FR2878732A1 - Prosthetic assembly for use in dental implantology, has cylindro-conical abutment, dental implant, and additional screw screwed along inner threading to block head of connecting screw by creating support force on head - Google Patents
Prosthetic assembly for use in dental implantology, has cylindro-conical abutment, dental implant, and additional screw screwed along inner threading to block head of connecting screw by creating support force on head Download PDFInfo
- Publication number
- FR2878732A1 FR2878732A1 FR0412873A FR0412873A FR2878732A1 FR 2878732 A1 FR2878732 A1 FR 2878732A1 FR 0412873 A FR0412873 A FR 0412873A FR 0412873 A FR0412873 A FR 0412873A FR 2878732 A1 FR2878732 A1 FR 2878732A1
- Authority
- FR
- France
- Prior art keywords
- screw
- prosthetic assembly
- head
- connecting screw
- abutment
- 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- Withdrawn
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
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
-
- 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
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0054—Connecting devices for joining an upper structure with an implant member, e.g. spacers having a cylindrical implant connecting part
-
- 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
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/006—Connecting devices for joining an upper structure with an implant member, e.g. spacers with polygonal positional means, e.g. hexagonal or octagonal
-
- 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
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
-
- 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
- A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
- A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
- A61C8/0071—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection with a self-locking taper, e.g. morse taper
Abstract
Description
Pilier et Moignon à filetage interne et vis supplémentaire Pillar and abutment with internal thread and additional screw
La présente invention concerne un ensemble prothétique dans le domaine de l'implantologie dentaire, et plus particulièrement les piliers trans-vissés et les moignons de cicatrisation, et il s'agit d'un dispositif comprenant un pilier ou un moignon qui présente une structure anti-rotative pour accueillir un instrument de manoeuvre, et un filetage interne, et comprenant également une vis supplémentaire qui est destinée à ce filetage interne et servant à bloquer la vis de liaison classique, empêchant cette dernière de se dévisser. The present invention relates to a prosthetic assembly in the field of dental implantology, and more particularly to trans-screw abutments and healing abutments, and it is a device comprising a pillar or a stump which has an anti-corrosive structure. -rotative to accommodate an operating instrument, and an internal thread, and also comprising an additional screw which is intended for this internal threading and serving to block the conventional connecting screw, preventing the latter from unscrewing.
De façon classique, les piliers prothétiques ou moignons de cicatrisation en implantologie comprennent une gaine en alliage de métal ou en céramique, et une vis de liaison qui vient bloquer ce pilier ou moignon en le traversant pour se visser dans l'implant. In conventional manner, prosthetic or abutment abutments in implantology comprise a sheath of metal alloy or ceramic, and a connecting screw that blocks the abutment or stump by passing through to screw into the implant.
Il y a donc une mise en tension de cette vis de liaison et la pérennité de cette fixation est dépendante de la surface de friction entre l'extrémité inférieur de la vis et une zone à l'extrémité inférieur du pilier ou moignon. Cette vis de liaison comporte donc un corps fileté pour se fixer à l'implant et une tête généralement cylindrique présentant à son extrémité inférieure une surface de friction avec l'extrémité inférieure du pilier et à son extrémité supérieure une structure anti- rotative interne pour accueillir un instrument de manoeuvre tels que tournevis ou mandrin par exemple. There is therefore a tensioning of the connecting screw and the durability of this attachment is dependent on the friction surface between the lower end of the screw and an area at the lower end of the pillar or stump. This connecting screw therefore comprises a threaded body for attachment to the implant and a generally cylindrical head having at its lower end a friction surface with the lower end of the pillar and at its upper end an internal anti-rotating structure to accommodate an operating instrument such as screwdriver or chuck for example.
L'inconvénient d'un tel dispositif est que la tête de la vis de liaison n'est bloquée par aucun autre élément. Par conséquent la vis peut se desserrer ou se dévisser sous l'action des forces de mastication ou autres. Ce dévissage entraîne une mobilité du pilier ou du moignon créant un inconfort pour le patient, une prolifération de gencive dans l'espace nouvellement apparu entre l'implant et le pilier ou moignon, la mobilité pouvant entraîner une fracture de l'implant, voir la perte de l'implant car le pilier ou moignon est de ce fait de plus en plus sollicité par les forces de mastication qui agissent sur le pilier ou moignon directement ou à travers les prothèses ou appareils dentaires. The disadvantage of such a device is that the head of the connecting screw is not blocked by any other element. Therefore the screw can loosen or unscrew under the action of chewing forces or the like. This unscrewing causes a mobility of the abutment or stump creating discomfort for the patient, a proliferation of gingiva in the newly emerging space between the implant and the abutment or stump, mobility can cause fracture of the implant, see the loss of the implant because the pillar or stump is therefore increasingly solicited by chewing forces that act on the abutment or stump directly or through the prostheses or dental appliances.
Pour éviter cet inconvénient de dévissage, plusieurs solutions ont été proposées qui se limitent à la modification de la vis de liaison classique. To avoid this disadvantage of unscrewing, several solutions have been proposed which are limited to the modification of the conventional connecting screw.
Parmi ces solutions, nous pouvons citer l'utilisation d'une vis de liaison recouverte d'or pour augmenter la friction de serrage, solution qui n'est pas économique. Among these solutions, we can mention the use of a gold-coated bonding screw to increase clamping friction, a solution that is not economical.
Une autre solution consiste à prévoir une adaptation en cône morse à la base de la tête de la 30 vis de liaison, cette base est de petite taille et la friction supplémentaire obtenue n'est pas assez importante. Another solution is to provide Morse taper adaptation at the base of the bonding screw head, this base is small and the additional friction obtained is not large enough.
Toutes ces solutions ne garantisse pas un résultat fiable sur plusieurs années et dans ce contexte, la présente invention propose une nouvelle solution, simple et économique pour empêcher la vis de liaison de se dévisser. All these solutions do not guarantee a reliable result over several years and in this context, the present invention proposes a new solution, simple and economical to prevent the connecting screw from being unscrewed.
Plus particulièrement l'invention propose un dispositif comprenant un pilier ou moignon et une vis supplémentaire qui se visse le long de ce filetage pour venir bloquer la tête de la vis de liaison en s'appuyant dessus. More particularly, the invention provides a device comprising a pillar or stump and an additional screw which is screwed along this thread to come block the head of the connecting screw by leaning on it.
Ainsi selon l'invention, la vis supplémentaire pouvant coulisser le long du filetage interne du pilier ou du moignon est mise en tension par serrage et elle crée une force d'appui dirigée contre la tête de la vis de liaison empêchant cette dernière d'effectué une rotation dans le sens du dévissage. Ce dispositif s'applique bien entendu à toutes sortes de piliers ou de moignons de cicatrisation, à toutes sortes d'implants et leur système de connectique, et aux deux variantes de connexion connues, c'est à dire avec ou sans une structure antirotative placée à la base du pilier ou moignon. Thus according to the invention, the additional screw slidable along the internal thread of the abutment or stump is tensioned by clamping and creates a bearing force directed against the head of the connecting screw preventing the latter from being effected. a rotation in the direction of unscrewing. This device applies, of course, to all kinds of abutments or healing stumps, to all kinds of implants and their connector system, and to the two known connection variants, ie with or without an anti-rotating structure placed at the base of the pillar or stump.
La description qui va suivre va expliquer brièvement le mode d'utilisation de ce dispositif. The description which follows will briefly explain the mode of use of this device.
Le pilier ou moignon est fixé à l'implant de façon classique grâce à la vis de liaison qui est mise en tension par un instrument de manoeuvre tels que tournevis, mandrin monté sur contre angle ou clé à cliquet. La vis supplémentaire est ensuite vissée et coulisse le long du filetage prévu a cette intention pour venir s'appuyer contre la vis de liaison. De cette façon le pilier ou moignon est maintenu fermement dans sa position car la vis supplémentaire coulissante, étant mise en tension à son tour par serrage avec les mêmes instruments classiques que pour la vis de liaison, empêche cette dernière d'effectuer une rotation dans le sens du dévissage. The abutment or abutment is attached to the implant in a conventional manner thanks to the connecting screw which is tensioned by an operating instrument such as screwdriver, chuck mounted on a corner angle or ratchet. The additional screw is then screwed and slides along the thread provided for this purpose to come to rest against the connecting screw. In this way the pillar or stump is held firmly in its position because the additional sliding screw, being tensioned in turn by clamping with the same conventional instruments as for the connecting screw, prevents the latter from rotating in the sense of unscrewing.
La description qui va suivre en regard des dessins annexés, donnés à titre d'exemples non limitatifs, fera comprendre en quoi consiste l'invention et comment elle peut être réalisée. The following description with reference to the accompanying drawings, given as non-limiting examples, will explain what the invention is and how it can be achieved.
Sur les dessins annexés: la figure 1 est une vue en coupe axiale d'un premier mode de réalisation d'un dispositif (100) selon l'invention, présentant un pilier cylindro-conique (110), avec sa structure antirotative (150), avec son filetage interne (120), sa vis de liaison (130), et sa vis supplémentaire (140), prévu pour un implant à structure antirotative externe tel que hexagone externe par exemple. In the accompanying drawings: FIG. 1 is a view in axial section of a first embodiment of a device (100) according to the invention, having a cylindro-conical pillar (110), with its antirotative structure (150). , with its internal thread (120), its connecting screw (130), and its additional screw (140), provided for an external anti-rotation structure implant such as external hexagon for example.
la figure 2 est une vue en coupe axiale d'un deuxième mode de réalisation d'un dispositif (100) selon l'invention, présentant un moignon de cicatrisation cylindrique (110), avec sa structure anti- rotative (150), avec son filetage interne (120), sa vis de liaison (130), et sa vis supplémentaire (140) prévu pour un implant à structure antirotative externe. FIG. 2 is a view in axial section of a second embodiment of a device (100) according to the invention, having a cylindrical healing stump (110), with its antirotation structure (150), with its internal thread (120), its connecting screw (130), and its additional screw (140) provided for an external anti-rotating structure implant.
la figure 3 est une vue en coupe axiale d'un troisième mode de réalisation d'un dispositif (100) selon l'invention, présentant un pilier cylindrique (110) avec son filetage interne (120), la vis de liaison (130) , sa vis supplémentaire (140), prévu pour un implant à structure anti- rotative interne tel que hexagone interne par exemple. la figure 4 est une vue en coupe axiale d'un quatrième mode de réalisation d'un dispositif (100) selon l'invention, présentant un pilier en or ou alliage (110) avec son filetage interne (120), sa vis de liaison (130), sa vis supplémentaire (140), prévu pour un implant à structure anti-rotative interne. FIG. 3 is a view in axial section of a third embodiment of a device (100) according to the invention, having a cylindrical pillar (110) with its internal thread (120), the connecting screw (130). , its additional screw (140), provided for an implant with internal anti-rotating structure such as internal hexagon for example. FIG. 4 is a view in axial section of a fourth embodiment of a device (100) according to the invention, having a gold or alloy pillar (110) with its internal thread (120), its connecting screw (130), its additional screw (140), provided for an implant with internal anti-rotating structure.
la figure 5 est une vue en coupe axiale d'un cinquième mode de réalisation d'un dispositif (100) selon l'invention, présentant un pilier angulé (110) avec son filetage interne (120), sa vis de liaison (130), sa vis supplémentaire (140) prévu pour un implant à structure anti-rotative interne et à cône morse. FIG. 5 is a view in axial section of a fifth embodiment of a device (100) according to the invention, having an angulated abutment (110) with its internal thread (120), its connecting screw (130). , its additional screw (140) provided for an implant with internal anti-rotating structure and Morse taper.
- la figure 6 est une vue en coupe axiale d'un sixième mode de réalisation d'un dispositif (100) selon l'invention, présentant un pilier angulé (110) avec son filetage interne (120), sa vis de liaison (130) sa vis supplémentaire (140) prévu pour une connection par cône morse, c'est à dire que la structure anti-rotative de l'implant n'est pas utilisé, le long cône morse donnant la rétention nécessaire en fin de vissage. Dans ce dernier mode de réalisation non limitatif, la vis de liaison a son extrémité supérieur biseauté (160) pour être en contact avec la vis supplémentaire (140) qui n'est plus dans l'axe et qui présente une tête externe (170) contenant une structure anti-rotative pour être actionnée par un tournevis ou mandrin. FIG. 6 is a view in axial section of a sixth embodiment of a device (100) according to the invention, having an angular abutment (110) with its internal thread (120), its connecting screw (130). ) its additional screw (140) provided for a morse taper connection, that is to say that the anti-rotational structure of the implant is not used, the long Morse taper giving the necessary retention at the end of screwing. In this last non-limiting embodiment, the connecting screw has its beveled upper end (160) to be in contact with the additional screw (140) which is no longer in the axis and which has an external head (170) containing an anti-rotating structure to be actuated by a screwdriver or mandrel.
Plus particulièrement, l'ensemble prothétique selon l'invention comporte les caractéristiques suivantes: Le filetage interne (120) est logé tout le long du perçage interne du pilier ou du moignon, ou en partie de ce perçage; - Le filetage interne (120) présente une structure anti-rotative (150) par exemple hexagonale ou octogonale, pour accueillir un instrument de manoeuvre; - La structure anti-rotative (150) est placée au dessus ou en dessous du filetage interne (120) ; La vis supplémentaire (140) présente une structure anti-rotative pour accueillir un instrument de manoeuvre; - La vis supplémentaire (140) présente une zone non filetée à son extrémité inférieure ou à son extrémité supérieure, ou aux deux extrémités; La vis supplémentaire (140) présente une structure antirotative dans la zone non filetée de l'extrémité supérieure pour accueillir un instrument de manoeuvre; La vis de liaison classique (130) présente une tête cylindrique ou non cylindrique; La matière utilisée pour la fabrication de ces éléments est en métal ou alliage recouvert ou non par une couche provenant d'une autre matière, par exemple du carbone amorphe; - La matière utilisée pour la fabrication de ces éléments est en céramique, mélange céramique et métal, ou en tout autre matière non métallique. More particularly, the prosthetic assembly according to the invention has the following characteristics: The internal thread (120) is housed all along the internal bore of the abutment or stump, or in part of this piercing; - The internal thread (120) has an anti-rotary structure (150), for example hexagonal or octagonal, to accommodate an operating instrument; - The anti-rotational structure (150) is placed above or below the internal thread (120); The additional screw (140) has an anti-rotating structure for accommodating an operating instrument; - The additional screw (140) has a non-threaded zone at its lower end or its upper end, or at both ends; The additional screw (140) has a rotational structure in the unthreaded area of the upper end to accommodate an operating instrument; The conventional connecting screw (130) has a cylindrical or non-cylindrical head; The material used for the manufacture of these elements is metal or alloy covered or not by a layer from another material, for example amorphous carbon; - The material used for the manufacture of these elements is ceramic, ceramic and metal mixture, or any other non-metallic material.
Claims (6)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0412873A FR2878732A1 (en) | 2004-12-03 | 2004-12-03 | Prosthetic assembly for use in dental implantology, has cylindro-conical abutment, dental implant, and additional screw screwed along inner threading to block head of connecting screw by creating support force on head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0412873A FR2878732A1 (en) | 2004-12-03 | 2004-12-03 | Prosthetic assembly for use in dental implantology, has cylindro-conical abutment, dental implant, and additional screw screwed along inner threading to block head of connecting screw by creating support force on head |
Publications (1)
Publication Number | Publication Date |
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FR2878732A1 true FR2878732A1 (en) | 2006-06-09 |
Family
ID=34954088
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR0412873A Withdrawn FR2878732A1 (en) | 2004-12-03 | 2004-12-03 | Prosthetic assembly for use in dental implantology, has cylindro-conical abutment, dental implant, and additional screw screwed along inner threading to block head of connecting screw by creating support force on head |
Country Status (1)
Country | Link |
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FR (1) | FR2878732A1 (en) |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5169308A (en) * | 1989-12-22 | 1992-12-08 | Ab John Sjoding | Device for tooth implantation |
US5302125A (en) * | 1992-10-22 | 1994-04-12 | Kownacki Charles D | Dental prosthetic implant |
US5662474A (en) * | 1994-02-11 | 1997-09-02 | Nobel Biocare Ab | Spacing member for tooth implant |
US5733122A (en) * | 1995-05-31 | 1998-03-31 | Gordon; Basil | Dental implant attachment assembly including device and method for resisting loosening of attachment |
US20020123022A1 (en) * | 1999-10-28 | 2002-09-05 | Nicola Pilla | System of securement of dental abutments to dental implants |
-
2004
- 2004-12-03 FR FR0412873A patent/FR2878732A1/en not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5169308A (en) * | 1989-12-22 | 1992-12-08 | Ab John Sjoding | Device for tooth implantation |
US5302125A (en) * | 1992-10-22 | 1994-04-12 | Kownacki Charles D | Dental prosthetic implant |
US5662474A (en) * | 1994-02-11 | 1997-09-02 | Nobel Biocare Ab | Spacing member for tooth implant |
US5733122A (en) * | 1995-05-31 | 1998-03-31 | Gordon; Basil | Dental implant attachment assembly including device and method for resisting loosening of attachment |
US20020123022A1 (en) * | 1999-10-28 | 2002-09-05 | Nicola Pilla | System of securement of dental abutments to dental implants |
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ST | Notification of lapse |
Effective date: 20110831 |