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    METHOD FOR OBTAINING CROWN REGION SHAPE USING INTRAORAL SCANNER HAVING TOMOGRAPHIC IMAGING FUNCTION
    4.
    发明公开
    METHOD FOR OBTAINING CROWN REGION SHAPE USING INTRAORAL SCANNER HAVING TOMOGRAPHIC IMAGING FUNCTION 审中-公开

    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

    申请人： Huvitz Co., Ltd. ,  Ossvis Co., Ltd.

    发明人： JEONG, Hyo Sang ,  CHO, Min Soo ,  LEE, Weon Joon

    IPC分类号： A61C9/00 ,  A61C13/00

    CPC分类号： A61C9/0073 ,  A61C13/0004 ,  A61C5/77

    摘要： 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).

    INTRAORAL SCANNER
    6.
    发明公开
    INTRAORAL SCANNER 审中-实审

    公开(公告)号：EP4424274A1

    公开(公告)日：2024-09-04

    申请号：EP22887741.1

    申请日：2022-10-31

    申请人： Arcreal Inc.

    发明人： JEON, Seung Hyun ,  KIM, Kyong Kook

    IPC分类号： A61C9/00 ,  A61B1/24 ,  A61B1/00

    CPC分类号： A61B1/24 ,  A61C9/00 ,  A61B1/00

    摘要： An intraoral scanner according to one embodiment of the present disclosure includes: a case having an opening part formed at one end thereof; a light source part disposed inside the case and configured to emit light; a first optical system disposed at the opening part and configured to reflect the light emitted from the light source part toward a subject located outside the case; a second optical system disposed adjacent to the first optical system and configured to reflect light reflected from the subject toward the inside of the case; and an image sensor part configured to detect the light reflected by the second optical system.

    INTRAORAL SCANNER
    7.
    发明公开
    INTRAORAL SCANNER 审中-实审

    公开(公告)号：EP4424273A1

    公开(公告)日：2024-09-04

    申请号：EP22887739.5

    申请日：2022-10-31

    申请人： Arcreal Inc.

    发明人： JEON, Seung Hyun ,  KIM, Kyong Kook

    IPC分类号： A61C9/00 ,  A61B1/24 ,  A61B1/00

    CPC分类号： A61B1/24 ,  A61C9/00 ,  A61B1/00

    摘要： An intraoral scanner according to one embodiment of the present disclosure includes: a case having an opening part formed at one end thereof; a light source part disposed inside the case and configured to emit light; a first optical system including a first reflector configured to reflect the light emitted from the light source part and a second reflector configured to reflect the light reflected by the first reflector toward the opening part; a second optical system disposed in the opening part and configured to reflect the light reflected from the first optical system toward a subject located outside the case and reflect light reflected from the subject toward the inside of the case; a third optical system including reflectors and a prism configured to refract the light reflected from the second optical system; and an image sensor part configured to detect the light refracted by the third optical system.