WO2010057584A1 - Milling block for producing partial or total prostheses according to the cad/cam method - Google Patents
Milling block for producing partial or total prostheses according to the cad/cam method Download PDFInfo
- Publication number
- WO2010057584A1 WO2010057584A1 PCT/EP2009/007983 EP2009007983W WO2010057584A1 WO 2010057584 A1 WO2010057584 A1 WO 2010057584A1 EP 2009007983 W EP2009007983 W EP 2009007983W WO 2010057584 A1 WO2010057584 A1 WO 2010057584A1
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- WO
- WIPO (PCT)
- Prior art keywords
- milling block
- block according
- tooth
- milling
- component
- 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.)
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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
- A61C13/0004—Computer-assisted sizing or machining of dental prostheses
-
- 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
- A61C13/0022—Blanks or green, unfinished dental restoration parts
Definitions
- Milling block for the production of partial or full dentures according to the CAD / CAM method
- the invention relates to embodiments of a milling block for the production of partial or full dentures according to the CAD / CAM method and its use in a CAD / CAM method.
- Full dentures are usually manufactured in the following way:
- BESTATIGUNGSKOPIE DE202006006286U1 describes blanks for producing crowns or a denture base.
- the embodiment intended for crown production is made of PMMA or composite material and may be multicolored, preferably bicoloured, in order to give the appearance of the later crown a natural color gradient.
- the embodiment for producing a prosthesis base may be colored in a flesh color.
- blanks which have different colored layers, of which a gum color or pink is always colored.
- the blanks are preferably manufactured in one piece.
- a lowermost first layer of the gingiva PMMA milling block (“base plate"), a second layer (neck mass) of low transparency and high chroma, a third layer (dentin mass) of slightly higher transparency and reduced chroma associated with the second layer, and a second layer fourth layer (cutting material) bonded to the third layer with high transparency and even reduced chroma.
- the neck, dentin and cutting compositions may also consist of PMMA, but preferred for improving the abrasion stability are masses of highly filled composites provided with inorganic fillers.
- reinforcing elements e.g. made of metal, embedded.
- the base plate is made from a cold-curing pink PMMA-based prosthesis material (PalaXpress from Heraeus Kulzer) by mixing powder and liquid and pouring the ready-to-use mass into a slightly conically shaped steel mold with a diameter of approximately 120 mm. The curing takes place in the pressure pot at slightly elevated temperature under increased pressure to avoid bubbles.
- the layer thickness of the base plate is approx. 15 mm.
- Signum MD2 For the neck there is a Signum MD2, for the dentin a Venus Flow A2 and for the cutting edge a Signum matrix OT5 (in each case company Heraeus Kulzer). Each layer is in each case a few millimeters thick and is cured in each case for 90 sec. With the laboratory light device Heraflash. Contamination of the surface before applying the next layer must be avoided at all costs. The final charge is made by an exposure of 180 sec.
- the milling block can then be removed from the steel mold and is available for the production of the complete denture.
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- 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)
Abstract
Description
Fräsblock zur Herstellung von Teil- oder Totalprothesen nach dem CAD/CAM-Verfahren Milling block for the production of partial or full dentures according to the CAD / CAM method
Die Erfindung betrifft Ausgestaltungen eines Fräsblocks zur Herstellung von Teil- oder Totalprothesen nach dem CAD/CAM-Verfahren und dessen Verwendung in einem CAD/CAM- Verfahren.The invention relates to embodiments of a milling block for the production of partial or full dentures according to the CAD / CAM method and its use in a CAD / CAM method.
Hintergrund:Background:
Totalprothesen werden üblicherweise auf folgendem Weg hergestellt:Full dentures are usually manufactured in the following way:
> Silikonabformung des unbezahnten Patientenkiefers,> Silicone impression of the edentulous patient's jaw,
> Herstellung eines Gipsmodells,> Production of a plaster model,
> Aufstellung der künstlichen Zahnreihe auf dem Gipsmodell unter Zuhilfenahme einer Wachsplatte,> Setting up the artificial row of teeth on the plaster model with the help of a wax plate,
> Einprobe beim Patienten, ggf. Nachkorrektur,> Try-in with the patient, if necessary after-correction,
> Einbettung der künstlichen Zähne, der Wachsmodellation und eines Teils des Gipsmodells in Gips,> Embedding of the artificial teeth, wax modeling and part of the plaster model in plaster,
> Ausschmelzen des Wachses,> Melting the wax,
> Ausfüllen des entstandenen Hohlraumes mit einem PMMA-basierten Prothesenwerkstoff,> Filling the resulting cavity with a PMMA-based denture material,
> Entfernen der Gipseinbettung,> Removing the plaster embedding,
> Reinigung und Oberflächenpolitur.> Cleaning and surface polish.
Dieses Verfahren führt in der Regel zu sehr guten Resultaten, ist jedoch sehr zeit- und arbeitsaufwendig. So beträgt der Zeitaufwand für die Herstellung einer Ober- und Unterkiefer- Totalprothese ca. 8 h.This procedure usually gives very good results, but is very time consuming and labor intensive. Thus, the time required to produce a maxillary and maxillary prosthesis is about 8 hours.
Durch die CAD/CAM-Technologie in Kombination mit vorgelagerten digitalen bildgebenden sowie Zahnaufstell-Verfahren ergeben sich völlig neuartige Perspektiven zur rationellen Herstellung einer kostengünstigen Totalprothese.The CAD / CAM technology in combination with upstream digital imaging and tooth set-up procedures opens up completely new perspectives for the rational production of a cost-effective complete denture.
BESTATIGUNGSKOPIE DE202006006286U1 beschreibt Rohlinge zur Herstellung von Kronen oder einer Prothesenbasis. Die Ausführungsform, die zur Kronenherstellung vorgesehen ist, ist aus PMMA oder Kompositmaterial und kann mehrfarbig, vorzugsweise zweifarbig, eingefärbt sein, um dem Erscheinungsbild der späteren Krone einen natürlichen Farbverlauf zu verleihen. Die Ausführungsform zur Herstellung einer Prothesenbasis kann fleischfarben eingefärbt sein.BESTATIGUNGSKOPIE DE202006006286U1 describes blanks for producing crowns or a denture base. The embodiment intended for crown production is made of PMMA or composite material and may be multicolored, preferably bicoloured, in order to give the appearance of the later crown a natural color gradient. The embodiment for producing a prosthesis base may be colored in a flesh color.
Die ErfindungThe invention
Erfindungsgemäß werden Rohlinge vorgeschlagen, die verschieden eingefärbte Schichten aufweisen, von denen stets eine zahnfleischfarben bzw. rosa eingefärbt ist.According to the invention blanks are proposed which have different colored layers, of which a gum color or pink is always colored.
Die Rohlinge werden vorzugsweise einstückig gefertigt.The blanks are preferably manufactured in one piece.
Das eröffnet die Möglichkeit, Oberkiefer oder Unterkiefer-Totalprothesen aus einem einzigen Rohling zu fertigen.This opens up the possibility of manufacturing maxillary or mandibular complete dentures from a single blank.
Bevorzugte AusführunqsformenPreferred embodiments
In einer bevorzugten Ausführungsform sind vorpolymerisierte Fräsblöcke mit vier Schichten zur Herstellung von Totalprothesen vorgesehen:In a preferred embodiment prepolymerized milling blocks with four layers are provided for the production of full dentures:
Eine unterste erste Schicht des Fräsblocks („Basisplatte") aus gingivafarbenem PMMA, eine damit verbundene zweite Schicht (Halsmasse) mit geringer Transparenz und hohem Chroma, eine mit der zweiten Schicht verbundene dritte Schicht (Dentinmasse) mit etwas höherer Transparenz und verringertem Chroma sowie eine mit der dritten Schicht verbundene vierte Schicht (Schneidemasse) mit hoher Transparenz und nochmals verringertem Chroma.A lowermost first layer of the gingiva PMMA milling block ("base plate"), a second layer (neck mass) of low transparency and high chroma, a third layer (dentin mass) of slightly higher transparency and reduced chroma associated with the second layer, and a second layer fourth layer (cutting material) bonded to the third layer with high transparency and even reduced chroma.
Die Hals-, Dentin- und Schneidemassen können auch aus PMMA bestehen, bevorzugt zur Verbesserung der Abrasionsstabilität sind jedoch Massen aus mit anorganischen Füllstoffen versehenen hochgefüllten Kompositen.The neck, dentin and cutting compositions may also consist of PMMA, but preferred for improving the abrasion stability are masses of highly filled composites provided with inorganic fillers.
Zur Verbesserung der mechanischen Stabilität, insbesondere zur Herstellung von Teilprothesen, können in die erste Schicht (Grundplatte) auch Verstärkungselemente, z.B. aus Metall, eingebettet werden.To improve the mechanical stability, in particular for the production of partial dentures, reinforcing elements, e.g. made of metal, embedded.
Zur Vermeidung von allergischen Reaktionen können anstatt PMMA oder anderen (meth-)acrylatbasierten Werkstoffen auch Polyamid oder sogenannte Sonderkunststoffe wie Polyacetal oder Polyoxymethylen etc., deren allergisches Potential deutlich verringert ist, verwendet werden. Das folgende Beispiel zeigt eine Ausführungsform der Erfindung.To avoid allergic reactions, instead of PMMA or other (meth) acrylate-based materials, polyamide or so-called special plastics such as polyacetal or polyoxymethylene etc., whose allergic potential is markedly reduced, can also be used. The following example shows an embodiment of the invention.
Ausführunαsbeispiel:Ausführunαsbeispiel:
Die Grundplatte wird aus einem kalthärtenden rosafarbenen Prothesenwerkstoff auf PMMA- Basis (PalaXpress der Firma Heraeus Kulzer) durch Anrühren von Pulver und Flüssigkeit und Gießen der gebrauchsfertigen Masse in eine leicht konisch geformte Stahlform von ca. 120 mm Innendurchmesser hergestellt. Das Aushärten vollzieht sich im Drucktopf bei leicht erhöhter Temperatur unter erhöhtem Druck zur Vermeidung von Blasen. Die Schichtdicke der Grundplatte beträgt ca. 15 mm.The base plate is made from a cold-curing pink PMMA-based prosthesis material (PalaXpress from Heraeus Kulzer) by mixing powder and liquid and pouring the ready-to-use mass into a slightly conically shaped steel mold with a diameter of approximately 120 mm. The curing takes place in the pressure pot at slightly elevated temperature under increased pressure to avoid bubbles. The layer thickness of the base plate is approx. 15 mm.
Soll für die nachfolgenden Schichten ein Komposit aufgebracht werden, werden anschließend fließfähige Kompositmassen verwendet. Solche Komposite sind dem Fachmann geläufig und in zahlreichen Varianten im Handel erhältlich.If a composite is to be applied for the subsequent layers, then flowable composite materials are used. Such composites are familiar to those skilled in the art and commercially available in numerous variants.
Hierbei kommt für den Hals eine Signum MD2, für das Dentin ein Venus Flow A2 und für die Schneide ein Signum matrix OT5 zur Anwendung (jeweils Firma Heraeus Kulzer). Jede Schicht ist dabei jeweils einige Millimeter dick und wird jeweils für 90 sec. mit dem Laborlichtgerät Heraflash zwischengehärtet. Eine Kontamination der Oberfläche vor dem Auftragen der nächsten Schicht ist unbedingt zu vermeiden. Die Endvergütung erfolgt durch eine Belichtung von 180 sec.For the neck there is a Signum MD2, for the dentin a Venus Flow A2 and for the cutting edge a Signum matrix OT5 (in each case company Heraeus Kulzer). Each layer is in each case a few millimeters thick and is cured in each case for 90 sec. With the laboratory light device Heraflash. Contamination of the surface before applying the next layer must be avoided at all costs. The final charge is made by an exposure of 180 sec.
Der Fräsblock kann anschließend der Stahlform entnommen werden und steht für die Herstellung der Totalprothese zur Verfügung. The milling block can then be removed from the steel mold and is available for the production of the complete denture.
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008058092 | 2008-11-18 | ||
| DE102008058092.9 | 2008-11-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2010057584A1 true WO2010057584A1 (en) | 2010-05-27 |
Family
ID=41692876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2009/007983 Ceased WO2010057584A1 (en) | 2008-11-18 | 2009-11-09 | Milling block for producing partial or total prostheses according to the cad/cam method |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2010057584A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013068124A3 (en) * | 2011-11-11 | 2013-10-03 | Merz Dental Gmbh | Milling block, method for producing partial or total prostheses, and complete milling block system |
| DE102014102344A1 (en) * | 2014-02-24 | 2015-08-27 | Ludwig Prücklmaier | Process for the preparation of a complete dental prosthesis |
| EP3064170A1 (en) * | 2015-03-04 | 2016-09-07 | Ivoclar Vivadent AG | Dental prosthesis |
| US10898302B2 (en) | 2016-04-25 | 2021-01-26 | 3M Innovative Properties Company | Multi-layered zirconia dental mill blank and process of production |
| US11559380B2 (en) * | 2018-07-16 | 2023-01-24 | Ivoclar Vivadent Ag | Dental prosthesis blank |
| WO2023017075A1 (en) | 2021-08-10 | 2023-02-16 | Ivoclar Vivadent Ag | Multicolor zirconium oxide blank for dental prostheses |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025728A1 (en) * | 1990-08-14 | 1992-02-20 | Wolfgang Becker | Forming total dental prosthesis |
| EP0807422A1 (en) * | 1996-05-17 | 1997-11-19 | Brandestini, Marco, Dr. | Method for manufacturing dental reconstructions and blank for carrying out the method |
| WO2002009612A1 (en) * | 2000-07-31 | 2002-02-07 | O'brien Dental Lab, Inc. | Millable blocks for making dental prostheses, associated dental prostheses and methods of making |
| EP1832245A1 (en) * | 2006-03-08 | 2007-09-12 | Dentales Service Zentrum GmbH & Co. KG | Manufacture of dental prostheses |
| WO2009026943A1 (en) * | 2007-08-27 | 2009-03-05 | Dentales Service Zentrum Gmbh & Co. Kg | Production of a dental prosthesis |
-
2009
- 2009-11-09 WO PCT/EP2009/007983 patent/WO2010057584A1/en not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4025728A1 (en) * | 1990-08-14 | 1992-02-20 | Wolfgang Becker | Forming total dental prosthesis |
| EP0807422A1 (en) * | 1996-05-17 | 1997-11-19 | Brandestini, Marco, Dr. | Method for manufacturing dental reconstructions and blank for carrying out the method |
| WO2002009612A1 (en) * | 2000-07-31 | 2002-02-07 | O'brien Dental Lab, Inc. | Millable blocks for making dental prostheses, associated dental prostheses and methods of making |
| EP1832245A1 (en) * | 2006-03-08 | 2007-09-12 | Dentales Service Zentrum GmbH & Co. KG | Manufacture of dental prostheses |
| WO2009026943A1 (en) * | 2007-08-27 | 2009-03-05 | Dentales Service Zentrum Gmbh & Co. Kg | Production of a dental prosthesis |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10779916B2 (en) | 2011-11-11 | 2020-09-22 | Merz Dental Gmbh | Milling block, method for producing partial or total prostheses, and complete milling block system |
| EP4233785A3 (en) * | 2011-11-11 | 2023-09-20 | Merz Dental GmbH | Method for the preparation of partial or total prostheses |
| US11395722B2 (en) | 2011-11-11 | 2022-07-26 | Merz Dental Gmbh | Partial or total prosthesis |
| RU2618915C2 (en) * | 2011-11-11 | 2017-05-11 | Мерц Дентал Гмбх | Milling blank, method for production of partial or full dentures, as well as milling blanks system assembly |
| EP3494922A3 (en) * | 2011-11-11 | 2019-08-21 | Merz Dental GmbH | Method for the preparation of partial or total prostheses |
| WO2013068124A3 (en) * | 2011-11-11 | 2013-10-03 | Merz Dental Gmbh | Milling block, method for producing partial or total prostheses, and complete milling block system |
| DE102014102344A1 (en) * | 2014-02-24 | 2015-08-27 | Ludwig Prücklmaier | Process for the preparation of a complete dental prosthesis |
| US10646311B2 (en) | 2015-03-04 | 2020-05-12 | Ivoclar Vivadent Ag | Dental prosthesis |
| US11701207B2 (en) | 2015-03-04 | 2023-07-18 | Ivoclar Vivadent Ag | Method of producing a dental prosthesis |
| JP2021045577A (en) * | 2015-03-04 | 2021-03-25 | イボクラール ビバデント アクチェンゲゼルシャフト | Dental prosthesis |
| JP6990492B2 (en) | 2015-03-04 | 2022-01-12 | イボクラール ビバデント アクチェンゲゼルシャフト | Dental prosthesis material |
| WO2016139184A1 (en) * | 2015-03-04 | 2016-09-09 | Ivoclar Vivadent Ag | Dental prosthesis |
| US12138134B2 (en) | 2015-03-04 | 2024-11-12 | Ivoclar Vivadent Ag | Blank for producing a dental prosthesis |
| EP3064170A1 (en) * | 2015-03-04 | 2016-09-07 | Ivoclar Vivadent AG | Dental prosthesis |
| US10898302B2 (en) | 2016-04-25 | 2021-01-26 | 3M Innovative Properties Company | Multi-layered zirconia dental mill blank and process of production |
| US11559380B2 (en) * | 2018-07-16 | 2023-01-24 | Ivoclar Vivadent Ag | Dental prosthesis blank |
| US12150824B2 (en) | 2018-07-16 | 2024-11-26 | Ivoclar Vivadent Ag | System for the manufacture of a dental prosthesis |
| WO2023017075A1 (en) | 2021-08-10 | 2023-02-16 | Ivoclar Vivadent Ag | Multicolor zirconium oxide blank for dental prostheses |
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