Dental data mining

• US 8,099,305 B2
• Filed: 10/30/2007
• Issued: 01/17/2012
• Est. Priority Date: 02/27/2004
• Status: Active Grant

• Current Assignee: Align Technology Incorporated
• Original Assignee: Align Technology Incorporated
• Inventors: Kuo, Eric E., Smedt, Philippe De, Nguyen, Cuong Van, Overton, Christopher W.
• Primary Examiner(s): Sereboff, Neal
• Application Number:
  US11/929,112
• Publication Number:
  US 20080085487A1
• Time in Patent Office: 1,540 Days
• Field of Search: 705/2, 705/3, 433/24, 433/126
• US Class Current: 705/3
• CPC Class Codes: A61C 7/002 Orthodontic computer assisted systems
• CPC Class Codes: A61C 7/08 Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch arch-shaped medicament applicators for teeth or gums A61C19/063; mouthguards for protecting the teeth of sportsmen A63B71/085
• CPC Class Codes: B33Y 50/00 Data acquisition or data processing for additive manufacturing
• CPC Class Codes: B33Y 80/00 Products made by additive manufacturing
• CPC Class Codes: G06F 2216/03 Data mining
• CPC Class Codes: G16H 10/60 for patient-specific data, e.g. for electronic patient records
• CPC Class Codes: G16H 20/40 relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
• CPC Class Codes: G16H 30/40 for processing medical images, e.g. editing
• CPC Class Codes: G16H 50/20 for computer-aided diagnosis, e.g. based on medical expert systems
• CPC Class Codes: G16H 50/30 for calculating health indices; for individual health risk assessment
• CPC Class Codes: G16H 50/50 for simulation or modelling of medical disorders
• CPC Class Codes: G16H 50/70 for mining of medical data, e.g. analysing previous cases of other patients

Abstract

Systems and methods are disclosed providing a database comprising a compendium of at least one of patient treatment history; orthodontic therapies, orthodontic information and diagnostics; employing a data mining technique for interrogating said database for generating an output data stream, the output data stream correlating a patient malocclusion with an orthodontic treatment; and applying the output data stream to improve a dental appliance or a dental appliance usage.

Claims

1. A method of monitoring an orthodontic treatment plan, comprising:

receiving a model of at least one tooth of a patient;

creating a treatment plan that includes a tooth path segment for the at least one tooth of the patient, the tooth path segment having an initial position and a target position;

creating a finite element model of a first candidate dental appliance of a particular type to be positioned on the at least one tooth of the patient to achieve a particular tooth path segment of the treatment plan;

computing an effect of the first candidate dental appliance on the at least one tooth using a data mining technique that identifies treatment plans for comparable initial positions and clinical restraints from a database and extracts information including statistically significant treatment outcomes achieved for the identified treatment plans, where the database includes at least one of patient treatment histories, orthodontic therapies, and orthodontic information and diagnostics;

outputting in response to determining that the position is sufficiently close to the target position, a data stream including the finite element model for manufacture of the first candidate dental appliance; and

creating, in response to determining that the position is not sufficiently close to the target position, a finite element model of a second candidate dental appliance of the particular type to achieve the particular tooth path segment of the treatment plan.

2. The method of claim 1, further comprising modifying the treatment plan if the at least one tooth has not reached a position sufficiently close to the target position.

3. The method of claim 1, wherein the finite element model is analyzed using software.

4. The method of claim 3, wherein the software is a crawler configured to obtain a data from the database for indexing.

5. The method of claim 1, further comprising using a data driven model to analyze the finite element model.

6. The method of claim 5, wherein the data driven model is selected from the group consisting of parametric statistical models, non-parametric statistical models, clustering models, nearest neighbor models, regression methods, and engineered neural networks.

7. The method of claim 1, further comprising inputting the output data stream into the database to update the database.

8. The method of claim 7, wherein the data mining technique comprises interrogating updated information in the database.

9. The method of claim 1, further comprising performing a clustering operation to detect a pattern in the data.

10. The method of claim 1, wherein the pattern is recognized using at least one of a Hidden Markov Model (HMM), a dynamic programming model, a neural network, fuzzy logic, and a template matcher.

11. The method of claim 1, wherein the output data stream is related to clinical constraints.

12. The method of claim 11, wherein the clinical constraints include a maximum rate of displacement of a tooth, a maximum force on a tooth, and a desired end position of a tooth.

13. The method of claim 1, wherein the first dental appliance comprises a polymeric shell.

14. The method of claim 1, wherein the first dental appliance is configured to apply a predetermined force on a tooth.

15. The method of claim 1, wherein a computational orthodontic system is used to employ the data mining technique.

16. The method of claim 1, further comprising using the output data stream to confirm that a proposed path can be achieved using the first dental appliance.

17. The method of claim 1, wherein the finite element model is created based on input data describing the at least one tooth and the first dental appliance.

18. A new data mining system for an orthodontic treatment plan for moving a tooth, comprising:

a database comprising data including at least one of treatment plans, outcomes achieved for the treatment plans, patient treatment history;

orthodontic therapies, orthodontic information and diagnostics;

software configured for creating a treatment plan that includes a tooth path segment for at least one tooth of a patient, the tooth path segment having an initial position and a target position;

software configured for creating a finite element model of a first candidate dental appliance of a particular type to be positioned on the at least one tooth of the patient to achieve a particular tooth path segment of the treatment plan;

software configured for computing an effect of the first candidate dental appliance on the at least one tooth using a data mining technique that identifies treatment plans for comparable initial positions and clinical restraints from the database and extracts information including statistically significant treatment outcomes achieved for the identified treatment plans;

software configured for determining whether the at least one tooth will reach a position sufficiently close to the target position based on the computed effect of the first candidate dental appliance on the at least one tooth;

software configured for outputting, in response to determining that the position is sufficiently close to the target position, a data stream including the finite element model for manufacture of the first candidate dental appliance; and

software configured for creating, in response to determining that the position is not sufficiently close to the target position, a finite element model of a second candidate dental appliance of the particular type to achieve the particular tooth path segment of the treatment plan.

19. The system of claim 18, further comprising a path definition module configured to calculate a path of the tooth as it is moved during treatment.

20. The system of claim 18, wherein the output data stream can be fed as an input to update the database.

21. The system of claim 18, wherein the software is configured to compare a final position of the tooth with the treatment plan.

22. The system of claim 18, wherein the output data stream can be used to form a series of dental appliances configured to reposition at least one tooth incrementally.

23. The system of claim 18, wherein the output data stream can be used to modify a dental appliance or the treatment plan using the first dental appliance in an intermediate stage of the treatment plan.

24. The system of claim 18, wherein the software is configured to related the result to clinical constraints.

25. The system of claim 24, wherein the clinical constraints include a maximum rate of displacement of a tooth, a maximum force on a tooth, and a desired end position of a tooth.

26. A method of forming an orthodontic treatment plan, comprising:

receiving a model of at least one tooth of a patient;

creating a treatment plan that includes a tooth path segment for the at least one tooth of the patient, the tooth path segment having an initial position and a target position;

creating a finite element model of a first candidate dental appliance of a particular type to be positioned on the at least one tooth of the patient to achieve a particular tooth path segment of the treatment plan;

computing an effect of the first candidate dental appliance on the at least one tooth using a data mining technique that identifies treatment plans for comparable initial positions and clinical restraints from a database and extracts information including statistically significant treatment outcomes achieved for the identified treatment plans, where the database includes at least one of patient treatment histories, orthodontic therapies, and orthodontic information and diagnostics;

determining whether the at least one tooth will reach a position sufficiently close to the target position based on the computed effect of the first candidate dental appliance on the at least one tooth;

outputting, in response to determining that the position is sufficiently close to the target position, a data stream including the finite element model for manufacture of the first candidate dental appliance; and

creating, in response to determining that the position is not sufficiently close to the target position, a finite element model of a second candidate dental appliance of the particular type to achieve the particular tooth path segment of the treatment plan.

27. The method of claim 26, wherein the data stream comprises clustering the information, the clustering based on at least one of geographical location of a clinician and variables related to training, size and nature of practice of clinician.

28. The method of claim 27, wherein clustering is based on pre-treatment variables of patients.

29. The method of claim 28, further comprising comparing risks within each cluster of patients with completed treatments to new cases to predict treatment outcomes and risks of complications.

30. The method of claim 27, wherein clustering is based on treatment of preferences of a clinician.

31. The method of claim 27, further comprising modeling preferred clinical constraints within each cluster.

32. The method of claim 31, further comprising assigning a clinician without a history to a cluster based on at least one variable.

33. The method of claim 27, wherein the data mining techniques is employed separately within each cluster.

34. The method of claim 27, wherein the clusters are updated as new data arrive.