IP Library Granted Patent US 11,647,909
Granted Patent B2
US 11,647,909 · App. 16/512,583 · Granted May 16, 2023

3D intraoral scanner measuring fluorescence

Inventors: Mike Van Der Poel (Rødovre, DK); Karl-Josef Hollenbeck (Copenhagen, DK)
Assignee: 3SHAPE A/S
A61B5/0088A61B5/0071A61B5/742A61C9/0053A61B5/0035
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Quick Facts
Patent No.
US 11,647,909
App. No.
16/512,583
Granted
May 16, 2023
Kind
B2
Abstract

A 3D scanner system for detecting and/or visualizing cariogenic regions in teeth based on fluorescence emitted from said teeth, the 3D scanner system including data processing means configured for mapping a representation of fluorescence emitted from the teeth onto the corresponding portion of a digital 3D representation of the teeth to provide a combined digital 3D representation.

Claims (27)

1. A 3D scanner system configured for displaying a digital representation of a cariogenic region of a tooth and a digital 3D representation of the tooth, the 3D scanner system comprising:

a 3D intraoral scanner device comprising:

i. one or more image sensor(s);

ii. a first light source, the first light source configured to emit light at a first wavelength, wherein the 3D intraoral scanner device is configured such that at least one of the one or more image sensor(s) detects light at the first wavelength, thereby configured to record data for a 3D surface topography of the tooth; and

iii. a second light source, the second light source configured to emit light at a second wavelength, wherein the 3D intraoral scanner device is configured such that at least one of the one or more image sensor(s) detects light at the second wavelength, thereby configured to record data for the cariogenic region of the tooth,

a data processor configured for:

i. converting the data for the 3D surface topography of the tooth into the digital 3D representation of the tooth; and

ii. converting the data for the cariogenic region into the digital representation of the cariogenic region of the tooth,

a display configured for visualizing both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth,

wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed at the same time,

wherein the one or more image sensor(s) is a single image sensor,

wherein the second wavelength is within a range of 500 nm to 850 nm,

wherein the second light source comprises an LED.

2. The 3D scanner system according to claim 1 , wherein the digital 3D representation of the tooth is displayed by itself.

3. The 3D scanner system according to claim 1 , wherein both the digital 3D representation of the tooth and the digital representation of the cariogenic region of the tooth are displayed as a combined 3D representation.

4. The 3D scanner system according to claim 1 , wherein the second wavelength is selected to excite a fluorescent material of the tooth.

5. The 3D scanner system according to claim 1 , wherein the 3D intraoral scanner device is configured to shift between the first light source and the second light source repeatedly, thereby configured to illuminate the tooth successively by the light from the first light source and the second light source.

6. The 3D scanner system according to claim 1 , wherein the data processor is an integrated part of the 3D intraoral scanner device.

7. The 3D scanner system according to claim 1 , wherein the data processor is external to the 3D intraoral scanner device.

8. The 3D scanner system according to claim 1 , wherein a first part of the data processor is integrated with the 3D intraoral scanner device and a second part of the data processor is external to the 3D intraoral scanner device.

9. The 3D scanner system according to claim 1 , wherein the 3D intraoral scanner device further comprises a mirror configured to reflect wavelengths generated by the first light source and the second light source.

10. The 3D scanner system according to claim 1 , wherein the cariogenic region is a region with caries.

11. The 3D scanner system according to claim 1 , wherein the cariogenic region is a region with demineralization.

12. The 3D scanner system according to claim 1 , wherein the cariogenic region is present in more or less developed stages in the cariogenic region.

13. The 3D scanner system according to claim 1 , wherein the cariogenic region is a region with cariogenic bacteria.

14. The 3D scanner system according to claim 1 , wherein the first light source is a laser.

15. The 3D scanner system according to claim 1 , wherein the first light source is an LED.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 16, 2019
From: VAN DER POEL, MIKE; HOLLENBECK, KARL-JOSEF
To: 3SHAPE A/S
Reel/Frame 049761/0890 →
Priority Claims (1)
DK PA 2012 70382 · Jun 29, 2012 · national
Continuity (5)
Continuation 16283020 · Feb 22, 2019
Continuation 16264835 · Feb 1, 2019
Continuation 14411160
Provisional Application 61665015 · Jun 27, 2012
Related Publication 20190365236A1 · Dec 5, 2019
Cited By (2)
US 12,251,282 US 12,303,110