WO1990011732A1 - Procede pour fabriquer une prothese dentaire totale ou partielle revetue, a souplesse permanente et a armature d'acier - Google Patents

Procede pour fabriquer une prothese dentaire totale ou partielle revetue, a souplesse permanente et a armature d'acier Download PDF

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Publication number
WO1990011732A1
WO1990011732A1 PCT/EP1990/000549 EP9000549W WO9011732A1 WO 1990011732 A1 WO1990011732 A1 WO 1990011732A1 EP 9000549 W EP9000549 W EP 9000549W WO 9011732 A1 WO9011732 A1 WO 9011732A1
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WO
WIPO (PCT)
Prior art keywords
steel
prosthesis
retention
leg
soft
Prior art date
Application number
PCT/EP1990/000549
Other languages
German (de)
English (en)
Inventor
Horst Ludwigs
Original Assignee
Horst Ludwigs
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 Horst Ludwigs filed Critical Horst Ludwigs
Publication of WO1990011732A1 publication Critical patent/WO1990011732A1/fr

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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
    • A61C13/0025—Linings
    • 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

Definitions

  • the invention relates to a method for producing a permanently soft, steel-reinforced, total or partial dental prosthesis, which is relined with hot vulcanizing silicone rubber, and a dental prosthesis produced thereafter.
  • the soft relining silicones require processing temperatures of around 200 ° C to bring the chemical reactions to a complete conclusion and thus to obtain a physiologically absolutely safe and permanently soft vulcanizate that is completely free of harmful cleavage products.
  • the denture acrylics used and the acrylic teeth usually only reach temperatures of around 100 ⁇ C. Significantly higher temperatures lead to the destruction of the acrylic.
  • 100 ⁇ C is not sufficient to process the soft relining silicone in accordance with the specifications.
  • the relining material becomes brittle, brittle and loses its elasticity after a short time.
  • harmful fission products are to be expected, which will quickly question the physiological safety of the material.
  • the object of the invention is to provide a method to process the soft silicone rubber as relining at the required temperature of approx. 200 ⁇ C and to connect it to the steel reinforcement without the temperature-sensitive prosthetic resin and the plastic tooth having more than the previously usual temperature of approx. 100 ⁇ C.
  • This object is achieved in that the soft relining is vulcanized to the steel base in a separate process step at a temperature of approx. 200 ° C. and then the prosthesis plastic and the plastic teeth are fastened to the steel base in a known manner in a second process step.
  • the soft silicone rubber reaches the required processing temperature of approx. 200 ⁇ C,
  • the prosthetic resin is not exposed to more than 100 ° C,
  • the silicone rubber is free of fission products and therefore physiologically harmless
  • the silicone rubber is permanently elastic and shows no embrittlement due to aging
  • Softly lined prostheses have a reduced cross-section, hard plastic and thus reduced stability compared to all-plastic prostheses.
  • the steel reinforcement compensates for this disadvantage and increases the stability compared to all-plastic prostheses,
  • edge limitation and retention profile ensures a perfect transition at the seams between steel and soft silicone rubber and between steel and hard plastic
  • the retention openings in the profile provide additional hold for the soft vulcanizate for chemical adhesion to the steel
  • FIG. 1 is a perspective view of a jaw model with a jaw ridge
  • FIG. 2 shows a cross section in an enlarged representation of the jaw model with a relined dental prosthesis placed on the jaw ridge, according to section line I-I in FIG. 1,
  • Fig. 3 is a perspective view of a
  • Fig. 4 shows a cross section through the section "A" in an enlarged view in the connection of the soft relining and the prosthesis plastic with the finished steel edge profile integrated in the steel base.
  • (1) denotes a jaw model and (2) the jaw ridge on which the dental prosthesis according to the invention is placed.
  • This dental prosthesis is equipped with an edge profile (3) which is integrated into a steel plate (5) shaped according to the ridge (2) and forms the steel base (steel reinforcement) under which the permanently soft relining (6) made of silicone rubber vulcanizes and on which the prosthesis plastic (7) with the plastic Teeth (8) is vulcanized.
  • the relining (6) is vulcanized separately onto the steel base (3, 5) and the prosthesis plastic (7) with the plastic teeth (8) is only connected to the steel base (3, 5) after the relining (6) has been annealed .
  • the edge profile (3) is formed by an angle profile, the upright angle leg (9) of which forms the outer edge end leg and in whose horizontal leg (10) a recessed retention channel (anchoring channel) (11) is recessed following the upright leg (9) in which retention openings (12) in the form of square, round or oval openings are excluded at short intervals.
  • the angle leg (10) is formed thicker than the edge end leg (9) following the retention channel (11).
  • the edge closure leg (9) has a thickness of 0.5 mm
  • the horizontal leg (10) in the area of the retention channel (11) has a thickness of 0.5 mm
  • the horizontal leg (10) in connection with the retention channel ( 11) a thickness of 1 mm.
  • the steel plate (5) adjoins this horizontal leg (10) without a step.
  • the edge profile (3) has been deformed in the finished prosthesis in that the edge end leg (9) provides a curved outer edge for relining (6) and the prosthesis plastic (7) and the horizontal leg (10 ) is also domed.
  • This deformation of the edge profile (3) occurs during the introduction of the liquid steel into the form in which the steel base (5) with the integrated edge profile (3) is formed and forms a reinforcement unit, as shown in FIG.
  • the relining (6) engages in the retention openings (12) and in the retention channel (11) and thus has a secure anchorage with the edge profile (3) (cf. FIG. 4).
  • a normal functional impression required to produce a total or partial prosthesis can be assumed.
  • a functional model is created. The model is covered with wax in the exact thickness and extent that the soft silicone rubber (6) will take on the finished prosthesis.
  • the model is relined so that a negative form of the covered model is created.
  • the negative mold is filled with cast investment material, and an investment material model is created on which the steel reinforcement (3, 5) can be modeled directly.
  • a special profile (30) according to FIG. 3 is applied all the way around the entire edge of the prosthesis as a starting profile for bordering and for renting the soft solicon rubber (6), exactly following the contours that were previously created by the wax cover on the original model.
  • This profile (30) is made from cast wax that burns without residue or from plastic that burns without residue and later results in the formation of the special edge profile (3) made of steel.
  • This profile (30) adapts exactly to the shape of the impression and provides a clean, burr-free transition between the steel (3, 5) and the soft silicone rubber
  • the base area which is delimited by the peripheral edge profile (3), must be covered with a wax layer of approx. 0.5 mm and completely filled.
  • the investment material model prepared in this way is embedded in a casting muffle and the wax or the plastic of the edge profile (30) is burned out in the oven at approx. 300 ° C. Then it is heated to approx. 1000 ° C and the steel is thrown in.
  • the steel reinforcement (3, 5) is divested, sandblasted and polished.
  • the steel reinforcement (3, 5) is placed on the original model covered with wax and the retention channel (11) of the edge profile (3) is washed out with wax.
  • the model with the steel plate (3, 5) is embedded in a cuvette, then heated to approx. 100 ° C and the wax is brewed.
  • the steel reinforcement (3, 5) is removed from the cuvette and either silanized or pinselt, Rose ⁇ at the points at which the soft relining (6) to be adhered with an adhesion promoter, drying the ⁇ at about 130 C.
  • the steel plate (3, 5) is put back into the cuvette and the required amount is placed with the soft silicone rubber (6).
  • the cuvette is closed and pre-pressed under a pressure of approx. 5000 kp. After a short time, the cuvette is opened again and any parts of the soft silicone (6) that are missing are added.
  • the silicone rubber (6) extends under the steel base (3, 5) and in the retention openings (12) and the retention channel (11).
  • the cuvette is finally closed and vulcanized in the hot air cabinet at approx. 135 ⁇ C for one hour.
  • the cuvette is then opened, but the denture base has not yet been removed.
  • the opened half of the cuvette is now annealed at about 200 ° C for about four hours. This completes the chemical process to optimize the material. Only now is the soft silicone rubber (6) able to develop its optimal properties:
  • the soft-lined, steel-reinforced prosthesis base (3, 5, 6) made in this way is placed on the original model and cold or hot-polymerizing plastic can be used to complete the prosthesis using a conventional method, for its further processing a temperature of max . 100 ° C is absolutely sufficient.

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 Prosthetics (AREA)

Abstract

Dans une première étape distincte, le revêtement de caoutchouc siliconé à souplesse permanente (6) est vulcanisé sur une base d'acier (3, 5) à une température d'environ 200°C. Dans une deuxième étape, le plastique de la prothèse (7) et les dents (8) sont montés sur la base d'acier (3, 5) à une température d'approximativement 100°C. On obtient alors une prothèse physiologiquement sans danger avec un revêtement fixé à demeure et dépourvu de produits de clivage.
PCT/EP1990/000549 1989-04-08 1990-04-06 Procede pour fabriquer une prothese dentaire totale ou partielle revetue, a souplesse permanente et a armature d'acier WO1990011732A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19893911520 DE3911520A1 (de) 1989-04-08 1989-04-08 Verfahren zur herstellung einer stahlarmierten, dauerhaft weichbleibend unterfuetterten totalen oder partiellen zahnprothese und nach dem verfahren hergestellte zahnprothese
DEP3911520.8 1989-04-08

Publications (1)

Publication Number Publication Date
WO1990011732A1 true WO1990011732A1 (fr) 1990-10-18

Family

ID=6378219

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/000549 WO1990011732A1 (fr) 1989-04-08 1990-04-06 Procede pour fabriquer une prothese dentaire totale ou partielle revetue, a souplesse permanente et a armature d'acier

Country Status (2)

Country Link
DE (1) DE3911520A1 (fr)
WO (1) WO1990011732A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048434A1 (fr) * 1998-03-25 1999-09-30 Gilles Billet Armature en materiau composite pour une prothese dentaire adjointe, et procede de fabrication
GB2352402A (en) * 1999-06-07 2001-01-31 Frans Arthuur Benoit Dequeker Denture with a soft liner

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999037272A1 (fr) * 1998-01-22 1999-07-29 A. Kettenbach Fabrik Chemischer Erzeugnisse Dental-Spezialitäten Gmbh Und Co. Kg Materiau de rebasage pour prothese, et son procede de production
DE10009906C1 (de) * 2000-03-01 2001-06-07 Horst Ludwigs Zahnprothese
DE102007047301B4 (de) 2007-10-02 2022-01-13 Dreve Prodimed Gmbh Verwendung eines elastomeren Einkomponentenmaterials

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078207A (en) * 1964-01-08 1967-08-09 Dow Corning A method for preparing lined dentures
GB1346453A (en) * 1970-02-16 1974-02-13 Sandoz Ltd Artificial dentures
US3921292A (en) * 1974-02-22 1975-11-25 Wasil Ivchenko Method of bonding cured rubber and acrylic resin useable in making a composite denture prosthesis
WO1988003405A2 (fr) * 1986-11-06 1988-05-19 Schütz-Dental GmbH Element de liaison prothetique partiel en metal

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2509055A1 (de) * 1975-03-01 1976-09-02 Wasil Dr Ivchenko Gebissprothese und verfahren zu deren herstellung
DE3737438A1 (de) * 1986-12-02 1988-06-09 Wilfried Aichhorn Unterkiefer-zahnprothese und verfahren zu ihrer herstellung
DE8717432U1 (de) * 1987-04-25 1989-03-30 Michel, Uwe, 7085 Bopfingen Herausnehmbare Zahnprothesen mit kieferorthopädischen Teilen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1078207A (en) * 1964-01-08 1967-08-09 Dow Corning A method for preparing lined dentures
GB1346453A (en) * 1970-02-16 1974-02-13 Sandoz Ltd Artificial dentures
US3921292A (en) * 1974-02-22 1975-11-25 Wasil Ivchenko Method of bonding cured rubber and acrylic resin useable in making a composite denture prosthesis
WO1988003405A2 (fr) * 1986-11-06 1988-05-19 Schütz-Dental GmbH Element de liaison prothetique partiel en metal

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999048434A1 (fr) * 1998-03-25 1999-09-30 Gilles Billet Armature en materiau composite pour une prothese dentaire adjointe, et procede de fabrication
FR2776502A1 (fr) * 1998-03-25 1999-10-01 Gilles Billet Armature en materiau composite pour une prothese dentaire adjointe, et procede de fabrication
US6244869B1 (en) 1998-03-25 2001-06-12 Gilles Billet Frame made of composite material for a removable dental prosthesis, and manufacturing process
GB2352402A (en) * 1999-06-07 2001-01-31 Frans Arthuur Benoit Dequeker Denture with a soft liner
GB2352402B (en) * 1999-06-07 2003-11-12 Frans Arthuur Benoit Dequeker An appropriate functional design and construction of it for the useability of a complete denture

Also Published As

Publication number Publication date
DE3911520A1 (de) 1990-10-11

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