CN217310646U - Dental implant - Google Patents
Dental implant Download PDFInfo
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- CN217310646U CN217310646U CN202220701697.5U CN202220701697U CN217310646U CN 217310646 U CN217310646 U CN 217310646U CN 202220701697 U CN202220701697 U CN 202220701697U CN 217310646 U CN217310646 U CN 217310646U
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Abstract
The utility model discloses a dental implant relates to the implant field, including neck and somatic part, neck and the coaxial fixed setting of somatic part, at least one deck slot has been seted up to the neck surface, slot and the coaxial setting of neck, and the somatic part includes at least one porous portion and at least one screw thread portion, and a porous portion and a screw thread portion interval in turn and coaxial fixed setting, the cross-section of porous portion are network structure, and screw thread portion is used for being fixed with the jaw spiro union. The dental implant of the utility model can improve the osseointegration degree and reduce the bone resorption.
Description
Technical Field
The utility model relates to a kind implant field, concretely relates to dental implant.
Background
Dental implants are also known as oral dental implants and are also known as artificial tooth roots. It is implanted into the upper and lower jawbone of the edentulous part of human body by means of surgical operation, and after the operation wound is healed, the false tooth repairing device is mounted on the upper portion of the false tooth repairing device.
Most of the existing dental implants are solid structures with micropores on the surfaces, the bone fusion time is longer in the initial stage of implantation, and the bone fusion degree is not high; and is prone to bone resorption which gradually reduces the volume and density of the bone tissue.
Disclosure of Invention
The utility model aims at providing a dental implant to solve the problem that above-mentioned prior art exists, can improve osseointegration degree and reduce the bone absorption.
In order to achieve the above object, the utility model provides a following scheme:
the utility model provides a dental implant, including neck and somatic part, the neck with the coaxial fixed setting of somatic part, at least one deck slot has been seted up to the neck surface, the slot with the coaxial setting of neck, the somatic part includes at least one porous portion and at least one screw thread portion, one porous portion and one screw thread portion interval in turn and coaxial fixed setting, porous portion's cross-section is network structure, screw thread portion is used for fixed with the jaw spiro union.
Preferably, the porous portion is a biomimetic bone trabecular structure.
Preferably, the porous portion has a lattice structure.
Preferably, one end of the neck part, which is far away from the body part, is provided with a base station connecting groove, and the base station connecting groove is used for being fixedly connected with a base station.
Preferably, the base connecting groove is an inner hexagonal groove.
Preferably, the base table fixing device further comprises a base table fixing screw, a threaded hole is formed in the bottom of the inner hexagonal groove, and the base table fixing screw is used for penetrating through the base table and being in threaded connection with the threaded hole so as to fix the base table in the inner hexagonal groove.
Preferably, the body portion includes one of the threaded portions and one of the porous portions, one end of the threaded portion is fixedly connected to the neck portion, and one end of the threaded portion, which is far away from the neck portion, is fixedly connected to the threaded portion.
Preferably, the body portion comprises two threaded portions and one porous portion, the ends of the porous portion are fixedly connected with one threaded portion coaxially, and one end of one threaded portion far away from the porous portion is fixedly connected with the neck portion coaxially.
Preferably, the body portion comprises two threaded portions and two porous portions, wherein both ends of one threaded portion are coaxially and fixedly connected with one porous portion, the end of one porous portion is coaxially and fixedly connected with the other threaded portion, and the end of the other porous portion is coaxially and fixedly connected with the neck portion.
Preferably, the neck portion and the body portion are integrally formed from a metal material using an additive manufacturing process.
The utility model discloses for prior art gain following technological effect:
the utility model provides a dental implant, neck and the coaxial fixed setting of somatic part, at least one deck slot has been seted up to the neck surface, slot and the coaxial setting of neck, the somatic part includes at least one porous portion and at least one screw thread portion, a porous portion and a screw thread portion interval in turn and coaxial fixed setting, the cross-section of porous portion is network structure, screw thread portion is used for fixed with the jaw spiro union, slot and mesh portion are favorable to organizing liquid infiltration, promote tissue growth, and the porous structure of mesh portion can reduce the elastic modulus of material itself, thereby can reduce stress shielding, improve the osseointegration degree and reduce the bone absorption.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural view of a dental implant provided in the present invention;
FIG. 2 is an enlarged view of a portion a of FIG. 1;
FIG. 3 is a top plan view of the dental implant of FIG. 1;
FIG. 4 is a bottom view of the dental implant of FIG. 1;
FIG. 5 is a schematic structural view of a dental implant according to the first embodiment;
FIG. 6 is a schematic structural view of a dental implant according to the second embodiment;
FIG. 7 is a schematic structural view of a dental implant according to the third embodiment
Fig. 8 is a front view of a dental implant according to the third embodiment.
In the figure: 1-neck part; 2-a body portion; 11-a trench; 12-abutment connecting grooves; 13-a threaded hole; 21-a porous portion; 22-a threaded portion; 221-self-tapping groove.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The utility model aims at providing a dental implant to solve the problem that above-mentioned prior art exists, can improve osseointegration degree and reduce the bone absorption.
In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.
The present embodiment provides a dental implant, as shown in fig. 1-8, which includes a neck portion 1 and a body portion 2, the neck portion 1 and the body portion 2 are coaxially fixed, at least one layer of groove 11 is formed on an outer surface of the neck portion 1, the groove 11 and the neck portion 1 are coaxially arranged, the body portion 2 includes at least one porous portion 21 and at least one threaded portion 22, the porous portion 21 and the threaded portion 22 are alternately spaced and coaxially fixed, a cross section of the porous portion 21 is a mesh structure, and the threaded portion 22 is used for being screwed and fixed with a jaw. After the dental implant in the embodiment is implanted into a human body, the groove 11 of the neck 1 can guide cells to grow along the direction of the horizontal groove 11, so that the gingival cells can be favorably formed to seal the edge of the dental implant, the good healing of soft tissues around the dental implant is accelerated, the long-term stability of the dental implant is ensured, the structure of the porous part 21 can reduce the elastic modulus of the material, the stress shielding is reduced, the osseointegration degree is improved, and the bone absorption is reduced.
In this embodiment, the porous portion 21 is preferably a bionic bone trabecular structure, which simulates a human bone structure and improves the bonding degree between the dental implant and the human body.
In the embodiment, the filament diameter of the cell is 0.25mm-0.35mm, preferably 0.3mm, the pore diameter is 0.25mm-0.8mm, preferably 0.3mm-0.6mm, and the porosity is 30% -80%, preferably 50% -70%. The center of the porous part 21 is provided with a reinforcing column, and the diameter of the reinforcing column is 0mm-2mm, preferably 1.5 mm.
In the embodiment, the dental implant is cylindrical, the diameter is 3-6mm, the length is 5-16mm, and the length of the neck part 1 is 2mm-3.5mm, preferably 2.5 mm; the depth of the grooves 11 is 0.05mm to 0.1mm, preferably 0.06 mm. The total length of the porous portion 21 is not less than 3mm, and the total length of the threaded portion 22 is not more than 5 mm.
In this embodiment, when the threaded portion 22 is disposed at the end of the dental implant, the side wall of the threaded portion 22 is provided with a self-tapping groove 221, so that the threaded portion 22 can be inserted into the human bone.
In this embodiment, preferably, the neck 1 has an end away from the body 2 formed with a base connecting groove 12, and the base connecting groove 12 is used for being fixedly connected with a base, so that the use is convenient. The abutment in this embodiment is used for connecting a dental implant and a crown.
In this embodiment, the base connecting groove 12 is preferably an inner hexagonal groove, which facilitates processing.
In the embodiment, the depth of the inner hexagonal groove is preferably 2.5 mm; according to different diameters of dental implants, the distance between the opposite sides can be selected to be 2.5mm or 3.5mm, and the platform transition angle is 46 degrees.
In this embodiment, the dental implant further includes a base station fixing screw, the threaded hole 13 is provided at the bottom of the inner hexagonal groove, and the base station fixing screw is used for penetrating the base station and being screwed with the threaded hole 13 to fix the base station in the inner hexagonal groove, and is fixed by using the fixing screw, so that the operation is convenient.
In this embodiment, the body 2 comprises a threaded portion 22 and a porous portion 21, wherein one end of the threaded portion 22 is fixedly connected to the neck portion 1, and one end of the threaded portion 22 away from the neck portion 1 is fixedly connected to the threaded portion 22.
In this embodiment, the neck portion 1 and the body portion 2 are integrally formed of a metal material by an additive manufacturing process.
In the embodiment, the production method of the dental implant is a metal powder bed melting additive manufacturing technology, the used raw material is spherical metal powder, and the average particle size is 10-100 um, preferably 15-53 um; the available metal powder includes medical pure titanium, titanium alloy, pure tantalum, tantalum alloy, etc. The metal powder bed melting additive manufacturing technology is a powder bed laser melting technology or a powder bed electron beam melting technology.
In this embodiment, the dental implant is cylindrical, preferably 4.5mm in diameter, preferably 10mm in length,
the length of the neck part 1 is preferably 2mm, and the depth of the groove 11 on the outer surface of the neck part 1 is preferably 0.08 mm. The threaded portion 22 is preferably 2mm in length and the porous portion 21 is preferably 6mm in length. The profile of the threaded portion 22 is preferably an isosceles triangle with a pitch of 0.6mm and a lead of 1.8 mm. The porous portion 21 is preferably a biomimetic bone trabecular structure, the cell filament diameter is preferably 0.25mm, the average pore diameter is preferably 0.5mm, and the porosity is preferably 60%. The internal connection of the dental implant is of an inner hexagonal groove structure, the distance between the opposite sides of the inner hexagonal groove is preferably 2.5mm, and the depth is 2.5 mm. The platform transition angle is 46 deg.. The dental implant is prepared by a powder bed electron beam melting additive manufacturing technology, and the used material is preferably medical spherical Ti6Al4V powder.
Example two
The present embodiment provides a dental implant which is different from the above embodiments in that the body portion 2 includes two screw portions 22 and a porous portion 21, the end portions of the porous portion 21 are fixedly connected coaxially with one screw portion 22, and one end of the one screw portion 22 away from the porous portion 21 is fixedly connected coaxially with the neck portion 1.
The dental implant of this embodiment has a cylindrical shape, a diameter of preferably 4.1mm and a length of preferably 11.5mm, and the body 2 includes a threaded portion 22, a porous portion 21 and a threaded portion 22 in this order from the top. The neck 1 is preferably 2.5mm in length and the groove 11 is preferably 0.06mm deep. The length of the screw part 22 fixedly connected with the neck part 1 is preferably 1.9mm, the length of the porous part 21 is preferably 5mm, and the length of the screw part 22 far away from the neck part 1 is preferably 2.1 mm. The thread form of the thread part 22 far away from the neck part 1 is an isosceles triangle, the thread pitch is 0.6mm, and the lead is 1.8 mm. The porous part 21 is a bionic bone trabecula structure, the cell wire diameter is 0.3mm, the average pore diameter is 0.4mm, and the porosity is 40%. The threaded portion 22 away from the neck portion 1 has 3 self-tapping grooves 221 distributed on average. The dental implant of the present embodiment is connected to an inner hexagonal structure, and the distance between the opposite sides of the inner hexagonal groove is preferably 2.5mm, and the depth is preferably 2.5 mm. The platform transition angle is 46 deg.. The dental implant is prepared by a powder bed laser melting additive manufacturing technology, and the used material is medical spherical tantalum powder.
EXAMPLE III
The present embodiment provides a dental implant which is different from the above embodiments in that the porous portion 21 is preferably of a lattice structure.
In this embodiment, the body 2 includes two threaded portions 22 and two porous portions 21, wherein both ends of one threaded portion 22 are coaxially and fixedly connected to one porous portion 21, wherein an end of one porous portion 21 is coaxially and fixedly connected to the other threaded portion 22, and an end of the other porous portion 21 is coaxially and fixedly connected to the neck 1.
The dental implant of the present embodiment has a cylindrical shape, a diameter of 3.7mm and a length of 13mm, and comprises a neck part 1 and a body part 2, wherein the body part 2 comprises a porous part 21, a thread part 22, the porous part 21 and the thread part 22 in sequence from top to bottom.
In this embodiment, the length of the neck 1 of the dental implant is 2.5mm, and the depth of the groove 11 is 0.06 mm. The length of each of the porous portions 21 is 3mm, the length of the threaded portion 22 close to the neck portion 1 is 2mm, and the length of the threaded portion 22 far from the neck portion 1 is 2.5 mm. The thread form of the thread part 22 far away from the neck part 1 is an isosceles triangle, the thread pitch is 0.6mm, and the lead is 1.8 mm.
The porous portion 21 has a structure of preferably a rhombic dodecahedron structure with a wire diameter of 0.27mm, an average pore diameter of 0.5mm, and a porosity of 65%. The threaded portion 22 away from the neck portion 1 has 3 self-tapping grooves 221 distributed on average.
The dental implant of the present embodiment is connected to an inner hexagonal structure, and the distance between the opposite sides of the inner hexagonal groove is preferably 2.5mm, and the depth is preferably 2.5 mm. The platform transition angle is 46 deg.. The dental implant is prepared by a powder bed laser melting additive manufacturing technology, and the used material is medical spherical tantalum powder.
The utility model discloses a concrete example is applied to explain the principle and the implementation mode of the utility model, and the explanation of the above example is only used to help understand the method and the core idea of the utility model; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the concrete implementation and the application scope. In summary, the content of the present specification should not be construed as a limitation of the present invention.
Claims (10)
1. A dental implant, characterized by: including neck and somatic part, the neck with the coaxial fixed setting of somatic part, at least one deck slot has been seted up to the neck surface, the slot with the coaxial setting of neck, the somatic part includes at least one porous portion and at least one screw thread portion, one porous portion and one screw thread portion interval in turn and coaxial fixed setting, the cross-section of porous portion is network structure, screw thread portion is used for fixed with the jaw spiro union.
2. The dental implant of claim 1, wherein: the porous part is of a bionic bone trabecula structure.
3. The dental implant of claim 1, wherein: the porous portion has a lattice structure.
4. The dental implant of claim 1, wherein: the neck is kept away from the one end of somatic part and has been seted up the base station spread groove, the base station spread groove is used for with base station fixed connection.
5. The dental implant of claim 4, wherein: the base station connecting groove is an inner hexagonal groove.
6. The dental implant of claim 5, wherein: still include base station fixed screw, threaded hole is seted up to interior hexagonal groove bottom, base station fixed screw is used for passing the base station with the screw hole spiro union is in order to fix the base station in the interior hexagonal inslot.
7. The dental implant of claim 2, wherein: the body portion comprises one of the threaded portions and one of the porous portions, one end of the threaded portion is fixedly connected with the neck portion, and one end of the threaded portion, which is far away from the neck portion, is fixedly connected with the threaded portion.
8. The dental implant of claim 2, wherein: the body part comprises two threaded parts and one porous part, the end parts of the porous parts are fixedly connected with the threaded parts coaxially, and one end, far away from the porous part, of the threaded parts is fixedly connected with the neck part coaxially.
9. The dental implant of claim 2, wherein: the body part comprises two threaded parts and two porous parts, wherein both ends of one threaded part are coaxially and fixedly connected with one porous part, the end part of one porous part is coaxially and fixedly connected with the other threaded part, and the end part of the other porous part is coaxially and fixedly connected with the neck part.
10. The dental implant of claim 1, wherein: the neck and the body are integrally formed of a metal material using an additive manufacturing process.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220701697.5U CN217310646U (en) | 2022-03-29 | 2022-03-29 | Dental implant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220701697.5U CN217310646U (en) | 2022-03-29 | 2022-03-29 | Dental implant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217310646U true CN217310646U (en) | 2022-08-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220701697.5U Active CN217310646U (en) | 2022-03-29 | 2022-03-29 | Dental implant |
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| Country | Link |
|---|---|
| CN (1) | CN217310646U (en) |
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- 2022-03-29 CN CN202220701697.5U patent/CN217310646U/en active Active
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