DE3774499D1 - Verfahren und vorrichtung zur bestimmung und darstellung der dreidimensionalen gestalt von praeparierten zaehnen. - Google Patents

Verfahren und vorrichtung zur bestimmung und darstellung der dreidimensionalen gestalt von praeparierten zaehnen.

Info

Publication number
DE3774499D1
DE3774499D1 DE8787108531T DE3774499T DE3774499D1 DE 3774499 D1 DE3774499 D1 DE 3774499D1 DE 8787108531 T DE8787108531 T DE 8787108531T DE 3774499 T DE3774499 T DE 3774499T DE 3774499 D1 DE3774499 D1 DE 3774499D1
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DE
Germany
Prior art keywords
image
grey scale
pseudoplastic
profile
contrast
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.)
Expired - Lifetime
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DE8787108531T
Other languages
English (en)
Inventor
Marco Brandestini
Werner H Moermann
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.)
Sirona Dental Systems GmbH
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=4235452&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3774499(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of DE3774499D1 publication Critical patent/DE3774499D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • A61C9/006—Optical means or methods, e.g. scanning the teeth by a laser or light beam projecting one or more stripes or patterns on the teeth
    • 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
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
DE8787108531T 1986-06-24 1987-06-12 Verfahren und vorrichtung zur bestimmung und darstellung der dreidimensionalen gestalt von praeparierten zaehnen. Expired - Lifetime DE3774499D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH2512/86A CH672722A5 (de) 1986-06-24 1986-06-24

Publications (1)

Publication Number Publication Date
DE3774499D1 true DE3774499D1 (de) 1991-12-19

Family

ID=4235452

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8787108531T Expired - Lifetime DE3774499D1 (de) 1986-06-24 1987-06-12 Verfahren und vorrichtung zur bestimmung und darstellung der dreidimensionalen gestalt von praeparierten zaehnen.

Country Status (6)

Country Link
US (1) US4837732A (de)
EP (1) EP0250993B1 (de)
JP (1) JP2654646B2 (de)
AT (1) ATE69369T1 (de)
CH (1) CH672722A5 (de)
DE (1) DE3774499D1 (de)

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* Cited by examiner, † Cited by third party
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CH672722A5 (de) 1989-12-29
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JPS6323656A (ja) 1988-01-30
JP2654646B2 (ja) 1997-09-17
US4837732A (en) 1989-06-06
EP0250993A3 (en) 1988-11-02

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Free format text: BRANDESTINI, MARCO, DR.SC.TECHN., ZOLLIKON, CH MOERMANN, WERNER H.DR.MED.DENT., ZUERICH, CH