DE2008010B2 - - Google Patents

Info

Publication number
DE2008010B2
DE2008010B2 DE19702008010 DE2008010A DE2008010B2 DE 2008010 B2 DE2008010 B2 DE 2008010B2 DE 19702008010 DE19702008010 DE 19702008010 DE 2008010 A DE2008010 A DE 2008010A DE 2008010 B2 DE2008010 B2 DE 2008010B2
Authority
DE
Germany
Prior art keywords
phosphate
eutectoid
tricalcium phosphate
bone
dental implants
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.)
Granted
Application number
DE19702008010
Other languages
German (de)
Other versions
DE2008010C3 (en
DE2008010A1 (en
Inventor
Antonin Dr. 8630 Coburg Novotny
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.)
Schneider & Co 5020 Frechen GmbH
Original Assignee
Schneider & Co 5020 Frechen 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 Schneider & Co 5020 Frechen GmbH filed Critical Schneider & Co 5020 Frechen GmbH
Priority to DE19702008010 priority Critical patent/DE2008010C3/en
Publication of DE2008010A1 publication Critical patent/DE2008010A1/en
Publication of DE2008010B2 publication Critical patent/DE2008010B2/de
Application granted granted Critical
Publication of DE2008010C3 publication Critical patent/DE2008010C3/en
Expired legal-status Critical Current

Links

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0012Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0012Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy
    • A61C8/0013Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the material or composition, e.g. ceramics, surface layer, metal alloy with a surface layer, coating
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2/00Filters implantable into blood vessels; Prostheses, i.e. artificial substitutes or replacements for parts of the body; Appliances for connecting them with the body; Devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents
    • A61F2/02Prostheses implantable into the body
    • A61F2/30Joints
    • A61F2/30767Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61LMETHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L27/00Materials for grafts or prostheses or for coating grafts or prostheses
    • A61L27/28Materials for coating prostheses
    • A61L27/30Inorganic materials
    • A61L27/32Phosphorus-containing materials, e.g. apatite
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F2310/00Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
    • A61F2310/00389The prosthesis being coated or covered with a particular material
    • A61F2310/00592Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
    • A61F2310/00796Coating or prosthesis-covering structure made of a phosphorus-containing compound, e.g. hydroxy(l)apatite

Description

Die Erfindung bezieht sich auf die Herstellung von Dentalimplantaten.The invention relates to the manufacture of dental implants.

Es ist bekannt, Knochenteile von einem Körperteil in einen anderen Körperteil zu transplantieren. Solche Transplantationen werden schon seit längerer Zeit mit mehr oder weniger gutem Erfolg durchgeführt. In jedem Falle sind aber bei solchen Transplantationen Donor und Akzeptor ein und dieselbe Person.It is known to transplant bone parts from one part of the body to another part of the body. Such Transplants have been carried out for a long time with more or less good success. In each In such transplants, however, the donor and acceptor are one and the same person.

Es ist ferner eine künstliche Zahnwurzel bekannt (AT-PS 152 118) bei der ein innerer Kern aus unangreifbarem Metall, z. B. Gold, von einer äußeren Schicht eines dem Kieferknochen verwandten Materials, zweckmäßig Elfenbein, umgeben ist.There is also an artificial tooth root known (AT-PS 152 118) in which an inner core is made unassailable metal, e.g. B. Gold, from an outer layer of a material related to the jawbone, appropriately ivory, surrounded.

Eine ähnliche Anregung läßt sich der DD-PS 12 921 entnehmen, nach der eine für Implantation verwendbare Zahnwurzel aus Kunststoff an ihrer Außenseite Elfenbeinteilchen, z. B. Elfenbeinpulver oder ähnliche knochenartige Teilchen aufweisen soll.A similar suggestion can be found in DD-PS 12 921, according to which one can be used for implantation Tooth roots made of plastic on their outside ivory particles, e.g. B. ivory powder or the like should have bone-like particles.

Zum Stande der Technik gehört nach der AT-PS 1 28 568 auch die Befestigung künstlicher Zähne im Kieferknochen, bei der eine Hülse mit nachträglich eingesetztem Zahn Verwendung findet, wobei die Hülsenaußenfläche mit einem Schraubengewinde zum Einschrauben in das Kieferbein versehen ist, welches zweckmäßig scharfkantig und gegen das Ende zu konisch verjüngt ist.According to AT-PS 1 28 568, the prior art also includes the attachment of artificial teeth in the Jawbone in which a sleeve with a tooth inserted afterwards is used, whereby the The outer surface of the sleeve is provided with a screw thread for screwing into the jawbone, which is appropriately sharp-edged and tapered too conically towards the end.

Obwohl Operationen mit solchen künstlichen Zahnwurzeln zu recht giuen Erfolgen führen, sind sie jedoch nie eine echte und dauerhafte Lösung.Although operations with such artificial tooth roots are quite successful, they are never a real and permanent solution.

Es ist ferner bereits in Erwägung gezogen worden, aus Keramik bestehende Knochenersatzteile zu verwenden. Die erste Stufe hierfür war die Verwendung reinen Aluminiumoxyds, von dem man annahm, daß es in seiner Elastizität den menschlichen Knochen im wesentlichen entspreche. Auch die Imprägnierung solcher Aluminiumoxydmaterialien mit Epoxydharzen ist bereits bekanntIt has also already been considered to use bone replacement parts made of ceramic. The first step in this was to use pure alumina, which was believed to be in its elasticity corresponds essentially to that of human bones. Also the impregnation Such aluminum oxide materials with epoxy resins are already known

Man hat auch bereits versucht, aus Keramikmaterial bestehende Zähne einzupflanzen.Attempts have also been made to implant teeth made of ceramic material.

Es ist ferner bekannt, daß der Hauptbestandteil des mineralischen Knochenteils durch HydroxylapatitIt is also known that the main component of the mineral bone part is hydroxyapatite

ίο (Ca5(PO4)S · OH) gebildet wird. Die Herstellung von Dentalimplantaten aus solchen Calciumphosph;.ten ist jedoch nicht erfolgreich, weil diese Ersatzteile niemals die Festigkeitswerte erreichen, die es ermöglichen würden, sie gefahrlos in den menschlichen Körper einzusetzen.ίο (Ca 5 (PO 4 ) S OH) is formed. However, the production of dental implants from such calcium phosphate is unsuccessful because these replacement parts never achieve the strength values that would enable them to be safely inserted into the human body.

Andererseits zeigt aber gerade Hydroxylapatit Eigenschaften, die ein gutes Anwachsen von Muskel- und Bindegewebe an den Knochenersatzteil aussichtsreich erscheinen läßtOn the other hand, however, hydroxyapatite in particular shows properties that allow good growth of muscle and connective tissue on the bone replacement part appears promising

Die Erfindung erstrebt also die Schaffung eines Verfahrens zur Herstellung von Dentalimplantaten, bei denen die wertvollen Eigenschaften des Hydroxylapatits zur Wirkung kommen, trotzdem aber ein Implantat entsteht, das auch die nötige Festigkeit aufweistThe invention thus seeks to create a method for producing dental implants which the valuable properties of hydroxyapatite come into play, but still an implant arises, which also has the necessary strength

Zur optimalen Herstellung des Hydroxylapatits benötigt man eine eutektische Mischung des Tricalciumphosphates und des Tetracaiciumphosphates. Diese Mischung kann man synthetisch herstellen oder vorzugsweise als Eutektoid die Knochenasche verwenden. Dieses Eutektoid kann man durch einen Heißspritzprozcß auf eine mechanisch geeignete Unterlage aufspritzen.A eutectic mixture of tricalcium phosphate is required for the optimal production of hydroxyapatite and of tetracalcium phosphate. This mixture can be produced synthetically or preferably use the bone ash as the eutectoid. This eutectoid can be produced by a hot spray process spray onto a mechanically suitable surface.

Das erfindungsgemäße Verfahren wird vorteilhaft so geführt, daß wenigstens der Überzug bei einer Temperatur von etwa 10000C in einer Wassetdampfaimosphäre geglüht wird.The inventive method is advantageously carried out so that at least the coating is annealed at a temperature of about 1000 0 C in a Wassetdampfaimosphäre.

Durch die Erfindung werden also die hervorragenden Eigenschaften des Hydroxylapatits zur Herstellung von Dentalimplantaten ausgenutzt.The invention therefore makes the excellent properties of hydroxyapatite for the production of Dental implants exploited.

AusführungsbeispielEmbodiment

Eine eutektische Mischung aus Tricalciumphosphat und Tetracalciumphosphat wird bei etwa 15600C geschmolzen. Nach dem Abkühlen der Schmelze bildet sich ein Glas. Dieses Glas wird zermahlen und mit Hilfe einer Flamm- oder Plasmaspritzvorrichtung auf eine metallische oder nichtmetallische Unterlage, die im wesentlichen die Form des zu ersetzenden Zahnteils aufweist, aufgetragen.A eutectic mixture of tricalcium phosphate and tetracalcium phosphate is melted at about 1560 0 C. After the melt has cooled, a glass forms. This glass is ground and, with the aid of a flame or plasma spray device, applied to a metallic or non-metallic base, which essentially has the shape of the tooth part to be replaced.

Anschließend wird wenigstens die aus diesemThen at least the one from this one

Überzug bestehende Oberfläche bei etwa 10000C in einer wasserdampfhaltigen Atmosphäre geglüht und damit in Hydroxylapiatit zurückgeführt.Existing coating is annealed at about 1000 ° C. in an atmosphere containing water vapor and thus returned to hydroxylapiatite.

Anstelle eines so angesetzten eutektischen Gemisches aus Tricalciumphosphat und Tetracalciumphosphat kann auch entsprechend gemahlene Knochenasche Verwendung finden.Instead of a so prepared eutectic mixture of tricalcium phosphate and tetracalcium phosphate appropriately ground bone ash can also be used.

Claims (3)

Patentansprüche:Patent claims: 1. Verfahren zum herstellen von Dentalimplantaten, bestehend aus einem festen, insbesondere metallischen dem zu ersetzenden Zahn nachgebildeten Kern mit einem Tricalciumphosphat und Tetracalciumphosphat enthaltenden Überzug, dadurch gekennzeichnet, daß auf den Kern aus einem Material wie Metall, Keramik oder einem Kunststoff ein Oberzug aus einem Eutektoid aus Tricalciumphosphat und Tetracalciumphosphat heiß aufgespritzt wird.1. A method for producing dental implants, consisting of a solid, in particular metallic core modeled on the tooth to be replaced with a tricalcium phosphate and Coating containing tetracalcium phosphate, thereby characterized in that on the core made of a material such as metal, ceramic or a Plastic, a cover made of a eutectoid made from tricalcium phosphate and tetracalcium phosphate, hot is sprayed on. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als Eutektoid Knochenasche verwendet wird.2. The method according to claim 1, characterized in that that bone ash is used as the eutectoid. 3. Verfahren nach Anspruch 1 und/oder 2, dadurch gekennzeichnet, daß wenigstens der Überzug bei einer Temperatur von etwa 10000C in einer Wasserdampfatmosphäre geglüht wird.3. The method according to claim 1 and / or 2, characterized in that at least the coating is annealed at a temperature of about 1000 0 C in a steam atmosphere.
DE19702008010 1970-02-20 1970-02-20 Process for the manufacture of dental implants Expired DE2008010C3 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19702008010 DE2008010C3 (en) 1970-02-20 1970-02-20 Process for the manufacture of dental implants

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19702008010 DE2008010C3 (en) 1970-02-20 1970-02-20 Process for the manufacture of dental implants

Publications (3)

Publication Number Publication Date
DE2008010A1 DE2008010A1 (en) 1971-08-26
DE2008010B2 true DE2008010B2 (en) 1979-10-18
DE2008010C3 DE2008010C3 (en) 1980-07-10

Family

ID=5762920

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19702008010 Expired DE2008010C3 (en) 1970-02-20 1970-02-20 Process for the manufacture of dental implants

Country Status (1)

Country Link
DE (1) DE2008010C3 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620056A1 (en) * 1976-05-06 1977-11-24 Albert Saragossi Dentral prosthesis mfr. - by metallising nickel alloy substructure before applying plastics or ceramics coating
DE3527136A1 (en) * 1984-08-31 1986-03-13 Bristol-Myers Co., New York, N.Y. IMPLANT AND METHOD FOR PRODUCING THE SAME

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2315902A1 (en) * 1975-07-01 1977-01-28 Ceraver Metal rod as prosthetic insert into a bone shank - has longitudinal depressions filled with material promoting growth of bone cells
DE2620907C3 (en) * 1976-05-12 1984-09-20 Battelle-Institut E.V., 6000 Frankfurt Anchoring for highly stressed endoprostheses
DE2620890A1 (en) * 1976-05-12 1977-11-17 Battelle Institut E V Partially absorbable bone prosthesis compsn. - comprises calcined calcium phosphates and a bioresistant polymer
JPS5946911B2 (en) * 1976-12-16 1984-11-15 住友化学工業株式会社 implant
FR2383656A1 (en) * 1977-03-16 1978-10-13 Ceraver Implantable titanium (alloy) peg used as bone joint prosthesis - has titania layer to prevent corrosion and a glass which is biologically compatible with tissue and promotes bone growth
JPS53144194A (en) * 1977-05-20 1978-12-15 Kureha Chemical Ind Co Ltd Compound implanted material and making method thereof
DE2733394C3 (en) * 1977-07-23 1984-10-25 Riess, Guido, Prof. Dr.med.dent., 8100 Garmisch-Partenkirchen Artificial tooth with implantable tooth root
FR2410995A1 (en) * 1977-12-09 1979-07-06 Riess Guido DENTAL IMPLANT, AND CORRESPONDING MILLING DEVICE
DE2759214A1 (en) * 1977-12-31 1979-07-05 Scheicher Hans METHOD OF MANUFACTURING IMPLANTS
DE2827529C2 (en) * 1978-06-23 1982-09-30 Battelle-Institut E.V., 6000 Frankfurt Implantable bone replacement material consisting of a metal core and bioactive, sintered calcium phosphate ceramic particles and a process for its production
DE2840064C2 (en) * 1978-09-14 1989-09-21 Hans Dr.med. Dr.med.dent. 8000 München Scheicher Process for the production of bone contact layers
DE2928007A1 (en) * 1979-07-11 1981-01-15 Riess Guido Dr BONE IMPLANT BODY FOR PROSTHESES AND BONE CONNECTORS AND METHOD FOR THE PRODUCTION THEREOF
FR2484246A1 (en) * 1980-06-17 1981-12-18 Europ Propulsion PROCESS FOR PRODUCING BIOACTIVE COATINGS ON BONE PROSTHESES, AND PROSTHESES THUS OBTAINED
USRE33221E (en) * 1982-04-29 1990-05-22 American Dental Association Health Foundation Dental restorative cement pastes
USRE33161E (en) * 1982-04-29 1990-02-06 American Dental Association Health Foundation Combinations of sparingly soluble calcium phosphates in slurries and pastes as mineralizers and cements
FR2548011B2 (en) * 1983-07-01 1985-12-13 Europ Propulsion PROCESS FOR MAKING BIOACTIVE DEPOSITS OF CALCIUM PHOSPHATES AND PRODUCTS OBTAINED
CH661653A5 (en) * 1984-01-11 1987-08-14 Mathys Robert Co PLASTIC SLEEVE.
DE3711426A1 (en) * 1987-04-04 1988-10-13 Mtu Muenchen Gmbh IMPLANT WITH BIOACTIVE COATING
JPH021285A (en) * 1988-01-11 1990-01-05 Asahi Optical Co Ltd Fixable dental and medical granular bone filler, fixing method thereof and bone prosthetic material
IL93251A0 (en) * 1989-02-06 1990-11-29 Pfizer Hospital Prod Method and apparatus for improvement of bone healing
US5522893A (en) * 1993-03-12 1996-06-04 American Dental Association Health Foundation Calcium phosphate hydroxyapatite precursor and methods for making and using the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2620056A1 (en) * 1976-05-06 1977-11-24 Albert Saragossi Dentral prosthesis mfr. - by metallising nickel alloy substructure before applying plastics or ceramics coating
DE3527136A1 (en) * 1984-08-31 1986-03-13 Bristol-Myers Co., New York, N.Y. IMPLANT AND METHOD FOR PRODUCING THE SAME
DE3527136C2 (en) * 1984-08-31 1989-04-13 Bristol-Myers Co., New York, N.Y., Us

Also Published As

Publication number Publication date
DE2008010C3 (en) 1980-07-10
DE2008010A1 (en) 1971-08-26

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Legal Events

Date Code Title Description
OGA New person/name/address of the applicant
C3 Grant after two publication steps (3rd publication)
8339 Ceased/non-payment of the annual fee