DE837288C - Process for the manufacture of dentures - Google Patents

Process for the manufacture of dentures

Info

Publication number
DE837288C
DE837288C DED498A DED0000498A DE837288C DE 837288 C DE837288 C DE 837288C DE D498 A DED498 A DE D498A DE D0000498 A DED0000498 A DE D0000498A DE 837288 C DE837288 C DE 837288C
Authority
DE
Germany
Prior art keywords
base
tooth
injection molding
dentures
manufacture
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.)
Expired
Application number
DED498A
Other languages
German (de)
Inventor
Dr August Dueppers
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
Priority to DED498A priority Critical patent/DE837288C/en
Application granted granted Critical
Publication of DE837288C publication Critical patent/DE837288C/en
Expired 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
    • A61C13/10—Fastening of artificial teeth to denture palates or the like
    • A61C13/1003—Fastening of artificial teeth to denture palates or the like by embedding in base material
    • A61C13/1006—Fastening of artificial teeth to denture palates or the like by embedding in base material characterised by a tooth shape which improves retention
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14311—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles using means for bonding the coating to the articles

Description

Bei der Herstellung von Zahnprothesen nach dem Spritzgußverfahren wurden bisher die Kunstzähne an den Stellen, wo sie mit der Prothesenbasis verbunden werden sollten, mit einem Binder bestrichen, der durch Erweichung der Oberfläche ein Verkleben der Zähne mit der Prothesenbasis bewirkte. In the manufacture of dentures using the injection molding process so far, the artificial teeth were in the places where they connected to the denture base should be coated with a binder, which by softening the surface caused the teeth to stick to the denture base.

Eine solche Bindung ist aber nicht absolut sicher zu erreichen, wenn sich auf der Prothesenbasis noch von der Modellierung herrührende Wachsreste befinden, und/oder wenn die Einwirkungsdauer des Binders nicht richtig eingehalten wird, die weder zu kurz noch zu lang sein darf. However, such a bond is not absolutely certain to achieve if there are still wax residues from the modeling on the denture base, and / or if the duration of action of the binder is not properly observed, the must be neither too short nor too long.

Um nun diese Unsicherheiten auszuschalten und eine absolut feste Verankerung zwischen Zahn und Prothesenbasirs zu erreichen, wird erfindungsgemäß das Spritzgußmaterial der Prothesenbasis an mit Höhlungen versehene künstliche Zähne angespritzt, derart, daß von außen in die Zähne führende Höhlungen bzw. Einschnitte, die miteinander in Verl>indung stehen, mit dem Spritzgußmaterial ausgefüllt werden. In order now to eliminate these uncertainties and an absolutely firm one Achieving anchoring between the tooth and the base of the prosthesis is according to the invention the injection-molded material of the denture base to cavitated artificial teeth molded in such a way that cavities or incisions leading into the teeth from the outside, which are linked to one another are filled with the injection molding material.

Beim Anspritzen des Basismaterials entweicht die Luft aus den Zahnhöhlungen und das Basismaterial verklammert sich absolut sicher mit dem Zahn. When the base material is injected, the air escapes from the tooth cavities and the base material clings to the tooth absolutely securely.

Gemäß der Erfindung besitzt ein für das Verfahren verwendeter Zahn in seiner Grundfläche eine Höhlung und auf seiner Rückseite einen Einschnitt oder mehrere Offnungen, die mit der Höhlung in der Grundfläche in Verbindung stehen. According to the invention has a tooth used for the method in its base a cavity and on its back an incision or several openings that are in communication with the cavity in the base.

- In der Zeichnung ist ein Beispiel des Erfindungsgegenstandes schematisch im Querschnitt dargestellt. - In the drawing, an example of the subject matter of the invention is schematic shown in cross section.

Abb. 1 veranschaulicht einen Zahn 1, der in seiner Grundfläche eine Höhlung 2 und an seiner Rückseite einen Einschnitt 3 besitzt; in Abb. 2 ist die Verankerung des Zahnes I mit der Prothesenbasis 4 dargestellt. Fig. 1 illustrates a tooth 1, which in its base a Cavity 2 and has a notch 3 on its rear side; in Fig. 2 is the Anchoring of the tooth I with the prosthesis base 4 is shown.

Beim Anspritzen der Basis füllen sich Höhlung 2 und Einschnitt 3 des Zahnes I mit dem Spritzgußmaterial, wobei die Luft in 2 und 3 entweichen kann, so daß eine absolut feste Verankerung des Zahnes I mit der Prothesenbasis 4 erfolgt. Durch die Konstruktion des Zahnes ist gleichzeitig gewährleistet, daß bei seiner Herstellung im Spritzgußverfahren wegen seiner gleichmäßigen Wandstärke eine Lunkerbildung weitgehend vermieden wird. When injecting the base, cavity 2 and incision 3 are filled of tooth I with the injection molding material, whereby the air can escape in 2 and 3, so that the tooth I is anchored absolutely firmly to the prosthesis base 4. The construction of the tooth also ensures that his Manufactured by injection molding because of its uniform wall thickness, voids are formed is largely avoided.

PTENTANSPRCHE: I. Verfahren zur Herstellung von Zahnprothesen nach dem Spritzgußverfahren, dadurch gekennzeichnet, daß das Spritzgußmaterial der Prothesenbasis an mit Höhlungen versehene künstliche Zähne angespritzt wird, derart, daß von außen in die Zähne führende, miteinander in Verbindung stehende Höhlungen bzw. Einschnitte mit dem Spritzgußmaterial ausgefüllt werden. PTENT CLAIMS: I. Process for the manufacture of dentures according to the injection molding process, characterized in that the injection molding material of the prosthesis base is injected onto artificial teeth provided with cavities, in such a way that from the outside intercommunicating cavities or incisions leading into the teeth be filled with the injection molding material.

Claims (1)

2. Künstlicher Zahn für das Verfahren nach Anspruch I, dadurch gekennzeichnet, daß der Zahn in seiner Grundfläche eine Höhlung und auf seiner Rückseite einen Einschnitt besitzt, der mit der Höhlung in Verbindung steht. 2. Artificial tooth for the method according to claim I, characterized in that that the tooth has a cavity in its base and an incision on its back which is in communication with the cavity.
DED498A 1949-12-08 1949-12-08 Process for the manufacture of dentures Expired DE837288C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DED498A DE837288C (en) 1949-12-08 1949-12-08 Process for the manufacture of dentures

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DED498A DE837288C (en) 1949-12-08 1949-12-08 Process for the manufacture of dentures

Publications (1)

Publication Number Publication Date
DE837288C true DE837288C (en) 1952-04-21

Family

ID=7028752

Family Applications (1)

Application Number Title Priority Date Filing Date
DED498A Expired DE837288C (en) 1949-12-08 1949-12-08 Process for the manufacture of dentures

Country Status (1)

Country Link
DE (1) DE837288C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439691A1 (en) * 1984-10-30 1986-04-30 Johann Georg 8000 München Modschiedler Dental prosthesis and method of producing it
US8070485B2 (en) 2004-09-14 2011-12-06 Dentsply International, Inc. Notched pontic and system for fabricating dental appliance for use therewith
EP3964164A1 (en) 2020-09-02 2022-03-09 Ivoclar Vivadent AG Method for producing a dental prosthesis, blank, and dental prosthesis
EP4134041A1 (en) 2021-08-10 2023-02-15 Ivoclar Vivadent AG Dental blank, dental partial prosthesis and method for manufacturing a dental partial prosthesis
EP4134042A1 (en) 2021-08-10 2023-02-15 Ivoclar Vivadent AG Dental blank forming block for a partial prosthesis, dental partial prosthesis and method for manufacturing a dental partial prosthesis

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3439691A1 (en) * 1984-10-30 1986-04-30 Johann Georg 8000 München Modschiedler Dental prosthesis and method of producing it
US8070485B2 (en) 2004-09-14 2011-12-06 Dentsply International, Inc. Notched pontic and system for fabricating dental appliance for use therewith
EP3964164A1 (en) 2020-09-02 2022-03-09 Ivoclar Vivadent AG Method for producing a dental prosthesis, blank, and dental prosthesis
EP4134041A1 (en) 2021-08-10 2023-02-15 Ivoclar Vivadent AG Dental blank, dental partial prosthesis and method for manufacturing a dental partial prosthesis
EP4134042A1 (en) 2021-08-10 2023-02-15 Ivoclar Vivadent AG Dental blank forming block for a partial prosthesis, dental partial prosthesis and method for manufacturing a dental partial prosthesis

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