Method of identifying dental consumables equipped into a dental tool machine

Patent metadata

Field	Value
Publication number	US-2022359065-A1
Application number	US-202017765527-A
Country	US
Kind code	A1
Filing date	Oct 14, 2020
Priority date	Oct 23, 2019
Publication date	Nov 10, 2022
Grant date	—

Abstract

A method of identifying dental consumables including at least one of a dental blank (2) and a dental tool (3) equipped into a dental tool machine (1). The method includes: a step of colliding the dental tool (3) with the dental blank (2) or a dental blank holder of the dental tool machine (1) and a step of detecting a signal indicative of the collision. The method also includes a step of analyzing the detected signal through trained artificial intelligence; and a step of identifying the type and/or condition of at least one of the dental consumables based on the analysis.

First claim

1 . A method of identifying dental consumables including at least one of a dental blank and a dental tool equipped into a dental tool machine, the method comprising the steps of
colliding the dental tool with the dental blank or a dental blank holder of the dental tool machine:
detecting a signal indicative of the collision,
analyzing the detected signal through trained artificial intelligence; and
identifying the type and/or the condition of at least one of the dental consumables based on the analysis.

2 . The method according to claim 1 , further comprising the steps of:
receiving one or more information of the dental consumables respectively; recognizing the type and/or the condition of each dental consumable based on the received information; and verifying consistency of the recognition with the identification.

3 . The method according to claim 2 , wherein the information is an information tag that is an RFID tag, a OR code, or a bar code and said information is read in a reading step; and in the reading step an RF transceiver or an optical transceiver/receiver is accordingly used for reading the information tag.

4 . The method according to claim 2 , further comprising the steps of:
receiving said information based on inputting into the dental tool machine said information on one or more dental consumables through a user-interface.

5 . The method according to claim 2 further comprising: a step of inhibiting the machining responsive to determining that the verification is inconsistent.

6 . The method according to claim 2 , further comprising: a step of allowing the machining if the consumables are suitable for the machining and the verification is consistent.

7 . The method according to claim 1 , further comprising: a step of determining the correctness of the identification, and correcting the identification responsive to determining that a correction is necessary.

8 . The method according to claim 7 , further comprising: a step of inhibiting the machining responsive to determining that the identification is incorrect.

9 . The method according to claim 7 , further comprising: a step of allowing the machining responsive to determining that the consumables are suitable for the machining and the identification is correct.

10 . The method according to claim 7 , further comprising: a step of training the artificial intelligence based on the detected signal and the corrected identification.

11 . The method according to claim 2 , further comprising: a step of training the artificial intelligence based on the detected signal and the recognition.

12 . The method according to claim 1 , wherein in the analyzing step a Fourier transformation is applied to the signal to generate a frequency spectrogram comprising the spectrum of frequencies versus time.

13 . The method according to claim 1 , wherein the trained artificial intelligence is implemented through a computer-implemented algorithm based on a neural network.

14 . The method according to claim 13 , wherein in the analyzing step a trained convolutional neural network is used.

15 . A computer-program comprising computer-readable codes for causing a computer based dental machining system to carry out the method steps according to claim 1 .

16 . A non-transitory computer-readable data storage medium storing a program which when executed by a computer system, causes the computer system to perform the steps of claim 1 .

17 . A dental machining system comprising:
a dental tool machine which comprises: consumables including at least one of a dental blank and a dental tool; one or more driving units each movably holding at least one dental tool for machining a corresponding side of the dental blank; a dental blank holder for holding at least one dental blank relatively movably with respect to the dental tools; a detection device configured to detect a. signal indicative of a collision of the dental tool with the dental blank or the dental blank holder, means for implementing a trained artificial intelligence that is configured to analyze the signal and identify the type and/or the condition of at least one of the dental consumables based on the analysis; and a control device configured to control the dental machining system according to claim 1 .

18 . The dental machining system according to claim 17 , wherein the detection device is further configured to detect the signal based on the sound of the collision, or the speed, the acceleration, the vibration of the respective dental tool, or the force, the torque acting on the respective dental tool or the supply current to a dental tool motor of the respective dental tool.

19 . The dental machining system according to claim 17 , further comprising: a reading device configured to read an information tag on the dental consumable, wherein the dental consumable has an RFID tag, a QR code, or a bar code.

20 . The dental machining system according to claim 17 , further comprising a user-interface for inputting information on a dental consumable.

21 . The dental machining system according to claim 17 , wherein the control device is further configured to initiate the collision before start of the machining, in a pause in the machining, or after the machining of the dental blank, and the detection device is further configured to detect the signal accordingly.

Assignees

• Dentsply Sirona Inc
• Sirona Dental Systems Gmbh

Inventors

• Schneider Hans-Christian

Classifications

• A61C13/0004 Primary

  Computer-assisted sizing or machining of dental prostheses · CPC title

• G05B2219/49302

  Part, workpiece, code, tool identification · CPC title

• G06K7/1413

  1D bar codes · CPC title

• G06K19/06

  characterised by the kind of the digital marking, e.g. shape, nature, code · CPC title

• G05B2219/35021

  Identify object characteristics, elasticity, density, hardness and select material · CPC title