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EP2785274A1 - Procédé et dispositif de fabrication de parties primaires et secondaires de technique dentaire - Google Patents

Procédé et dispositif de fabrication de parties primaires et secondaires de technique dentaire

Info

Publication number
EP2785274A1
EP2785274A1 EP12797871.6A EP12797871A EP2785274A1 EP 2785274 A1 EP2785274 A1 EP 2785274A1 EP 12797871 A EP12797871 A EP 12797871A EP 2785274 A1 EP2785274 A1 EP 2785274A1
Authority
EP
European Patent Office
Prior art keywords
blank
base body
primary part
primary
main body
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Withdrawn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
EP12797871.6A
Other languages
German (de)
English (en)
Inventor
Lennart-Marten Risch
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of EP2785274A1 publication Critical patent/EP2785274A1/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Withdrawn legal-status Critical Current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
    • A61C13/0003—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

  • the invention relates to a method for the production of dental primary and secondary parts as well as a device suitable for carrying out the method.
  • a blank referred to blank is machined by a milling head such that from this blank, an elongated body is generated with a usually circular cross-section, from which then the primary part of a tooth replacement is to be made in further processing steps.
  • Crowns are considered as dentures, including telescopic and conical crowns and double crowns, but there are also bridges in question.
  • a primary part is used, which is mounted in the implantation of a patient on a so-called abutment, otherwise referred to as a pen and correspondingly ground down part of a natural tooth of the patient.
  • a secondary part is arranged on this primary part, which may be, for example, a crown or bridge.
  • connecting webs are always provided on the circumference of the basically circular cross section of the base body. see where the body already made is connected to the rest of the blanks still surrounding it. These connecting webs are required to hold the far completed body so that he, except for this webs, can be edited all around.
  • the primary part or its base body initially produced is basically elongated and has two opposite ends.
  • the later aligned in the patient's mouth to the jaw end is referred to in the present proposal as the first end and from this first end of the base body is hollowed out so that the then completed primary can be plugged onto a pin or on an implant screw ,
  • the accuracy of fit between the secondary part and the primary part is essential, as well as the accuracy of fit of the primary part to the associated implant screw or the associated pin:
  • two primary parts must be in absolutely parallel alignment with each other on the associated pins or implant abutments are placed on or can be removed from these. For this reason, it is not possible to produce prefabricated primary parts and secondary parts on a large scale, since these must always be adapted to the individual conditions prescribed for the respective patient in order to ensure the desired parallelism.
  • the direction in which the crown can be placed on or removed from a pin or on an abutment can be defined by means of a primary part, so that - depending on how the pen or the Abutment is aligned to the adjacent teeth - collisions with the adjacent teeth can be avoided and facilitates the handling of the crown or even made possible.
  • DE 1 1 2004 000 561 B4 discloses a method for producing a blank made of a ceramic material. From the blank, a dental reconstruction is then produced by cutting, which corresponds in this respect to the above-mentioned secondary part. In the preparation of the dental reconstruction remain on the peripheral surface initially still connecting webs to the rest of the blank, so that this way of manufacturing secondary parts of the above-described production of primary parts is similar. A production of primary parts is not addressed in this document.
  • EP 0 455 845 A1 discloses a blank body for producing a tooth restoration fitting. From the rod-shaped blank body, the base body is machined out so that its vertical axis, that is, the axis passing through the first and the second end of the base body, extends transversely to the longitudinal axis of the rod-shaped blank body. In addition, a holder is machined from the rod-shaped blank body, which adjoins the peripheral surface of the base body laterally and with uniform material, so that the base body can be machined at its two ends. Subsequently, the holder is separated from the base body.
  • the subsequent reworking of the location where the holder adjoins the peripheral surface of the tooth restoration fitting body is just as necessary as the post-processing of the body of a Pri märteils at the first end in the aforementioned prior art.
  • the tooth restoration fitting body is tooth-shaped, ie it corresponds to the secondary part of the prior art known from practice. A production of primary parts is not addressed in this document.
  • WO 97/30654 relates to an implantable dental prosthesis, an abutment therefor, as well as a method for the production of abutments.
  • the proposed primary part is optionally mounted on an abutment instead of a pin of a natural tooth.
  • the invention has for its object to improve a generic method to the extent that this can be carried out as economically as possible and within a short time, the production of the combination of secondary and primary part, as well as to provide a device for carrying out the method.
  • the invention proposes to carry out the milling process differently during the production of the main body, namely to produce both the circumference peripheral surface and the second end of the main body opposite the first end directly with the desired contour, ie the contour corresponding to the later primary part already corresponds, so that Therefore, these surfaces of the body must not be reworked later. Only at the first end so the body is still connected to the rest of the blank, for example, the already mentioned above blank.
  • the base body is held by means of a receiving part, which comprises the base body, similar to that of the wedding between the secondary part and primary part is known, so that the first end is now accessible for further processing by this holder of the body.
  • this receiving part is moved by a programmable handling machine and thus automatically moved through the room, placed on the body and is also held, so that by means of this programmable handling machine first the receiving part is placed on the base body.
  • the base body or the blank from which the base body has been worked out can be released after it has been connected to the receiving part and the receiving part is held by a programmable handling machine, since the held in the receiving part body now by means of the handling machine and means held by this handling machine receiving part in turn is held.
  • the main body can be separated by means of an automatic separator at the first end of the rest of the blank.
  • the automatic separator is programmable in space with respect to its mobility, so that it automatically moves to the appropriate location on the blank, where the body is to be separated from the rest of the blank.
  • the speed of a typically rotating one Tool, z. Example, a milling head or a cutting disc can preferably be controlled automatically, so that depending on the processing progress, with which the cutting tool is moved by the material of the blank, the tool speed and the feed speed of the separator can be controlled automatically by means of a suitable machine control ,
  • the main body is now hollowed out, so that now has become the primary part of the main body.
  • This excavation is carried out automatically by means of a programmable processing machine, for example by means of a CNC-controlled milling machine, so that, for example, a cavity designated as a bore can be precisely introduced into the basic body at a predetermined angle.
  • the course of this bore ensures the alignment of the primary part on a pin or abutment, and thus the subsequent parallelism with which a secondary part can be lifted off this primary part and a second primary part located in the patient's mouth, or ensures the direction in which a crown between two adjacent teeth can be lifted off the primary part.
  • the automatic handling and processing of the blank, of the base body created therefrom, as well as of the receiving part to be applied to the main body in the sense of the most economical and precise production possible, are preferably carried out by means of an electronic system or machine control.
  • the outer and inner contours of the primary part can be determined, for example, computer-aided, so that corresponding CAD data is available.
  • This CAD data can be processed either directly or by means of a suitable interface of the plant or machine control, so that in this way the individual handling and processing tools can be precisely guided in space to the desired outer and inner contours of the Primary part too produce.
  • the handling and / or the processing tools can be program-controlled at the end of a freely movable in space multi-axially movable robot arm, or be moved on a so-called carriage or a portal along a predetermined trajectory.
  • the same CAD data can be used for the production of the receiving or secondary part, it is also possible to achieve a shaping of the receiving or secondary part which is precisely adapted to the shape of the primary part.
  • the same CAD data can be transmitted almost simultaneously to two processing centers, so that the receiving part can already be made during the production of the primary part. It is not necessary to first make the primary part and only then, in adaptation to its outer contour, to produce the receiving part.
  • a method sequence may be provided, in which first the base body is hollowed out at its first end and only subsequently separated from the remainder of the blank. For example, during excavation, material removal progress may be radially from the center out, leaving an increasingly thinner edge around the progressively larger cavity. The main body remains connected via this edge with the rest of the blank and is separated when the milling head removes this edge.
  • the processing system can be equipped in this procedure, for example, with a single tool in the form of, for example, a milling head, this milling head serves to create from the blank, the outer surface of the body, to create the cavity in the body, as well as the main body from the rest of the blank separate.
  • a milling head serves to create from the blank, the outer surface of the body, to create the cavity in the body, as well as the main body from the rest of the blank separate.
  • the proposed, largely automatic machining of the blank and the body allows a fast and thus economical production of the primary part.
  • the fact that the holder of the blank and the base automatically, namely mechanically, is always ensured that the orientation of the body or blank is precisely defined in space, so that accordingly the correct position, the hollowing of the body can be done.
  • the mechanical handling and processing of the blank and the base body also ensures that this work can be carried out within a very short time and thus particularly economically.
  • the secondary part is used, which has been previously made.
  • This preparation can preferably also be done automatically, similar to that described for the production of the primary part, so that this automatic production of the secondary part and its orientation in space is known precisely and accordingly the secondary part can be precisely guided to the body.
  • the so-called wedding takes place when the secondary part is used as the receiving part, ie even before the final completion of the primary part, namely when the primary part has not yet been hollowed out. Because the finished secondary part is already used as the receiving part for holding the basic body, an additional handling step is unnecessary.
  • the receiving part is not prefabricated before it is placed on the body, but is created directly on the body.
  • a potting compound can be poured around the main body. It solidifies and lies exactly to the body.
  • two-component plastics can be used as potting compound. Their solidification or curing time can be adjusted so that this process takes no longer than when the receiving part is milled out of a block of material.
  • a rod-shaped blank is used instead of the aforementioned cuboid blanks. Since the main body or primary parts anyway have a substantially circular cross section, less material must be removed from the blank to complete the primary part, so that the processing time can be shortened and also the collection and processing of the machining chips is simplified and facilitated. Since the amount of such machining chips is reduced, in particular when processing high-quality and, accordingly, reprocessable ma- materials, eg As gold alloys, the reduction of the associated effort ensures improved efficiency in the production of dental prostheses.
  • each of the blank can be selected whose circumferential dimensions are as similar as possible to those of the primary part to be produced, so that In this way, the required material removal from the blank can be minimized.
  • a plurality of rod-shaped blanks with the different sizes are held in a common holder.
  • the automatic processing machine for example, a CNC-controlled milling machine can be controlled so that already processed blanks are not approached again for processing, but that is stored in the plant control of this machine, which blank to which extent at which position of the common holder still for Processing are available, so that accordingly the respective suitable blank for the next processing, ie for the production of the next primary part, is approached.
  • the distances between the blanks on the common holder to each other are so large that the processing by means of the processing machine is easily possible.
  • a plurality of rod-shaped blanks are mounted individually with the different sized circumferential dimensions. Due to the automated mechanical production of the primary part, it is possible to provide a system control which, depending on the known dimensions of the primary part to be produced, has the best suited suitable blank or stock with the most suitable blanks selects, so that a holding device can automatically start this camp, detects the suitable blank from this camp and brings into the processing position in which the material-removing machining of the blank for the production of the body. This can be done in a similar manner as is known, for example, from automatic plotters, in which crayons with different stroke widths or different colors are automatically detected or changed.
  • a disk-shaped blank or blank can be used, which is referred to in this case as Ronde.
  • the diameter of the blank is dimensioned so large that several bodies can be worked out of the blank. It is provided that the still to be produced base body or primary parts are within the Ronde that the free second ends of an upper side of the Ronde are adjacent, while the first ends are provided near the bottom of the Ronde.
  • the areas of the blank provided for producing the main body or primary parts are referred to as processing stations, so that, depending on the size and arrangement of the processing stations, it is possible to create quite different numbers of primary parts from two identically sized blanks.
  • the division of the blank in such processing stations may be provided purely mentally or be deposited in a plant control of the machining tool so that the machining tool gradually anche the individual still unprocessed processing stations Ronde, there mills a base body of the blank material, and then this area the blank is stored in the system control as edited.
  • Ronde At the bottom of Ronde can be provided at each processing station a hole, so that there the material to be removed during excavation of the body, already at the factory the volume of the hole is reduced.
  • the number and size of the processing stations can be predetermined by the factory and the size of the holes.
  • a receiving part, which is applied to the carved out of the blank basic body can also be worked out of a Ronde by milling, with a complementary to the main body of the first Ronde shape.
  • This second Ronde can also be held by means of a clamping ring, namely advantageous to the clamping ring of the first Ronde, so that subsequently the first Ronde can be solved by the holding device and both blanks can be handled together, z. B. to hollow out the body.
  • a blank may be present as a finished workpiece, which approximates the shape of a primary part already ex factory, and in which only a fine or post-processing of the outer surface must be made and the cavity must be generated.
  • the volume of the material still to be removed can be kept very low by such teilfertigme workpieces, so that thereby the required processing time can be kept low and in a relatively short time a variety of primary parts can be produced economically.
  • a base body is produced from the blank, which does not have an exactly circular cross-sectional peripheral contour, but a deviating outer contour.
  • the secondary part has a complementary to this peripheral contour recess so that the secondary part can be placed on the main body or on the primary part and the primary part is held against rotation in the secondary part.
  • this rotation between body and secondary ensures that in a subsequent excavation of the body z. B. by means of a drill, milling cutter or the like of the base body can be kept defined and can be reliably ruled out that the main body rotates in the secondary part.
  • a device having a blank holding the first holding means and a base body of the blank generating processing machine which generates the body materialabtragend, for example by a router, a laser device, a water jet cutter or the like. Furthermore, the device has a second holding device which holds the secondary part and a separating device which separates the main body at the first end of the remaining blank when the main body in
  • the device has a processing machine, which hollow out the base body, namely from its first end, and finally the device has a programmable controller, which is designed to control the aforementioned elements of the overall device.
  • the device described can also be developed in such a way that it is designed for the production of the secondary part and has a material-removing processing machine suitable for this purpose. In this way, in turn, a transfer step is avoided, thus improving the precision in the production of the dental prosthesis, since on one and the same device both the main body and the primary part as well as the secondary part are produced, so that in the transfer of the individual primary and Abutments and their marriage as high degree of accuracy in the positioning of these individual parts can be ensured.
  • An economically advantageous embodiment of the device may be advantageous in that the same processing machine is provided for producing the base body and for creating its cavity, for example the same milling machine. As a result, not only the required space requirement of the proposed device is reduced, but also reduces the technical complexity of the device, so that this can ultimately be produced and operated more economically.
  • FIG. 3 shows a bridge with two secondary and primary parts
  • FIG. 4 shows the processing of a blank into a base body and a primary part in several steps
  • FIG. 5 shows an embodiment of a blank-shaped blank
  • FIG. 6 a blank blank in section and partly broken away
  • FIG. 7 shows a first clamping ring for receiving a blank-shaped blank for primary parts
  • FIG. 8 shows a second clamping ring for receiving a blank-shaped blank for secondary parts
  • Fig. 9 is a view of the two clamping rings, with two held therein ronde-shaped blanks.
  • a holder 1 is shown, the three differently shaped blanks 2 carries.
  • Each of the blanks 2 is designed in each case as a cylindrical rod, wherein the three blanks 2 have three different diameters.
  • the blanks 2 can be present separately and detected by a first holding device and retrieved from a warehouse and brought into a processing position and held there, in which they are accessible to a programmable processing machine.
  • cylindrical blank 2 is brought into the machining position, as shown in FIG. 4 represents a first processing step I in the manufacture of a primary part.
  • a base body is produced, as can be seen from FIG. 2 and identified there with 3.
  • the main body 3 is shown in the drawings for better visual distinction from the remaining, still connected to the main body 3, cylindrical portion of the blank 2 as a truncated cone. It has a first end 5, which adjoins de unprocessed portion of the blank 2, as well as an opposite free, second end 4.
  • the main body 3 represents the material-processed portion of the same blank 2.
  • the blank 2 is held in the region of its unprocessed portion, namely by means of the mentioned first holding device.
  • the main body 3 can be machined out of the blank 2, wherein both the frusto-conical peripheral surface and the free, second end 4 are finished, that is to say receive the surface design which is to have the finished primary part.
  • the base body 3 may have a cross-sectional peripheral contour deviating from the circular circular
  • a rib 12 is shown which extends over the height of the main body 3.
  • a receiving part 6 is placed on the base body 3.
  • the receiving part 6 is held by means of an electronically controlled second holding device and brought to the main body 3 and placed on the base body 3. Subsequently, the first holding device, which has first held the blank 2, release the blank 2, since the processed portion of the blank 2, namely the base body 3, is now held together with the receiving part 6 of the second holding device.
  • the placement of the receiving part 6, as shown in FIG. 4, represents a third processing step III in the manufacture of a primary part.
  • the receiving part 6 according to FIG. 4 has a cross-sectional inner contour deviating from the circular circumference, which is complementary to the cross-sectional peripheral contour of the main body 3, so that the base body 3 is held against rotation in the receiving part 6.
  • the main body 3 can be separated from the rest of the blank 2, namely at the first end 5. This is shown in FIG. 4 as the fourth processing step IV.
  • a separator for. B. in the form of pliers, a cutting disc, a Saw or the like separates the main body 3 from the rest of the blank 2 in the direction of the arrow.
  • the body 3 can be eroded.
  • the main body 3 of FIG. 2 is retained in the receiving part 6 in a force-locking manner solely on account of the friction forces, while in the exemplary embodiment of FIG. 4 the rib 12 creates an additional, positive rotation safeguard.
  • the cavity can preferably be produced by means of the same processing machine which has previously produced the outer surfaces of the base body 3.
  • a primary part 7 is created, as shown in step VI of FIG. 4 or can also be seen in FIG. 3 or 2.
  • the shape, size and location of the excavation depends on the individual circumstances, eg. B. whether the primary part 7 is provided for a crown or bridge, and how are the physiological conditions of the patient to be cared.
  • a bridge 1 1 is shown, wherein two primary parts 7 are used, the cavities cooperate with a respective tooth pin and are aligned so that two parallel lines of movement when placed on or when removing from the two tooth pins result.
  • Fig. 5 shows a blank 2, which is designed as a so-called Ronde 9, so as a cylindrical, flat disc whose
  • FIG. 6 shows a section through a part of the blank 9 in the region of a processing station 10. From the material of the blank 9, a base body 3 has been worked out in the region of the processing station 10, so that the outer contour of the base body 3 is already exposed, namely the second, free end 4 and the peripheral surface, and so that around the base 3 around the material thickness of the blank 9 is significantly reduced.
  • the first end 5 of the base body 3 is provided at a distance above the side of the blank 9 shown in FIG. 6 below.
  • Fig. 6 the running through the blank 9 sectional area is shown hatched, with solid lines.
  • a hatching with broken lines indicates the area of the main body 3, which is removed when hollowing the base body 3, so that then a hollow, approximately cup-shaped primary part 7 is created.
  • the inner contour of the primary part is also shown in Fig. 6. It runs along a line marked 22.
  • the base body 3 After hollowing remains a comparatively thin-walled primary part 7, wherein during the same milling operation, the base body 3 is not only hollowed out, but also separated from the rest of the blank 9.
  • the first end 5 of the primary part is provided where the base body 3 connects to the reduced material thickness of the blank 9.
  • the second Ronde 18 is held by means of a second clamping ring 19 in its first Ronde 9 adjacent position.
  • the second clamping ring 19 is designed substantially like the first clamping ring 14 and also has keyhole 17.
  • blanket pins 20 serve to fix the second clamping ring 19.
  • the blanking bolts 20 are attached to the first clamping ring 14, namely screwed into threaded holes 21.

Landscapes

  • 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 Tools And Instruments Or Auxiliary Dental Instruments (AREA)
  • Dental Prosthetics (AREA)

Abstract

L'invention concerne un procédé de fabrication de parties de prothèses dentaires qualifiées de partie primaire (7) et partie secondaire (8). Un corps de base (3) est tout d'abord automatiquement produit à partir d'une ébauche (2) par enlèvement de matière au moyen d'une machine de façonnage programmée comme, par exemple, au moyen d'une fraiseuse à contrôle numérique. Le corps de base (3) présente une première extrémité (5) et une deuxième extrémité (4) ainsi qu'une surface périphérique s'étendant entre ces deux extrémités (4, 5) et sa deuxième extrémité (4) ainsi que la surface périphérique correspondent précisément à la partie primaire (7) à fabriquer. Ensuite, une partie de réception (6) est appliquée sur le corps de base (3) et est maintenue automatiquement au moyen d'une machine de manutention programmable de telle manière que l'orientation du corps de base ou encore de l'ébauche dans l'espace soit précisément définie afin que le corps de base (3) soit maintenu au moyen de la partie de réception (6) qui entoure le corps de base (3) et laisse ainsi libre la première extrémité (5) du corps de base (3). Ce dernier (3) est séparé à la première extrémité (5) du reste de l'ébauche (2) au moyen d'un appareil de séparation automatique. Le corps de base (3) est évidé automatiquement à partir de la première extrémité (5) pour créer la partie primaire (7). Une partie secondaire (8) qui présente un évidement dont la surface est adaptée au contour extérieur de la partie primaire (7) est fabriquée. Et dans le cadre d'un assemblage, la partie secondaire (8) est placée sur la partie primaire (7) ou encore la partie primaire (7) est insérée dans la partie secondaire (8).
EP12797871.6A 2011-12-02 2012-12-03 Procédé et dispositif de fabrication de parties primaires et secondaires de technique dentaire Withdrawn EP2785274A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011055957A DE102011055957B3 (de) 2011-12-02 2011-12-02 Verfahren und Vorrichtung zur Herstellung von zahntechnischen Primär- und Sekundärteilen
PCT/EP2012/074266 WO2013079724A1 (fr) 2011-12-02 2012-12-03 Procédé et dispositif de fabrication de parties primaires et secondaires de technique dentaire

Publications (1)

Publication Number Publication Date
EP2785274A1 true EP2785274A1 (fr) 2014-10-08

Family

ID=47297243

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12797871.6A Withdrawn EP2785274A1 (fr) 2011-12-02 2012-12-03 Procédé et dispositif de fabrication de parties primaires et secondaires de technique dentaire

Country Status (3)

Country Link
EP (1) EP2785274A1 (fr)
DE (1) DE102011055957B3 (fr)
WO (1) WO2013079724A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4000552A1 (fr) 2020-11-13 2022-05-25 millhouse GmbH Procédé de génération d'un modèle volumique numérique d'une pièce primaire et d'un modèle volumique numérique d'une pièce secondaire d'une prothèse dentaire et procédé de fabrication d'une pièce primaire et/ou d'une pièce secondaire d'une prothèse dentaire

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Publication number Priority date Publication date Assignee Title
DE3118890A1 (de) * 1981-05-13 1983-01-27 Hans-Albert 2857 Langen Kreylos Verfahren zur herstellung von zahnersatzteilen
DE69006012T2 (de) 1990-05-07 1994-05-05 Nestle Sa Verfahren zur Kaffeeextraktion in flüssiger Phase.
DE59005464D1 (de) * 1990-05-09 1994-05-26 Siemens Ag Rohlingkörper zur Herstellung eines Zahnrestaurations-Passkörpers.
AU1794597A (en) * 1996-02-22 1997-09-10 Arnold Wohlwend Implantable tooth replacement, abutment therefor and process for making abutments
JP2006521842A (ja) * 2003-04-04 2006-09-28 クサヴェクス・アクチエンゲゼルシャフト 歯科補綴を製造する方法
US20070108645A1 (en) * 2003-11-26 2007-05-17 Philip Von Schroeter Method for producing a molded piece
US20090275000A1 (en) * 2009-04-28 2009-11-05 Yunoh Jung System and Method for Securing Multiple Ceramic Dental Blocks for Milling
US20090274994A1 (en) * 2009-04-28 2009-11-05 Yunoh Jung Device and Method of Securing Dental Material for Production of Dental Prosthesis

Non-Patent Citations (1)

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Title
See references of WO2013079724A1 *

Also Published As

Publication number Publication date
WO2013079724A1 (fr) 2013-06-06
DE102011055957B3 (de) 2013-03-28

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