CA2124154A1 - Dental modeling simulator - Google Patents

Dental modeling simulator

Info

Publication number
CA2124154A1
CA2124154A1 CA002124154A CA2124154A CA2124154A1 CA 2124154 A1 CA2124154 A1 CA 2124154A1 CA 002124154 A CA002124154 A CA 002124154A CA 2124154 A CA2124154 A CA 2124154A CA 2124154 A1 CA2124154 A1 CA 2124154A1
Authority
CA
Canada
Prior art keywords
impression
teeth
mandibular
occlusal
bite
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.)
Granted
Application number
CA002124154A
Other languages
French (fr)
Other versions
CA2124154C (en
Inventor
Chuang-Jy Wu
Christopher L.B. Lavelle
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.)
Dacim Laboratory Inc
Original Assignee
Dacim Laboratory Inc
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 Dacim Laboratory Inc filed Critical Dacim Laboratory Inc
Publication of CA2124154A1 publication Critical patent/CA2124154A1/en
Application granted granted Critical
Publication of CA2124154C publication Critical patent/CA2124154C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H30/00—ICT specially adapted for the handling or processing of medical images

Abstract

A three-dimensional model of the teeth of a patient is prepared by taking molded impressions of the mandibular and maxillar teeth, placing separately the impressions on a support table define an X-Y plane and detecting the Z distance from a probe by directing a beam of laser light onto the impression and calculating from the pattern of reflected light a centre of the light falling on an area array. The scanning in the X-Y plane is effected continuously and is limited by datum points defining a dental arch. The impression is then tilted and the process repeated and information correlated to provide the three-dimensional model. A partial impression is then taken of both mandibular and maxillar teeth in comparison with datum points to provide information concerning the bite (occlusal) positions of the teeth.
This information is then compared with the full impression to simulate using the digital images movement of the jaw from an open position to the bite (occlusal) position.
CA002124154A 1993-11-22 1994-05-24 Dental modeling simulator Expired - Fee Related CA2124154C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/155,134 US5338198A (en) 1993-11-22 1993-11-22 Dental modeling simulator
US155,134 1993-11-22

Publications (2)

Publication Number Publication Date
CA2124154A1 true CA2124154A1 (en) 1995-05-23
CA2124154C CA2124154C (en) 2002-07-23

Family

ID=22554230

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002124154A Expired - Fee Related CA2124154C (en) 1993-11-22 1994-05-24 Dental modeling simulator

Country Status (2)

Country Link
US (1) US5338198A (en)
CA (1) CA2124154C (en)

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US4663720A (en) * 1984-02-21 1987-05-05 Francois Duret Method of and apparatus for making a prosthesis, especially a dental prosthesis
CH672722A5 (en) * 1986-06-24 1989-12-29 Marco Brandestini
DE3723555C2 (en) * 1987-07-16 1994-08-11 Steinbichler Hans Process for the production of dentures

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