Method and system for guiding an intra-oral scan
A method, system and computer readable storage media for guiding an intra-oral scan utilizing augmented reality. By visualizing a scan strategy in a field of view of a clinician during an intra-oral scanning scan procedure, a need to monitor the progress of the intra-oral scan on a separate monitor may be eliminated or reduced in order to save time.
1. A method for guiding a scan of a jaw utilizing augmented visualization, the method comprising:
obtaining a jaw model, the jaw model being a standard three-dimensional jaw model;
providing a scan strategy including the jaw model and a first and second control points;
overlaying the scan strategy as an augmentation on a target site in a patient's mouth through a display device including a head mounted augmented reality glass for augmented visualization such that the scan strategy appears directly superimposed on said target site;
determining a recording path based on the first and second control points;
acquiring a plurality of three-dimensional optical recordings from an intra-oral camera when the intra-oral camera is moved over the jaw along the determined recording path such that a corresponding region of the jaw defined by the determined recording path is recorded; and
registering the plurality of three-dimensional optical recordings into an overall three-dimensional recording
wherein responsive to scanning and successfully registering portions of the standard three-dimensional jaw model corresponding to actual teeth of the patient, replacing the portions with an ongoing three-dimensional reconstruction of the corresponding three dimensional optical recordings obtained by the intra-oral camera.
2. The method according to claim 1 , wherein the jaw model is the said standard three-dimensional jaw model is modified to correspond to a tooth situation of a the patient.
3. The method according to claim 1 , wherein the scan strategy is overlaid to guide a measurement process selected from the group consisting of an occlusal measurement, a lingual measurement, a first step of a buccal measurement, a second step of a buccal measurement, a fringe measurement, a bite block measurement and a palate measurement.
4. The method according to claim 1 , wherein the scan strategy is automatically updated in order to record different portions of the jaw.
5. The method according to claim 1 , further comprising determining areas of the plurality of three-dimensional optical recordings that have gaps, and providing additional control points and/or additional recording paths on the scan strategy in succession for further recording.
6. The method according to claim 1 , wherein a success of the registering step is tracked in order to update the scan strategy.
7. The method according to claim 1 , further comprising updating an orientation of the scan strategy in real time based on a tracking system, said tracking system including at least one of information from the intra-oral camera, information tracking patient movements and/or information tracking clinician movements.
8. The method according to claim 1 , wherein said target site is a site selected from the group consisting of the actual teeth, or a site in a field of view of a user of the display device for augmented visualization.
9. A system for guiding a scan of a jaw utilizing augmented visualization, the system comprising:
a display device for augmented visualization, and
at least one processor configured to;
obtain a jaw model, the jaw model being a standard three-dimensional jaw model;
provide a scan strategy including the jaw model and a first and second control points;
overlay the scan strategy as an augmentation on a target site in a patient's mouth through a display device including a head mounted augmented reality glass for augmented visualization such that the scan strategy appears directly superimposed on said target site;
determine a recording path based on the first and second control points;
acquire a plurality of three-dimensional optical recordings from an intra-oral camera when the intra-oral camera is moved over the jaw along the determined recording path such that a corresponding region of the jaw defined by the determined recording path is recorded; and
register the plurality of three-dimensional optical recordings into an overall three-dimensional recording;
wherein responsive to scanning and successfully registering portions of the standard three-dimensional jaw model corresponding to actual teeth of the patient, replacing the portions with an ongoing three-dimensional reconstruction of the corresponding three dimensional optical recordings obtained by the intra-oral camera.
10. The system according to claim 9 , wherein the processor is further configured to modify the standard three-dimensional jaw model to correspond to a tooth situation of the patient.
11. The system according to claim 9 , wherein the processor is further configured to overlay the scan strategy to guide a measurement process, said measurement process being selected from the group consisting of an occlusal measurement, a lingual measurement, a first step of a buccal measurement, a second step of a buccal measurement, a fringe measurement, a bite block measurement and a palate measurement.
12. The system according to claim 9 wherein the processor is further configured to update the scan strategy automatically in order to record different portions of the jaw.
13. The system according to claim 9 , wherein the processor is further configured to perform the steps of determining areas of the plurality of three-dimensional optical recordings that have gaps, and providing additional control points and/or additional recording paths on the scan strategy in succession for further recording.
14. The system according to claim 9 wherein the processor is further configured to track a success of the registering step in order to update the scan strategy.
15. The system according to claim 9 , further comprising the processor is further configured to perform the step of updating an orientation of the scan strategy in real time based on a tracking system, said tracking system including at least one of information from the intra-oral camera, information tracking patient movements and/or information tracking clinician movements.
16. The system according to claim 9 , wherein said target site is a site selected from the group consisting of the actual teeth, or a site in a field of view of a user of the display device for augmented visualization.
17. A non-transitory computer-readable storage medium storing a program which, when executed by a computer system, causes the computer system to:
obtain a jaw model, the jaw model being a standard three-dimensional jaw model;
provide a scan strategy including the jaw model and a first and second control points;
overlay the scan strategy as an augmentation on a target site in a patient's mouth through a display device including a head mounted augmented reality glass for augmented visualization such that the scan strategy appears directly superimposed on said target site;
determine a recording path based on the first and second control points;
acquire a plurality of three-dimensional optical recordings from an intra-oral camera when the intra-oral camera is moved over the jaw along the determined recording path such that a corresponding region of the jaw defined by the determined recording path is recorded; and
register the plurality of three-dimensional optical recordings into an overall three- dimensional recording;
wherein responsive to scanning and successfully registering portions of the standard three-dimensional jaw model corresponding to actual teeth of the patient, replacing the portions with an ongoing three-dimensional reconstruction of the corresponding three dimensional optical recordings obtained by the intra-oral camera.