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.

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• 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)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (3)

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• 2005
  • 2005-06-15 WO PCT/FR2005/001504 patent/WO2006061467A1/fr active Application Filing
  • 2005-06-15 EP EP05778848A patent/EP1830737A1/de not_active Withdrawn
  • 2005-06-15 US US11/792,736 patent/US20090104581A1/en not_active Abandoned

Non-Patent Citations (1)

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