公开(公告)号：US20160228222A1

公开(公告)日：2016-08-11

申请号：US15026293

申请日：2014-10-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jacqueline C. Rolf ,  Richard P. Rusin ,  Colin F. Norman ,  Melinda B. Gustafson ,  James D. Hamer ,  Charles G. Carter ,  Roxanne A. Boehmer ,  Brian N. Holmes ,  Tara Waldrop ,  Brady P. Haislet

IPC: A61C13/00 ,  A61C13/09 ,  A61C13/08

CPC classification number: A61C13/0022 ,  A61C13/0004 ,  A61C13/0006 ,  A61C13/082 ,  A61C13/09 ,  G16H20/40

Abstract: The present disclosure provides for a dental mill blank and a method of forming the dental mill blank. The dental mill blank includes a first layer (102) of a first hard restorative material having a first translucency and a first shade, a second layer (104) of a second hard restorative material having a second translucency and a second shade, where at least one of the following is true: the first translucency is different from the second translucency, the first shade is different from the second shade. The first layer (102) and the second layer (104) form a first interface having a first curve (112) across a first plane of symmetry (114) of the dental mill blank, where the first curve (112) has a different from zero curvature; and a first straight line (122) along the entire length of a second plane (118) of the dental mill blank, the second plane (118) being orthogonal to the first plane of symmetry (114).

Abstract translation: 本公开内容提供了一种牙科磨机坯料和形成牙科磨粉机的方法。 牙科磨坊坯料包括具有第一半透明度的第一硬修复材料的第一层（102）和第一遮蔽物，具有第二半透明度和第二遮蔽物的第二硬修复材料的第二层（104），其中至少 以下之一是真实的：第一个半透明度与第二个半透明度不同，第一个阴影不同于第二个阴影。 第一层（102）和第二层（104）形成第一界面，该第一界面具有穿过牙磨机坯料的第一对称平面（114）的第一曲线（112），其中第一曲线（112）具有不同于 零曲率; 以及沿所述牙粉磨坯的第二平面（118）的整个长度的第一直线（122），所述第二平面（118）正交于所述第一对称平面（114）。

公开(公告)号：US10219880B2

公开(公告)日：2019-03-05

申请号：US15026293

申请日：2014-10-02

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Jacqueline C. Rolf ,  Richard P. Rusin ,  Colin F. Norman ,  Melinda B. Gustafson ,  James D. Hamer ,  Charles G. Carter ,  Roxanne A. Boehmer ,  Brian N. Holmes ,  Tara Waldrop ,  Brady P. Haislet

IPC: A61C13/09 ,  A61C13/00 ,  A61C13/08

Abstract: Disclosed herein a dental mill blank and a method of forming the dental mill blank. The dental mill blank includes a first layer of a first hard restorative material having a first translucency and a first shade, a second layer of a second hard restorative material having a second translucency and a second shade, where at least one of the following is true (1) the first translucency is different from the second translucency, (2) the first shade is different from the second shade. The first layer and the second layer form a first interface having a first curve across a first plane of symmetry of the dental mill blank, where the first curve has a different from zero curvature; and a first straight line along the entire length of a second plane of the dental mill blank, the second plane being orthogonal to the first plane of symmetry.