EP1519694A2 - Procede pour realiser un bridge dentaire et modele positif utilise a cet effet - Google Patents

Procede pour realiser un bridge dentaire et modele positif utilise a cet effet

Info

Publication number
EP1519694A2
EP1519694A2 EP03762573A EP03762573A EP1519694A2 EP 1519694 A2 EP1519694 A2 EP 1519694A2 EP 03762573 A EP03762573 A EP 03762573A EP 03762573 A EP03762573 A EP 03762573A EP 1519694 A2 EP1519694 A2 EP 1519694A2
Authority
EP
European Patent Office
Prior art keywords
modeling
model
positive model
blank
modeling aid
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.)
Withdrawn
Application number
EP03762573A
Other languages
German (de)
English (en)
Inventor
Hans-Ullrich Meier
Philip Von Schroeter
Peter Kreuder
Manfred Schuck
Frank Fuchs
Heiner HÖRHOLD
Bianca WÖLKI
Thomas Döring
Walter Kienzle
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.)
Degudent GmbH
Original Assignee
Degudent 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
Priority claimed from DE10248629A external-priority patent/DE10248629A1/de
Application filed by Degudent GmbH filed Critical Degudent GmbH
Publication of EP1519694A2 publication Critical patent/EP1519694A2/fr
Withdrawn legal-status Critical Current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
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/26—Dentures without palates; Partial dentures, e.g. bridges
    • 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
    • A61C13/225—Fastening prostheses in the mouth
    • A61C13/265—Sliding or snap attachments
    • A61C13/2653—Sliding attachments
    • G—PHYSICS
    • G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
    • G16H—HEALTHCARE INFORMATICS, i.e. INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR THE HANDLING OR PROCESSING OF MEDICAL OR HEALTHCARE DATA
    • G16H20/00—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance
    • G16H20/40—ICT specially adapted for therapies or health-improving plans, e.g. for handling prescriptions, for steering therapy or for monitoring patient compliance relating to mechanical, radiation or invasive therapies, e.g. surgery, laser therapy, dialysis or acupuncture
    • 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

  • the invention relates to a method for producing a dental bridge framework made of ceramic material, in particular containing zirconium oxide or consisting of this. Furthermore, the invention relates to a positive model for a bridge framework consisting of or containing ceramic material such as, in particular, zirconium oxide, which can be produced from a blank of preferably pre-sintered ceramic material such as zirconium oxide on the basis of the positive model in the CAM process. In particular, the invention also relates to a bridge framework using at least one blank made of ceramic material, which is processed by the CAM method.
  • a large number of devices and methods for producing artificial dental bridges are known.
  • the dental preparation in which the teeth serving for anchoring are prepared for the tooth bridge by grinding or e.g. B. a pin is implanted, an impression of the tooth stumps receiving the bridge, their surroundings and the jaw. This is usually done with silicone potting compounds, although other materials can also be used. From the impression, which shows the situation in the patient's mouth negatively, a so-called plaster cast is made. Master model made. This master model shows the situation in the patient's mouth positively.
  • the dental technician uses his manual skills to model a positive model of the basic framework of the dental prosthesis made of wax or plastic that melts and polymerizes at a low temperature. A positive model produced in this way then serves as the basis for the dentures.
  • the positive model created by the dental technician is embedded in refractory materials and melted out.
  • the basic structure can be created in the usual metallic dental alloys by investment casting in the resulting casting mold. At least anterior tooth areas are provided with a ceramic or plastic veneer.
  • Metallic bridge structures are known in various designs. There are also so-called Attachments that serve as detachable connections for removable partial dentures or superstructures or as firmly cemented or adhesively attached connections. Assembled auxiliary parts for wax models can be used to create attachment parts on cast metal bridge frameworks. Individually modeled wax constructions for the production of attachment parts on cast metal bridge frameworks are also known.
  • one-piece bridge structures made of high-performance ceramics which, for. B. consist of zirconia or yttria-stabilized zirconia.
  • a method for producing tooth crowns and dental bridges using a prefabricated ceramic reinforcing element is known, which is designed as attachment.
  • the prefabricated reinforcement element is machined in one or two dimensions to avoid the use of expensive CAD / CAM systems.
  • a primary part of an attachment for connecting implants is known, which is cast or soldered to a crown.
  • the primary part is cast, using a cast core having the shape of the primary part, which is made of plastic and burns without residue during casting.
  • the present invention is based on the problem of producing a method and a positive model of the type mentioned at the outset for producing a bridge framework made of ceramic, the length of which is greater than the usually available ceramic blanks. It should also be possible to apply bridge frameworks to tooth stumps that do not necessarily run parallel or essentially parallel to one another.
  • the bridge framework consists of at least two attachment parts, that each attachment part consists of a blank made of ceramic material processed in the CAM method and that a CAD model is used as a template for processing at least one blank or a hand-modeled model.
  • the bridge framework or the matrix, i. H. the sintered secondary part, and the patrix, d. H. the sintered primary part, after its manufacture, are veneered at least in the front area of the teeth.
  • a primary part of a positive model for a attachment attachment of a dental bridge is made available using the assembled modeling auxiliary part, in order to achieve lengths which exceed the existing blank lengths.
  • the design of the ready-made modeling aid is based on minimum geometries of the bridge framework to be manufactured, i.e. H. the patrix ensures that tensile stresses and stress-increasing notch effects are limited, influences that are basically irrelevant for metallic bridge frameworks.
  • a prefabricated modeling aid which consists of plastic and is composed of a cone-shaped web and a truncated cone, the web being connected to the cap in such a way that the modeling aid is aligned with the second tooth stump to be accommodated by the secondary part so that the longitudinal axis of the truncated cone runs parallel or approximately parallel to the second tooth stump, ie the direction of insertion, along which the die of the dividing attachment is pushed onto the second tooth stump.
  • the assembled modeling aid specifies a minimum cross-section and / or minimum radii at surface edges of the male part to be produced from the primary part.
  • the auxiliary modeling part is machined with a milling tool specifying a minimum radius in the edge running on the basal side.
  • the web and the truncated cone are designed on the inside and outside so that the primary part can be completely or almost completely digitized over its entire inner and outer surface in two positions rotated by 180 ° or approximately 180 ° to one another.
  • a ready-made modeling aid is used which has markings which indicate when minimum geometries are reached during processing.
  • the modeling aid can also be processed additively.
  • a film is applied to the truncated cone before the secondary part is modeled by hand in order to form a cement gap for the male part in the matrix to be produced from the secondary part.
  • a positive model for a bridge framework consisting in particular of zirconium oxide or containing it, the bridge framework being able to be produced from a blank such as pre-sintered zirconium oxide or containing this using the positive model in the CAM process is characterized in that the positive model consists of a primary part and a secondary part consists in that the primary part consists of a coping surrounding a first tooth stump and a prefabricated modeling aid connected to it, which in turn consists of a web connected to the coping and a truncated cone emanating from it, that the web and the truncated cone have a cone geometry on the outside such that that there is complete or almost complete digitization of the inner and outer surfaces when the modeling aid is scanned in two positions rotated by 180 ° or almost 180 °, and that the modeling aid has minimum geometries for one specifies the male part to be produced.
  • the minimum geometries are in particular the cross section of the web and / or radii on the respective surface edges of the trun
  • modeling aid is characterized by the fact that in the unprocessed state it runs at a distance from its outer surface and, when processed, has at least one visible or visible marking after reaching a minimum geometry.
  • a film is provided between the primary part and the secondary part of the positive model arranged on a master model to form a gap in the overlap area of the matrix and patrix to be produced from the primary and secondary part.
  • the film thus represents a removable placeholder and can be replaced by other elements with the same effect.
  • the gap formation also offers the advantage of compensating for manufacturing tolerances.
  • a two-part positive model intended for a bridge framework made of high-strength ceramic, is provided in the form of a dividing attachment.
  • the invention is characterized by a bridge framework using at least one blank made of ceramic material which is processed by the CAM method, the bridge framework consisting of at least two parts, each part consisting of a blank made of ceramic material processed in the CAM method and serves as a template for the processing of at least one blank, a CAD model or a hand-modeled model.
  • a CAD model the secondary conditions that also apply to the hand-modeled model described above are essentially fulfilled, in particular with regard to the minimum geometries.
  • the template can also be generated on the basis of this data by scanning the master model of digitized data obtained and generating a CAD model.
  • the model of a small cap can be calculated on the basis of the data obtained by scanning the master model and linked with data to be taken from libraries, in which outer geometries of the attachment parts to be produced taking into account the actual geometry of the master model or its areas, which connect to the bridge framework to be used , are filed.
  • FIG. 1 shows a longitudinal section through a three-part bridge structure which has a dividing attachment and divergent pillars
  • FIG. 3 is a side view of a modeling aid
  • FIG. 4 shows the modeling aid according to FIG. 3 with the film attached
  • Fig. 6 is a schematic diagram for generating a CAD model
  • the teaching according to the invention enables the creation of a dividing attachment for ceramic frameworks with a special geometry to minimize mechanical tensile stresses.
  • a positive model is first produced, which consists of a primary part and a secondary part.
  • the geometry of the positive model corresponds to that of the bridge framework.
  • a matrix and a male are produced taking into account specifically specified geometry offsets. Geometry offsets must be taken into account in particular if A ceramic blank is produced from pre-sintered, in particular yttrium oxide-stabilized zirconium oxide, which is then sintered, the matrix and the male.
  • FIG. 1 shows a longitudinal section through a three-part bridge framework 10, which is composed of a die 12 - a sintered secondary part - and a male part 14 - a sintered primary part 28. Between the die 12 and the male 14 there is a defined gap 16 into which binding agents such as cement or adhesive are introduced in order to connect the female 12 to the male 14. The male part 14 is pushed onto a first tooth stump and the female part 12 onto a second tooth stump, which do not necessarily have to run parallel to one another due to the teaching according to the invention.
  • a positive model is first modeled on a master model or corresponding model, at least one assembled modeling aid 18 being used according to the invention, which forms the area 20 in the male 14.
  • the modeling aid 18 consists of a truncated cone-shaped outer section (truncated cone 22) which is connected via a web 24 to a cap 26 which is first placed on a first tooth stump.
  • the modeling aid 18 forms together with the cap 26 a primary part 28, which is the template for the male 14.
  • a primary part 28 which is the template for the male 14.
  • the outer surfaces of the web 24 and the truncated cone 22 and the inner and outer surfaces of the cap 26 run along Koni, so that there is the possibility.
  • To completely digitize the top and bottom of the modeling aid part 18 and the cap 26 by digitizing the primary part 28 in two positions rotated by 180 °.
  • the modeling aid 18 is also designed such that minimum geometries for the male part 14 to be produced are observed. Obtain these minimum geometries refer among other things to the cross section of the web 24 and inner radii 30, 32 on all surface edges.
  • a desired minimum radius 27 is maintained by means of a milling tool when processing the lower edge of the web 24, that is to say the basal regions.
  • a modeling aid round element
  • the predetermined minimum geometries and the fact that the modeling aid 18 is assembled results in the advantage that machining notches are minimized and both a defined minimum cross section in the web area and desired inner radii in the transition area between the web and the adjacent surfaces are maintained, so that mechanical minimization Tension is achievable.
  • the modeling aid 18 is joined to the coping 26 on the processing side after the coping 26 is placed on the corresponding tooth stump, there is the further advantage that the axial direction of the truncated cone 22 to be referred to as the conical main part of the modeling aid 18 can be aligned parallel to the stump, onto which the die 12 can be pushed (parallel to the direction of insertion).
  • markings 36 are provided below the unprocessed outer surface of the modeling aid part 18, which markings indicate when predetermined minimum geometries are reached during processing. This signals that further material removal is not to be expected.
  • the attachment is intra-coronal, ie that the attachment runs in an intermediate link.
  • the outer surfaces of both the web 24 and the conical section 22 are conical, so that the desired digitization of the entire outer surface is possible.
  • a further development of the invention provides that a cap-shaped element is applied to the frustoconical section 22 of the modeling aid part 18 and in some areas along the web 24, on which a template is applied for the matrix 12 forming secondary part of the positive model is modeled. Before the corresponding secondary part is scanned, the assembled cap element 38 is then removed, so that, as a result, a desired gap is formed in the finished die 12 with respect to the section 20 of the male part 14.
  • a film (placeholder) can be provided instead of the cap-shaped element 38.
  • the primary part 28 or the secondary part is clamped in a holding frame, which in turn is mounted on a frame Shaft is mounted to allow rotation by 180 °.
  • the shaft is on one in three axes x, y. z precisely movable table mounted.
  • the axis of rotation of the shaft lies, for example, in the y direction.
  • the table drive can be mounted in a device housing.
  • the opening required in the device housing for the movement of the table can be covered in any manner known per se, e.g. B. by a bellows or a cuff.
  • an optical scanning unit for distance measurement is accommodated in the device housing.
  • the scanning unit comprises a laser beam source, not shown, e.g. B. a laser diode, and appropriately a device for reflecting the light of the laser diode into the beam path of the scanning unit and other optical elements, as well as a CCD camera matched to the sensitivity of the laser.
  • a birefringent crystal is arranged, which separates the laser light reflected from the primary or secondary part into a neat and an extraordinary part, whereby holograms with border areas that can be measured precisely and on the basis of which the exact distance to the measured point can be determined.
  • the scanning unit is fastened in the device housing in such a way that a emitted laser beam runs along the z-axis. After a one-off calibration during assembly, the scanning unit supplies absolute information about the distance to the object reflecting the laser beam, that is to say to the primary or secondary part clamped in the holding frame according to the so-called conoscopic holography. Details of this measuring method are described for example in WO 99/64916, US 5,953,137, WO 99/42908, US 5,892,602, US 5,291,314, EP 0 394 137, EP 0 394 138 and US 4,976,504.
  • the high intensity of the laser light allows the use of an imaging lens with a relatively small aperture, so that there is a depth of field that is greater than, for example, the typical height of the dental bridge.
  • the scanning unit Since the previously described scanning unit outputs measured values over the absolute distance of the point illuminated by the laser beam due to the reflection as a measured value, not only is the scanning unit adjusted when the device is installed such that the laser beam runs parallel to the z-axis of the table, but also The scanning unit is also calibrated via a reference plate that is clamped in the holding frame.
  • the range of tolerable blurring can be determined by moving the table in the z direction.
  • the holding frame is moved accordingly over the table along the z-axis of the table into the focus area of the scanning unit.
  • the plaster or positive model is now digital. siert by the holding frame and the table experience along the x and y axis, z. B. rows or columns, and this information with the distance information determined stony is linked.
  • the position of the table and thus of the model to be measured in the z direction is subtracted from the distance value which the scanning unit outputs in order to form the measurement data record.
  • the table is not moved along the z-axis, but only in the x and y directions.
  • a data pattern is generated which reflects the three-dimensional design of the side of the positive model or its parts facing the scanning unit.
  • each part of the positive model together with the holding frame after scanning one side by 180 ° z. B. rotated about the y-axis and the back is measured in the same way.
  • a pre-scan (pre-run of the method) can also be carried out before the start of the measurement of the first side of the positive model in order to determine an extreme value of the positive model in the z direction, e.g. B. the model point with the smallest distance to the scanning unit, and the associated z-value of the coordinates as a reference value and thus the distance information is standardized to the model point as a reference point.
  • This reference value can be used to form a reference plane perpendicular to the z-axis. In this way, the maximum dimensions of the measured model can be taken directly from the data set generated.
  • a processing machine or a processing tool such as a milling cutter.
  • a milling cutter is expediently integrated into a housing, for example in relation to the table opposite the optical scanning unit.
  • the milling cutter expediently has a fixed spindle.
  • a ceramic blank for example made of a pre-sintered yttrium oxide-stabilized zirconium oxide, is clamped in a further holding frame which is connected to the rear end of the shaft.
  • the feed movements in the x, y and z directions required for machining the side of the blank facing the milling cutter are carried out by correspondingly moving the table with the shaft and the holding frame.
  • the blank can be moved away from the milling cutter by advancing in the z direction and the holding frame can be rotated by 180 ° around the other side of the blank as when scanning the positive model or its parts to edit.
  • a male part can be produced from a ceramic blank such as zirconium oxide, which is then sintered. This male part then forms the basis for the secondary part to be produced.
  • FIG. 6 An arrangement is shown in principle in FIG. 6 with which a positive model or primary or secondary part of such an arrangement is not generated by hand modeling, but rather by scanning a master model 40 as CAD model 42.
  • the master model 40 is scanned in the usual way with a scanner 44.
  • the model of a cap is derived from the digitized data obtained in this way in a computer 46.
  • __ £ 2 chens (calculated and linked to data from a library in which outer geometries of positive models to be produced or parts thereof are stored in the form of attachment parts.
  • the corresponding data are linked to the digitized data of the master model 40 in order to produce the CAD model 42 7 on the basis of which a denture or attachment part is produced from a blank in the CAM process.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Animal Behavior & Ethology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Dentistry (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Surgery (AREA)
  • Urology & Nephrology (AREA)
  • Engineering & Computer Science (AREA)
  • Medical Informatics (AREA)
  • Primary Health Care (AREA)
  • Dental Preparations (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention concerne un procédé pour réaliser un bridge dentaire à partir d'un matériau céramique contenant notamment de l'oxyde de zircon ou composé de celui-ci. L'invention a pour objet la réalisation d'un bridge en céramique dont la longueur est supérieure à celle des ébauches céramiques de l'état de la technique. Elle doit aussi permettre la mise en place de bridges sur des moignons dentaires qui ne se déplacent pas de manière forcée parallèlement ou sensiblement parallèlement entre eux. A cet effet, le bridge est composé d'au moins deux parties de sédimentation, chaque partie de sédimentation est réalisée à partir d'une ébauche usinée par CAM en matériau céramique, et comme modèle pour l'usinage d'au moins une ébauche est utilisé un modèle CAD ou un modèle modélisé à la main.
EP03762573A 2002-07-02 2003-07-02 Procede pour realiser un bridge dentaire et modele positif utilise a cet effet Withdrawn EP1519694A2 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE10229718 2002-07-02
DE10229718 2002-07-02
DE10248629 2002-10-18
DE10248629A DE10248629A1 (de) 2002-07-02 2002-10-18 Verfahren zur Herstellung eines dentalen Brückengerüsts sowie Positivmodell für ein solches
PCT/EP2003/007019 WO2004004595A2 (fr) 2002-07-02 2003-07-02 Procede pour realiser un bridge dentaire et modele positif utilise a cet effet

Publications (1)

Publication Number Publication Date
EP1519694A2 true EP1519694A2 (fr) 2005-04-06

Family

ID=30116596

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03762573A Withdrawn EP1519694A2 (fr) 2002-07-02 2003-07-02 Procede pour realiser un bridge dentaire et modele positif utilise a cet effet

Country Status (3)

Country Link
EP (1) EP1519694A2 (fr)
AU (1) AU2003263166A1 (fr)
WO (1) WO2004004595A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATE555743T1 (de) 2000-11-08 2012-05-15 Straumann Inst Ag (dentale) oberflächenerfassung und erzeugung
WO2006005284A2 (fr) * 2004-06-10 2006-01-19 Willytec Gmbh Procedes et dispositifs pour realiser une prothese dentaire
JP5522882B2 (ja) * 2006-09-13 2014-06-18 大日本印刷株式会社 固体酸化物形燃料電池
DE102006047341B4 (de) * 2006-10-06 2013-08-08 Dcm Gmbh Brückengerüst als Zahnersatz
DE102014104456A1 (de) * 2014-03-13 2015-09-17 Amann Girrbach Ag Verfahren zur Herstellung zumindest eines Teilstücks einer Zahnprothese

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3640933A1 (de) * 1986-11-29 1988-06-01 Strobl Walter Geteilte, festsitzende zahnbruecke
US5873721A (en) * 1993-12-23 1999-02-23 Adt Advanced Dental Technologies, Ltd. Implant abutment systems, devices, and techniques
DE29501810U1 (de) * 1995-02-04 1995-03-16 A + M Dentalprodukte, 70619 Stuttgart Primärteil eines Geschiebes zum Verbinden von dentaltechnischen Teilen oder Implantaten
US5788498A (en) * 1995-12-19 1998-08-04 Ivoclar Ag Method for manufacturing dental crowns
CH693480A5 (de) * 1997-06-23 2003-08-29 Unor Ag Unor Sa Unor Ltd Konstruktionselement für eine Verbindung zwischen einem Restzahnbestand und einer Prothese.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2004004595A2 *

Also Published As

Publication number Publication date
AU2003263166A1 (en) 2004-01-23
WO2004004595A2 (fr) 2004-01-15
WO2004004595A3 (fr) 2004-11-04

Similar Documents

Publication Publication Date Title
EP1406554B1 (fr) Fabriquer une prothese dentaire a partir d'un modele positif mesure et numerise en trois dimensions
EP3388021B1 (fr) Procédé de détermination automatique d'une direction d'insertion pour une prothèse dentaire
DE69413852T2 (de) Verfahren zur Herstellung einer Prothese die auf im Kieferknochen eines Patienten fixierten Implantaten befestigt wird, und Vorrichtung zur Herstellung derartigen Prothesen
EP1782756B1 (fr) Procédé et dispositif destiné à la fabrication de prothèses dentaires
EP1406555B1 (fr) Procede et dispositif pour mesurer et numeriser en trois dimensions un modele dentaire
CH694571A5 (de) Verfahren zur Herstellung eines Zahnersatzes und eines Zahnersatzteiles, Material für ein Zahnersatzteil und Zahnersatzteil.
DE60223230T2 (de) Verfahren zur herstellung von dentalen restaurationselementen
DE102005016245B4 (de) Verfahren, Computer und computerlesbares Medium betreffend die Prüfung von Datensätzen für Zahnersatzteile
WO2020178195A1 (fr) Procédé de fabrication d'un corps moulé et corps moulé
EP0904743B1 (fr) Méthode de fabrication de prothèses dentaires et implants par moyens d'appareils CAD/CAM en utilisant des éléments préfabriqués
EP1927326B1 (fr) Procédé de fabrication d'une restauration dentaire
DE10145104A1 (de) Herstellung von Zahnersatz aus einem dreidimensional vermessenen und digitalisierten Modell
EP3784982A1 (fr) Calibrage dans le work-flow numérique
EP1519694A2 (fr) Procede pour realiser un bridge dentaire et modele positif utilise a cet effet
EP0796063B1 (fr) Procede de fabrication "sur mesure" d'articles prothetiques dentaires et procede de soins dentaires au moyen desdits articles
WO2008040400A1 (fr) Procédé de réalisation d'un élément prothétique en médecine dentaire
DE102006050457A1 (de) Verfahren zur Herstellung eines Kopfteils eines Zahnimplantats sowie Fertigungssatz für ein solches Verfahren
DE10248629A1 (de) Verfahren zur Herstellung eines dentalen Brückengerüsts sowie Positivmodell für ein solches
DE102013102412B4 (de) Verfahren zum Herstellen einer Teleskopprothese
WO2016138994A1 (fr) Ébauche pour fabriquer des prothèses dentaires qui comporte une zone dentinaire qui est incorporée dans une zone de fusion
EP3125819A1 (fr) Procédé de fabrication d'une couronne dentaire prothétique et utilisation spéciale d'une couronne dentaire

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20050114

AK Designated contracting states

Kind code of ref document: A2

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK

DAX Request for extension of the european patent (deleted)
RIN1 Information on inventor provided before grant (corrected)

Inventor name: KIENZLE, WALTER

Inventor name: DOERING, THOMAS

Inventor name: WOELKI, BIANCA

Inventor name: HOERHOLD, HEINER

Inventor name: FUCHS, FRANK

Inventor name: SCHUCK, MANFRED

Inventor name: KREUDER, PETER

Inventor name: VON SCHROETER, PHILIP

Inventor name: MEIER, HANS-ULLRICH

RIN1 Information on inventor provided before grant (corrected)

Inventor name: FUCHS, FRANK

Inventor name: SCHUCK, MANFRED

Inventor name: KREUDER, PETER

Inventor name: VON SCHROETER, PHILIP

Inventor name: MEIER, HANS-ULLRICH

Inventor name: KIENZLE, WALTER

Inventor name: DOERING, THOMAS

Inventor name: WOELKI, BIANCA

Inventor name: HOERHOLD, HEINER

17Q First examination report despatched

Effective date: 20061208

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131220

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20140703

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20141114