Optical systems and methods for examining a tooth

Patent metadata

Field	Value
Publication number	US-2019117078-A1
Application number	US-201816129529-A
Country	US
Kind code	A1
Filing date	Sep 12, 2018
Priority date	Sep 12, 2017
Publication date	Apr 25, 2019
Grant date	—

Abstract

Systems and method for optical examination of dental structures are disclosed. Light from an optical source is directed on a portion of a dental structure. Light received from the portion of the dental structure is analyzed to detect a condition of the dental structure.

First claim

1 . A dental system to optically examine a dental structure, the system comprising:
a mechanical assembly sized and shaped to be inserted into a mouth of a patient; an optical assembly configured to provide an illumination beam to a portion of the dental structure and to collect light from the portion of the dental structure, the optical assembly mounted on the mechanical assembly; and an electronic processing system configured to:
analyze the information recovered from the collected light; and
determine a characteristic representative of the portion of the dental structure based on the analysis.

2 . The dental system of claim 1 , wherein the mechanical assembly is configured to provide a controllable path for moving the optical assembly in the mouth of the patient.

3 . The dental system of claim 1 , wherein the mechanical assembly comprises a track or a rail.

4 . The dental system of claim 1 , wherein the optical assembly comprises an optical fiber.

5 . The dental system of claim 1 , wherein the optical assembly can be moved with respect to the dental structure.

6 . The dental system of claim 1 , wherein the optical assembly is a part of a fluorescence spectroscopy system.

7 . The dental system of claim 1 , wherein the optical assembly is a part of a Raman spectroscopy system.

8 . The dental system of claim 1 , wherein the optical assembly is a part of an optical coherence tomography (OCT) system.

9 .- 15 . (canceled)

16 . The dental system of claim 1 , wherein the electronic processing system is configured to generate a heat map of the portion of the dental structure based on the determined characteristic.

17 . A dental system to optically examine a dental structure, the system comprising:
a mechanical assembly sized and shaped to be inserted into a mouth of a patient; an optical assembly configured to provide an illumination beam to a portion of the dental structure and to collect light from the portion of the dental structure, the optical assembly mounted on the mechanical assembly, the mechanical assembly configured to move the optical assembly relative to the dental structure to obtain a plurality of optical signals representative of a condition of the dental structure.

18 . The dental system of claim 17 , wherein the mechanical assembly comprises a track or a rail configured to facilitate movement of the optical assembly in the mouth of the patient.

19 . The dental system of claim 17 , wherein the optical assembly is laterally moved along an outer surface of the teeth to scan a plurality of locations on the outer surface of the teeth to detect caries.

20 . The dental system of claim 17 , wherein the optical assembly comprises an optical fiber configured to be inserted into a root canal or a periodontal pocket.

21 .- 24 . (canceled)

25 . The dental system of claim 17 , wherein mechanical assembly is integrated in a mouthguard sized and shaped to be inserted into the mouth of the patient.

26 . The dental system of claim 17 , further comprising an electronic processing system configured to determine a characteristic representative of the condition of the dental structure and generate a heat map of the dental structure based on the determined characteristic.

27 . The dental system of claim 17 , further comprising a display device, wherein the electronic processing system is configured to display the heat map on the display device.

28 . A dental system to optically examine a dental structure, the system comprising:
an optical assembly configured to provide an illumination beam to a portion of the dental structure and to collect light from the portion of the dental structure; and an electronic processing system configured to:
analyze the information recovered from the collected light;
determine a characteristic representative of the portion of the dental structure based on the analysis; and
render the determined characteristic on a display device as a heat map, the heat map displaying different values of the determined characteristic with different indicia on the display device.

29 . (canceled)

30 . The dental system of claim 28 , wherein the optical assembly comprises a beam-steering system configured to scan the illumination beam across the portion of the dental structure.

31 . The dental system of claim 28 , further comprising a movement assembly configured to move the optical assembly from a first position in a mouth of a patient to a second position in the mouth of the patient.

32 . The dental system of claim 31 , wherein the movement assembly comprises a track or a rail placed in the mouth of the patient.

33 .- 84 . (canceled)

Assignees

• Sonendo Inc

Inventors

• Sharma Manu
• Khakpour Mehrzad
• Bergheim Bjarne

Classifications

• A61B5/0071

  by measuring fluorescence emission · CPC title

• A61B1/07

  using light-conductive means, e.g. optical fibres · CPC title

• A61B5/0088 Primary

  for oral or dental tissue · CPC title

• A61B1/24

  for the mouth, i.e. stomatoscopes, e.g. with tongue depressors; Instruments for opening or keeping open the mouth · CPC title

• A61B5/0075

  by spectroscopy, i.e. measuring spectra, e.g. Raman spectroscopy, infrared absorption spectroscopy (A61B5/0071 takes precedence) · CPC title