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
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
- A61C8/0012—Means 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
- A61C8/0013—Means 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
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2/00—Filters 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
- A61F2/02—Prostheses implantable into the body
- A61F2/30—Joints
- A61F2/30767—Special external or bone-contacting surface, e.g. coating for improving bone ingrowth
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS 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
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/28—Materials for coating prostheses
- A61L27/30—Inorganic materials
- A61L27/32—Phosphorus-containing materials, e.g. apatite
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS 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
- A61F2310/00—Prostheses classified in A61F2/28 or A61F2/30 - A61F2/44 being constructed from or coated with a particular material
- A61F2310/00389—The prosthesis being coated or covered with a particular material
- A61F2310/00592—Coating or prosthesis-covering structure made of ceramics or of ceramic-like compounds
- A61F2310/00796—Coating 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)
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)
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)
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 |
-
1970
- 1970-02-20 DE DE19702008010 patent/DE2008010C3/en not_active Expired
Cited By (3)
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 |