DENTAL IMPLANTATION DEVICE

Abstract

A device for obturating the root canals of teeth, which includes an elongate rod having a lower section, a central section and an upper section, such that the lower section is inserted into the bottom or end of the root canal of the tooth, the central section is disposed along the length of the root canal, and the upper section is outside of the root canal of the tooth. The lower section is made of titanium and with a geometry suitable for incrustation in the area of the bottom or end of the root canal of the tooth, and the central section is made of an alloy of titanium and nickel that is biocompatible and flexible for the adaptation and positioning of the central section along the root canal, and incorporates a coating of flexible material that is biocompatible with the inside of the root canal.

Claims

1. A dental implantation device suitable for obturation of root canals in teeth that comprises an elongated rod having a lower section, a central section, and an upper section, and is disposed in a tooth such that the lower section is inserted into the bottom or end of the root canal of the tooth, the central section is disposed along the length of the root canal, and the upper section is outside the root canal of the tooth, wherein the lower section is composed of titanium, has a geometry suitable for adaptation and/or incrustation in the area of the bottom or end of the root canal of the tooth, and has a sealing capacity, wherein the central section is composed of an alloy of titanium and nickel that is flexible for adaptation and positioning along the root canal, and the central section incorporates a coating of material that is flexible and biocompatible with the interior of the root canal.

2. The dental implantation device as claimed in claim 1, wherein the coating of the central section is composed of gutta-percha.

3. The dental implantation device as claimed in claim 1, wherein the coating of the central section is accompanied by endodontic or similar cement.

4. The dental implantation device as claimed in claim 1, wherein the lower section has a porous surface similar to the surrounding bone at the bottom of the root canal.

5. The dental implantation device as claimed in claim 1, wherein the lower section is composed of titanium of grade V or above.

6. The dental implantation device as claimed in claim 1, wherein the lower section is composed of titanium of lower than grade V.

7. The dental implantation device as claimed in claim 1, wherein the surface of the rod is treated by means of physicochemical microtreatments or nanotreatments.

8. The dental implantation device as claimed in claim 1, wherein the lower section has a conical or similar geometry.

9. The dental implantation device as claimed in claim 1, wherein the upper section of the rod comprises a post-type prolongation, wherein the post in turn has a slot suitable for the insertion of a pin present in an applicator, with the applicator therefore remaining fixed in relation to the post.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0024] FIG. 1.A schematic view of a preferred embodiment of the dental implantation device of the present invention.

[0025] FIG. 2.A schematic view of use in a tooth of a preferred embodiment of the dental implantation device of the present invention.

[0026] FIG. 3.A schematic view of the same tooth shown in FIG. 2, but without using the dental implantation device of the present invention.

DESCRIPTION OF A PREFERRED EMBODIMENT

[0027] The dental implantation device of the present invention belongs to the technical field of dental implantation.

[0028] As shown schematically in FIG. 1, the dental implantation device of the invention comprises an elongated rod 1.

[0029] Said elongated rod 1 comprises a lower section 11, a central section 12, and an upper section 13.

[0030] As shown schematically in FIG. 2, in use of the dental implantation device of the invention, the rod 1 is disposed and introduced into a tooth 2 such that the lower section 11 is inserted into the bottom or end of the root canal 21, the central section 12 is disposed along the length of the root canal 21, and the upper section 13 of the rod 1 is already outside the root canal 21 of the tooth 2.

[0031] FIG. 3 shows a schematic view of the same tooth 2 for clarification purposes, but without the rod 1 introduced into it.

[0032] In this preferred embodiment, the lower section 11 has a conical or similar geometry so that it can be adapted and incrusted more effectively at the bottom of the root canal 21 of the tooth 2, thus ensuring that the root canal is sealed.

[0033] Because it will prospectively come into contact with the periapical bone that surrounds the bottom or end of the root canal 21, said lower section 11 is composed of a suitably osteointegrable material. For this purpose, it has a porous surface similar to that of the bone itself so that it can also be integrated into the bone surrounding the bottom of the root canal 21.

[0034] In this preferred embodiment, the lower section 11 of the rod 1 is composed of grade V titanium because of its favorable osteointegration properties.

[0035] In other preferred embodiments, the lower section 11 may be composed of titanium of higher than grade V, or even of titanium of lower than grade V, or another material suitable for this purpose having suitable osteointegration properties.

[0036] In other alternative embodiments, the surface of the rod 1 can be treated by means of physicochemical microtreatments or nanotreatments.

[0037] As shown schematically in FIG. 2, the central section 12 of the rod 1 is disposed along the length of the root canal 21 and must be composed of a material having sufficient flexibility to adapt itself to the shape and course of the said root canal 21.

[0038] In this preferred embodiment, the central section 12 is composed of an alloy of titanium and nickel (conventionally know as NiTi), because in addition to showing suitable flexibility, this alloy is also suitably biocompatible, with the result that it does not cause problems with rejection. In other preferred embodiments, the central section 12 may be composed of another material suitable for this purpose.

[0039] The upper section 13 of the rod 1 is already outside the root canal 21 of the tooth 2 and is sufficiently suitable for use and application in the dental implantation device.

[0040] In this preferred embodiment, as can be seen in FIG. 1, the upper section 13 of the rod 1 has a post-type prolongation 14. Said post 14 is used in reconstruction of the dental filling. The post 14 in turn can comprise a slot 15 for the insertion of an applicator 16. In this case, there is therefore no need for an additional metallic component or other material for the dental reconstruction, as the end of the applicator 16 itself fulfills this role.

[0041] For placement purposes, the applicator 16 comprises a suitable small pin 17 that is introduced into the slot 15 for radiological monitoring and selection of the suitable applicator 16.

[0042] In the dental implantation device of the present invention, the central section 12, which is suitably flexible for insertion and extension along the interior of the root canal 21, also comprises a coating 3 of a flexible material that is biocompatible with the interior of the root canal 21.

[0043] A material that is highly suitable for use in the coating 3 due to its properties of biocompatibility and flexibility is gutta-percha. In FIGS. 1 and 2, said coating 3 is shown in bold for purposes of improved clarity.

[0044] In some preferred embodiments, before the rod 1 is introduced into the root canal 21, the coating 3 of gutta-percha can be heated so that it melts and takes on a fluid state, thus allowing it to penetrate more readily into the interstices of the root canal 21 and ensuring that it is properly sealed.

[0045] Because of its favorable properties of biocompatibility and flexibility, the gutta-percha of the coating 3 penetrates into the interstices of the inner walls of the root canal 21, thus ensuring that said root canal is properly and effectively sealed.

[0046] In other preferred embodiments, the coating 3 of gutta-percha can be accompanied by endodontic or similar cement in order thus to ensure the required sealing of the root canal 21.

[0047] The general geometry of the rod 1 can be adapted to that of the root canal 21 or to the instruments employed by the professional in using the dental implantation device of the invention.

[0048] The suitable and effective sealing of the interior of the root canal 21 of the tooth 2 provided by using the dental implantation device of the present invention prevents the establishment and proliferation of bacteria via the interior of said root canal and the resulting undesirable infections this would entail.

[0049] The details, shapes, dimensions, and other accessory elements, as well as the materials used in producing the dental implantation device of the present invention, may be replaced as desired by others that are technologically equivalent and depart neither from the essential nature of the invention nor from the scope defined by the claims attached below.