Systems and methods for designing and manufacturing an orthodontic appliance
US12197186B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 18, 2020 |
| Grant date | Jan 14, 2025 |
| Priority date | — |
| Expiry date | Aug 11, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2219/2004
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Systems and methods of defining a trimline in relation to modeled teeth including modeled gingiva. The trimline is for use to manufacture an aligner. A margin point is placed proximate a gingival margin at each tooth on at least one jaw in the model. A trimline connects the plurality of margin points from which machine code is generated. The aligner manufactured includes an edge that correlates with the trimline according to the machine code. A margin point may be proximate a gingival zenith. At least one tooth cooperates with the modeled gingiva to define a line around the tooth. The trimline includes at least one tooth curve and at least one connector curve connected to the tooth curve at a transition point. At least one control point is on the trimline between two margin points. The trimline is defined by a spline that may be a Bèzier curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.