AT292915B - Dentures and implants used in surgery - Google Patents

Dentures and implants used in surgery

Info

Publication number
AT292915B
AT292915B AT1124869A AT1124869A AT292915B AT 292915 B AT292915 B AT 292915B AT 1124869 A AT1124869 A AT 1124869A AT 1124869 A AT1124869 A AT 1124869A AT 292915 B AT292915 B AT 292915B
Authority
AT
Austria
Prior art keywords
sep
surgery
dentures
alloys
implants used
Prior art date
Application number
AT1124869A
Other languages
German (de)
Original Assignee
Krupp Gmbh
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 Krupp Gmbh filed Critical Krupp Gmbh
Priority to AT1124869A priority Critical patent/AT292915B/en
Application granted granted Critical
Publication of AT292915B publication Critical patent/AT292915B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C19/00—Alloys based on nickel or cobalt
    • C22C19/07—Alloys based on nickel or cobalt based on cobalt
    • 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
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Materials For Medical Uses (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Zahnprothesen und in der Chirurgie verwendete Implantate 
Es ist bekannt, metallische Zahnprothesen und in der Chirurgie verwendete Implantate aus Chrom- - Kobaltlegierungen herzustellen, die 40 bis 87, 991o Kobalt, 6 bis   40%   Chrom, 6 bis   3010   Wolfram oder 
 EMI1.1 
 enthalten. Praktische Bedeutung für diesen Verwendungszweck haben Legierungen erhalten, deren Zusammensetzung überwiegend bei 27 bis   31%   Chrom,   4, 5   bis   6, 5% Molybdän,   bis zu 110 Mangan und Eisen, bis zu   ouzo   Kohlenstoff, Wolfram und Silizium, gegebenenfalls 0, 5 bis   41o   Nickel, Aluminium und/oder Vanadium, Rest Kobalt liegt.

   Diese bekannten Legierungen besitzen bei grosser Zugfestigkeit   von etwa 90 kp/mm   noch eine ausreichende Dehnung von etwa 810 bei guter Verträglichkeit im menschlichen Körper. Ferner wird für diesen Zweck in bekannter Weise eine Legierung verwendet, die neben 
 EMI1.2 
 hält. Diese Legierung hat einige bessere technologische Kennwerte, ist jedoch wegen des Gehaltes an Beryllium möglicherweise etwas toxisch. In der Regel wird das Erschmelzen und Vergiessen der Legierungen in Vakuum- oder Schutzgas-Schmelzaggregaten und die Herstellung der Prothesen und Implantate in Schutzanlagen zwecks Erzielung einer höheren Reinheit und Gasfreiheit durchgeführt. 



   Gemäss der Erfindung werden Zahnprothesen und in der Chirurgie verwendete Implantate aus Legierungen hergestellt, die 5 bis   151o   Chrom, 5 bis   15%   Nickel, 0 bis   3%   Molybdän, 0 bis 110 Kohlenstoff, Silizium, Mangan, Aluminium und/oder Eisen, 4 bis   110/0   Titan und als Rest Kobalt enthalten. 



   Es hat sich gezeigt, dass diese verhältnismässig viel Titan, jedoch entweder kein oder nur verhältnismässig wenig Molybdän enthaltenden Legierungen für den angegebenen Zweck besonders geeignet sind, weil sie überraschenderweise ausgezeichnete Dehnungswerte bei gleichzeitig grossen Zugfestigkeiten aufweisen. So besitzen beispielsweise folgende drei Legierungen, bestehend aus 
 EMI1.3 
 
 EMI1.4 
 
<tb> 
<tb> Legierung <SEP> 0, <SEP> 2-Dehngrenze <SEP> Zugfestigkeit <SEP> Dehnung <SEP> in <SEP> : <SEP> 1/0 <SEP> 
<tb> inkp/mm <SEP> inkp/mm <SEP> 
<tb> A <SEP> 74, <SEP> 7 <SEP> 98, <SEP> 0 <SEP> 12, <SEP> 7 <SEP> 
<tb> B <SEP> 77, <SEP> 5 <SEP> 113, <SEP> 5 <SEP> 11, <SEP> 4 <SEP> 
<tb> C <SEP> 81, <SEP> 5 <SEP> 112, <SEP> 2 <SEP> 10, <SEP> 0 <SEP> 
<tb> 




   <Desc / Clms Page number 1>
 



  Dentures and implants used in surgery
It is known to manufacture metallic dentures and implants used in surgery from chromium - cobalt alloys, the 40 to 87, 991o cobalt, 6 to 40% chromium, 6 to 3010 tungsten or
 EMI1.1
 contain. Alloys have gained practical importance for this purpose, the composition of which is predominantly 27 to 31% chromium, 4.5 to 6.5% molybdenum, up to 110 manganese and iron, up to ouzo carbon, tungsten and silicon, optionally 0.5 to 41o nickel, aluminum and / or vanadium, the remainder cobalt.

   With a high tensile strength of about 90 kp / mm, these known alloys still have a sufficient elongation of about 810 with good compatibility in the human body. Furthermore, an alloy is used for this purpose in a known manner, which in addition to
 EMI1.2
 holds. This alloy has some better technological characteristics, but may be somewhat toxic because of its beryllium content. As a rule, the alloys are melted and cast in vacuum or protective gas melting units and the prostheses and implants are manufactured in protective systems in order to achieve greater purity and freedom from gas.



   According to the invention, dental prostheses and implants used in surgery are made of alloys containing 5 to 15% chromium, 5 to 15% nickel, 0 to 3% molybdenum, 0 to 110% carbon, silicon, manganese, aluminum and / or iron, 4 to 110/0 titanium and the remainder cobalt.



   It has been shown that these alloys containing a relatively large amount of titanium, but either no or only a relatively little molybdenum containing alloys, are particularly suitable for the stated purpose because they surprisingly have excellent elongation values with high tensile strengths at the same time. For example, have the following three alloys, consisting of
 EMI1.3
 
 EMI1.4
 
<tb>
<tb> alloy <SEP> 0, <SEP> 2-proof stress <SEP> tensile strength <SEP> elongation <SEP> in <SEP>: <SEP> 1/0 <SEP>
<tb> inkp / mm <SEP> inkp / mm <SEP>
<tb> A <SEP> 74, <SEP> 7 <SEP> 98, <SEP> 0 <SEP> 12, <SEP> 7 <SEP>
<tb> B <SEP> 77, <SEP> 5 <SEP> 113, <SEP> 5 <SEP> 11, <SEP> 4 <SEP>
<tb> C <SEP> 81, <SEP> 5 <SEP> 112, <SEP> 2 <SEP> 10, <SEP> 0 <SEP>
<tb>

Claims (1)

PATENTANSPRUCH : EMI2.1 ten. PATENT CLAIM: EMI2.1 th. Druckschriften, die das Patentamt zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik in Betracht gezogen hat : CH-PS 184417 Publications that the patent office has considered to differentiate the subject matter of the application from the state of the art: CH-PS 184417
AT1124869A 1969-12-02 1969-12-02 Dentures and implants used in surgery AT292915B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT1124869A AT292915B (en) 1969-12-02 1969-12-02 Dentures and implants used in surgery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT1124869A AT292915B (en) 1969-12-02 1969-12-02 Dentures and implants used in surgery

Publications (1)

Publication Number Publication Date
AT292915B true AT292915B (en) 1971-09-10

Family

ID=3627672

Family Applications (1)

Application Number Title Priority Date Filing Date
AT1124869A AT292915B (en) 1969-12-02 1969-12-02 Dentures and implants used in surgery

Country Status (1)

Country Link
AT (1) AT292915B (en)

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Legal Events

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