公开(公告)号：US10383712B2

公开(公告)日：2019-08-20

申请号：US15743708

申请日：2016-07-20

Applicant: DENTSPLY SIRONA inc.

Inventor： Thomas Oskam

IPC: A61C13/00 ,  A61C13/01 ,  G05B19/40 ,  G06F19/00 ,  G06F17/50 ,  B33Y80/00

Abstract: The invention relates to a method for computer-aided planning of a repair or adjustment of a dental partial prosthesis with the following method steps: generation of a first digital 3D model of a jaw with the partial prosthesis positioned on the jaw as a prosthesis reference model (M1), generation of a second digital 3D model of the jaw, without the partial prosthesis, as a jaw model (M2), determination of a positional relationship of the prosthesis reference model (M1) to the jaw model (M2), generation of a digital prosthesis model (P) by subtracting the jaw model (M2) from the prosthesis reference model (M2) while taking the positional relationship into account, automatic identification and/or identification carried out by a user of holding and/or support elements in the prosthesis model (P), calculation of an insertion axis of the partial prosthesis on the basis of the prosthesis model (P), calculation of undercut depths, resulting from the insertion axis, of the holding and/or support elements in the prosthesis model (P), display of the insertion axis and the undercut depths in the presentation of the jaw model (M2).

公开(公告)号：US20190247151A1

公开(公告)日：2019-08-15

申请号：US16335761

申请日：2017-09-26

Applicant: DENTSPLY SIRONA Inc.

Inventor： Eric BRIGHT ,  Alexander YARMARKOVICH ,  Anton VENDLAND ,  Najib KHALIL

IPC: A61C8/00 ,  A61C5/30

CPC classification number: A61C8/005 ,  A61C5/30 ,  A61C5/70 ,  A61C13/2656

Abstract: A dental restorative system (10) includes a dental prosthesis (21), a support surface (13a or 30) and a cement gap (22) between those opposing surfaces. A number of dry-fit features (11) can be placed upon the support surface (13a or 30) or the prosthesis (21) such that the features (11) extend into cement gap (22). Dry-fit features (11) serve to position the prosthesis (21) during a dry-fit procedure and during subsequent cementing of the prosthesis (21) to its support surface (13a or 30).

公开(公告)号：US10376227B2

公开(公告)日：2019-08-13

申请号：US15658888

申请日：2017-07-25

Applicant: DENTSPLY SIRONA Inc.

Inventor： Tod Brenner

IPC: A61B6/14 ,  G03B42/04

Abstract: A dental x-ray sensor holder 10 for securing an x-ray sensor 1 to a holder using suction created between the sensor and a backing plate 3 of the sensor holder. The dental x-ray sensor holder generally includes a bite block 2 with a first end and a second end, a backing plate 3 affixed to or formed contiguously with the second end of the bite block, and an opening 17 to a cavity 20 in the holder, wherein said cavity 20 leads an evacuation chamber 14 for creating a vacuum between the holder and an X-ray sensor.

公开(公告)号：US10351934B2

公开(公告)日：2019-07-16

申请号：US14541872

申请日：2014-11-14

Applicant: DENTSPLY SIRONA Inc.

Inventor： Dan Ammon ,  Vincent Shotton ,  Yong Gao ,  Randall Maxwell

IPC: C22F1/10 ,  C22C18/02 ,  C21D6/00 ,  C21D9/00 ,  C22C9/00 ,  C22C9/06 ,  C22C19/03 ,  C22C30/00 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/08 ,  C22C38/10 ,  C22C38/12 ,  C22C38/40 ,  C22F1/00 ,  C22F1/08 ,  A61C5/42

Abstract: A method for manufacturing a nonlinear superelastic file comprising the steps of: providing a superelastic file having a shaft and a file axis; providing a fixture including a file groove being defined by one or more displacement members, the file groove configured for receiving the shaft; inserting at least a portion of the shaft into the fixture along the file groove, the portion of the shaft including a first portion of the shaft; contacting the first portion of the shaft with a first displacement member of the one or more displacement members such that the first portion of the shaft is displaced from the file axis thereby forming a first offset portion of the shaft; heating the portion of the shaft while inserted in the fixture to a temperature of at least about 300° C. for a time period of at least about 1 minute to shape-set the portion of the shaft thereby forming a shape-set nonlinear file.

公开(公告)号：US10307229B2

公开(公告)日：2019-06-04

申请号：US14770597

申请日：2014-03-03

Applicant: DENTSPLY SIRONA Inc.

Inventor： Steffen Hauth ,  Sascha Schneider

IPC: G06F17/50 ,  A61C13/00 ,  G16H20/40

Abstract: The invention relates to a method for constructing tooth surfaces of a dental prosthesis and for producing dental restorations, starting from a 3D data record of an upper mandible layout and a 3D data record of a lower mandible layout, each layout comprising a number of teeth arranged in each mandibular arch and the teeth of the upper mandible layout and the teeth of the lower mandible layout at intercuspation making contact with each other at multiple contact points. The contact surfaces are selected by approximation. Relevant surface pairs lying opposite one another are identified and are incorporated by an optimization algorithm into local minimum distances, taking into consideration surfaces that can slide past one another. This allows the desired contact points to be produced. Surfaces that have not been selected are not considered in the production of the points of contact.

公开(公告)号：US10278901B2

公开(公告)日：2019-05-07

申请号：US15323161

申请日：2015-07-02

Applicant: DENTSPLY SIRONA Inc.

Inventor： Joachim Klee

IPC: A61K6/087 ,  C07D301/16 ,  C07D303/23 ,  C08L63/00 ,  A61K6/00 ,  C08G59/06 ,  C08G59/24 ,  C08G59/32 ,  C08G59/50

Abstract: Dental composition comprising(a) at least two di- or polyepoxides having 2 to 5 epoxide groups and having a molecular weight of from 200 to 700 Da, or a macromonomeric reaction product obtainable by reacting the diepoxide with a dicarboxylic acid in a molar ratio [diepoxide]/[dicarboxylic acid] of at least 2; (b) one or more primary monoamines and/or disecondary diamines; (c) optionally one or more aliphatic polyamines; (d) a particulate filler, wherein the molar ratio of epoxide groups in component (a) to the N—H bonds in component (b) and (c) [epoxide(a)]/[N—H(b),(c)] is in the range of from 0.9 to 1.1; wherein the di- or polyepoxide having 2 to 5 epoxide groups is a compound of the following formula (I): A(BZm)n  (I) wherein A represents an n-valent organic moiety optionally having 1 to 10 heteroatoms selected from oxygen atoms and sulfur atoms; and B represents an m+1-valent organic moiety, Z is an epoxide group which may have a substituent, m which are independent from each other represent an integer of at least 1; and n is an integer of from 1 to 5; wherein the m are selected so that 2 to 5 epoxide groups are present; wherein the composition does not contain any 2,2-bis-(4-hydroxyphenyl)-propane, or 2,2-bis-(4-hydroxyphenyl)-methane.

公开(公告)号：US10271712B2

公开(公告)日：2019-04-30

申请号：US14770569

申请日：2014-02-28

Applicant: DENTSPLY SIRONA INC.

Inventor： Sascha Schneider

IPC: G06F17/50 ,  A61B1/00 ,  A61C9/00 ,  A61B1/24 ,  A61B90/94 ,  G16H50/50 ,  G06F19/00

Abstract: The present invention relates to a computer program and to a method for controlling the computer program, wherein a control signal is sent to the computer program when an optical marker, in particular a two-dimensional barcode (2a, 2b, 2c), is detected by an intraoral scanner (1), which signal switches the computer program to a predefined state. A device for controlling the computer program comprises a support (3) on which at least one optical marker is arranged. The optical marker has an inscription (21a, 21b, 21c) which indicates a state of the computer program to which the computer program can be switched by detection of the optical marker by the intraoral scanner (1).

公开(公告)号：US10258430B2

公开(公告)日：2019-04-16

申请号：US14770550

申请日：2014-03-03

Applicant: DENTSPLY SIRONA Inc.

Inventor： Steffen Hauth ,  Sascha Schneider

IPC: G06F17/50 ,  A61C5/77 ,  A61C13/00 ,  A61C13/34

Abstract: The invention relates to a method for the virtual post-processing of a first virtual three-dimensional dental model (14) of a dental prosthesis (28), said model having been created during the planning of the prosthesis (28). The first virtual dental model (14) is processed virtually after the planning stage in an additional method step (18, 31) by adapting at least one three-dimensional aesthetic surface structure (17) already in existence to the first dental model (14) by means of a virtual tool (10) with the aid of a computer (4) and a display device (6) and by subsequently inserting said structure into the first dental model (14). The aesthetic surface structure (17) has a predetermined form, size and/or a predetermined impression depth (41), and a tooth surface (19) of the dental model (14) is at least partially replaced by the adapted aesthetic surface structure (15, 17).

公开(公告)号：USD845489S1

公开(公告)日：2019-04-09

申请号：US29634811

申请日：2018-01-25

Applicant: DENTSPLY SIRONA Inc.

Designer： Paul Pierson ,  Andrew Coste ,  Naim Karazivan ,  Dustin Gaidos ,  Michael Metz

公开(公告)号：US20190099244A1

公开(公告)日：2019-04-04

申请号：US15786030

申请日：2017-10-17

Applicant: DENTSPLY SIRONA Inc.

Inventor： Markus VOLLMANN ,  Lothar VOLKL ,  Stefan FECHER ,  Carsten WIESNER

IPC: A61C13/00 ,  B29C43/14 ,  A61C5/77 ,  A61C13/083 ,  A61K6/02

Abstract: The invention relates to a method for the production of a blank of a ceramic material, wherein a first ceramic material and then a second ceramic material of different compositions are filled into a mold and wherein the materials are pressed and after pressing are sintered. Thereby, a layer of the first ceramic material is filled into the mold, a first open cavity is formed in the layer, the second ceramic material is filled into the first open cavity and the materials are pressed together and are then heat-treated. Both the first ceramic material and the second ceramic material contain, or consists of, lithium silicate glass ceramic.