DE893571C - Tooth sleeves and dental posts - Google Patents

Tooth sleeves and dental posts

Info

Publication number
DE893571C
DE893571C DEH10946A DEH0010946A DE893571C DE 893571 C DE893571 C DE 893571C DE H10946 A DEH10946 A DE H10946A DE H0010946 A DEH0010946 A DE H0010946A DE 893571 C DE893571 C DE 893571C
Authority
DE
Germany
Prior art keywords
tooth
gold
sleeves
alloys
palladium
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
DEH10946A
Other languages
German (de)
Inventor
Gretelore Raunecker
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.)
WC Heraus GmbH and Co KG
Original Assignee
WC Heraus GmbH and Co KG
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 WC Heraus GmbH and Co KG filed Critical WC Heraus GmbH and Co KG
Priority to DEH10946A priority Critical patent/DE893571C/en
Application granted granted Critical
Publication of DE893571C publication Critical patent/DE893571C/en
Expired 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

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Preparations (AREA)

Description

Zahnhülsen und Zahnstifte Als Werkstoffe für Zahnhülsen, die in Porzellanzähne zur Aufnahme des für die Verankerung der Zähne dienenden Stiftes eingebrannt werden, verwendet man hauptsächlich Gold-Palladium-Legierungen mit überwiegendem Goldgehalt. Hülsen aus Legierungen mit überwiegendem Palladiumgehalt zeigen oft infolge Porenbildung während des Einbrennens eine mangelhafte Festigkeit. Allerdings genügen Legierungen mit überwiegendem Palladiumgehalt bei Zusatz von Platin ebenfalls den gestellten Anforderungen.Tooth sleeves and tooth pins As materials for tooth sleeves that are used in porcelain teeth are burned in to hold the pin used to anchor the teeth, mainly gold-palladium alloys with a predominant gold content are used. Sleeves made from alloys with a predominant palladium content often show pore formation as a result insufficient strength during baking. However, alloys are sufficient with a predominant palladium content with the addition of platinum also the provided ones Requirements.

Es wurde nun die überraschende Beobachtung gemacht, daß Dreistofflegierungen aus Palladium, Silber und Gold auch mit überwiegendem Palladiumgehalt einen wertvollen Werkstoff für die Lierstellung von Zahnhülsen und Zahnstiften darstellen. Die Legierungen der Erfindung haben die Zusammensetzung: 60 bis 90%, insbesondere 65 bis go°/o Palladium, Rest Gold und Silber, wobei von jedem dieser beiden Metalle mindestens 5 0/0 anwesend sein müssen. Besonders günstige Ergebnisse erhält man, wenn der Gold- und Silbergehalt etwa in derselben Größenordnung liegt. The surprising observation has now been made that ternary alloys from palladium, silver and gold, also with predominantly palladium content, a valuable one Represent material for the Lierstellung of tooth sleeves and tooth pins. The alloys of the invention have the composition: 60 to 90%, in particular 65 to 20% palladium, The remainder is gold and silver, with at least 5% of each of these metals present must be. Particularly favorable results are obtained when the gold and silver content is about the same order of magnitude.

Die günstigen Eigenschaften der Legierungen bleiben im wesentlichen erhalten, wenn man einen Teil des Goldes und Silbers durch Kupfer derart ersetzt, daß der Kupfergehalt 15% nicht überschreitet. Vorteilhaft liegt der Kupfergehalt zwischen 2 und IO°/o. Der Gehalt an anderen Unedelmetallen, wie Eisen, Kobalt und Nickel, soll jedoch 5% nicht übersteigen. The favorable properties of the alloys essentially remain obtained by replacing part of the gold and silver with copper in such a way that that the copper content does not exceed 15%. The copper content is advantageous between 2 and 10 ° / o. The content of other base metals, such as iron, cobalt and Nickel, but should not exceed 5%.

Die Zahnhülsen und Zahnstifte aus Legierungen der Erfindung zeigen beim Einbrennen ein tadelloses Verhalten. Es wird keine Bläschenbildng beobachtet und lceine Verfärbung des Porzellanzahnes; diese Tatsache ist insbesondere bei Legierungen mit einem Kupfergehalt recht überraschend. The alloy tooth sleeves and tooth pins of the invention show flawless behavior when branding. There will be no vesicle formation observed and ic a discoloration of the porcelain tooth; this fact is especially true with alloys with a copper content quite surprising.

Legierungen, die erfindungsgemäß zur Herstellung von Zahnhülsen und Zahnstiften benutzt werden, haben beispielsweise folgende Zusammensetzung: 1. 70% Palladium, 17% Silber, 13% Gold; 2. 700/0 Palladium, 15% Silber, 100/0 Gold, 5 0/o Kupfer. Alloys according to the invention for the production of tooth sleeves and Dental posts are used, for example, have the following composition: 1. 70% Palladium, 17% silver, 13% gold; 2. 700/0 palladium, 15% silver, 100/0 gold, 5 0 / o Copper.

Claims (3)

PATENTANSPRÜCHE: I. Zahnhülsen und Zahnstifte, gekennzeichnet durch die Herstellung aus Legierungen der Zusammensetzung : 60 bis 90%, insbesondere 65 bis 80% Palladium und Rest Gold und Silber, wobei von jedem dieser beiden Metalle mindestens 5% anwesend sein müssen. PATENT CLAIMS: I. Tooth sleeves and tooth pins, characterized by manufacture from alloys of the composition: 60 to 90%, especially 65 up to 80% palladium and the remainder gold and silver, each of these two metals at least 5% must be present. 2. Zahnhülsen und Zahnstifte gemäß Anspruch 1, dadurch gekennzeichnet, daß bis zu 150/0, insbesondere 2 bis 10% des Gold- und Silbergehaltes durch Kupfer ersetzt sind. 2. Tooth sleeves and tooth pins according to claim 1, characterized in that that up to 150/0, in particular 2 to 10% of the gold and silver content by copper are replaced. 3. Zahnhülsen und Zahnstifte gemäß Anspruch 1 und 2, dadurch gekennzeichnet, daß bis zu 5% des Gold- und Silbergehaltes durch andere Unedelmetalle als Kupfer, beispielsweise Eisen, Kobalt und Nidkel, ersetzt sind. 3. Tooth sleeves and tooth pins according to claim 1 and 2, characterized in that that up to 5% of the gold and silver content is due to base metals other than copper, for example iron, cobalt and nidkel are replaced.
DEH10946A 1952-01-01 1952-01-01 Tooth sleeves and dental posts Expired DE893571C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH10946A DE893571C (en) 1952-01-01 1952-01-01 Tooth sleeves and dental posts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH10946A DE893571C (en) 1952-01-01 1952-01-01 Tooth sleeves and dental posts

Publications (1)

Publication Number Publication Date
DE893571C true DE893571C (en) 1953-10-15

Family

ID=7146612

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH10946A Expired DE893571C (en) 1952-01-01 1952-01-01 Tooth sleeves and dental posts

Country Status (1)

Country Link
DE (1) DE893571C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095985B (en) * 1954-09-01 1960-12-29 Dentists Supply Co Process for the production of an artificial porcelain tooth
US5051235A (en) * 1987-06-26 1991-09-24 Comptoir Lyon-Alemand-Louyot, Societe Anonyme Novel palladium-based alloys containing indium bismuth, silver and copper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1095985B (en) * 1954-09-01 1960-12-29 Dentists Supply Co Process for the production of an artificial porcelain tooth
US5051235A (en) * 1987-06-26 1991-09-24 Comptoir Lyon-Alemand-Louyot, Societe Anonyme Novel palladium-based alloys containing indium bismuth, silver and copper

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