering having said first boundary surface to be arranged coronally at an occlusion line of said patient and a second outer surface to be arranged at said second connection interface, and wherein said second dental unit is a dental implant having a first outer surface oriented coronally at said first connection interface.

8. The method according to claim 7, comprising:

determining a position and angulation of said dental implant; and

establishing said first connection interface as a final first connection interface.

9. The method according to claim 7, comprising determining said third spatial position of said second outer surface of said bridge framework relative said first spatial position of said first boundary surface and thereby establishing said second connection interface as a final second connection interface.

10. The method according to claim 5, comprising:

manually fine tuning a position of said dental implant or said veneering; and

automatically adapting the corresponding connection interfaces of the remaining dental units of the dental restoration.

11. The method according to claim 1, further comprising:

identifying at least three anatomically fixed reference points that are anatomically stable in a craniooral data set acquired from said patient; and

determining a position in space of at least one tooth having one of said first spatial position and second spatial position from said anatomically fixed reference points.

12. The method according to claim 1, wherein said dental component is a surgical template, wherein a top surface of said dental implant is said second boundary surface, and wherein said portion of said surgical template is a drill guide having said third spatial position relative said determined second position of said dental implant.

13. The method according to claim 1, comprising determining said third spatial position by a morphing technique.

14. The method according to claim 1, further comprising producing a bridge framework based on data obtained from said determined spatial positions.

15. The method according to claim 1, further comprising producing a dental veneering based on data obtained from said determined spatial positions.

16. The method according to claim 1, further comprising:

producing a bridge structure comprising a bridge framework and a veneering based on data obtained from said determined spatial positions; and

attaching said veneering to said bridge framework.

17. The method according to claim 1, further comprising producing a surgical template comprising at least one drill guide based on data obtained from said determined spatial positions.

18. The method according to claim 5, comprising automatically adapting a shape of a bridge framework, the shape of a dental veneering, and the position of a dental implant.

23. A graphical user interface comprising components for visualizing the method according to claim 1.

24. A medical workstation configured to carry out the method of claim 1.

19. A system for computer-based planning of a dental restorative procedure of a patient having a craniooral space and/or for computer-based planning of at least one dental component for said dental restorative procedure, said system comprising:

a first unit configured to determine a first spatial position of a first boundary surface, in said craniooral space, of a first dental unit of a dental restoration;

a second unit configured to determine a second spatial position of a second boundary surface, in said craniooral space remote said first boundary surface, of a second dental unit of said dental restoration; and

a third unit configured to determine a third spatial position of at least a portion of said dental component relative at least one of said first and second spatial positions.

20. A computer program for computer-based planning of a dental restorative procedure of a patient having a craniooral space and/or for computer-based planning of at least one dental component for said dental restorative procedure, said computer program comprising:

a first code segment configured to determine a first spatial position of a first boundary surface, in said craniooral space, of a first dental unit of a dental restoration;

a second code segment configured to determine a second spatial position of a second boundary surface, in said craniooral space remote said first boundary surface, of a second dental unit of said dental restoration; and

a third code segment configured to determine a third spatial position of at least a portion of said dental component relative at least one of said first and second spatial positions.

22. A computer readable medium having embodied thereon the computer program of claim 20.

21. (canceled)

25. (canceled)