Virtual modeling of gingiva adaptations to progressive orthodontic correction & associated methodology of appliance manufacture

A gingival and mold technology, which is applied in the quasi-standard field, can solve the problems of inaccurate update of gingival shape and poor fitting of aligners.

Active Publication Date: 2019-02-12
CLEARCORRECT OPERATING LLC
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  • Abstract
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Problems solved by technology

As a result, even if the aligners from the initial steps of treatment fit properly, inaccurate updates to the shape of the gums will lead to progressively worse fit of the aligners in subsequent steps of treatment

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  • Virtual modeling of gingiva adaptations to progressive orthodontic correction & associated methodology of appliance manufacture
  • Virtual modeling of gingiva adaptations to progressive orthodontic correction & associated methodology of appliance manufacture
  • Virtual modeling of gingiva adaptations to progressive orthodontic correction & associated methodology of appliance manufacture

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Embodiment Construction

[0019] The present application describes systems and methods for generating a digital model that allows for adaptation to the shape of a patient's gums during orthodontic treatment. Initial tooth and gingival contours were obtained from 3D scans of patient tooth and gingival replicas or CT scans of patient tooth and gingival impressions. The initial profile and desired tooth movement are sent to software that generates new tooth and gum profiles. The software distributes force vectors between multiple gingival control points and tooth control points based on collected statistical and anatomical data. Each force vector represents the effect of tooth / gingival control point movement on adjacent gingival control points. By integrating the desired tooth movement with the initial contour, the software is able to generate a new contour including the desired tooth movement and the new gingival topology. The new outline can be sent to a 3D printer to make a new mold.

[0020] figur...

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Abstract

A system and associated methodology for the generation of digital models that account for the adaptation of the shape of the patient's gingiva is provided. The exemplary system uses an initial scan ofthe patient's gingiva as a base model, taking into account the type and morphology of the teeth, the shape, orientation and movements of the roots inside the gingiva, and other factors for a more accurate prediction of the changes in the shape of the gingiva throughout every step of the treatment. In particular, the system proactively determines the areas of the model that will be covered by thealigner and prevents changes to such areas, whereas the shape of the model outside these areas is altered in a way to minimize the size of model and to add any necessary features for the manufacturingof the aligners.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application No. US 62 / 340960, filed May 24, 2016. Background technique [0003] Orthodontic aligners offer an alternative to traditional braces, which typically use braces connected by wires to realign teeth. Braces are for patients with mild or moderate crowding of teeth or closely spaced teeth. Patients undergoing orthodontic treatment with aligners periodically replace their original aligners with new and progressively different aligners so that the teeth gradually move from a first position to a second position and eventually towards the desired final position. The course of treatment may last from months to years, depending on how badly the teeth are misaligned. Orthotics may be made of a plastic material such as acrylic, such as that provided by the present assignee, Round Rock, Texas Those orthotics manufactured. [0004] The technologies currently available ...

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Application Information

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IPC IPC(8): A61C7/00
CPCA61C7/002A61C7/08A61C2007/004
Inventor H·扬扎德赫E·T·京特贝格
Owner CLEARCORRECT OPERATING LLC
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