DE102006013658A1 - Dental bridge production comprises discharge of ceramic slurry onto substrate with electrical potential difference - Google Patents
Dental bridge production comprises discharge of ceramic slurry onto substrate with electrical potential difference Download PDFInfo
- Publication number
- DE102006013658A1 DE102006013658A1 DE102006013658A DE102006013658A DE102006013658A1 DE 102006013658 A1 DE102006013658 A1 DE 102006013658A1 DE 102006013658 A DE102006013658 A DE 102006013658A DE 102006013658 A DE102006013658 A DE 102006013658A DE 102006013658 A1 DE102006013658 A1 DE 102006013658A1
- Authority
- DE
- Germany
- Prior art keywords
- substrate
- slip
- ceramic
- ceramic slurry
- potential difference
- 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
- A61C13/00—Dental prostheses; Making same
- A61C13/0003—Making bridge-work, inlays, implants or the like
- A61C13/0006—Production methods
- A61C13/001—Electrophoresis coating
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/12—Electroforming by electrophoresis
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D1/00—Electroforming
- C25D1/12—Electroforming by electrophoresis
- C25D1/14—Electroforming by electrophoresis of inorganic material
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/12—Electrophoretic coating characterised by the process characterised by the article coated
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D13/00—Electrophoretic coating characterised by the process
- C25D13/22—Servicing or operating apparatus or multistep processes
Abstract
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Zahnteilen durch elektrophoretisches Freiformen. Unter Zahnteilen im Sinne der Erfindung werden alle Zahnteile verstanden, die in der prothetischen oder konservierenden Behandlung einem Patienten eingesetzt werden können, also Gerüste für Brücken, Käppchen für Einzelzähne, Inlays, aber auch mit Dentin und/oder mit Schneidmaterial beschichteter Zahnersatz.The The invention relates to a method for producing toothed parts by electrophoretic free-forming. Under tooth parts in the sense The invention is understood to mean all dental parts that are in the prosthetic or conservative treatment to a patient can, so scaffolding for bridges, copings for single teeth, inlays, but also coated with dentin and / or with cutting material Dentures.
Das erfindungsgemäße Verfahren basiert auf der elektrophoretischen Abscheidung von Feststoffteilchen aus einem Schlicker. Unter Schlicker im Sinne der Erfindung ist jede geeignete Suspension von Keramik- oder Metallpulver in einem flüssigen Suspensionsmittel gemeint.The inventive method based on the electrophoretic deposition of solid particles from a slip. Under slip in the context of the invention any suitable suspension of ceramic or metal powder in one liquid suspending agent meant.
In
den letzten Jahren hat die Elektrophorese bei der Herstellung von
vollkeramischen Kronen und Brücken
stark an Bedeutung gewonnen. Als Vertreter dieser Technologie werden
folgende Druckschriften genannt: WO 99/50 480 A1,
Auch besteht bei diesen Verfahren der vermeintliche Nachteil, dass Keramiken, wie z.b. Zirkonoxid, die beim Sintern einer Schrumpfung unterliegen, nicht zufrieden stellend bearbeitet werden, da die Keramikmasse auf dem Arbeitsmodell niedergeschlagen wird. Bei Zirkonoxid müsste daher bei diesen Verfahren eine Duplierung des Arbeitsmodells mit einem Expansionsgips vorgenommen werden. Eine Duplierung beinhaltet aber bekanntermaßen eine zusätzliche Fehlerquelle bezüglich der Formgenauigkeit. Mit Alumina dagegen werden mit diesen Verfahren beste Qualitäten auch im Hinblick auf die Festigkeit erzielt.Also In these processes, there is the supposed disadvantage that ceramics, such as. Zirconia which undergoes shrinkage during sintering, can not be satisfactorily processed as the ceramic mass on the working model. For zirconia, therefore, would have In these methods, a duplication of the working model with a Expansion plaster are made. But a duplication includes a known one additional Error source regarding the dimensional accuracy. With Alumina, however, are using this method best qualities also achieved in terms of strength.
In
der älteren
Anmeldung
Ein allgemein bekanntes Verfahren zur Herstellung von Zahngerüsten besteht darin, dass aus einem isostatisch vorgepreßten Block aus Keramik, insbesondere Zirkonoxid, mit der CAD/CAM-Technik ein Gerüst herausgefräst wird. Hierbei wird das Gebiss des Patienten oder ein Arbeitsmodell gescannt und auf der Basis der gescannten Raumform das Gerüst gefräst. Dieses Verfahren ermöglicht eine Kompensation des Sinterschrumpfes bei Zirkonoxid, beinhaltet jedoch einen beachtlichen Fräsaufwand. Ein weiter Nachteil besteht darin, dass durch Fräsen nicht die Genauigkeit von Hohlräumen erzielt werden kann, die durch Abformen auf einem Arbeitsmodell erreicht wird. Dies beruht auf der Tatsache, dass die Genauigkeit beim Innenfräsen durch die Abmessungen des Fräskopfes limitiert ist. Ferner hat dieses Verfahren den weiteren Nachteil, dass ein ästhetisch zufriedenstellender Zahnersatz wegen der Uniformität des Keramikblockes nicht hergestellt werden kann.One well-known method for the production of dental structures in that from an isostatically prepressed block of ceramics, in particular Zirconia, with the CAD / CAM technique, a framework is milled out. Here, the dentition of the patient or a working model is scanned and milled the framework on the basis of the scanned spatial form. This procedure allows a Compensation of sintering shrinkage in zirconia, however, includes a considerable amount of milling. Another disadvantage is that milling does not improve the accuracy of cavities achieved by molding on a working model becomes. This is due to the fact that the accuracy of internal milling through the dimensions of the milling head is limited. Furthermore, this method has the further disadvantage that is aesthetically more satisfying Dentures because of the uniformity of the ceramic block can not be made.
Es ist daher Aufgabe der im Anspruch 1 angegebenen Erfindung, ein Verfahren zur Herstellung von Zahnteilen aus Keramik oder Metall auf der Basis der Scannertechnologie anzugeben, das wesentlich einfacher als die bekannten Scannerverfahren ist und für jedes Material geeignet ist und das eine erhöhte Maßgenauigkeit aufweist.It is therefore an object of the invention specified in claim 1, a method for the production of tooth parts made of ceramic or metal based on Specify scanner technology that much easier than the known Scanner method is and for Any material is suitable and has an increased dimensional accuracy.
Vorteilhafte Ausführungen der Erfindung sind in den abhängigen Ansprüchen 1 bis 10 beschrieben.advantageous versions of the invention are in the dependent claims 1 to 10 described.
Es zeigen:It demonstrate:
In
Auf
einem Tisch
Über dem
Tisch
Ein
weiterer Vorteil ließe
sich dadurch erzielen, dass das Zuführorgan
Der
Tisch
Wie
insbesondere in
Bei
einem herkömmlichen
Schlicker wird eine Spannung von etwa 40 V angelegt, die zu einem Strom
bis etwa 100 mA führt.
Hierbei tritt ein elektrophoretischer Effekt auf, womit ein Niederschlag
des Feststoffes direkt unterhalb der Nadel
Am Ende des Niederschlagverfahrens hat der Rohling eine ausreichende Festigkeit, um nach den bekannten Verfahren gesintert und eventuell glasinfiltriert zu werden.At the End of the precipitation process, the blank has a sufficient Strength to sintered by the known methods and possibly glass-infiltrated to become.
Das
erfindungsgemäße Verfahren
eignet sich auch dazu, Dentin- oder Schneidmaterial auf ein Gerüst aufzutragen.
Zu diesem Zweck muss das Gerüst
lediglich mit den Ausnehmungen für
die Zahnstümpfe
nach unten auf dem Tisch
Die
gezeigte Vorrichtung weist ferner noch eine Fräse
Mit der Erfindung wird folglich ein elektrophoretisches Freiformverfahren bereitgestellt, das allen Anforderungen genügt.With The invention thus relates to an electrophoretic free-form process provided that meets all requirements.
Claims (12)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006013658A DE102006013658B4 (en) | 2006-03-24 | 2006-03-24 | Process for the production of tooth parts by electrophoretic free-forming |
DE102006056303A DE102006056303A1 (en) | 2006-03-24 | 2006-11-29 | Electrophoretic free forming process for forming metal and ceramic parts useful in dental technology enables all formed parts known in dental technology to be produced on one machine |
US12/086,235 US20090255813A1 (en) | 2006-03-24 | 2007-01-25 | Process for Producing Articles From Ceramic or Metal by Electrophoretic Free Forming |
PCT/DE2007/000125 WO2007110010A1 (en) | 2006-03-24 | 2007-01-25 | Process for producing articles from ceramic or metal by electrophoretic free forming |
JP2009500692A JP2009529989A (en) | 2006-03-24 | 2007-01-25 | Method for producing a free-form product using electrophoresis from ceramic or metal |
EP07721859A EP2032741A1 (en) | 2006-03-24 | 2007-01-25 | Process for producing articles from ceramic or metal by electrophoretic free forming |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102006013658A DE102006013658B4 (en) | 2006-03-24 | 2006-03-24 | Process for the production of tooth parts by electrophoretic free-forming |
Publications (2)
Publication Number | Publication Date |
---|---|
DE102006013658A1 true DE102006013658A1 (en) | 2007-10-04 |
DE102006013658B4 DE102006013658B4 (en) | 2008-01-31 |
Family
ID=38460049
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006013658A Expired - Fee Related DE102006013658B4 (en) | 2006-03-24 | 2006-03-24 | Process for the production of tooth parts by electrophoretic free-forming |
DE102006056303A Withdrawn DE102006056303A1 (en) | 2006-03-24 | 2006-11-29 | Electrophoretic free forming process for forming metal and ceramic parts useful in dental technology enables all formed parts known in dental technology to be produced on one machine |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102006056303A Withdrawn DE102006056303A1 (en) | 2006-03-24 | 2006-11-29 | Electrophoretic free forming process for forming metal and ceramic parts useful in dental technology enables all formed parts known in dental technology to be produced on one machine |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090255813A1 (en) |
EP (1) | EP2032741A1 (en) |
JP (1) | JP2009529989A (en) |
DE (2) | DE102006013658B4 (en) |
WO (1) | WO2007110010A1 (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2009153361A1 (en) | 2008-06-19 | 2009-12-23 | Fundacion Cidetec | Method for electrochemically covering an insulating substrate |
DE102011106950A1 (en) * | 2011-07-08 | 2013-01-10 | Wdt-Wolz-Dental-Technik Gmbh | Process for producing a metallic body from at least two optically different metals |
DE102012205064B4 (en) * | 2012-03-29 | 2017-08-31 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | dentures |
FR3008717A1 (en) * | 2013-07-17 | 2015-01-23 | Francois Forgues | DEVICE FOR THE ADDITIVE SYNTHESIS OF METAL OBJECTS IN 3 DIMENSIONS |
US9975169B2 (en) | 2013-10-04 | 2018-05-22 | United Technologies Corporation | Additive manufactured fuel nozzle core for a gas turbine engine |
DE102015206332A1 (en) * | 2015-04-09 | 2016-10-13 | Siemens Aktiengesellschaft | Process for the preparation of a corrosion protection layer for thermal insulation layers of hollow aluminum oxide spheres and outermost glass layer and component |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816546C1 (en) * | 1998-04-15 | 1999-08-19 | Wolz | Method of producing entirely ceramic inlays, crowns, bridges, partial bridges and frames for dental implants or superstructures |
DE19841075C2 (en) * | 1998-09-09 | 2000-06-21 | Stefan Wolz | Process for the manufacture of a framework for inlays, crowns and bridges in dental technology |
DE10115820A1 (en) * | 2001-03-26 | 2002-10-17 | Wieland Dental & Technik Gmbh | Process for the production of all-ceramic dental molded parts |
US20030222366A1 (en) * | 2001-12-21 | 2003-12-04 | Ivan Stangel | Production of dental restorations and other custom objects by free-form fabrication methods and systems therefor |
DE10114290B4 (en) * | 2001-03-23 | 2004-08-12 | Ivoclar Vivadent Ag | Desktop process for manufacturing dental products using 3D plotting |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3997418A (en) * | 1972-11-09 | 1976-12-14 | Aluminum Company Of America | Electrophoretic coating |
DE2705770B2 (en) * | 1977-02-11 | 1980-03-06 | Bego Bremer Goldschlaegerei Wilh. Herbst, 2800 Bremen | Method and device for applying a base material layer to a metallic base molding in dental technology |
DE3109755C2 (en) * | 1981-03-13 | 1986-08-07 | Inoue-Japax Research Inc., Yokohama, Kanagawa | Method and device for electrodeposition |
SE470346B (en) * | 1992-06-23 | 1994-01-31 | Sandvik Ab | Method for making ceramic artificial tooth restorations |
US6059949A (en) * | 1997-04-23 | 2000-05-09 | Cerel (Ceramic Technologies) Ltd. | Method of electrophoretic deposition of ceramic bodies for use in manufacturing dental appliances |
US6221230B1 (en) * | 1997-05-15 | 2001-04-24 | Hiromitsu Takeuchi | Plating method and apparatus |
DE19855268B4 (en) * | 1998-12-01 | 2005-01-20 | Claho Engineering Gmbh | Method and device for producing a three-dimensional metallic component |
DE10021437C2 (en) * | 2000-05-03 | 2002-05-08 | Stefan Wolz | Process for the production of all-ceramic frameworks, in particular from alumina, in dental technology |
DE10127144B4 (en) * | 2001-06-02 | 2004-08-12 | Stefan Wolz | Process for the production of all-ceramic frameworks, especially from alumina or zirconia, in dental technology |
WO2004041113A1 (en) * | 2002-11-05 | 2004-05-21 | Stefan Wolz | Method for producing fully ceramic tooth elements having a pre-determined spatial form by means of electrophoresis |
DE10339603B4 (en) * | 2003-08-28 | 2006-08-10 | Stefan Wolz | Process for coating dental substrates by electrophoresis |
DE102005052113A1 (en) * | 2005-06-03 | 2006-12-28 | Stefan Wolz | Process for the production of dental parts from dental metal powder |
DE102006010808B4 (en) * | 2006-03-07 | 2009-08-13 | BEGO Bremer Goldschlägerei Wilh. Herbst GmbH & Co. KG | Apparatus, system, method, computer program and data carrier for electrophoretic deposition with a movable electrode |
-
2006
- 2006-03-24 DE DE102006013658A patent/DE102006013658B4/en not_active Expired - Fee Related
- 2006-11-29 DE DE102006056303A patent/DE102006056303A1/en not_active Withdrawn
-
2007
- 2007-01-25 JP JP2009500692A patent/JP2009529989A/en active Pending
- 2007-01-25 EP EP07721859A patent/EP2032741A1/en not_active Withdrawn
- 2007-01-25 US US12/086,235 patent/US20090255813A1/en not_active Abandoned
- 2007-01-25 WO PCT/DE2007/000125 patent/WO2007110010A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19816546C1 (en) * | 1998-04-15 | 1999-08-19 | Wolz | Method of producing entirely ceramic inlays, crowns, bridges, partial bridges and frames for dental implants or superstructures |
DE19841075C2 (en) * | 1998-09-09 | 2000-06-21 | Stefan Wolz | Process for the manufacture of a framework for inlays, crowns and bridges in dental technology |
DE10114290B4 (en) * | 2001-03-23 | 2004-08-12 | Ivoclar Vivadent Ag | Desktop process for manufacturing dental products using 3D plotting |
DE10115820A1 (en) * | 2001-03-26 | 2002-10-17 | Wieland Dental & Technik Gmbh | Process for the production of all-ceramic dental molded parts |
US20030222366A1 (en) * | 2001-12-21 | 2003-12-04 | Ivan Stangel | Production of dental restorations and other custom objects by free-form fabrication methods and systems therefor |
Also Published As
Publication number | Publication date |
---|---|
US20090255813A1 (en) | 2009-10-15 |
EP2032741A1 (en) | 2009-03-11 |
DE102006056303A1 (en) | 2008-06-05 |
JP2009529989A (en) | 2009-08-27 |
WO2007110010A1 (en) | 2007-10-04 |
DE102006013658B4 (en) | 2008-01-31 |
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Legal Events
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OP8 | Request for examination as to paragraph 44 patent law | ||
8122 | Nonbinding interest in granting licences declared | ||
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |