METHODS OF FORMING ORTHODONTIC APPLIANCES HAVING A RIDGE

    公开(公告)号:US20250049538A1

    公开(公告)日:2025-02-13

    申请号:US18933785

    申请日:2024-10-31

    Abstract: A method may include generating a model of an orthodontic appliance having a shell having teeth receiving cavities shaped to receive and reposition the patient's teeth. At least one of the cavities may be shaped to apply a resilient repositioning force to move at least one of the patient's teeth from a current arrangement toward a target arrangement. The method may include forming a ridge on the at least one of the cavities having a width and a length greater than the width. The ridge may be configured to apply at least a portion of the resilient repositioning force to the at least one of the patient's teeth. The method may also include modeling the orthodontic appliance with the ridge on the patient's teeth and modifying a portion of the shell to compensate for modeled contact of the portion of the shell with the at least one patient's tooth.

    DENTAL APPLIANCE HAVING SELECTIVE OCCLUSAL LOADING AND CONTROLLED INTERCUSPATION

    公开(公告)号:US20190175304A1

    公开(公告)日:2019-06-13

    申请号:US16177067

    申请日:2018-10-31

    Abstract: Methods and apparatus for producing controlled tooth-moving forces are provided. An orthodontic appliance includes one or more occlusal surface features that modify bite forces between opposing teeth during intercuspation to aid in realignment of the teeth. The interception bite forces can be applied between appliance shells on opposing arches, or between an appliance shell and an opposing tooth. These modified bite forces can be used to supply or augment tooth-moving forces, and the tooth moving forces can produce moments to urge rotational movement of a tooth. Also described herein are orthodontic appliances having an occlusal outer surface contours that are distinct from the occlusal inner surface contour within the dental appliance and may be configured to selectively intercuspate.

    ORTHODONTIC APPLIANCE RETENTION-ACTIVATION SYSTEMS AND METHODS

    公开(公告)号:US20250090283A1

    公开(公告)日:2025-03-20

    申请号:US18890537

    申请日:2024-09-19

    Abstract: A system for generating aligner shapes may include one or more processors and memory comprising instructions that when executed by the one or more processors, causes the system to carry out a method. The method may include determining a desired force system for moving a tooth, generating a population of sets of degrees of freedom and contact surfaces, determining a force system for each of the sets in the population evaluating a cost function of each of the force systems compared to the desired force system, updating the population of sets of degrees of freedom and contact surfaces based on the cost function of each of the force systems, and repeating determining a force system, evaluating a cost function and updating the population until the determined force system for one of the sets matches the desired force system, to generate a final set of degrees of freedom and contact surfaces.

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