IP Library Granted Patent US 11,147,652
Granted Patent B2
US 11,147,652 · App. 14/804,153 · Granted Oct 19, 2021

Method for tracking, predicting, and proactively correcting malocclusion and related issues

Inventors: David Mason (Morgan Hill, CA); Douglas Brandt (San Pablo, CR)
Assignee: ALIGN TECHNOLOGY, INC.
A61C7/002A61C7/08G06F19/00G16H50/50
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Quick Facts
Patent No.
US 11,147,652
App. No.
14/804,153
Granted
Oct 19, 2021
Kind
B2
Abstract

Methods and systems for predicting a future dental or orthodontic condition(s) are provided. In one aspect, a computer-implemented method for calculating a future position of an intraoral object of a patient's intraoral cavity is provided. The method can include receiving first and second digital data representative of an actual state of the intraoral cavity at first and second time points. The method can include processing data including the first and second digital data so as to determine a velocity of an intraoral object of the intraoral cavity over the first and second time points. A future position of the intraoral object at a future time point can be determined based on the velocity.

Claims (57)

1. A computer-implemented method for calculating a future position of an intraoral object of a patient's intraoral cavity for use in dental treatment, the method comprising:

receiving first digital data representative of an actual state of the patient's intraoral cavity at a first time point, the first digital data being based on a scan of the patient's intraoral cavity at the first time point;

receiving second digital data representative of an actual state of the patient's intraoral cavity at a second time point different from the first time point, the second digital data being based on a scan of the patient's intraoral cavity at the second time point;

processing data including the first and second digital data so as to determine a velocity of the intraoral object of the patient's intraoral cavity between the first time point and the second time point;

determining a future position of the intraoral object at a future time point based on the velocity, wherein the future position is determined prior to the intraoral object being in the future position;

generating a digital model of the patient's intraoral cavity with the intraoral object at the future position; and

determining a future condition of the patient's intraoral cavity based on the future position of the intraoral object, wherein the future condition comprises an undesirable dental or orthodontic condition that is predicted to occur at the future time point if the patient's intraoral cavity is left untreated, and wherein the future condition is determined prior to occurrence of the future condition.

2. The method of claim 1 , wherein the first and second digital data each comprise one or more of surface data or sub-surface data of the patient's intraoral cavity.

3. The method of claim 1 , further comprising displaying a graphical representation of the intraoral object in the future position of the intraoral object on a user interface shown on a display.

4. The method of claim 1 , further comprising:

determining a positional change of the intraoral object between the first and second time points, based on the first and second digital data; and

evaluating whether the positional change exceeds a predetermined threshold.

5. The method of claim 4 , further comprising outputting an alert to a user in response to an evaluation that the positional change exceeds the predetermined threshold.

6. The method of claim 4 , wherein the predetermined threshold is input by a user.

7. The method of claim 4 , wherein the predetermined threshold is determined based on one or more of user preferences or patient characteristics.

8. The method of claim 4 , wherein the predetermined threshold is indicative of the undesirable dental or orthodontic condition.

9. The method of claim 4 , further comprising:

generating a plurality of options for producing a desired dental or orthodontic outcome, in response to an evaluation that the positional change exceeds the predetermined threshold; and

displaying the plurality of options on a user interface shown on a display.

10. The method of claim 9 , wherein the plurality of options comprises a plurality of treatment options for the undesirable dental or orthodontic condition, and wherein displaying the plurality of options comprises displaying one or more of pricing information, treatment time information, treatment complication information, or insurance reimbursement information associated with each of the plurality of treatment options.

11. The method of claim 1 , wherein the intraoral object comprises one or more of a tooth crown, tooth root, gingiva, airway, palate, tongue, or jaw.

12. The method of claim 1 , further comprising processing data including the first and second digital data so as to determine a rate of change in one or more of a shape, size, or color of the intraoral object.

13. The method of claim 12 , wherein the intraoral object comprises a tooth and the rate of change comprises a tooth shape change velocity.

14. The method of claim 12 , wherein the intraoral object comprises gingiva and the rate of change comprises a gingival shape change velocity.

15. The method of claim 1 , wherein determining the future position of the intraoral object comprises determining a movement trajectory of the intraoral object based on the velocity.

16. The method of claim 15 , wherein the movement trajectory is linear.

17. The method of claim 1 , further comprising:

receiving third digital data representative of the patient's intraoral cavity at a third time point different from the first and second time points; and

processing data including the first, second, and third digital data so as to determine a velocity of the intraoral object between the first time point, the second time point, and the third time point.

18. The method of claim 17 , further comprising:

determining a movement trajectory of the intraoral object based on the velocity over the first, second, and third time points, wherein the movement trajectory is non-linear; and

determining the future position of the intraoral object based on the non-linear movement trajectory.

19. The method of claim 18 , wherein the non-linear movement trajectory comprises one or more of a change in movement direction or a change in movement speed.

20. The method of claim 17 , further comprising processing data including the first, second, and third digital data so as to determine a force vector associated with the intraoral object over the first, second, and third time points.

21. The method of claim 1 , wherein determining the future position of the intraoral object comprises extrapolating the velocity to the future time point using linear or non-linear extrapolation.

22. The method of claim 1 , wherein one or more of receiving the first digital data, receiving the second digital data, processing the data, or determining the future position is performed with aid of one or more processors.

23. A computer-implemented method for calculating a positional change over time of an intraoral object of a patient's intraoral cavity for use in dental treatment, the method comprising:

receiving first digital data representative of an actual state of the patient's intraoral cavity at a first time point, the first digital data being based on a scan of the patient's intraoral cavity at the first time point;

receiving second digital data representative of an actual state of the patient's intraoral cavity at a second time point different from the first time point, the second digital data being based on a scan of the patient's intraoral cavity at the second time point;

registering the second digital data with the first digital data;

processing data including the first and second digital data after the registering so as to determine a positional change of the intraoral object between the first and second time points;

evaluating whether the positional change exceeds a predetermined threshold; and

determining a future condition of the patient's intraoral cavity based on a future position of the intraoral object, wherein the future condition comprises an undesirable dental or orthodontic condition that is predicted to occur at a future time point if the patient's intraoral cavity is left untreated, and wherein the future condition is determined prior to occurrence of the future condition.

24. The method of claim 23 , further comprising outputting an alert to a user in response to an evaluation that the positional change exceeds the predetermined threshold.

25. The method of claim 23 , further comprising:

generating a plurality of options for producing a desired dental or orthodontic outcome, in response to an evaluation that the positional change exceeds the predetermined threshold; and

displaying the plurality of options on a user interface shown on a display.

26. The method of claim 23 , wherein the predetermined threshold is determined based on one or more of user preferences or patient characteristics.

27. A computer system for calculating a positional change over time of an intraoral object of a patient's intraoral cavity for use in dental treatment, the system comprising:

one or more processors; and

memory comprising instructions that, when executed by the one or more processors, cause the system to:

receive first digital data representative of an actual state of the patient's intraoral cavity at a first time point, the first digital data being based on a scan of the patient's intraoral cavity at the first time point;

receive second digital data representative of an actual state of the patient's intraoral cavity at a second time point different from the first time point, the second digital data being based on a scan of the patient's intraoral cavity at the second time point;

register the second digital data with the first digital data;

process data including the first and second digital data after the registering so as to determine a positional change of the intraoral object between the first and second time points;

evaluate whether the positional change exceeds a predetermined threshold; and

determine a future condition of the patient's intraoral cavity based on a future position of the intraoral object, wherein the future condition comprises an undesirable dental or orthodontic condition that is predicted to occur at a future time point if the patient's intraoral cavity is left untreated, and wherein the future condition is determined prior to occurrence of the future condition.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 2, 2015
From: MASON, DAVID; BRANDT, DOUGLAS
To: ALIGN TECHNOLOGY, INC.
Reel/Frame 036477/0222 →
Continuity (2)
Provisional Application 62079451 · Nov 13, 2014
Related Publication 20160135925A1 · May 19, 2016
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