EP2964140A1 - Procédé de fabrication d'une base de prothèse - Google Patents

Procédé de fabrication d'une base de prothèse

Info

Publication number
EP2964140A1
EP2964140A1 EP14707928.9A EP14707928A EP2964140A1 EP 2964140 A1 EP2964140 A1 EP 2964140A1 EP 14707928 A EP14707928 A EP 14707928A EP 2964140 A1 EP2964140 A1 EP 2964140A1
Authority
EP
European Patent Office
Prior art keywords
wax
temporary
artificial teeth
prosthesis base
prosthesis
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Withdrawn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
EP14707928.9A
Other languages
German (de)
English (en)
Inventor
Ineke LINDEMANN
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.)
Amann Girrbach AG
Original Assignee
Amann Girrbach AG
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 Amann Girrbach AG filed Critical Amann Girrbach AG
Publication of EP2964140A1 publication Critical patent/EP2964140A1/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Withdrawn legal-status Critical Current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
    • A61C13/20—Methods or devices for soldering, casting, moulding or melting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • 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
    • A61C13/01—Palates or other bases or supports for the artificial teeth; Making same
    • 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
    • A61C13/01—Palates or other bases or supports for the artificial teeth; Making same
    • A61C13/04—Palates or other bases or supports for the artificial teeth; Making same made by casting
    • 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

Definitions

  • the present invention relates to a process for producing a
  • a prosthesis base made of plastic for a full or partial dental prosthesis the prosthesis base having prosthetic base receiving recesses for artificial teeth, and based on a digital data set representing a shape of the denture base
  • Prosthesis base with the denture base receiving recesses is reflected, is produced.
  • Dental full or partial dentures basically consist of at least two different components. On the one hand, this is a prosthesis base which replaces the missing parts of the gum in the patient. On the other hand, these are artificial teeth, which replace the missing natural teeth of the
  • the artificial teeth are connected in the full or partial denture with the denture base and have both therapeutic and aesthetic functions.
  • a full denture replaces all the teeth of a patient's jaw.
  • a partial denture only a part of it.
  • Artificial teeth are offered by various manufacturers.
  • the prosthetic teeth available on the market are ready-made shapes that vary in their colors. There are pre-fabricated tooth shapes on the market of various sizes, which are selected by the dental technician according to certain individual characteristics of the patient, e.g.
  • the denture base made of plastic or to be produced must fit exactly to the particular edentulous or partially edentulous mandibular arch of the patient and, as it were, take into account the individual prescriptions in the patient's mouth. Full or partial dentures are available both for the upper jaw and for the
  • EP 1 444 965 B1 provides that, based on the aforementioned digital data set, the prosthesis base is produced directly and then filled with prefabricated teeth.
  • An at least similar procedure is also described in DE 40 25 728 AI.
  • it is always provided in each case that so-called registratbases are milled out of a plastic block on the basis of the said digital data set, in order then to set up the teeth in further steps.
  • a prosthesis base or at least one prosthesis base is thus always provided that, based on the aforementioned data set, a prosthesis base or at least one prosthesis base
  • Oral cavity of the patient can be adjusted. It then stays to this
  • Adjustment only a machining, in which disturbing areas of the denture base or the Registratbasis removed but never missing parts can be added.
  • the object is therefore to propose a new embodiment of the generic method, which improves the possibilities for producing an optimally adapted denture base.
  • the invention proposes a method according to
  • a basic idea of the invention is thus, based on the data set, which reflects a form of the prosthesis base with the prosthesis base receiving recesses, not directly the prosthesis base itself but as an intermediate step a wax temporary with the corresponding
  • Wax proposorption receptacles for the artificial teeth Wax proposorption receptacles for the artificial teeth
  • This wax temporary offers the possibility that it can be found in the mouth of the patient or even without a patient on a corresponding plaster cast
  • Wax temporary e.g. After previous heating so reshaped or edited by milling or by anabolic or generative process so that an optimal fit is present. In this case, then optimized in his fit wax temporary can be used to make the denture base.
  • An advantage of the intermediate step according to the invention via the temporary wax is thus essentially that the temporary wax prepared on the basis of the digital data set can be better adapted to the desired optimum shape, as a made according to the prior art from the digital data set prosthetic base made of plastic.
  • the temporary wax there are various options for making the temporary wax. For example, it can be provided that the wax provisional with the
  • wax provisional recesses for the artificial teeth is milled on the basis of the digital data set with a milling device.
  • corresponding wax provisional receiving recesses for the artificial teeth based on the digital data set is produced by a generative method.
  • Suitable generative methods are known in the art known. There are methods with which the body to be erstend sirloin, here so the temporary wax, possibly multi-layered, is built. As an example, it should be mentioned that the wax provisional with the
  • Wax temporary recesses based on the digital data set with a 3D plotter or 3D printer usually liquid, wax is built up.
  • suitable generative methods are also the so-called selective laser melting so selective melting by means of laser or the
  • Wax temporary already produced according to the invention Wax temporary already produced according to the invention
  • Wax provisional receiving recesses and always has the shape of the entire data set, which has the shape of a prosthesis base with their prosthesis base receiving recesses.
  • the wax temporary thus also has at least one surface which serves to rest against the gum in the condition inserted in the mouth of the patient.
  • a first consists e.g. in per se known copy milling. It is equally possible to scan the wax temporary and then, based on the data set thus generated, to fix the denture base e.g. to make a computer-controlled milling or the
  • Prosthesis base with the prosthesis base receiving recesses with a generative method e.g. with one of the above with respect to the wax temporary exemplified generative method to build from plastic.
  • Prosthesis base receiving recesses arranged artificial teeth using the wax temporary with or without the in the
  • Wax temporary receiving recesses arranged artificial teeth is produced in a casting process or in a stuffing process.
  • conventional plastic casting or stuffing methods can be used in dental technology.
  • the artificial teeth are inserted into the wax temporary accommodation recesses before the preparation of the prosthesis base become.
  • preferred variants again provide that the prosthesis base with artificial teeth inserted in the prosthesis base receiving recesses using the temporary wax into the
  • Wax temporary insertion recesses used artificial teeth is made.
  • the artificial teeth may be prefabricated products that can be purchased on the market and, unless their root is too long, inserted into the wax provisional receiving recess or prosthesis base receiving recess without further processing. Are the artificial ones
  • Teeth too long, so provides a preferred variant of the method according to the invention that at least a portion of the artificial teeth before insertion into the
  • Prosthesis base receiving recesses are pre-shortened in their, to be arranged in the wax provisional or denture base area.
  • artificial tooth is its root or cervical area. This is shortened in this preferred embodiment prior to insertion. This can be done manually. There are already known in the prior art in the form of DE 10 201 1 101 678 A21 possibilities, such as this shortening of the artificial teeth can be done automatically or computer controlled.
  • Milling device first the temporary wax with appropriate
  • Wax temporary recesses for the artificial teeth can also be recourse to procedures, as described in the prior art, are used. Such methods are e.g. in the aforementioned prior art in the form of EP 1 444 965 B 1 described. It can thus be provided that first the shape of the partially or completely edentulous mandibular arches is scanned in the patient's mouth.
  • Prosthesis base receiving recesses reflects.
  • Fig. 2 is a wax temporary for the upper jaw without artificial teeth
  • Fig. 3 is a temporary wax for the lower jaw without artificial teeth
  • FIG. 6 schematically illustrates the mold made using the temporary wax of the upper jaw with the artificial teeth of Fig. 4;
  • FIG. 7 shows the same mold as FIG. 6, but with the wax provisional already removed
  • FIG. 9 shows the completed prosthetic base of the lower jaw with inserted artificial teeth
  • FIG. 10 shows the denture base of the upper jaw without artificial teeth
  • Figure 1 the prosthesis base of the lower jaw without artificial teeth.
  • FIG. 1 shows a known in the prior art milling device 5 in the form of a CNC milling device, which is controlled by a control computer 14.
  • the milling device 5 has a housing 12 with a processing cavity 15.
  • the processing cavity 15 is accessible from the outside when the closure flap 13 is open, as shown in FIG. 1, and can be closed during the milling process by correspondingly lowering the closure flap 1 3.
  • Wax temporary 6 with the wax provisional receiving recesses 7 for the artificial teeth 4 are performed.
  • the digital data set which is a form of the prosthesis base 1 to be produced with the
  • Prosthesesbasisiereaus fundamentalaus Principle Inc. 3 reflects are loaded into the control computer 14, which passes the corresponding control commands for the milling process for producing the wax temporary 6 to the milling device 15.
  • the wax blank not shown here on the
  • Fastening device 18 of the pivot arm 17 in not shown here but fixed in a known manner.
  • the wax blank is shown in the picture
  • the pivot arm 17 is additionally pivotable about the pivot axis 16.
  • the tool carrier head 21 can be moved in all three spatial directions in the processing cavity 15 in the illustrated embodiment of the milling device 5. Such a milling process is known per se and need not be explained further here.
  • FIG. 2 shows a corresponding wax provisional 6 with the
  • Wax temporary recesses 7 for the upper jaw Wax temporary recesses 7 for the upper jaw.
  • Fig. 3 shows a corresponding temporary wax 6 with the
  • Wax temporary recesses 7 for the lower jaw Wax temporary recesses 7 for the lower jaw.
  • these wax provisional 6 are each already in the
  • a casting mold 8 is then made with the temporary wax 6 with the artificial teeth 4 arranged therein, the inner cavity 9, the outer contour of the temporary wax 6 with the in the
  • FIG. 6 diagrammatically shows a corresponding casting mold 8 with the temporary wax 6 arranged therein with the artificial teeth 4 according to FIG. 4. It is thus the casting mold 8 for the denture base 1 for the upper jaw.
  • the production of the mold 8 for the lower jaw using the temporary wax 6 according to FIG. 5 is carried out accordingly and is not shown here.
  • the casting mold 8 consists of an upper mold half 22 and a lower mold half 23. These two mold halves 22 and 23 remain closed in the first variant of the method according to the invention until, as explained below, the finished prosthesis base 1 with the therein arranged artificial teeth 4 is removed.
  • the upper mold half 22 is shown transparent, so that one can recognize the position of the inner cavity 9.
  • the mold 8 or the upper and lower mold halves 22 and 23 form a negative impression of the wax temporary 6 with artificial teeth 4 inserted therein.
  • the mold halves 22 and 23 or the mold 8 can be made of gypsum or other suitable material by pouring the wax provisional 6 inserted artificial teeth 4 are generated.
  • the temporary wax 6 in the casting mold 8 can be melted and the resulting liquid wax can be discharged from the internal cavity 9 through overflow openings 10 of the casting mold 8.
  • the artificial teeth 4 are held during and after the release of the liquid wax from the inner cavity 9 of the mold 8 in its position in the inner cavity 9. The situation in which the temporary wax 6 by melting and draining the wax from the
  • Inner cavity 9 become vacant volume 1 1 to form the prosthesis base 1 are filled with the plastic from which the future prosthesis base 1 consists. Suitable pourable and then curing plastics for the formation of dental prosthesis bases are known in the art. When filling the vacant volume 1 1 with the plastic and the artificial teeth 4 in the prosthesis base 1 are also attached. If the plastic has hardened accordingly, the casting mold 8 can be made e.g. opened by separating upper and lower mold halves 22 and 23 and the prosthesis base 1 together with the therein
  • the prosthesis base 1 can still with known in the prior art means, for. Be reworked by milling, e.g. to remove sprue pieces from the overflow openings 10.
  • one of the overflow 10 can be used as a filler neck and the other overflow 10 as a vent.
  • the inner cavity 9 can also be filled by both overflow openings 10 with correspondingly liquid plastic, wherein then conveniently other, not shown here
  • FIG. 9 shows a corresponding
  • arranged artificial teeth 4 shown in FIG. 5 can be used as a starting product.
  • Wax temporary 6 performed with inserted into the wax provisional receiving recesses 7 artificial teeth 4.
  • the artificial teeth 4 can then follow the casting process in the
  • Denture base receiving recesses 3 are inserted or glued in accordance with, then again to produce the complete full denture 2 according to FIGS. 8 and 9. Is based on a temporary wax 6 without the therein
  • Inner cavity 9 are removed.
  • Wax temporary 6 can be found here in part no additional illustrations.
  • Scanning devices are just as well-known as the milling device shown by way of example in FIG. 1 or the already mentioned apparatuses for carrying out generative production methods.
  • the prior art known per se generative method with which both the wax provisional 6 and the wax
  • Prosthesis base 1 can be produced, shown schematically.
  • FIG. 12 shows by way of example the production of a prosthesis base 1 or a temporary wax 6 by means of a 3D plotter or 3D printer known per se.
  • the printer head 24 successively carries the layers 25 of the corresponding material, ie the wax or the plastic, and thus gradually creates the digitally stored or predetermined shape of the prosthesis base 1 or of the
  • Fig. 12 as well as Figs. 13 and 14 the respective already applied layers 25 are shown in solid. The not yet produced, so still to be produced Areas of the prosthesis base 1 and the temporary wax 6 are surrounded by dashed lines.
  • Fig. 1 3 shows an example of the preparation of a prosthesis base 1 and a
  • Wax temporary 6 by means of a so-called “selective laser melting” process, which is also known per se
  • corresponding granules or corresponding powder 28 of the respective material, ie, wax or plastic are melted by the laser beam 27 of the laser light source 26.
  • the temporary wax 6 or the prosthesis base 1 to be produced is usually placed on a lowerable base plate 29, so that the distance between the laser light source 26 and the slice 25 to be produced in each case increases as the layers build up It is of course also possible to lift the laser light source 26.
  • the individual layers 25 are formed in any case, as is the case with the printer head 24 according to FIG. 12, in which the regions to be produced are traversed accordingly.
  • FIG. 14 shows by way of example a third usable generative method for the production of prosthesis base 1 or temporary wax 6.
  • the component to be manufactured 1 and 6 is located on a lowerable in the bath 30 base plate 29, so again, the distance between the laser light source 26 and each straight
  • layer 25 is constant. 13 and 14, the regions of prosthesis base 1 and temporary wax 6 still to be produced by driving off the corresponding shape by means of laser light source 26 or laser beam 27 are also shown by dashed lines. The already applied layers 25 are shown in solid lines. The possibility according to the invention of checking and optionally adapting the fit of the temporary wax 6 prior to preparation of the prosthesis base 1 consists in all variants of the method described here.
  • FIGS. 4 and 5 as well as FIGS. 8 and 9 each show full dentures 2 for upper and lower jaws. Partial dentures for only partially edentulous upper and / or lower jaw are made accordingly and are not explicitly shown here.

Landscapes

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

Abstract

L'invention concerne un procédé de fabrication d'une base de prothèse (1) en matière plastique destinée à une prothèse dentaire totale ou partielle (2). La base de prothèse (1) comporte des évidements (3) destinés à recevoir des dents artificielles (4) et elle est fabriquée sur la base d'un jeu de données numériques reproduisant une forme de la base de prothèse (1) dotée des évidements (3) destinés à recevoir les dents artificielles (4). A partir de ce jeu de données numériques, on réalise d'abord un provisoire en cire (6) doté d'évidements (7) correspondants destinés à recevoir les dents artificielles (4) puis on réalise la base de prothèse (1) en utilisant le provisoire en cire (6).
EP14707928.9A 2013-03-07 2014-02-06 Procédé de fabrication d'une base de prothèse Withdrawn EP2964140A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013003913.4A DE102013003913A1 (de) 2013-03-07 2013-03-07 Verfahren zur Herstellung einer Prothesenbasis
PCT/AT2014/000024 WO2014134640A1 (fr) 2013-03-07 2014-02-06 Procédé de fabrication d'une base de prothèse

Publications (1)

Publication Number Publication Date
EP2964140A1 true EP2964140A1 (fr) 2016-01-13

Family

ID=50230823

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14707928.9A Withdrawn EP2964140A1 (fr) 2013-03-07 2014-02-06 Procédé de fabrication d'une base de prothèse

Country Status (6)

Country Link
US (1) US20160000539A1 (fr)
EP (1) EP2964140A1 (fr)
JP (1) JP2016513480A (fr)
CN (1) CN105208967B (fr)
DE (1) DE102013003913A1 (fr)
WO (1) WO2014134640A1 (fr)

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DE102014108632A1 (de) * 2014-06-18 2015-12-24 Heraeus Kulzer Gmbh "Prothesenbasis sowie Verfahren zur stoffschlüssigen Verbindung mindestens eines künstlichen Zahns mit einer Prothesenbasis"
DE102014114278B4 (de) * 2014-10-01 2022-08-25 Kulzer Gmbh Form zur Herstellung eines vorgeformten Prothesenbasisrohlings
DE102015101978B3 (de) * 2015-02-11 2016-07-14 Heraeus Kulzer Gmbh Erstellen einer Wachs- oder Kunststoffbasis zur Fertigung einer Dentalprothese
JP6815068B2 (ja) * 2015-07-09 2021-01-20 三井化学株式会社 義歯床、有床義歯、義歯床の製造方法および有床義歯の製造方法
DE102016114825A1 (de) * 2016-08-10 2018-02-15 Ivoclar Vivadent Ag Verfahren zur Erzeugung einer Prothese oder Teilprothese
JP6542176B2 (ja) * 2016-09-27 2019-07-10 大輔 小澤 有床補綴装置およびその製作方法
DE102016119598B4 (de) * 2016-10-14 2019-09-12 Heraeus Kulzer Gmbh In Wachs eingebetteter vorgeformter Prothesenbasisrohling
JP7120506B2 (ja) * 2016-12-28 2022-08-17 三井化学株式会社 義歯床、義歯床の製造方法、有床義歯及び有床義歯の製造方法
DE102018101663B4 (de) * 2018-01-25 2020-12-31 Kulzer Gmbh Verfahren zur Herstellung einer Dentalprothese
DE102018101664B4 (de) * 2018-01-25 2019-08-14 Kulzer Gmbh Verfahren zur Herstellung einer Dentalprothese
EP3593757A1 (fr) * 2018-03-16 2020-01-15 Coredental Lab Yokohama Co., Ltd. Outil d'essayage et procédé de fabrication de prothèse dentaire
ES2913428T3 (es) * 2018-11-12 2022-06-02 Ivoclar Vivadent Ag Procedimiento de producción de prótesis dentales
JP2020199107A (ja) * 2019-06-11 2020-12-17 デンカ株式会社 仮入れ歯用義歯床、仮入れ歯、仮入れ歯用義歯床の製造方法及び入れ歯の製造方法
CN110428712B (zh) * 2019-08-02 2021-04-23 首都医科大学附属北京口腔医院 牙颌模型制作方法、牙颌模型及矫治力测量方法
CN111037808A (zh) * 2020-01-20 2020-04-21 湖南华曙高科技有限责任公司 一种鞋模及其制备方法

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Also Published As

Publication number Publication date
DE102013003913A1 (de) 2014-09-11
CN105208967A (zh) 2015-12-30
CN105208967B (zh) 2017-03-01
WO2014134640A1 (fr) 2014-09-12
JP2016513480A (ja) 2016-05-16
US20160000539A1 (en) 2016-01-07

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