FR2307514A1 - Steel prepn. prior to attaching to porcelain - by heat treatment in vacuo then in air, to improve subsequent adhesion - Google Patents

Steel prepn. prior to attaching to porcelain - by heat treatment in vacuo then in air, to improve subsequent adhesion

Info

Publication number
FR2307514A1
FR2307514A1 FR7512568A FR7512568A FR2307514A1 FR 2307514 A1 FR2307514 A1 FR 2307514A1 FR 7512568 A FR7512568 A FR 7512568A FR 7512568 A FR7512568 A FR 7512568A FR 2307514 A1 FR2307514 A1 FR 2307514A1
Authority
FR
France
Prior art keywords
steel
porcelain
degrees
gold
heat treatment
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.)
Withdrawn
Application number
FR7512568A
Other languages
French (fr)
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 FR7512568A priority Critical patent/FR2307514A1/en
Publication of FR2307514A1 publication Critical patent/FR2307514A1/en
Withdrawn legal-status Critical Current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
    • A61C13/00—Dental prostheses; Making same
    • A61C13/08—Artificial teeth; Making same
    • A61C13/083—Porcelain or ceramic teeth
    • A61C13/0835—Ceramic coating on metallic body

Abstract

In a process for making a steel reinforced dental prosthesis, the steel is first provided with a gold masking film to prevent the steel from being seen in known manner, then heat treated and attached to the porcelain. The novelty is that the heat treatment comprises (1) introducing the steel reinforcement into a furnace heated to 750 degrees C, (2) raiding the temp. to 890 degrees C under vacuum and holding the temp. for about a minute, (3) releasing the vacum and heating to 940 degrees C, (4) cooling slowly to below red heat, then (5) removing from the furnace and air cooling to ambient temp. Used for mfr. of crowns, bridges, etc. The process is applied to ordinary steel, avoiding the more expensive special steels and gold. The porcelain adheres to the steel at least as well as when Stellite (RTM) or gold are used. Porcelain teeth may be attached directly onto Stellite which was previously impossible.
FR7512568A 1975-04-17 1975-04-17 Steel prepn. prior to attaching to porcelain - by heat treatment in vacuo then in air, to improve subsequent adhesion Withdrawn FR2307514A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7512568A FR2307514A1 (en) 1975-04-17 1975-04-17 Steel prepn. prior to attaching to porcelain - by heat treatment in vacuo then in air, to improve subsequent adhesion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7512568A FR2307514A1 (en) 1975-04-17 1975-04-17 Steel prepn. prior to attaching to porcelain - by heat treatment in vacuo then in air, to improve subsequent adhesion

Publications (1)

Publication Number Publication Date
FR2307514A1 true FR2307514A1 (en) 1976-11-12

Family

ID=9154334

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7512568A Withdrawn FR2307514A1 (en) 1975-04-17 1975-04-17 Steel prepn. prior to attaching to porcelain - by heat treatment in vacuo then in air, to improve subsequent adhesion

Country Status (1)

Country Link
FR (1) FR2307514A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490950A1 (en) * 1980-09-26 1982-04-02 Orio Eugene Mfg. coated prosthesis, esp. dental prosthesis - with improved coating adhesion by provision of cathodically sputtered intermediate layer
FR2628416A1 (en) * 1988-03-14 1989-09-15 Durand Girard Ets PROCESS FOR COOKING CERAMICS AND DENTAL METALLO-CERAMIC COMPOUNDS
CN107961091A (en) * 2018-01-04 2018-04-27 北京圣爱吉友和义齿制作有限公司 A kind of baking-ceramic tooth manufacture craft

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2490950A1 (en) * 1980-09-26 1982-04-02 Orio Eugene Mfg. coated prosthesis, esp. dental prosthesis - with improved coating adhesion by provision of cathodically sputtered intermediate layer
FR2628416A1 (en) * 1988-03-14 1989-09-15 Durand Girard Ets PROCESS FOR COOKING CERAMICS AND DENTAL METALLO-CERAMIC COMPOUNDS
EP0337897A1 (en) * 1988-03-14 1989-10-18 ETABLISSEMENTS DURAND - GIRARD Société Anonyme Method for firing ceramics, and metalloceramic dental compositions
CN107961091A (en) * 2018-01-04 2018-04-27 北京圣爱吉友和义齿制作有限公司 A kind of baking-ceramic tooth manufacture craft
CN107961091B (en) * 2018-01-04 2020-10-02 北京圣爱吉友和义齿制作有限公司 Process for manufacturing porcelain teeth

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