[go: up one dir, main page]

WO1998003128A1 - Procede de production d'un element de prothese dentaire - Google Patents

Procede de production d'un element de prothese dentaire Download PDF

Info

Publication number
WO1998003128A1
WO1998003128A1 PCT/EP1997/003820 EP9703820W WO9803128A1 WO 1998003128 A1 WO1998003128 A1 WO 1998003128A1 EP 9703820 W EP9703820 W EP 9703820W WO 9803128 A1 WO9803128 A1 WO 9803128A1
Authority
WO
WIPO (PCT)
Prior art keywords
dental
crown
crown core
plastic
tooth stump
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.)
Ceased
Application number
PCT/EP1997/003820
Other languages
German (de)
English (en)
Inventor
Wulf BRÄMER
Rolf Eykmann
Helmut Grigereit
Dieter SCHÖDEL
Martin Schuster
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.)
Kulzer GmbH
Original Assignee
Heraeus Kulzer 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 Heraeus Kulzer GmbH filed Critical Heraeus Kulzer GmbH
Publication of WO1998003128A1 publication Critical patent/WO1998003128A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/70—Tooth crowns; Making thereof
    • A61C5/77—Methods or devices for making crowns
    • 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
    • A61K6/802—Preparations for artificial teeth, for filling teeth or for capping teeth comprising ceramics
    • 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
    • A61K6/884—Preparations for artificial teeth, for filling teeth or for capping teeth comprising natural or synthetic resins
    • A61K6/887—Compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds

Definitions

  • the invention relates to a method for producing a dental prosthetic item, in which the dental prosthetic item is modeled on a tooth stump model, a crown core being at least partially veneered on the outside with a dental plastic or a dental ceramic.
  • the invention further relates to a crown core for performing the method
  • a dental cap (crown core) is disclosed, which is formed from a flat and slotted precious metal foil on the sides.
  • the precious metal foil is closely matched to the tooth stump model so that it rests on the surfaces thereof.
  • a fusion of the overlapping surfaces of the precious metal foil is then carried out in order to achieve a closed dental cap.
  • This dental cap is then veneered with ceramic or plastic.
  • very precise work is required. Merging the parts of the film which overlap during the shaping to form a dental crown of uniform thickness requires a great deal of effort and requires a certain experience of the dental technician involved. In a large number of applications, the heat required for the fusion leads to a distortion of the shape, so that it then no longer lies in a form-fitting manner on the tooth stump
  • EP 0 252 412 A2 A similar method is known from DE 39 11 966 A1. Such a method is also known from EP 0 252 412 A2.
  • a dental sleeve (crown core) is placed as a sleeve around a stump and the outer surface by spot welding the ends of the film closed. Spot welding results in local and therefore one-sided heating of the dental sleeve, which usually leads to a delay in heat.
  • EP 442 150 A2 also discloses the use of metal foils as a carrier material for tooth restoration.
  • Another method for producing dental prosthetic items using metallic dental caps is the so-called Heratec method, in which a sintering technique is used to produce the dental cap. Precious metal paste is applied in layers on a refractory stump and then sintered. The cap is then veneered with ceramic or dental plastic. The process also places special demands on the model stump (fire resistance). It leads to stable dental crowns, but requires quite a lot of effort due to the application technique.
  • the task is also to specify a crown core suitable for carrying out the method.
  • the object for the method is achieved in that a crown core, the internal dimensions of which are larger than the dimensions of the tooth stump model or the tooth stump, is filled with a dental plastic, the filling volume being greater than the volume between the crown core and tooth stump model after the crown core has been placed on it on the tooth stump model, that the crown core is then pressed onto the tooth stump model and that the dental plastic is then hardened.
  • the process enables the production of crowns and bridges.
  • the adaptation to the tooth stump does not take place through an exact shaping of the crown core, but rather through the plastic located in the crown core. This makes it possible to use prefabricated, assembled crown cores.
  • Crown cores of this type can easily be produced, for example, by deep-drawing processes and made available in different sizes, so that the dental technician can select a prefabricated crown core according to the dimensions of the tooth stump.
  • the desired shape of the tooth replacement part can also be taken into account when selecting the crown core. It is of course also possible to make a crown core individually. Since the crown core is expediently formed from a metal foil, it is flexible and can also be deformed by a dental technician if required to compensate for any existing too large deviation from the required shape.
  • An exact shape of the inside of the tooth replacement part which guarantees an exact fit on the tooth stump, is achieved by a dental plastic, which only has to be filled into the crown core in such an amount that it fills the space between the crown core and the tooth stump model.
  • the excess plastic swells out of the gap when the crown core is pressed onto the tooth stump model on the lower edge of the crown core and can be removed there.
  • Such shaping is possible without great effort and without temperature treatment at high temperatures, since the plastic is present, for example, as a paste and can therefore be processed very easily.
  • the crown core is expediently provided with an adhesion promoter on its surface before the dental plastic is applied, in particular by means of acrylation, silicatization or silanization. This ensures a firm contact between the crown core and the dental plastic or dental ceramic.
  • a dental plastic to the tooth stump model before pressing the crown core onto it, for example to increase the strength of the resulting bond or to facilitate further processing when the crown core is fully veneered.
  • This dental plastic applied to the tooth stump model can be hardened or left soft before pressing. It is also possible to apply a close-fitting plastic film to the tooth stump model before pressing the crown core in order to create a defined gap (placeholder) between the tooth stump and the crown core, which is then filled with cement or dental adhesive to secure the crown core.
  • the tooth stump model is treated with an insulating agent before the crown core is pressed on, in order to make it easier to remove the tooth replacement part.
  • a chemically curing, light-curing or heat-curing dental plastic to fill the crown core. It has proven to be useful that the crown core is completely veneered on the outside. This is not only possible with the usual dental ceramics, but also with dental plastics known for example under the names Charisma and Artglass. It is expedient that the same dental plastic is used to fill and veneer the crown core. It has proven to be advantageous that the crown core is completely surrounded by the dental plastic. This is easy to implement because part of the dental plastic used for the filling emerges from the lower edge of the crown core and can easily be integrally bonded here with the dental plastic used to veneer the crown core.
  • this has the optical advantage that the material (metal) is no longer visible after completion of the dental prosthesis part, on the other hand, the metal no longer comes into contact with the patient, since it is completely enclosed. This enables the use of a wide range of metals that are not suitable for use in direct contact with the patient.
  • crown cores can be connected to one another to produce larger dental prostheses (bridges). It is possible to connect two crown cores directly (e.g. welding, gluing, laser welding, chemical bonding) to form two adjacent teeth. It is also possible to connect two crown cores to one another by means of a connecting part, for example a bridge, in order to bridge a missing tooth (pontic). A tooth made of dental plastic or dental ceramic can be modeled on the connecting part in order to close the gap. The metal of the crown core can be very easily brought into the necessary shape for the production of such larger tooth replacement parts.
  • a connection of several crown cores by welding is possible before placing on the tooth stump model, so that a heat-related warping of the metal does not affect the shape of the finished tooth replacement part, since the final shaping takes place through the dental plastic used.
  • any other suitable dental plastic can be used as the veneering material.
  • light-curing plastics can also be used. With the method according to the invention, the shrinkage of the plastic is kept very low and a high accuracy of fit is ensured.
  • the object is achieved for a crown core in that its internal dimensions are larger than the corresponding dimensions of the tooth stump and / or the tooth stump model on or on which the crown core is to be placed. Larger dimensions mean that the resulting space between the crown cap and the tooth stump or tooth stump model is sufficient to accommodate dental plastic in significant quantities.
  • the gap should therefore be at least a few tenths of a millimeter on average.
  • Fig. 2 shows a tooth with a crown core according to the invention
  • Fig. 3 shows the shape of a crown core on the tooth stump model with plastic film.
  • a metal cap which is manufactured to a precise fit on a tooth stump model 8, is attached to a tooth stump 1 as a crown core 2 by means of a cement 3.
  • the cement 3 is usually a phosphate cement.
  • the crown core 2 is surrounded on the outside with dental plastic or dental ceramic as veneer material 4.
  • the desired tooth shape is formed from the veneer material 4.
  • a crown core 2 produced in a deep-drawing process from a precious metal foil or from dental plastics is conditioned on its inside and on its outside, for example by silicating.
  • the silication acts as an adhesion promoter between the metal and a dental plastic to be applied to the crown core.
  • Another method is the activation of the plastic surface by means of appropriate chemicals (e.g. known from DE 42 33 886), ceramic or metallic coatings or by roughening the surface or by introducing retentions into the metal surface.
  • a layer of an opaque can be applied to the adhesion promoter before the veneering material 4 is applied. Both layers are very thin and therefore not shown in the drawing.
  • the size of the crown core 2 was selected so that its interior is somewhat larger (approximately 0.2-1 mm on average) than the tooth stump 1 on which the finished tooth replacement part is to be placed (FIG. 2) or as the corresponding tooth stump model 8 , which was made from a dental plaster.
  • dental plastic or dental ceramic can also be used as the material of the crown core 2.
  • the crown core 2 can also be cast, sintered, injection molded or milled as a solid part.
  • the contours of the dental plastic 5 remaining in the space between the tooth stump model 8 and the crown core 2 correspond exactly to the contours of the tooth stump 1 on which the finished tooth replacement part is to be placed after it has hardened.
  • This layer can either be hardened before pressing or left soft.
  • the filled crown core 2 is pressed on, it combines with the plastic contained therein to form a uniform layer.
  • a plastic film 7 can be applied to the tooth stump model 8 before the crown core 2 is pressed on. This is done in order to obtain a defined gap for the cement 3.
  • the crown core 2 is also veneered on its outer surface, the desired tooth shape being modeled.
  • a suitable dental plastic for example the material known under the name "Artglass”, is used as the veneering material 4.
  • the crown core 2 is veneered with the plastic in such a way that the veneer 4 is led beyond the lower edge of the crown core 2, where the veneer material 4 with the dental plastic swelling out of the resulting gap 6 during the pressing of the crown core 2 onto the tooth stump model 8 5 connects.
  • An adhesion promoter can also be applied to the dental cap according to the method known from DE 4441 123 (acrylating the surface), or by silicating.
  • a large number of other dental materials such as are also known from EP 486 775, for example, are suitable for veneering.
  • the finished tooth replacement part is adhesively bonded to the tooth stump 1 with a crown cement 3.
  • a plurality of crown cores 2 are connected to one another, wherein in the case of a prosthesis part which comprises more than two teeth, the crown cores 2 are connected by a connecting part which is modeled as one or more teeth.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Dentistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Dental Prosthetics (AREA)

Abstract

L'invention concerne un procédé de production d'un élément de prothèse dentaire, selon lequel l'élément de prothèse dentaire est modélisé sur un modèle unitaire (8), et la face extérieure de la coiffe (2) reçoit partiellement une facette prothétique en matière plastique dentaire ou en céramique dentaire (4). L'invention vise à permettre d'adapter l'élément de prothèse dentaire avec une grande précision et de façon simple, et à éviter un traitement thermique pour la fusion ou le frittage de métaux précieux pendant le façonnage de l'élément de prothèse dentaire. A cet effet, la coiffe, dont les dimensions intérieures sont supérieures aux dimensions du modèle unitaire, est remplie de matière plastique dentaire (5), le volume de remplissage étant supérieur au volume compris entre la coiffe et le modèle unitaire après positionnement de la coiffe sur ledit modèle. Ensuite, la coiffe est pressée sur le modèle et la matière plastique dentaire est durcie.
PCT/EP1997/003820 1996-07-18 1997-07-17 Procede de production d'un element de prothese dentaire Ceased WO1998003128A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19628930.0 1996-07-18
DE19628930A DE19628930C1 (de) 1996-07-18 1996-07-18 Verfahren zur Herstellung eines Zahnersatzteiles

Publications (1)

Publication Number Publication Date
WO1998003128A1 true WO1998003128A1 (fr) 1998-01-29

Family

ID=7800138

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1997/003820 Ceased WO1998003128A1 (fr) 1996-07-18 1997-07-17 Procede de production d'un element de prothese dentaire

Country Status (2)

Country Link
DE (1) DE19628930C1 (fr)
WO (1) WO1998003128A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7648362B2 (en) 2003-10-17 2010-01-19 Ivoclar - Vivedent AG Dental restoration and a method for producing a dental restoration
DE102022133401B3 (de) 2022-12-15 2024-03-28 CERAMIST One GmbH Verfahren zum Herstellen eines Zahnersatzteils, Adapter, Rohling und Set aus Adapter und Rohling, Set aus mehreren Adaptern

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19908977C1 (de) 1999-03-02 2000-05-31 Thomas Prieshoff Künstlicher Zahnersatz
DE10348370C5 (de) * 2003-10-17 2009-05-20 Ivoclar Vivadent Ag Zahnrestaurationsteil
DE102011051594A1 (de) * 2011-07-06 2013-01-10 Smilden Biotechnology Co., Ltd. Hochgradig verbundene dentale Struktur für Zahn-Prothesen und Zahn-Applikationen

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118934A (en) * 1934-06-14 1938-05-31 Madzar Rudolf Artificial tooth
US4398887A (en) * 1980-02-29 1983-08-16 Balde John W Dental crown assembly
DE3604059A1 (de) * 1986-02-08 1987-08-13 Kerstin Koerber Zahnersatzkrone aus mineralischem verbund und ihre herstellung
JPS6476848A (en) * 1987-09-17 1989-03-22 Sankin Ind Co Preparation of ceramic crown
DE3743761A1 (de) * 1987-12-23 1989-07-13 Koerber Karlheinz Verfahren zur modellation von gussobjekten genauer innenpassung und folie zur durchfuehrung dieses verfahrens
DE4116526A1 (de) * 1991-05-21 1992-11-26 Koerber Karlheinz Verfahren zur anfertigung passgenauer modellstuempfe beschliffener zaehne

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL82998A0 (en) * 1986-07-07 1987-12-20 Koller Werner Dental sleeve,its production and its use for producing a ceramic crown
DE8703951U1 (de) * 1987-03-16 1987-05-21 Frank, Michael Dentalkappe zur Verwendung bei der Herstellung von Verbundkronen
CA1330169C (fr) * 1987-05-13 1994-06-14 Asami Tanaka Feuille metallique pour plombages a base de metal et de porcelaine
DE3911966A1 (de) * 1989-04-12 1990-10-18 Kerstin Koerber Lamellen-folienkronenkappe und folienzuschnitt zu ihrer formung
DE59103582D1 (de) * 1990-11-17 1995-01-05 Heraeus Kulzer Gmbh Polymerisierbares Dentalmaterial.
DE4446033C2 (de) * 1994-12-23 1996-11-07 Heraeus Kulzer Gmbh Polymerisierbares Dentalmaterial

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2118934A (en) * 1934-06-14 1938-05-31 Madzar Rudolf Artificial tooth
US4398887A (en) * 1980-02-29 1983-08-16 Balde John W Dental crown assembly
DE3604059A1 (de) * 1986-02-08 1987-08-13 Kerstin Koerber Zahnersatzkrone aus mineralischem verbund und ihre herstellung
JPS6476848A (en) * 1987-09-17 1989-03-22 Sankin Ind Co Preparation of ceramic crown
DE3743761A1 (de) * 1987-12-23 1989-07-13 Koerber Karlheinz Verfahren zur modellation von gussobjekten genauer innenpassung und folie zur durchfuehrung dieses verfahrens
DE4116526A1 (de) * 1991-05-21 1992-11-26 Koerber Karlheinz Verfahren zur anfertigung passgenauer modellstuempfe beschliffener zaehne

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 013, no. 283 (C - 612) 28 June 1989 (1989-06-28) *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7648362B2 (en) 2003-10-17 2010-01-19 Ivoclar - Vivedent AG Dental restoration and a method for producing a dental restoration
DE102022133401B3 (de) 2022-12-15 2024-03-28 CERAMIST One GmbH Verfahren zum Herstellen eines Zahnersatzteils, Adapter, Rohling und Set aus Adapter und Rohling, Set aus mehreren Adaptern
WO2024126460A1 (fr) 2022-12-15 2024-06-20 CERAMIST One GmbH Procédé de fabrication d'une pièce de restauration dentaire, adaptateur, ébauche et ensemble constitué d'un adaptateur et d'une ébauche, ensemble constitué d'une pluralité d'adaptateurs

Also Published As

Publication number Publication date
DE19628930C1 (de) 1997-10-09

Similar Documents

Publication Publication Date Title
EP2945563B1 (fr) Procédé de fabrication d'un élément d'ancrage
DE602004009279T2 (de) Herstellungsverfahren einer zahnärztlichen Vorrichtung mit Spritzguss
DE69128411T2 (de) Orthopädisches Implantat
DE69625289T2 (de) Verfahren zur Herstellung eines gegossenen orthopädischen Implantats
DE10064596A1 (de) Verfahren zum Anbringen eines Markerelements an einem Implantat sowie mit einem Markerelement versehenes Implantat
EP3463178B1 (fr) Procédé de fabrication de prothèse dentaire
DE202004021927U1 (de) System und Anordnung zum Produzieren einer Zahnersatzkomponente und solch eine Komponente
DE102012108153A1 (de) Rohling und Verfahren zur Herstellung einer Dentalrestauration durch substraktive Bearbeitung
DE10348369B4 (de) Zahnrestaurationsteil sowie Verfahren zur Herstellung eines Zahnrestaurationsteils
DE4209569C2 (de) Prothesenbasis
DE19628930C1 (de) Verfahren zur Herstellung eines Zahnersatzteiles
DE3742134C2 (de) Verbundschichtkronen zur Wiederherstellung von Zahnkronen
DE102007043023A1 (de) Verbindungselement für abnehmbare Zahnprothese und Herstellungsverfahren hierfür
EP0563822B1 (fr) Dent artificielle brute produite en série
DE102022134561B4 (de) Verfahren zur Herstellung einer Dentalprothese durch Auffüllen eines Zwischenraums
DE60122683T2 (de) Zahnbrückenanordnung und bindemittel dafür
DE19908977C1 (de) Künstlicher Zahnersatz
EP0917860A2 (fr) Dispositif pour prothèse dentaire
DE19635357C2 (de) Vorgefertigte Zahnersatzkrone für die Zahnstumpfrestauration oder den Aufbau von Zahnprothesen
DE19929441C2 (de) Künstliche Zahnkrone und Verfahren zu ihrer Herstellung
DE10337462B4 (de) Verbindungsvorrichtung
DE102014108632A1 (de) "Prothesenbasis sowie Verfahren zur stoffschlüssigen Verbindung mindestens eines künstlichen Zahns mit einer Prothesenbasis"
DE10313825B4 (de) Mit einem Dentalimplantat verbindbarer Aufbau und Verfahren zur Herstellung eines solchen Aufbaus
DE3431890A1 (de) Verfahren und kupplung zur herstellung einer verbindung zwischen metallteilen im dentalbereich
DE19502845A1 (de) Verfahren zum Herstellen eines künstlichen Zahnes

Legal Events

Date Code Title Description
AK Designated states

Kind code of ref document: A1

Designated state(s): JP US

AL Designated countries for regional patents

Kind code of ref document: A1

Designated state(s): AT BE CH DE DK ES FI FR GB GR IE IT LU MC NL PT SE

121 Ep: the epo has been informed by wipo that ep was designated in this application
NENP Non-entry into the national phase

Ref country code: JP

Ref document number: 98506543

Format of ref document f/p: F

WWE Wipo information: entry into national phase

Ref document number: 09043445

Country of ref document: US

122 Ep: pct application non-entry in european phase