EP1830737A1 - Dental restoration device - Google Patents

Dental restoration device

Info

Publication number
EP1830737A1
EP1830737A1 EP05778848A EP05778848A EP1830737A1 EP 1830737 A1 EP1830737 A1 EP 1830737A1 EP 05778848 A EP05778848 A EP 05778848A EP 05778848 A EP05778848 A EP 05778848A EP 1830737 A1 EP1830737 A1 EP 1830737A1
Authority
EP
European Patent Office
Prior art keywords
vertical wall
height
wall
dental
caries
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Withdrawn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
EP05778848A
Other languages
German (de)
French (fr)
Inventor
Denis Simon
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
Priority claimed from FR0413299A external-priority patent/FR2866226B1/en
Application filed by Individual filed Critical Individual
Publication of EP1830737A1 publication Critical patent/EP1830737A1/en
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • A61C5/80—Dental aids fixed to teeth during treatment, e.g. tooth clamps
    • A61C5/88—Wedges
    • 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
    • A61C5/80—Dental aids fixed to teeth during treatment, e.g. tooth clamps
    • A61C5/85—Filling bands, e.g. matrix bands; Manipulating tools therefor

Definitions

  • the present invention relates to a device for the dental reconstitution, this device being intended for use by dental surgeons.
  • the device of the present invention wants to solve the disadvantages of traditional systems by means simple, reliable, inexpensive and easy to implement.
  • the device which is intended to be used during the anatomical reconstruction of a tooth having a proximal caries, made of elastically deformable material, and constituted by two end blocks connected by a vertical wall whose height is greater than its thickness, a device in which the two end blocks are intended to be separated from one another by the branches of a clamp and is characterized in that the vertical wall has the shape of a wedge, its height being high enough to constitute in itself an inter- dental for proximal caries when the end blocks are in contact with the tooth walls with proximal caries and the one facing caries.
  • the solution according to the invention therefore essentially consists in providing an inter-dental elastic matrix piece which replaces, in particular, all the devices of the prior art according to which a matrix in general of metal is used with a particularly elastic wedge which comes to realize wedging and wedging of said matrix against the decayed tooth.
  • the height of the vertical wall is equal to the height of the two end blocks which also have the same height.
  • the vertical wall has the shape of a wedge, and is preferably formed by two concave curved surfaces converging upwards (HA).
  • each of the blocks is constituted by an end wall with at least two different surfaces whose bottom surface forms a chamfer.
  • the upper edge of the vertical wall is constituted by a sharp edge for creating the inter-dental contact point, once the dental reconstitution is complete.
  • the dentist can directly put a reconstitution material on top of this edge which once solidified will constitute the inter-dental point or, if necessary, create a cut-out in the edge itself, which it will fill directly with the reconstitution material.
  • the device consists of a single piece preferably made by injection molding.
  • the device of the invention also allows to spread very slightly the two adjacent teeth in order to complete, after the removal of the matrix, the point of contact.
  • the device allows the dental surgeon to make a hole or a clearance in the upper part of the vertical wall, using a small bur to physically materialize the necessary point of contact between the two teeth. .
  • Figure 1 is a perspective view of the device according to the invention.
  • Figure 2 is a top view.
  • Figure 3 is a sectional view along A-A of Figure 2.
  • Figure 4 is a sectional view along B-B of Figure 2.
  • Figures la to 4a are views similar to Figures 1 to 4 but showing a device according to the preferred embodiment
  • Figures 5a, 5b are views in vertical section along CC, DD, of the device according to the preferred embodiment of Figure la.
  • Figures 6a, 6b are horizontal sectional views along E-E, F-F, the device according to the preferred embodiment of Figure la.
  • Figure 7 is a view showing how the establishment of the device according to the invention.
  • Figure 8 is a top view, showing two teeth between which is set up device.
  • Figure 9 is a sectional view along G-G.
  • Figure 10 is a perspective view showing two adjacent teeth.
  • the device designated under the general reference (1) is constituted by two end blocks (2a, 2b) connected by a vertical wall (3).
  • the device (1) is made of elastic material such as elastomer or other similar material, such as latex.
  • elastic material such as elastomer or other similar material, such as latex.
  • the device (1) of the invention is intended to be used by dentists, during the reconstitution of one or more teeth (4, 4 '). Thus it is put in place by the dentist, in the mouth of the patient, between two adjacent teeth, for example one (4 ') has a proximal caries
  • a filling material for example photopolymerizable composite type
  • the device (1) of the invention is placed between the two teeth (4, 4 ') so that the vertical wall (3) is engaged between the two teeth to be reconstituted, or between the tooth to reconstitute and the adjacent tooth, as shown in FIGS. 7, 8, 9.
  • the establishment of the device (1) is by deformation of the device (1), and in particular by its longitudinal extension. Thus, it is extended according to F, obtained by traction thanks to a spacer (6) as shown in FIG.
  • each of the end blocks (2a, 2b) comprises a gripping hole respectively (7a, 7b), each of the holes being intended to receive the ends (61a, 61b) of the jaws of the placing clamp.
  • the device is put in place until the lower plane (H) of the device (1) is in contact with the gingiva (8). In this position the spacer is deactivated, and the device (1) due to its elasticity is placed under stress in bringing the two end blocks (2a, 2b) which then come into intimate contact with the tooth walls, as shown in Figures 7, 8, 9.
  • the vertical wall (3) of the device constitutes an inter-dental wall, constituting a wall for proximal caries and thus a rim that forms with the cavity of the caries a filling cavity (50) having a peripheral wall, cavity (50) that the dental surgeon can fill with anatomical repair material (9).
  • the vertical wall (3) is such that its height (hp) is greater than its thickness (e).
  • the height (hp) of the vertical wall (3) is equal to the height of the two end blocks (2a, 2b) which also have the same height.
  • the height (ha) of the inner block (2a) is equal to the height (hb) of the outer block (2b).
  • the vertical wall in the form of a wedge that is to say that it is formed by two concave curved surfaces (30, 31) converge towards the top, so that the thickness of the wall decreases upward, until for example the upper edge (32) is constituted by a sharp edge without thickness, which allows to create the contact point Inter dental once the dental reconstruction completed.
  • the vertical wall (3) takes place in the inter dental space in a perfect way, as appears more particularly in FIG. 8.
  • the vertical connecting wall (3) extends upwards, over a height (hp) high enough to constitute in itself a wall for proximal caries and therefore a rim (30) which forms with the cavity cavity a cavity (50) having a peripheral wall, cavity (50) that the dental surgeon can fill with anatomical repair material (9).
  • the height (hp) of the vertical wall (3) is for example equal to the height of the end blocks, and is for example between 1 and 8 millimeters, for example 3 millimeters.
  • the height (hp) of the vertical wall (3) may be less than that (ha) of the inner block (2a) and / or that (hb) of the outer block (2b) but while remaining sufficiently high to form, in the reconstitution position and after removal of the clamp, a flange (30) substantially of the same level as the upper edge of the decayed tooth as it was before caries appeared.
  • the height (hp) of the vertical wall (3) in the rest position, that is to say, when the device will not be subjected to any elastic bias, is equal to at least 70% of the height (ha , hb) least important blocks (2a, 2b). Preferably, this height will be of the order of 90% of the height (ha, hb) of the two blocks (2a, 2b) when they are of the same height.
  • Each of the blocks (2a, 2b) is constituted by an end wall (21) with a single curved and convex surface, which extends to two points of inflection (Ao and Bo), to be extended by two concave side surfaces (22a, 22b) connecting the convex end wall (21) to the vertical wall (3). These two concave surfaces (22a, 22b) are intended to cooperate with the inter-dental peripheral surface of the teeth.
  • the curved and convex single surface end wall (21) has for each block (2a, 2b) an upwardly inclined generative line ga, gb (FIG. 3), the inclination of a generative line ga of the internal block (2a) being identical to the other gb of the outer block (2b). It will also be added that the two end blocks 2a, 2b may be identical as illustrated, or different in their volume, dimensions, and / or their shape.
  • FIGS. 1a to 4a and 5a, 5b and 6a, 6b show a preferred embodiment of the device according to the invention according to which the two end blocks (2a, 2b) are identical to one another but whose wall is end (21 ') is different from the wall (21) with curved and convex single surface previously described.
  • this end wall (21 ') is also curved but has two different surfaces (21O', 211 '): a curved surface and convex (210 ') located above a curved but concave surface (211') ( Figures 5a, 5b).
  • the four corners of the lower part forming the base of each block (2a, 2b) have been removed and the bottom surface (211 ') therefore forms a chamfer.
  • This form of curved and concave surface chamfer (FIGS. 5a, 5b) makes it possible to prevent the device according to the invention from being unhooked, in certain configurations, at the level of the molars on which the reconstitution operation is carried out.
  • this chamfer (211 ') can have a completely different surface: it can have a flat surface or a curved surface.
  • This curved surface may also be convex but with a convexity different from that of the top surface (210 ').
  • This chamfering bottom surface (211 ') of each block (2a, 2b) is preferably made by removal of material from the top surface.
  • the choice of the line of the separation line (Li) between the surface of the top (210 ') and that of the bottom (211') forming a chamfer and the choice between a flat or curved surface of the surface (211 ') will be determined so as to marry at best the profile of the teeth between which the device according to the invention will be inserted. The establishment of the device (1) is thus greatly improved.
  • the vertical wall (3 ') has a triangular wedge shape at the axis of symmetry (BB) of the device (FIG. 4a), that is to say that it is formed by two straight surfaces (30 ', 31') converge upwards, so that the thickness of the wall decreases upward, until for example the upper edge (32) is constituted by a sharp edge without thickness, which also makes it possible to create the inter-dental contact point once the dental reconstitution is complete.
  • the invention is not limited to the embodiments described and represented by way of examples, but it also includes all the technical equivalents as well as their combinations.
  • the invention as realized in the illustrated and preferred embodiment therefore consists essentially of providing an inter dental elastic matrix made in a single piece which will preferably be injection molded.

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 Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

The invention relates to a device for anatomically restoring a tooth having a proximal caries (5), wherein the inventive device is made of an elastically deformable material and consists of two end units (2a, 2b) which are connected by a vertical wall (3) whose height (hp) is greater than the thickness thereof (e) and are separable from each other by a pair of forceps (6). Said device is characterised in that the vertical wall (3) is shaped in the form of a corner, the height thereof (hp) is sufficiently high in such a way that it forms an interdental partition for the proximal caries (5) when the end units (2a, 2b) are brought into contact with the walls of said tooth (4') having the proximal caries and with a tooth (4) in front of the caries (5).

Description

DISPOSITIF DESTINE A ETRE UTILISE LORS DE LA RECONSTITUTION DENTAIRE.DEVICE FOR USE IN DENTAL RECONSTITUTION.
La présente invention concerne un dispositif permettant la reconstitution dentaire, ce dispositif étant destiné à être utilisé par les chirurgiens dentistes.The present invention relates to a device for the dental reconstitution, this device being intended for use by dental surgeons.
La vie moderne et notamment professionnelle, impose aux individus d'avoir une présentation physique correcte, aussi le recours aux chirurgiens dentistes est de plus en plus fréquent. Ce dernier est souvent amené à soigner des caries proximales et reconstituer la dent en remplissant la cavité. A ce remplissage qui était fait par un amalgame dentaire métallique, est maintenant préféré un matériau composite que le dentiste fait polymériser. L'idéal, pour mettre en place ce matériau serait d'utiliser deux coins inter dentaires avec une matrice transparente de très faible épaisseur. Mais la mise en place serait difficile et de position pas très certaine, pour obtenir un bon résultat.Modern life and especially professional life, requires individuals to have a correct physical presentation, also the use of dental surgeons is becoming more common. The latter is often required to treat proximal caries and restore the tooth by filling the cavity. At this filling which was made by a metallic dental amalgam, is now preferred a composite material that the dentist has polymerized. Ideally, to set up this material would be to use two inter-dental wedges with a very thin transparent matrix. But the implementation would be difficult and not very sure position, to get a good result.
Le dispositif de la présente invention veut résoudre les inconvénients des systèmes traditionnels grâce à des moyens simples, fiables, peu onéreux et facile à mettre en œuvre.The device of the present invention wants to solve the disadvantages of traditional systems by means simple, reliable, inexpensive and easy to implement.
Ainsi, selon l'invention le dispositif, qui est destiné à être utilisé lors de la reconstitution anatomique d'une dent ayant une carie proximale, réalisé en matériau élastiquement déformable, et constitué par deux blocs d'extrémité reliés par une paroi verticale dont la hauteur est supérieure à son épaisseur, dispositif dans lequel les deux blocs d'extrémité sont destinés à être écartés l'un de l'autre par les branches d'une pince et est caractérisé en ce que la paroi verticale a la forme d'un coin, sa hauteur étant suffisamment haute pour constituer à elle seule une paroi inter- dentaire pour la carie proximale lorsque les blocs d'extrémités sont en contact avec les parois de la dent avec carie proximale et de celle en regard de la carie.Thus, according to the invention, the device, which is intended to be used during the anatomical reconstruction of a tooth having a proximal caries, made of elastically deformable material, and constituted by two end blocks connected by a vertical wall whose height is greater than its thickness, a device in which the two end blocks are intended to be separated from one another by the branches of a clamp and is characterized in that the vertical wall has the shape of a wedge, its height being high enough to constitute in itself an inter- dental for proximal caries when the end blocks are in contact with the tooth walls with proximal caries and the one facing caries.
Ainsi, la solution selon l'invention consiste donc essentiellement à proposer une pièce formant matrice élastique inter-dentaire et qui remplace notamment tous les dispositifs de l'art antérieur selon lesquels une matrice en général métallique est utilisée avec un coin notamment élastique qui vient réaliser le calage et coincement de ladite matrice contre la dent cariée. Les avantages sont ainsi nombreux : mise en place d'une pièce en un seul mouvement d'écartement des blocs d'extrémité à partir d'une pince déjà existante et facilement disponible chez un chirurgien dentiste.Thus, the solution according to the invention therefore essentially consists in providing an inter-dental elastic matrix piece which replaces, in particular, all the devices of the prior art according to which a matrix in general of metal is used with a particularly elastic wedge which comes to realize wedging and wedging of said matrix against the decayed tooth. The advantages are thus numerous: setting up a part in a single movement of separation of the end blocks from an already existing clamp and easily available from a dental surgeon.
Selon une autre caractéristique complémentaire, la hauteur de la paroi verticale est égale à la hauteur des deux blocs d'extrémité qui ont par ailleurs la même hauteur.According to another complementary feature, the height of the vertical wall is equal to the height of the two end blocks which also have the same height.
Ajoutons que selon le mode préféré de réalisation, la paroi verticale a la forme d'un coin, et est de préférence formée par deux surfaces courbes concaves convergent vers le haut (HA).Let us add that according to the preferred embodiment, the vertical wall has the shape of a wedge, and is preferably formed by two concave curved surfaces converging upwards (HA).
Selon le mode préféré de l'invention, chacun des blocs est constitué par une paroi d'extrémité avec au moins deux surfaces différentes dont la surface de dessous forme un chanfrein.According to the preferred embodiment of the invention, each of the blocks is constituted by an end wall with at least two different surfaces whose bottom surface forms a chamfer.
Egalement selon le mode de réalisation préféré, le bord supérieur de la paroi verticale est constitué par une arête pointue permettant de créer le point de contact inter-dentaire, une fois la reconstitution dentaire terminée. En effet, le dentiste peut mettre directement un matériau de reconstitution sur le dessus de cette arête qui une fois solidifiée constituera le point inter-dentaire ou le cas échéant créer une découpe dans l'arête proprement dite qu'il comblera directement avec le matériau de reconstitution.Also according to the preferred embodiment, the upper edge of the vertical wall is constituted by a sharp edge for creating the inter-dental contact point, once the dental reconstitution is complete. Indeed, the dentist can directly put a reconstitution material on top of this edge which once solidified will constitute the inter-dental point or, if necessary, create a cut-out in the edge itself, which it will fill directly with the reconstitution material.
Enfin selon le mode de réalisation préféré, le dispositif est constitué en une pièce unique de préférence réalisée par moulage avec injection.Finally, according to the preferred embodiment, the device consists of a single piece preferably made by injection molding.
On a compris que le dispositif de l'invention, permet aussi d'écarter très légèrement les deux dents adjacentes dans un but de parfaire, après la dépose de la matrice, le point de contact.It is understood that the device of the invention, also allows to spread very slightly the two adjacent teeth in order to complete, after the removal of the matrix, the point of contact.
On ajoutera que le dispositif permet au chirurgien dentiste, de réaliser à la partie haute de la paroi verticale, un trou ou un dégagement, à l'aide d'une petite fraise, afin de matérialiser physiquement le point de contact nécessaire entre les deux dents.It will be added that the device allows the dental surgeon to make a hole or a clearance in the upper part of the vertical wall, using a small bur to physically materialize the necessary point of contact between the two teeth. .
D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés qui ne sont donnés qu'à titre d'exemple non limitatif.Other features and advantages of the invention will become apparent from the following description with reference to the accompanying drawings which are given by way of non-limiting example.
La figure 1 est une vue en perspective du dispositif selon l'invention.Figure 1 is a perspective view of the device according to the invention.
La figure 2 est une vue de dessus.Figure 2 is a top view.
La figure 3 est une vue en coupe selon A-A de la figure 2.Figure 3 is a sectional view along A-A of Figure 2.
La figure 4 est une vue en coupe selon B-B, de la figure 2.Figure 4 is a sectional view along B-B of Figure 2.
Les figures la à 4a sont des vues analogues aux figures 1 à 4 mais montrant un dispositif selon le mode de réalisation préféré Les figures 5a, 5b sont des vues en coupe verticale selon C-C, D-D, du dispositif selon le mode de réalisation préféré de la figure la.Figures la to 4a are views similar to Figures 1 to 4 but showing a device according to the preferred embodiment Figures 5a, 5b are views in vertical section along CC, DD, of the device according to the preferred embodiment of Figure la.
Les figures 6a,6b sont des vues en coupe horizontale selon E-E, F- F, du dispositif selon le mode de réalisation préféré de la figure la.Figures 6a, 6b are horizontal sectional views along E-E, F-F, the device according to the preferred embodiment of Figure la.
La figure 7, est une vue montrant comment se fait la mise en place du dispositif selon l'invention.Figure 7 is a view showing how the establishment of the device according to the invention.
La figure 8 est une vue de dessus, montrant deux dents entre lesquelles est mis en place de dispositif.Figure 8 is a top view, showing two teeth between which is set up device.
La figure 9 est une vue en coupe selon G-G.Figure 9 is a sectional view along G-G.
La figure 10 est une vue en perspective montrant deux dents adjacentes.Figure 10 is a perspective view showing two adjacent teeth.
Le dispositif désigné sous la référence générale (1) est constitué par deux blocs d'extrémité (2a, 2b) reliés par une paroi verticale (3).The device designated under the general reference (1) is constituted by two end blocks (2a, 2b) connected by a vertical wall (3).
Selon une caractéristique de l'invention le dispositif (1) est réalisé en matériau élastique comme par exemple en élastomère ou tout autre matériau similaire, tel que du latex. L'élasticité du matériau permettant, comme nous le verrons plus loin la déformation de l'ensemble lors de la mise en place, ainsi que sa retenue.According to a feature of the invention the device (1) is made of elastic material such as elastomer or other similar material, such as latex. The elasticity of the material allowing, as we shall see later deformation of the assembly during the establishment, and its retention.
Le dispositif (1) de l'invention est destiné à être utilisé par les dentistes, lors de la reconstitution d'une ou plusieurs dents (4, 4'). Ainsi il est mis en place par le dentiste, dans la bouche du patient, entre deux dents adjacentes dont par exemple l'une (4') présente une carie proximaleThe device (1) of the invention is intended to be used by dentists, during the reconstitution of one or more teeth (4, 4 '). Thus it is put in place by the dentist, in the mouth of the patient, between two adjacent teeth, for example one (4 ') has a proximal caries
(5) qui doit être remplie après traitement, par un matériau de remplissage, par exemple de type composite photopolymérisable, afin de reconstruire la dent dans ses trois dimensions.(5) to be filled after treatment with a filling material, for example photopolymerizable composite type, in order to rebuild the tooth in its three dimensions.
Ainsi, le dispositif (1) de l'invention est mise en place entre les deux dents (4, 4') de façon à ce que la paroi verticale (3) soit engagée, entre les deux dents à reconstituer, ou entre la dent à reconstituer et la dent adjacente, tel que cela est illustré aux figures 7, 8, 9.Thus, the device (1) of the invention is placed between the two teeth (4, 4 ') so that the vertical wall (3) is engaged between the two teeth to be reconstituted, or between the tooth to reconstitute and the adjacent tooth, as shown in FIGS. 7, 8, 9.
La mise en place du dispositif (1) se fait par déformation du dispositif (1), et notamment par son extension longitudinale. Ainsi, il est mis en extension selon F, obtenue par traction grâce à une pince d'écartement (6) tel qu'illustré à la figure 6.The establishment of the device (1) is by deformation of the device (1), and in particular by its longitudinal extension. Thus, it is extended according to F, obtained by traction thanks to a spacer (6) as shown in FIG.
A cet effet, chacun des blocs d'extrémité (2a, 2b) comprend un trou de préhension respectivement (7a, 7b), chacun des trous étant destiné à recevoir les extrémités (61a, 61b) des mâchoires de la pince de mise en place (6). Après écartement, le dispositif est mis en place jusqu'à ce que le plan inférieur (H) du dispositif (1) soit en contact avec la gencive (8). Dans cette position la pince d'écartement est désactivée, et le dispositif (1) grâce à son élasticité se place sous contrainte en rapprochement des deux blocs d'extrémité (2a, 2b) qui viennent alors en contact intime avec les parois de dents, tel que cela est illustré aux figures 7, 8, 9. Dans cette position, la paroi verticale (3) du dispositif constitue une paroi inter dentaire, constituant une paroi pour la carie proximale et donc un rebord qui forme avec le trou de la carie une cavité de remplissage (50) ayant une paroi périphérique, cavité (50) que le chirurgien dentiste pourra remplir du matériau de réparation anatomique (9).For this purpose, each of the end blocks (2a, 2b) comprises a gripping hole respectively (7a, 7b), each of the holes being intended to receive the ends (61a, 61b) of the jaws of the placing clamp. (6). After separation, the device is put in place until the lower plane (H) of the device (1) is in contact with the gingiva (8). In this position the spacer is deactivated, and the device (1) due to its elasticity is placed under stress in bringing the two end blocks (2a, 2b) which then come into intimate contact with the tooth walls, as shown in Figures 7, 8, 9. In this position, the vertical wall (3) of the device constitutes an inter-dental wall, constituting a wall for proximal caries and thus a rim that forms with the cavity of the caries a filling cavity (50) having a peripheral wall, cavity (50) that the dental surgeon can fill with anatomical repair material (9).
Dès que la dent est reconstruite, et que le matériau composite est polymérisé par exemple photo polymérisé, il suffit pour le dentiste de sectionner le dispositif (1) et de le retirer. Selon une caractéristique de l'invention, la paroi verticale (3) est telle que sa hauteur (hp) soit supérieure à son épaisseur (e). Selon le mode de réalisation, la hauteur (hp) de la paroi verticale (3) est égale à la hauteur des deux blocs d'extrémité (2a, 2b) qui ont par ailleurs la même hauteur. Ainsi, la hauteur (ha) du bloc interne (2a) est égale à la hauteur (hb) du bloc externe (2b).As soon as the tooth is reconstructed, and the composite material is polymerized for example polymerized photo, it is sufficient for the dentist to cut the device (1) and remove it. According to one characteristic of the invention, the vertical wall (3) is such that its height (hp) is greater than its thickness (e). According to the embodiment, the height (hp) of the vertical wall (3) is equal to the height of the two end blocks (2a, 2b) which also have the same height. Thus, the height (ha) of the inner block (2a) is equal to the height (hb) of the outer block (2b).
Par ailleurs, et comme cela apparaît clairement sur les figures 3 et 4, la paroi verticale à la forme d'un coin, c'est-à-dire qu'elle est formée par deux surfaces courbes concaves (30, 31) convergent vers le haut, de façon à ce que l'épaisseur de la paroi diminue vers le haut, jusqu'à ce que par exemple la bordure supérieure (32) soit constituée par une arête pointue sans épaisseur, ce qui permet de créer le point de contact inter dentaire une fois la reconstitution dentaire terminée. Avec sa forme en coin, la paroi verticale (3) prend place dans l'espace inter dentaire de façon parfaite, tel que cela apparaît plus particulièrement à la figure 8.Moreover, and as is clear from FIGS. 3 and 4, the vertical wall in the form of a wedge, that is to say that it is formed by two concave curved surfaces (30, 31) converge towards the top, so that the thickness of the wall decreases upward, until for example the upper edge (32) is constituted by a sharp edge without thickness, which allows to create the contact point Inter dental once the dental reconstruction completed. With its wedge shape, the vertical wall (3) takes place in the inter dental space in a perfect way, as appears more particularly in FIG. 8.
On a compris de ce qui précède que la paroi verticale de liaison (3) s'étend vers le haut, sur une hauteur (hp) assez haute pour constituer à elle seule une paroi pour la carie proximale et donc un rebord (30) qui forme avec le trou de la carie une cavité (50) ayant une paroi périphérique, cavité (50) que le chirurgien dentiste pourra remplir du matériau de réparation anatomique (9). La hauteur (hp) de la paroi verticale (3) est par exemple égale à la hauteur des blocs d'extrémité, et est par exemple comprise entre 1 et 8 millimètres, comme par exemple 3 millimètres.It has been understood from the foregoing that the vertical connecting wall (3) extends upwards, over a height (hp) high enough to constitute in itself a wall for proximal caries and therefore a rim (30) which forms with the cavity cavity a cavity (50) having a peripheral wall, cavity (50) that the dental surgeon can fill with anatomical repair material (9). The height (hp) of the vertical wall (3) is for example equal to the height of the end blocks, and is for example between 1 and 8 millimeters, for example 3 millimeters.
Il va de soi que la hauteur (hp) de la paroi verticale (3) peut être inférieure à celle (ha) du bloc interne (2a) et/ ou à celle (hb) du bloc externe (2b) mais tout en restant suffisamment haute pour former, en position de reconstitution et après enlèvement de la pince, un rebord (30) substantiellement du même niveau que le bord supérieur de la dent cariée tel qu'il était avant que la carie n'apparaisse. Avantageusement, en position de repos, c'est-à-dire, lorsque le dispositif ne sera soumis à aucune sollicitation élastique, la hauteur (hp) de la paroi verticale (3) est égale à au moins 70% de la hauteur (ha,hb) des blocs (2a,2b) la moins importante. De préférence, cette hauteur sera de l'ordre de 90% de la hauteur (ha, hb) des deux blocs (2a,2b) lorsque ces derniers seront de même hauteur.It goes without saying that the height (hp) of the vertical wall (3) may be less than that (ha) of the inner block (2a) and / or that (hb) of the outer block (2b) but while remaining sufficiently high to form, in the reconstitution position and after removal of the clamp, a flange (30) substantially of the same level as the upper edge of the decayed tooth as it was before caries appeared. Advantageously, in the rest position, that is to say, when the device will not be subjected to any elastic bias, the height (hp) of the vertical wall (3) is equal to at least 70% of the height (ha , hb) least important blocks (2a, 2b). Preferably, this height will be of the order of 90% of the height (ha, hb) of the two blocks (2a, 2b) when they are of the same height.
Chacun des blocs (2a, 2b) est constitué par une paroi (21) d'extrémité avec une surface unique courbe et convexe, qui s'étend jusqu'à deux points d'inflexion (Ao et Bo), pour être prolongée par deux surfaces latérales concaves (22a, 22b) reliant la paroi d'extrémité convexe (21) à la paroi verticale (3). Ces deux surfaces concaves (22a,22b) sont destinées à coopérer avec la surface périphérique inter dentaire des dents. La paroi d'extrémité (21) de surface unique courbe et convexe a pour chaque bloc (2a, 2b) une ligne génératrice ga, gb inclinée vers le haut (figure 3), l'inclinaison d'une ligne génératrice ga du bloc interne (2a) étant identique à l'autre gb du bloc externe (2b). On ajoutera aussi que les deux blocs d'extrémité 2a,2b peuvent être identiques tel que cela est illustré, ou différents dans leur volume, dimensions, et/ ou leur forme.Each of the blocks (2a, 2b) is constituted by an end wall (21) with a single curved and convex surface, which extends to two points of inflection (Ao and Bo), to be extended by two concave side surfaces (22a, 22b) connecting the convex end wall (21) to the vertical wall (3). These two concave surfaces (22a, 22b) are intended to cooperate with the inter-dental peripheral surface of the teeth. The curved and convex single surface end wall (21) has for each block (2a, 2b) an upwardly inclined generative line ga, gb (FIG. 3), the inclination of a generative line ga of the internal block (2a) being identical to the other gb of the outer block (2b). It will also be added that the two end blocks 2a, 2b may be identical as illustrated, or different in their volume, dimensions, and / or their shape.
Aux figures la à 4a et figures 5a,5b et 6a,6b on a représenté un mode de réalisation préféré du dispositif selon l'invention selon lequel les deux blocs d'extrémités (2a,2b) sont identiques entre eux mais dont la paroi d'extrémité (21') est différente de la paroi (21) avec surface unique courbe et convexe précédemment décrite.FIGS. 1a to 4a and 5a, 5b and 6a, 6b show a preferred embodiment of the device according to the invention according to which the two end blocks (2a, 2b) are identical to one another but whose wall is end (21 ') is different from the wall (21) with curved and convex single surface previously described.
En effet, cette paroi d'extrémité (21') est également courbe mais présente deux surfaces (21O',211') différentes : une surface courbe et convexe (210') située au dessus d'une surface courbe mais concave (211') (figures 5a, 5b).Indeed, this end wall (21 ') is also curved but has two different surfaces (21O', 211 '): a curved surface and convex (210 ') located above a curved but concave surface (211') (Figures 5a, 5b).
Ainsi, selon ce mode de réalisation, les quatre angles de la partie inférieure formant la base de chaque bloc (2a,2b) ont été supprimés et la surface du dessous (211') forme donc un chanfrein. Cette forme de chanfrein de surface ici courbe et concave (figure 5a,5b) permet d'éviter que le dispositif selon l'invention ne se décroche, dans certaines configurations, au niveau des molaires sur lesquelles l'opération de reconstitution est réalisée. Bien évidemment, ce chanfrein (211') peut avoir une toute autre surface : il peut avoir une surface plane ou une surface courbe. Cette surface courbe peut être également convexe mais avec une convexité différente de celle de la surface du dessus (210'). Cette surface du dessous (211') formant chanfrein (211') de chaque bloc (2a,2b) est de préférence réalisé par enlèvement de matière par rapport à la surface du dessus. Le choix du tracé de la ligne (Li) de séparation entre la surface du dessus (210') et celle du dessous (211') formant chanfrein ainsi que le choix entre une surface plane ou courbe de la surface (211') seront déterminés de manière à épouser au mieux le profil des dents entre lesquelles le dispositif selon l'invention sera inséré. La mise en place du dispositif (1) est ainsi grandement améliorée.Thus, according to this embodiment, the four corners of the lower part forming the base of each block (2a, 2b) have been removed and the bottom surface (211 ') therefore forms a chamfer. This form of curved and concave surface chamfer (FIGS. 5a, 5b) makes it possible to prevent the device according to the invention from being unhooked, in certain configurations, at the level of the molars on which the reconstitution operation is carried out. Of course, this chamfer (211 ') can have a completely different surface: it can have a flat surface or a curved surface. This curved surface may also be convex but with a convexity different from that of the top surface (210 '). This chamfering bottom surface (211 ') of each block (2a, 2b) is preferably made by removal of material from the top surface. The choice of the line of the separation line (Li) between the surface of the top (210 ') and that of the bottom (211') forming a chamfer and the choice between a flat or curved surface of the surface (211 ') will be determined so as to marry at best the profile of the teeth between which the device according to the invention will be inserted. The establishment of the device (1) is thus greatly improved.
La paroi verticale (3') a dans ce mode de réalisation préféré une forme de coin triangulaire au niveau de l'axe de symétrie (B-B) du dispositif (figure 4a), c'est-à-dire qu'elle est formée par deux surfaces droites (30', 31') convergent vers le haut, de façon à ce que l'épaisseur de la paroi diminue vers le haut, jusqu'à ce que par exemple la bordure supérieure (32) soit constituée par une arête pointue sans épaisseur, ce qui également permet de créer le point de contact inter dentaire une fois la reconstitution dentaire terminée. Bien entendu, l'invention n'est pas limitée aux modes de réalisation décrits et représentés à titre d'exemples, mais elle comprend aussi tous les équivalents techniques ainsi que leurs combinaisons.In this preferred embodiment, the vertical wall (3 ') has a triangular wedge shape at the axis of symmetry (BB) of the device (FIG. 4a), that is to say that it is formed by two straight surfaces (30 ', 31') converge upwards, so that the thickness of the wall decreases upward, until for example the upper edge (32) is constituted by a sharp edge without thickness, which also makes it possible to create the inter-dental contact point once the dental reconstitution is complete. Of course, the invention is not limited to the embodiments described and represented by way of examples, but it also includes all the technical equivalents as well as their combinations.
En quelque sorte, l'invention telle que réalisée dans le mode de réalisation illustré et préféré, consiste donc essentiellement à proposer une matrice élastique inter dentaire réalisée en une seule pièce unique qui sera de préférence moulée par injection. In a way, the invention as realized in the illustrated and preferred embodiment, therefore consists essentially of providing an inter dental elastic matrix made in a single piece which will preferably be injection molded.

Claims

REVENDICATIONS
1- Dispositif (1) destiné à être utilisé lors de la reconstitution anatomique d'une dent ayant une carie proximale (5), le dispositif étant réalisé en matériau élastiquement déformable et constitué par deux blocs d'extrémité (2a, 2b) reliés par une paroi verticale (3), dont la hauteur (hp) est supérieure à son épaisseur (e), dispositif dans lequel les deux blocs d'extrémité sont destinés à être écartés l'un de l'autre par les branches d'une pince (6) caractérisé en ce que la paroi verticale (3) a la forme d'un coin, sa hauteur (hp) étant suffisamment haute pour constituer à elle seule une paroi inter-dentaire pour la carie proximale (5) lorsque les blocs d'extrémités (2a,2b) sont en contact avec les parois de la dent (4') avec carie proximale et de celle (4) en regard de la carie (5).1-device (1) intended to be used during the anatomical reconstruction of a tooth having a proximal decay (5), the device being made of elastically deformable material and constituted by two end blocks (2a, 2b) connected by a vertical wall (3) whose height (hp) is greater than its thickness (e), in which device the two end blocks are intended to be separated from one another by the branches of a clamp (6) characterized in that the vertical wall (3) is wedge-shaped, its height (hp) being high enough to form an inter-dental wall for the proximal caries (5) alone when the ends (2a, 2b) are in contact with the walls of the tooth (4 ') with proximal caries and that (4) facing the caries (5).
2- Dispositif selon la revendication 1, caractérisé en ce que, la hauteur (hp) de la paroi verticale (3) est égale à la hauteur des deux blocs d'extrémité (2a, 2b) qui ont par ailleurs la même hauteur.2- Device according to claim 1, characterized in that, the height (hp) of the vertical wall (3) is equal to the height of the two end blocks (2a, 2b) which also have the same height.
3-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que la paroi verticale est formée par deux surfaces courbes concaves (31, 32) convergeant vers le haut (HA).3-Device according to any one of the preceding claims, characterized in that the vertical wall is formed by two concave curved surfaces (31, 32) converging upwardly (HA).
4-Dispositif selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la paroi verticale est formée par deux surfaces droites (30', 31') convergeant vers le haut (HA).4-Device according to any one of claims 1 to 3, characterized in that the vertical wall is formed by two straight surfaces (30 ', 31') converging upwardly (HA).
5-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que chacun des blocs (2a, 2b) est constitué par une paroi d'extrémité (21) de surface unique courbe et convexe, qui s'étend jusqu'à deux points d'inflexion (Ao et Bo), pour être prolongée par deux surfaces latérales concaves (22a, 22b) reliant la paroi d'extrémité (21) à la paroi verticale (3).5-Device according to any one of the preceding claims, characterized in that each of the blocks (2a, 2b) is constituted by an end wall (21) of single curved and convex surface, which extends up to two inflection points (Ao and Bo), to be extended by two concave lateral surfaces (22a, 22b) connecting the end wall (21) to the vertical wall (3).
6-Dispositif selon l'une quelconque des revendications 1 à 4, caractérisé en ce que chacun des blocs (2a, 2b) est constitué par une paroi d'extrémité (21) avec au moins deux surfaces (21O',211') différentes dont la surface de dessous (211') forme un chanfrein.6-Device according to any one of claims 1 to 4, characterized in that each of the blocks (2a, 2b) is constituted by an end wall (21) with at least two surfaces (21O ', 211') different whose bottom surface (211 ') forms a chamfer.
7-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est réalisé en élastomère ou en latex.7-Device according to any one of the preceding claims, characterized in that it is made of elastomer or latex.
8-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que le bord supérieur (32) de la paroi verticale (3) est constitué par une arête pointue permettant de créer le point de contact inter-dentaire, une fois la reconstitution dentaire terminée.8-Device according to any one of the preceding claims, characterized in that the upper edge (32) of the vertical wall (3) is constituted by a sharp edge to create the inter-dental contact point, once reconstitution dental completed.
9-Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est constitué d'une pièce unique. 9-Device according to any one of the preceding claims, characterized in that it consists of a single piece.
EP05778848A 2004-12-08 2005-06-15 Dental restoration device Withdrawn EP1830737A1 (en)

Applications Claiming Priority (2)

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FR0413299A FR2866226B1 (en) 2004-02-18 2004-12-08 DEVICE FOR USE IN DENTAL RECONSTITUTION
PCT/FR2005/001504 WO2006061467A1 (en) 2004-12-08 2005-06-15 Dental restoration device

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US9308058B2 (en) * 2006-09-13 2016-04-12 David J. Clark Devices and a seamless, single load, injection molded cavity preparation and filling technique
US8641419B2 (en) * 2007-07-25 2014-02-04 David J. Clark Methods and devices for fixed dental restoration
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JP6619803B2 (en) 2014-06-04 2019-12-11 デイヴィッド ジェイ． クラーク Dental wedge
WO2016094272A1 (en) 2014-12-09 2016-06-16 3M Innovative Properties Company Dental restoration molding techniques
JP6971235B2 (en) 2015-12-17 2021-11-24 スリーエム イノベイティブ プロパティズ カンパニー One-piece dental restoration mold
WO2017106431A1 (en) 2015-12-17 2017-06-22 3M Innovative Properties Company Dental restoration molds
US11547530B2 (en) 2016-07-26 2023-01-10 3M Innovative Properties Company Dental restoration molds
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