GB897686A - Improvements in and relating to ceramic artificial teeth and a process for the preparation thereof - Google Patents

Improvements in and relating to ceramic artificial teeth and a process for the preparation thereof

Info

Publication number
GB897686A
GB897686A GB675/61A GB67561A GB897686A GB 897686 A GB897686 A GB 897686A GB 675/61 A GB675/61 A GB 675/61A GB 67561 A GB67561 A GB 67561A GB 897686 A GB897686 A GB 897686A
Authority
GB
United Kingdom
Prior art keywords
ceramic
relating
preparation
opacifiers
artificial teeth
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
Application number
GB675/61A
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.)
Individual
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
Application filed by Individual filed Critical Individual
Priority to GB675/61A priority Critical patent/GB897686A/en
Publication of GB897686A publication Critical patent/GB897686A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/15—Compositions characterised by their physical properties
    • A61K6/17—Particle size
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/818—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising zirconium oxide
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • A61K6/824—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics comprising transition metal oxides

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Ceramic Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Engineering & Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Compositions Of Oxide Ceramics (AREA)

Abstract

The desired optical characteristics are obtained in ceramic teeth by incorporating opacifiers of a particle size approximating to the wavelength of visible light, preferably between 0.8 and 0.4 microns. The parent substance is preferably feldspar or sodium or potassium aluminium silicate. Suitable materials as opacifiers are aluminium oxide, quartz, tin oxide and zirconium oxide. They may be added to the ceramic substance by mixing prior to vitrification, formed by crystallization within the melt, the process being so controlled as to produce particles of the desired size, or precipitated on the particles of the ceramic compound.
GB675/61A 1961-01-06 1961-01-06 Improvements in and relating to ceramic artificial teeth and a process for the preparation thereof Expired GB897686A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB675/61A GB897686A (en) 1961-01-06 1961-01-06 Improvements in and relating to ceramic artificial teeth and a process for the preparation thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB675/61A GB897686A (en) 1961-01-06 1961-01-06 Improvements in and relating to ceramic artificial teeth and a process for the preparation thereof

Publications (1)

Publication Number Publication Date
GB897686A true GB897686A (en) 1962-05-30

Family

ID=9708561

Family Applications (1)

Application Number Title Priority Date Filing Date
GB675/61A Expired GB897686A (en) 1961-01-06 1961-01-06 Improvements in and relating to ceramic artificial teeth and a process for the preparation thereof

Country Status (1)

Country Link
GB (1) GB897686A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0518454A2 (en) * 1991-06-13 1992-12-16 Ivoclar Ag Use of a composition for the preparation of an opaque dental material

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0518454A2 (en) * 1991-06-13 1992-12-16 Ivoclar Ag Use of a composition for the preparation of an opaque dental material
EP0518454A3 (en) * 1991-06-13 1993-01-20 Ivoclar Ag Use of a composition for the preparation of a dental opaque material

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