EP0593502A1 - Prothese dentaire - Google Patents

Prothese dentaire

Info

Publication number
EP0593502A1
EP0593502A1 EP92910974A EP92910974A EP0593502A1 EP 0593502 A1 EP0593502 A1 EP 0593502A1 EP 92910974 A EP92910974 A EP 92910974A EP 92910974 A EP92910974 A EP 92910974A EP 0593502 A1 EP0593502 A1 EP 0593502A1
Authority
EP
European Patent Office
Prior art keywords
crowns
primary
crown
bracket
titanium
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Withdrawn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
EP92910974A
Other languages
German (de)
English (en)
Inventor
Rainer Strutz
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.)
DENTALLABOR STRUTZ
Original Assignee
DENTALLABOR STRUTZ
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 DENTALLABOR STRUTZ filed Critical DENTALLABOR STRUTZ
Publication of EP0593502A1 publication Critical patent/EP0593502A1/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Withdrawn legal-status Critical Current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
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C5/00—Filling or capping teeth
    • A61C5/70—Tooth crowns; Making thereof
    • A61C5/73—Composite crowns
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys

Definitions

  • the invention relates to a denture according to the preamble of claim 1.
  • Known dental prostheses consist of a metallic bracket, which is made of a Cr-Co-Mo alloy, to which so-called secondary crowns consisting of noble metal, for example gold or a gold-containing alloy, are soldered, which in turn are used for telescopic placement on an identical material existing crowns are fixed using zinc phosphate cement firmly attached to a correspondingly machined tooth stump.
  • the system of the telescopic crowns is used to achieve a secure friction fit of the prosthesis, with the choice of material for the bracket mentioned providing sufficient rigidity and strength for the prosthesis.
  • the secondary rkronen serve as a carrier, for example made of plastic existing veneer, which is polymerized.
  • a disadvantage of these known prostheses is often the low resistance of the veneer to abrasive stress, so that their durability is often relatively limited.
  • Another disadvantage of some plastic veneers is their insufficient color consistency. Although a number of plastics to be used with improved properties have been developed which increase their abrasion resistance, this development cannot yet be concluded as a whole and is currently. are not yet considered satisfactory.
  • Another disadvantage of these known prostheses is the formation of gaps between metal and plastic veneer.
  • a telescopic prosthesis is known from DE 36 23 276 A1, the secondary part of which is designed as a one-piece casting made of a titanium-containing non-ferrous metal alloy. This one-piece design of the secondary part brings with it a number of advantageous properties, in particular a saving in labor and material costs. This is because the primary and secondary parts consist of an alloy and the aforementioned soldering process and the use of a noble metal are omitted.
  • the material titanium is on the one hand due to a large
  • a primary construction intended for use as a telescope base is also made in one piece and is made of a uniform metallic material, namely titanium. Regarding durability, workability and carrying properties result in similar advantages as in the associated secondary construction according to claim 1.
  • a ceramic veneer according to the features of claim 4 is distinguished from plastic veneers by a high resistance to abrasive stress and thus an improved durability. It is also of high color fastness.
  • the dentures according to the invention improve in terms of durability and color consistency compared to the prior art described at the same time and at the same time inexpensively dentures that can be produced.
  • the features of claim 5 are directed to the attachment of the primary crown of the dental prosthesis, the secondary crown being frictionally attached to the primary crown.
  • An implant screw connection is provided for the primary crown, via which it is in a fixed, immovable connection with the jawbone.
  • the features of claim 6 are directed to a variant of the primary construction, in which the former of bone skin and gums is overlaid.
  • FIG. 1 shows a partial view of the tooth arrangement of a jaw before the insertion of a prosthesis according to the invention
  • FIG. 2 is a view corresponding to FIG. 1 with the prosthesis inserted
  • FIG. 3 shows a sectional illustration of a tooth of the prosthesis according to the invention
  • FIG. 5 shows a cross-sectional illustration of a primary construction with a secondary construction attached
  • Fig. 6 is a cross-sectional view of a variant of a primary structure with a secondary structure attached.
  • FIG. 1 shows a schematic representation of a tooth arrangement 1 prepared in a conventional manner for the purpose of inserting a prosthesis are covered with the primary crowns 2.
  • These immovable primary crowns 2 are made from a metallic material, here from titanium.
  • the prosthesis consists of a metallic, approximately U-shaped bracket 3 which extends laterally at least to the area of the secondary crowns 4 and carries the secondary crowns 4 at these locations.
  • the secondary crowns 4 form the connecting link to the primary crowns, which acts in terms of friction.
  • the bracket 3 with the secondary crowns 4 is made of titanium and, according to the invention, is formed in one piece by casting.
  • the secondary crowns 4 in turn serve as carriers for a facing 5, which is made of a ceramic material and is burned onto the outside of the secondary crown 4.
  • the chewing pressure is distributed to the primary crown and mucous membrane through a gap 6 of approximately 0.4 mm and the ground tooth stump is relieved accordingly.
  • the subject matter of the invention can be removed from the primary crowns, in any embodiment, while maintaining the principle of temple 3 and secondary crowns 4, which is characterized by a one-piece design. Due to the special properties of the material used to manufacture the bracket 3, in particular with regard to strength and elasticity, the system of bracket 3 and secondary cranes 4 can be designed to be comparatively low in mass with high rigidity, resulting in inexpensive modeling options and thus a high degree of design freedom the formation of the cover 5 result.
  • FIG. 7 denotes a stirrup which has a U-shaped shape which forms a closed turn, the mutually opposite turns of which are formed by a series of U för ig trained, extending perpendicular to the base plane of the bracket 7 webs 8 are bridged.
  • Some of these webs 8 have primary crowns 9, the crown base of which has a fillet 10.
  • the bracket 7 is tight, i.e. without a gap on the jawbone 11.
  • the webs 8, which carry the primary crowns 9, bridge the jaw bone 11 so far.
  • the aforementioned fillet 10 merges directly into the web 8 of the bracket 7.
  • the bracket 7 forms, together with the webs 8 and the primary crowns, a primary construction which is intended for use as a supperiosteal implant.
  • the bow 7 and the webs 8 are dimensioned such that they grip around the jawbone 11 in such a way that the bow and webs are overlaid on the top by the periosteum 12 and the gums 13.
  • the gums 13 lie here in the groove 10.
  • the entire primary construction consists of a uniform material and is designed as a cast part consisting of almost pure titanium (99.8%).
  • the secondary crown 14 again designates a secondary crown, which is designed and designed while leaving a gap 15 on the top for telescopic placement on the pri arkro ⁇ e 9.
  • the secondary ring 14 in turn forms a one-piece cast construction made of titanium with a bracket 16.
  • the number of secondary crowns 14 can be any number.
  • the secondary crown 14 in turn is in turn the carrier of a facing 17, which consists of a ceramic material.
  • a preferably made of PMMA (poly methacrylic acid methyl ester) is attached, the gum encompassing saddle 18, in which a part of the bracket 16 is integrated.
  • FIG. 6 again shows a secondary construction which is connected to a primary crown 19 in terms of friction.
  • an implant screw connection the screw 20 of which is made of titanium and is inserted on the outside into the primary crown 19, establishes the connection to the jaw bone 11.
  • the secondary construction is formed by a bridge, the bridge body or bracket 21 of which carries a series of secondary crowns 14. 15 in turn denotes the gap remaining between the primary crown and the secondary crown.
  • the primary crowns are intended for the telescopic placement of secondary structures, the secondary structures in turn being designed as one-piece castings and consisting of almost pure titanium.
  • Facing 17 here again preferably consists of a ceramic material.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dentistry (AREA)
  • Plastic & Reconstructive Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Prosthetics (AREA)

Abstract

Des prothèses dentaires destinées à être assujetties par friction à des couronnes primaires fixes comprennent un arceau sur lequel sont agencées des couronnes secondaires pouvant être enfichées télescopiquement sur les couronnes primaires et qui servent à leur tour de supports d'un revêtement. Les couronnes secondaires sont souvent des pièces coulées en un alliage dentaire approprié d'un bloc avec l'arceau. Afin d'augmenter la résistance, la durabilité et les propriétés de support d'une telle prothèse dentaire, le système formé par l'arceau (3) et les couronnes secondaires (4) est une seule pièce coulée en titane, alors que les couronnes secondaires (4) portent un revêtement en un matériau céramique. Cette prothèse a une résistance élevée, des couleurs solides et peut être fabriquée à un coût réduit.
EP92910974A 1991-06-19 1992-05-22 Prothese dentaire Withdrawn EP0593502A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4120132 1991-06-19
DE4120132A DE4120132C2 (de) 1991-06-19 1991-06-19 Zahnersatz
PCT/EP1992/001148 WO1992022261A1 (fr) 1991-06-19 1992-05-22 Prothese dentaire

Publications (1)

Publication Number Publication Date
EP0593502A1 true EP0593502A1 (fr) 1994-04-27

Family

ID=6434234

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92910974A Withdrawn EP0593502A1 (fr) 1991-06-19 1992-05-22 Prothese dentaire

Country Status (3)

Country Link
EP (1) EP0593502A1 (fr)
DE (1) DE4120132C2 (fr)
WO (1) WO1992022261A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2109890B1 (es) * 1996-03-15 1998-09-01 Invest Y Desarrollo Del Titani Sistema para la implantacion de protesis dentales fijas.
WO1997034543A1 (fr) * 1996-03-15 1997-09-25 Centro De Investigacion Y Desarrollo Del Titanio En Implantologia Oral, Sociedad Limitada Systeme d'implantation de protheses dentaires fixes
USD765856S1 (en) 2014-02-14 2016-09-06 Vita Zahnfabrik H. Rauter Gmbh & Co. Kg Dental implant

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2138224B1 (fr) * 1971-05-19 1973-05-11 Hubert Jean
SE448599C (sv) * 1985-07-24 1990-02-12 Inst Applied Biotechnology Anordning foer infaestning av ett flertal taender vid i tandbenet implanterade faestelement
DE3527668A1 (de) * 1985-08-01 1987-02-12 Joerg Hoellrigl Implantat fuer die befestigung eines zahnersatzes an einem kieferknochen
US4645453A (en) * 1985-09-19 1987-02-24 Niznick Gerald A Bendable adapter for dental implant
DE3623276A1 (de) * 1986-07-10 1988-01-28 Dieter Seffert Verfahren zur herstellung von teleskopprothesen im einstueckguss-verfahren und nach dem verfahren hergestellte teleskopprothesen
DE3811645A1 (de) * 1988-04-07 1989-10-26 Behnje Hans Joachim Verfahren zur herstellung von einstueckgussprothesen fuer den zahnersatz
US5006069A (en) * 1988-11-02 1991-04-09 Implant Innovations, Inc. Periodontal restoration components
ATE82476T1 (de) * 1988-12-31 1992-12-15 P C Dr Servin Schraubenimplantat zum verankern von prothetischen endkonstruktionen im mund.
US4931016A (en) * 1989-02-24 1990-06-05 Rannar Sillard Fixed removable dental implant system

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9222261A1 *

Also Published As

Publication number Publication date
DE4120132C2 (de) 1994-08-11
WO1992022261A1 (fr) 1992-12-23
DE4120132A1 (de) 1992-12-24

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