Aligner stage analysis to obtain mechanical interactions of aligners and teeth for treatment planning
AssigneeAlign Technology, Inc.
InventorsIman SHOJAEI, Reza SHIRAZI AGHJARI
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Abstract
Systems and methods of simulating, modeling, and validating orthodontic treatment are disclosed. The method may include designing an orthodontic treatment system or force system, generative a displacement field between a first position of a patient's teeth and a second position, modeling the three-dimensional force-displacement model generated by the treatment system or force system, and validating the treatment system or force system. The methods disclosed herein may be iterated to optimize the orthodontic force system or treatment system.
Claims20
A method of mapping mechanical interactions, the method comprising:
- generating an orthodontic treatment plan to move a patient's teeth from an initial position toward a final position, the treatment plan comprising a first stage and a second stage;
- building a 3D model of an orthodontic appliance at the second stage;
- building a 3D model of the patient's teeth at the first stage;
- mapping spatial differences between the orthodontic appliance at the second stage and the patient's teeth at the first stage;
- evaluating mechanical interactions of the orthodontic appliance at the second stage with the patient's teeth at the first stage;
- and
- mapping forces applied by the orthodontic appliance at the second stage to each tooth of the patient's teeth at the first stage.
A method of mapping tooth movements, the method comprising:
- generating an orthodontic treatment plan to move a patient's teeth from an initial position toward a final position, the treatment plan comprising a first stage and a second stage;
- building a first 3D model of the patient's teeth at the first stage and a second 3D model of the patient's teeth at the second stage;
- building a first 3D model of a first neutral aligner at the first stage and second 3D model of a second neutral aligner at the second stage;
- mapping spatial differences between the second neutral aligner at the second stage and the first neutral aligner at the first stage;
- evaluating mechanical interactions of the second neutral at the second stage with the patient's teeth at the first stage;
- and
- mapping forces applied by the second neutral aligner at the second stage to each tooth of the patient's teeth at the first stage.
Dependencies are inferred from the claim text.