METHOD FOR OBTAINING CROWN REGION SHAPE USING INTRAORAL SCANNER HAVING TOMOGRAPHIC IMAGING FUNCTION

    公开(公告)号:EP4438004A1

    公开(公告)日:2024-10-02

    申请号:EP24165224.7

    申请日:2024-03-21

    CPC classification number: A61C9/0073 A61C13/0004 A61C5/77

    Abstract: Disclosed is a method of obtaining the shape of a crown region for manufacturing a crown prosthesis by using an intraoral scanner having a tomographic imaging function. The method of obtaining the shape of a crown region comprises the steps of: obtaining a three-dimensional surface shape image of an oral structure including a tooth on which tooth deletion has been performed; setting a surface edge of a tooth deletion region as a location of a region of interest (52); scanning a surface shape and an internal cross-section of the oral structure at a predetermined location of the oral structure, and obtaining a partial surface shape image and a partial internal cross-sectional image of the oral structure; detecting a location of a crown margin (56) corresponding to an edge of a region where a tooth was actually deleted from the partial internal cross-sectional image; merging the location of the crown margin (56) with a surface image of a tooth (50), and causing a margin of the tooth deletion region obtained from a surface shape image of the tooth (50) to extend to the location of the crown margin (56).

    METHOD OF COMPOSING AND DESIGNING A SET OF TEETH

    公开(公告)号:EP2536347B1

    公开(公告)日:2018-12-05

    申请号:EP11744295.4

    申请日:2011-02-17

    Applicant: 3Shape A/S

    CPC classification number: A61C5/77 A61C13/0004 A61C13/08 A61C13/082 B33Y80/00

    Abstract: Disclosed is a computer-implemented method of designing a number of dental restorations for a patient, wherein the method includes: selecting a composed set of teeth including a number of teeth, where the number of teeth are arranged spatially relative to each other forming a high aesthetic composition; applying the composed set of teeth to a virtual three dimensional representation of the patient's present oral situation to obtain an initial set of teeth; optionally modifying one or more parameters of one or more of the teeth in the initial set of teeth to obtain a finalized set of teeth.

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