WO2004100068A3 - Optical coherence tomography imaging - Google Patents

Optical coherence tomography imaging Download PDF

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Publication number
WO2004100068A3
WO2004100068A3 PCT/US2004/014383 US2004014383W WO2004100068A3 WO 2004100068 A3 WO2004100068 A3 WO 2004100068A3 US 2004014383 W US2004014383 W US 2004014383W WO 2004100068 A3 WO2004100068 A3 WO 2004100068A3
Authority
WO
WIPO (PCT)
Prior art keywords
dentition
optical coherence
coherence tomography
tomography imaging
obscured
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2004/014383
Other languages
French (fr)
Other versions
WO2004100068A2 (en
Inventor
Mark Quadling
Henley Quadling
Alan Blair
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
D3D LP
D3d L P
Original Assignee
D3D LP
D3d L P
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by D3D LP, D3d L P filed Critical D3D LP
Priority to EP04760738A priority Critical patent/EP1620007A4/en
Priority to CA002536969A priority patent/CA2536969C/en
Priority to JP2006514326A priority patent/JP4571625B2/en
Priority to AU2004237243A priority patent/AU2004237243B2/en
Publication of WO2004100068A2 publication Critical patent/WO2004100068A2/en
Publication of WO2004100068A3 publication Critical patent/WO2004100068A3/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0062—Arrangements for scanning
    • A61B5/0066—Optical coherence imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0059—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence
    • A61B5/0082—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes
    • A61B5/0088—Measuring for diagnostic purposes; Identification of persons using light, e.g. diagnosis by transillumination, diascopy, fluorescence adapted for particular medical purposes for oral or dental tissue
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C9/00—Impression cups, i.e. impression trays; Impression methods
    • A61C9/004—Means or methods for taking digitized impressions
    • A61C9/0046—Data acquisition means or methods
    • A61C9/0053—Optical means or methods, e.g. scanning the teeth by a laser or light beam
    • A61C9/0073—Interferometric means or methods, e.g. creation of a hologram
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B9/00—Measuring instruments characterised by the use of optical techniques
    • G01B9/02—Interferometers
    • G01B9/0209—Low-coherence interferometers
    • G01B9/02091—Tomographic interferometers, e.g. based on optical coherence
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B2290/00—Aspects of interferometers not specifically covered by any group under G01B9/02
    • G01B2290/65—Spatial scanning object beam
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/4795—Scattering, i.e. diffuse reflection spatially resolved investigating of object in scattering medium

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Engineering & Computer Science (AREA)
  • Molecular Biology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Radiology & Medical Imaging (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Epidemiology (AREA)
  • Optics & Photonics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Physics & Mathematics (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Endoscopes (AREA)
  • Instruments For Measurement Of Length By Optical Means (AREA)

Abstract

A digitized image of an object may include representations of portions of the object that are obscured, occluded or otherwise unobservable. The image may be a multi-dimensional visual representation of dentition. Characteristics of the dentition and its surfaces, contours, and shape may be determined and/or analyzed. A light may be directed toward and reflected from the dentition. The reflected light may be combined with a reference to determine characteristics of the dentition, including obscured areas such as subgingival tissue.
PCT/US2004/014383 2003-05-05 2004-05-05 Optical coherence tomography imaging Ceased WO2004100068A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP04760738A EP1620007A4 (en) 2003-05-05 2004-05-05 Optical coherence tomography imaging
CA002536969A CA2536969C (en) 2003-05-05 2004-05-05 Optical coherence tomography imaging
JP2006514326A JP4571625B2 (en) 2003-05-05 2004-05-05 Imaging by optical tomography
AU2004237243A AU2004237243B2 (en) 2003-05-05 2004-05-05 Optical coherence tomography imaging

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US46875903P 2003-05-05 2003-05-05
US60/468,759 2003-05-05

Publications (2)

Publication Number Publication Date
WO2004100068A2 WO2004100068A2 (en) 2004-11-18
WO2004100068A3 true WO2004100068A3 (en) 2005-02-17

Family

ID=33435202

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2004/014383 Ceased WO2004100068A2 (en) 2003-05-05 2004-05-05 Optical coherence tomography imaging

Country Status (6)

Country Link
US (3) US7355721B2 (en)
EP (1) EP1620007A4 (en)
JP (1) JP4571625B2 (en)
AU (1) AU2004237243B2 (en)
CA (1) CA2536969C (en)
WO (1) WO2004100068A2 (en)

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