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WO1997034543A1 - Systeme d'implantation de protheses dentaires fixes - Google Patents

Systeme d'implantation de protheses dentaires fixes Download PDF

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Publication number
WO1997034543A1
WO1997034543A1 PCT/ES1997/000053 ES9700053W WO9734543A1 WO 1997034543 A1 WO1997034543 A1 WO 1997034543A1 ES 9700053 W ES9700053 W ES 9700053W WO 9734543 A1 WO9734543 A1 WO 9734543A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
prosthesis
fixed
implants
pieces
Prior art date
Application number
PCT/ES1997/000053
Other languages
English (en)
Spanish (es)
Inventor
Mª Carmen GARCIA CASTILLO
Original Assignee
Centro De Investigacion Y Desarrollo Del Titanio En Implantologia Oral, Sociedad Limitada
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
Priority claimed from ES9600638A external-priority patent/ES2109890B1/es
Application filed by Centro De Investigacion Y Desarrollo Del Titanio En Implantologia Oral, Sociedad Limitada filed Critical Centro De Investigacion Y Desarrollo Del Titanio En Implantologia Oral, Sociedad Limitada
Publication of WO1997034543A1 publication Critical patent/WO1997034543A1/fr

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
    • A61C13/275—Fastening prostheses in the mouth removably secured by using bridging bars or rails between residual teeth
    • 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
    • A61C8/0001—Impression means for implants, e.g. impression coping

Definitions

  • Ectentialism, total or partial, is a very widespread problem among the population, whose effects have been tried to alleviate by incorporating prosthetic prostheses, having developed solutions ranging from removable prostheses to the incorporation of fixed dentures, in realization of the latter based on bridges that are held on natural teeth, which are still preserved, or by prostheses supported by clamping implants on the patient's own jaw.
  • This last solution consists in placing in the application jaw some small pieces by way of screws, of a material such as titanium, constituting the implants themselves, so that once the jaw accepts these implants, in what is known as osseointegration, on them are placed pieces called pillars, on which the corresponding prosthesis will subsequently be seated and fastened.
  • the prosthetic cannot work I directly over the patient's mouth to carry out the preparation of the prosthesis, whereby a master model, plaster or similar material is made, in reproduction of the jaw on which the implants are incorporated, to determine in said master model the exact position of the abutments of the implants incorporated in the maxilla, being carried out on that reproduction the development of the operations aimed at the elaboration of the prosthesis.
  • the conventional solution to carry out this process is to take an impression of the jaw, after the incorporation into it of the implants destined to hold the prosthesis, to obtain the master model from plaster.
  • small gold cylinders are incorporated on said "replicas" of the master model, modeling on them a wax structure, which is subsequently replaced by a metal alloy by means of a lost wax casting process, obtaining with it the base frame for the incorporation of the dental pieces of the prosthesis, by means of a suitable coating, based on ceramic, composite, etc. 5
  • That method has the disadvantage that the process casting, to obtain the metal alloy structure, produces contractions and dilations, whereby the accuracy of the seats determined by the gold cylinders in the positioning obtained from the master model is lost.
  • a frame is thus obtained that serves as a basis for the formation or incorporation of the incorporating block of the corresponding dental pieces, said framework being with its seats in the exact position obtained on the "replicas" of the master model and therefore with respect to the pillars of the implants incorporated in the patient's jaw.
  • titanium in the constituent block of the prosthesis frame, as well as in the implants incorporated in the jaw, confers in turn a series of advantages over the conventional system 5 that uses gold cylinders for the seats and an alloy of lower melting point for the frame made by casting, since titanium offers the following advantages over other materials: -Low specific weight. 0 -It is radiologically transparent. -Small thermal conductivity. -It looks metallic.
  • the construction of the prosthesis frame can also be carried out, according to the same system of the invention by placing parts intended to constitute the seats, on the "replicas" of the master model, incorporating on said pieces some calcinable elements, for the determination of a block of wax on the assembly , from whose block the pieces of the seats are then removed, transforming the wax into titanium by casting the lost wax, so that on the resulting metal block the pieces of the seats are then incorporated, which are fixed by laser welding.
  • Figure 1 represents a detail of the incorporation of an implant (2) for fastening a fixed dental prosthesis.
  • Figure 2 is a detail like the previous one, with the maxilla (1) of application already osseointegrated on the implant (2).
  • Figure 3 is a representation of the same detail above, with the incorporation of the corresponding implant abutment (3) for the attachment of the prosthesis to be incorporated.
  • Figure 4 is the same detail above, with the incorporation of a dental piece (4) on the abutment (3) of the implant (2).
  • Figure 5 is a detail showing the incorporation of a "copin" of transfer (5) on a pillar (3) for holding the prosthesis to be performed.
  • Figure 6 represents in perspective a bucket
  • Figure 7 is a perspective of the block (7) in which the transfer copins remain when the impression of the jaw is taken.
  • Figure 8 is a perspective of the master model
  • Figure 9 represents the construction of a structural structural assembly, based on two columns (10) and a bridge (11), according to the system recommended.
  • Figure 10 corresponds to a representation like the previous one, indicating the elimination of excess material from the columns (10).
  • Figure 11 is a representation like that of Figure 9, according to an example of practical embodiment for the fixation of the prosthesis on the implants by cementing.
  • Figure 12 is a representation showing the incorporation of the dental pieces (4) on a support frame already made.
  • Figures 13 to 15 represent configurative designs of the "replicas" (8), according to non-limiting examples.
  • Figures 16 to 18 represent respective possible configurations of the bridges (11) between the columns (10), according to non-limiting examples.
  • Figure 19 represents a piece (14) provided for the realization of removable prostheses removable on a fixed bridge.
  • Figures 20 and 21 are two non-limiting examples of cones (13) for fixing the prosthesis by cementing according to Figure 11.
  • Figure 22 is a representation showing the placement of seat pieces (15), with calcinable elements (17), on the replicas (8) of the master model (9) for the realization of the prosthesis frame by means of a cast block .
  • Figure 23 is a representation of the same previous set, with the calcinable elements (17) of the different pieces (15) joined together.
  • Figure 24 shows the configuration of the prosthesis block on the anterior assembly, by means of a wax block (19).
  • Figure 25 is a representation of the previous assembly with the wax block (19) devoid of the dental pieces (4) and dotted with granules (21) of calcinable plastic.
  • Figure 26 is a perspective of the wax block (19) without the seat parts (15).
  • Figure 27 is a perspective of the titanium block (20) obtained from the wax block (19), with the seat pieces (15) fixed in the corresponding fittings.
  • the invention relates to a system for the implantation of fixed dental prostheses, starting from the conventional procedure that consists in placing in the jaw (1) of the patient some pieces (2) of titanium, as screws, by means of which some are constituted Implants that can be considered as new dental roots to hold the prostheses to be placed. After a period of osseointegration, the aforementioned implants (2) remain part of the jaw (1), and then, by means of another operation, extensions (3), also of titanium, which constitute pillars, are placed on said implants (2). of seat for the incorporation of the prostheses.
  • the prosthesis to be placed includes multiple dental pieces (4)
  • its installation is carried out incorporating only some implants (2) for the subjection of the whole set, the dental pieces (4) being arranged on a bearing block which is the one that it is held on the implants (2), so that in a maxillary (1) totally edentulous, with five or six implants (2) they are sufficient for the subjection of the complete prosthesis.
  • the preparation of the prostheses must therefore be carried out on a direct reference of the seating points on the abutments (3) of the implants (2) incorporated in the patient's mouth, in order to achieve what is called “adjustment passive "with respect to the mentioned seating points, that is to say that when the prosthesis is placed, its arrangement coincides in perfect fit over all the seating points.
  • a conventional procedure which consists in taking an impression that reflects the exact arrangement of the abutments (3) of the implants (2) in the jaw (1) of the patient; for which, on the pillars (3) transfer pieces (5), called “copins” are incorporated preceeding to take an impression by means of a tray (6) filled with a semi-directed material (7), such as silicone or similar, of so that the "copins” (5) are embedded in said material (7), keeping exactly the same arrangement as in the patient's mouth.
  • a semi-directed material (7) such as silicone or similar
  • parts (8) are coupled, which constitute exact “replicas” of the pillars (3) of the patient's mouth, corresponding to the arrangement of said pillars (3), due to the positioning determined by the transfer copins (5).
  • a block (9) is obtained, in which the "replicas” (8) are fixedly included, constituting what can be considered a master model similar to the maxilla (1) of the patient, corresponding to the "replicas” (8) in an exact manner with the abutments (3) of the implants (2), whereby said "replicas” (8) serve as exact reference points for making the prosthesis.
  • said preparation of the prosthesis from said master model constituted by the block (9) provided with the "replicas” (8) is carried out, in accordance with one embodiment, in the following manner: On the replicas ( 8), which can be of various shapes, respective pieces (10) are held as columns, which are then joined by bridges (11) that are laser welded to said parts (10), thus obtaining a framework in which the columns (10) constitute exact seats to coincide with "passive adjustment” on the abutments (3) of the implants (2) of the patient's mouth.
  • Both the columns (10) and the bridges (11) are also provided with titanium, and the columns (10) can be of any shape and size that favors their manipulation and the arrangement for joining the bridges (11), so that, once the assembly of the assembly has been carried out by means of the necessary welds, the columns (10) can be cut to eliminate the material that is not necessary.
  • the framework thus formed is totally unalterable in its form by manipulations, due to the strength of the material of the component parts and the consistency of the joint welds, not producing heating capable of causing deformation stresses, while the monometal titanium assembly results from uniform contractions that do not cause tensions, so that the arrangement of the seats determined by the columns (10) remains unchanged according to the reference of the "replicas" (8), in correspondence with the arrangement of the pillars ( 3) of the implants (2) in the patient's mouth.
  • the bridges (11) can be a regular or irregular section, with only the need for the length to be adjusted to the separation between the columns (10) to be joined.
  • the frame formed by the columns (10) and the bridges (11), serves as the basis for the arrangement of the dental pieces (4) to be incorporated by the prosthesis, which can be incorporated individually or in block, by means of a metal support which is fixed by laser welding and then coated with a layer of ceramic, composite, etc.
  • the prosthesis block that is thus obtained is Mford., registration PCT / ES97 / 00053 97/34543
  • the fastening can be established directly by means of screws (12), or by including intermediate cones (13) that are fixed cemented to the columns (10) and which are the ones that in this case determine the seats on the pillars (3) of the implants (2).
  • screws (12) For the securing of the fixing screws (12), it is planned to incorporate them with a gold washer, which, being a softer metal than titanium, is compressed when the tightening is done, acting as a medium insurer against loosening.
  • the metal support frame on the implants (2) can be made based on a cast titanium block, with determining parts (15) of the seats on the pillars (3) incorporated in a false manner.
  • a wax covering (19) is carried out, in which the dental pieces (4) are incorporated, located so as not to interfere with the elements (17), whereby an apparent set is obtained of the prosthesis to be performed, in which the wax (19) acts as a holding block for the dental pieces (4).
  • the dental pieces (4) are then removed, proceeding with a modeling of the wax block (19), to remove the material that is not necessary, while smoothing the outer surface; after which the block (19) is released from the "replicas” (8), the pieces (15) being removed from the seats.
  • the wax block (19) is then transformed into titanium, by means of a lost wax casting, thus obtaining a metal block (20) similar to the previous block (19) of wax, in which coinciding with the preexistence of the calcinable elements (17) there are corresponding holes, in which the parts (15) of the seats are fixed by laser welding, which remain in the same arrangement as they were stored in the wax block (19), since the corresponding fittings are defined precisely because of the placement of those same pieces (15) in that situation.
  • the block (20) thus constitutes a rigid and resistant frame, on which the prosthesis configuration with incorporation of the corresponding dental pieces (4) can be made by composite or other suitable material, leaving the assembly provided with seats defined by the pieces (15) in an arrangement to adjust with due accuracy the abutments (3) of the implants (2) in the jaw (1) of application.
  • the accuracy of the adjustments can be verified on the "replicas" (8) of the master molding (1), or even on the pillars themselves (3 ) of the implants (2) in the patient's mouth, so that if there is any deviation in the adjustment of any of the seats, a correction can be carried out by cutting the block (20) and re-joining its parts by laser welding in the right position.

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)
  • Orthopedic Medicine & Surgery (AREA)
  • Dental Prosthetics (AREA)

Abstract

Système d'implantation de prothèses dentaires fixes, partant d'un modèle maître (9) qui reproduit le maxillaire (1) du patient, et comprenant des 'répliques' (8) qui correspondent aux pivots (3) des implants (2) incorporés dans le maxillaire (1); on dispose sur lesdites 'répliques' (8) des colonnes (10) en titane qui sont jointes par des ponts (11) également en titane et fixés par soudure laser auxdites colonnes (10) afin de constituer une structure qui sert de base à la construction et à l'ancrage de la prothèse; la structure peut être réalisée à partir d'un block en titane (20) obtenu par coulée à la cire perdue à partir d'un bloc de cire (19), en incorporant dans ledit bloc (20) des fausses pièces (15) déterminants les sièges, en fixant lesdites pièces par soudure laser dans les trous correspondants laissés par des éléments (17) se calcinant lors de la coulée.
PCT/ES1997/000053 1996-03-15 1997-03-07 Systeme d'implantation de protheses dentaires fixes WO1997034543A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
ES9600638A ES2109890B1 (es) 1996-03-15 1996-03-15 Sistema para la implantacion de protesis dentales fijas.
ESP9600638 1996-03-15
ES9601471A ES2117947B1 (es) 1996-03-15 1996-06-02 Perfeccionamientos en el objeto de la patente principal n. 9600638 por "sistema para la implantacion de protesis dentales fijas".
ESP9601471 1996-07-02

Publications (1)

Publication Number Publication Date
WO1997034543A1 true WO1997034543A1 (fr) 1997-09-25

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES1997/000053 WO1997034543A1 (fr) 1996-03-15 1997-03-07 Systeme d'implantation de protheses dentaires fixes

Country Status (1)

Country Link
WO (1) WO1997034543A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825614A1 (fr) * 2001-06-11 2002-12-13 Vincent Bennani Methode d'elaboration d'une armature montee sur implants adaptee pour supporter une prothese dentaire
WO2005060862A1 (fr) * 2003-12-22 2005-07-07 Nobel Biocare Ab (Publ) Procede et dispositif d'orientation d'un bridge par rapport a un implant dentaire
ITTO20090158A1 (it) * 2009-03-03 2010-09-04 Marco Bevilacqua Sovrastruttura per un sistema di protesi dentale mascellare completa e relativo metodo di fabbricazione
US20210205051A1 (en) * 2019-11-06 2021-07-08 Dental Vision B.V. Dental prosthetic system with a bridge structure that can be removed from a base structure

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990005499A1 (fr) * 1988-11-24 1990-05-31 Titanbron I Åhus AB Dispositif pour supporter des dents artificielles dans une machoire et procede pour sa fabrication
US4931016A (en) * 1989-02-24 1990-06-05 Rannar Sillard Fixed removable dental implant system
DE4120132A1 (de) * 1991-06-19 1992-12-24 Strutz Dentallabor Zahnersatz
US5234339A (en) * 1991-02-14 1993-08-10 Kulzer, Inc. Implant supported prosthesis
WO1994014388A1 (fr) * 1992-12-22 1994-07-07 Paolo Bruschelli Procede de fabrication de protheses implantables et dispositif pour sa mise en ×uvre
WO1994027522A1 (fr) * 1993-05-27 1994-12-08 Hansen Gorm P Erik Systeme de renforcement d'implants dentaires
WO1996037160A1 (fr) * 1995-05-23 1996-11-28 Nobel Biocare Ab (Publ) Procede et moyens de prise d'empreintes pour realiser une prothese dentaire montee sur un implant

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1990005499A1 (fr) * 1988-11-24 1990-05-31 Titanbron I Åhus AB Dispositif pour supporter des dents artificielles dans une machoire et procede pour sa fabrication
US4931016A (en) * 1989-02-24 1990-06-05 Rannar Sillard Fixed removable dental implant system
US5234339A (en) * 1991-02-14 1993-08-10 Kulzer, Inc. Implant supported prosthesis
DE4120132A1 (de) * 1991-06-19 1992-12-24 Strutz Dentallabor Zahnersatz
WO1994014388A1 (fr) * 1992-12-22 1994-07-07 Paolo Bruschelli Procede de fabrication de protheses implantables et dispositif pour sa mise en ×uvre
WO1994027522A1 (fr) * 1993-05-27 1994-12-08 Hansen Gorm P Erik Systeme de renforcement d'implants dentaires
WO1996037160A1 (fr) * 1995-05-23 1996-11-28 Nobel Biocare Ab (Publ) Procede et moyens de prise d'empreintes pour realiser une prothese dentaire montee sur un implant

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2825614A1 (fr) * 2001-06-11 2002-12-13 Vincent Bennani Methode d'elaboration d'une armature montee sur implants adaptee pour supporter une prothese dentaire
WO2002100290A1 (fr) * 2001-06-11 2002-12-19 Vincent Bennani Methode d'elaboration d'une armature de support d'une prothese dentaire, guide chirurgical utilisable et armature obtenue
WO2005060862A1 (fr) * 2003-12-22 2005-07-07 Nobel Biocare Ab (Publ) Procede et dispositif d'orientation d'un bridge par rapport a un implant dentaire
US7845946B2 (en) 2003-12-22 2010-12-07 Nobel Biocare Services Ag Method and arrangement for orienting a bridge in position relative to a dental implant
KR101104866B1 (ko) * 2003-12-22 2012-01-17 노벨 바이오케어 서비시스 아게 치아 임플란트에 관한 위치에서 브리지를 고정하기 위한 배치물
ITTO20090158A1 (it) * 2009-03-03 2010-09-04 Marco Bevilacqua Sovrastruttura per un sistema di protesi dentale mascellare completa e relativo metodo di fabbricazione
WO2010100163A2 (fr) 2009-03-03 2010-09-10 Tiziano Tealdo Superstructure pour un système de prothèse dentaire et procédé de fabrication correspondant
WO2010100163A3 (fr) * 2009-03-03 2010-11-04 Tiziano Tealdo Superstructure pour un système de prothèse dentaire et procédé de fabrication correspondant
US20210205051A1 (en) * 2019-11-06 2021-07-08 Dental Vision B.V. Dental prosthetic system with a bridge structure that can be removed from a base structure

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