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    VIRTUALLY DESIGNING A POST AND CORE RESTORATION USING A DIGITAL 3D SHAPE
    2.
    发明公开
    VIRTUALLY DESIGNING A POST AND CORE RESTORATION USING A DIGITAL 3D SHAPE 审中-公开

    公开(公告)号：EP3808310A1

    公开(公告)日：2021-04-21

    申请号：EP20183181.5

    申请日：2013-02-06

    申请人： 3Shape A/S

    发明人： FISKER, Rune ,  NONBOE, Sven

    IPC分类号： A61C13/00 ,  A61C9/00 ,  A61C13/30 ,  A61C19/04 ,  A61C5/70

    摘要： Disclosed is a method of virtually designing a post and core restoration adapted for attachment in a damaged tooth of a patient, where the damaged tooth comprises a bore for receiving the post of the post and core, wherein the method comprises:
    - obtaining a first 3D scan comprising at least a part of the damaged tooth;
    - providing a digital 3D shape adapted to fit the bore of the damaged tooth;
    - virtually matching the first 3D scan of the tooth and the digital 3D shape, where the matching comprises matching a surface region in the first 3D scan of the tooth with a corresponding surface region of the digital 3D shape, such that at least part digital 3D shape is represented relative to the first 3D scan of the tooth;
    - virtually designing the post and core restoration based on the representation of the digital 3D shape relative to the first 3D scan of the tooth.

    DENTAL POST, METHOD FOR ITS FABRICATION, AND SET OF DENTAL POSTS
    4.
    发明公开
    DENTAL POST, METHOD FOR ITS FABRICATION, AND SET OF DENTAL POSTS 审中-公开

    公开(公告)号：EP3583912A1

    公开(公告)日：2019-12-25

    申请号：EP18178865.4

    申请日：2018-06-20

    申请人： Nordin, Peter

    发明人： Nordin, Peter

    IPC分类号： A61C13/30

    摘要： The invention relates to a dental post configured to be fitted within a dental cavity (67, 68) of a tooth (62) being restored. The post comprises a head portion (7, 47, 57, 77) and a foot portion (8, 78) consecutively arranged in an axial direction (6) of the post, said axial direction (6) being defined as a direction in which a central axis (5) of the head portion (7, 47, 57, 77) extends. The foot portion (8, 78) comprises a free lower end (3) such that the post can be inserted into the dental cavity (67, 68) in said axial direction (6) with said lower end (3) inwardly facing a closed inner end (64) of the dental cavity (67, 68). At least the foot portion (8, 78) is composed of a composite material comprising a resin matrix reinforced with fibers. The invention further relates to a method of fabrication of such a dental post, and to set comprising at least two such dental posts.
    To allow a better adaptability of the dental post to a variety of naturally occurring dental cavities, the invention proposes that the foot portion (8, 78) comprises a plurality of rods (14, 15, 24) being separated from one another along the axial direction (6) of the post such that each rod (14, 15, 24) is bendable in a transverse direction with respect to said axial direction (6).

    ENDODONTIC SUPPORTING PIN AND RELATED CONNECTOR
    9.
    发明公开
    ENDODONTIC SUPPORTING PIN AND RELATED CONNECTOR 审中-公开
    杜鹃花ER ER ER ER ER ER ER ER ER ER ER ER

    公开(公告)号：EP2934371A1

    公开(公告)日：2015-10-28

    申请号：EP13824398.5

    申请日：2013-12-17

    申请人： Tonini, Riccardo

    发明人： Tonini, Riccardo

    IPC分类号： A61C13/30 ,  A61C5/04

    CPC分类号： A61C13/30 ,  A61C5/35 ,  A61C5/50

    摘要： The present invention relates to an endodontic supporting pin and to a related connector, for dental applications of prosthetic reconstruction of a tooth, as well as to a method for the installation and fastening thereof. The pin comprises an elongated body, substantially cylindrical or with truncated-cone shape, with a longitudinal axis and an external diameter dext provided with a through hole, preferably circular, extended inside the elongated body with internal diameter dint and with a drilling axis substantially parallel to the longitudinal axis and preferably coaxial thereto, wherein the ratio between the internal diameter dint of the through hole and the external diameter dext of the elongated body, determined on a common measurement plane, is comprised between 0.3 and 0.9.

    摘要翻译： 本发明涉及牙根管支撑销和相关的连接器，用于牙齿的假体重建的牙齿应用，以及用于其安装和固定的方法。 该销包括基本上圆柱形或具有截头圆锥形的细长主体，其具有纵向轴线和外径直径，其具有通孔，优选为圆形，延伸在细长主体内部，内径为dint，钻孔轴线基本上平行 并且优选地与所述纵向轴线同轴，其中在公共测量平面上确定的所述通孔的内径dint与所述细长体的外径曲线之间的比率在0.3和0.9之间。

    System and method for designing post and core
    10.
    发明公开
    System and method for designing post and core 审中-公开
    系统与Verfahren zum Entwurf von Stift und Kern

    公开(公告)号：EP2756818A1

    公开(公告)日：2014-07-23

    申请号：EP14163022.8

    申请日：2010-02-25

    申请人： 3Shape A/S

    发明人： Deichmann, Nikolaj ,  Clausen, Tais ,  Fisker, Rune

    IPC分类号： A61C13/00 ,  A61C13/30 ,  A61C9/00

    CPC分类号： A61C13/0004 ,  A61C9/0046 ,  A61C9/0066 ,  A61C13/30

    摘要： System and computer-implemented method of designing and/or manufacturing a post and core to match a bore of a tooth, said method comprising the steps of:
    a) obtaining at least one impression of a set of teeth comprising a bore;
    b) scanning the impression of the set of teeth comprising the bore;
    c) providing a three-dimensional scan representation of the impression comprising the bore;
    d) transforming the three-dimensional scan representation to a three-dimensional positive working model of the set of teeth and the bore; and
    e) designing a post and core model from the positive working model of the bore.
    The invention relates in particular to CAD/CAM design and/or manufacture of post and core.

    摘要翻译： 系统和计算机实现的设计和/或制造柱和芯以匹配牙孔的方法，所述方法包括以下步骤：a）获得包括孔的一组牙齿的至少一个印模; b）扫描包括所述孔的所述一组齿的印模; c）提供包括所述孔的印模的三维扫描表示; d）将三维扫描表示转换成该组齿和孔的三维正工作模型; e）从钻孔的正面工作模式设计一个后模型和核心模型。 本发明特别涉及CAD / CAM设计和/或柱和芯的制造。