Solventum Intellectual Properties Company

3m Innovative Properties Company

Shawna L Thomas

Guruprasad Somasundaram

Alexandra R Cunliffe

Nancy M Amato

Benjamin D Zimmer

Jonathan Dale Gandrud

Deepti Pachauri

Arash Sangari

Vera Shuman

Nitsan Ben-Gal Nguyen

A method for generating and reusing digital setups for an orthodontic treatment path. The method receives a digital 3D model of teeth, optionally performs interproximal reduction on the model, and generates an initial treatment path with stages including an initial, final, and intermediate setups. The method divides the initial treatment path into initial steps of feasible motion of the teeth resulting in a final treatment path with setups corresponding with the initial steps. For a treatment redesign, the method computes new steps of feasible motion for only a portion of the initial treatment path and based upon the initial steps, and generates the final path with new setups corresponding with the new steps. The setups can be used to make orthodontic appliances, such as clear tray aligners.

Automated process for intermediate orthodontic digital setup reuse due to treatment plan modifications

Methods for automatically removing collisions between digital mesh objects and moving digital mesh objects between spatial arrangements. The collisions are removed from a set of digital mesh objects using a perturbation method or a mesh deformation method. After removing the collisions, the digital mesh objects are output in a state without collisions between them. The digital mesh objects can be moved between initial and final states based upon motion constraints of the mesh objects and interpolated states of them between the initial and final states. Based upon the constraints and interpolated states, a number of states for movement of the set of digital mesh objects is determined either collectively for the set or individually for each mesh object. The states can be used as digital setups for dental or orthodontic treatment planning.

Methods to automatically remove collisions between digital mesh objects and smoothly move mesh objects between spatial arrangements

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College Station, TX, United States of America

Shawna L Thomas