CN110916828A

CN110916828A - One-section dental implant with energy-absorbing ring

Info

Publication number: CN110916828A
Application number: CN201911250849.3A
Authority: CN
Inventors: 季方秋; 张春雨; 陈贤帅
Original assignee: Foshan Yihe Biotechnology Co Ltd
Current assignee: Foshan Yihe Biotechnology Co Ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-03-27

Abstract

The invention discloses a one-stage dental implant with an energy-absorbing ring, which comprises a base platform, a connecting area and a bone grafting area which are sequentially arranged from top to bottom, wherein the connecting area consists of a connecting column and the energy-absorbing ring, the energy-absorbing ring is a circular ring, a circular ring groove matched with the energy-absorbing ring is formed in the surface of the connecting column, and the base platform, the connecting area and the bone grafting area are integrally manufactured by 3D printing. The energy absorption ring is additionally arranged in the stress concentration area of the dental implant, so that the strength of the stress concentration area is effectively increased, the service life of the whole dental implant is prolonged, and meanwhile, the structure of the dental implant is more suitable for personalized design through the arrangement of a one-stage structure.

Description

One-section dental implant with energy-absorbing ring

Technical Field

The invention relates to the field of oral medicine, in particular to a dental implant.

Background

At present, the dental implant is mostly installed in the oral cavity in a threaded connection mode, a complex drilling operation is firstly carried out on the poor teeth bone of a patient, and then the dental implant and the alveolar bone are fixed together through screws. The existing dental implant is basically manufactured by a machining mode, and the structure of the existing dental implant is designed into a regular shape. In the existing research, finite element analysis and fatigue experiments prove that the stress peak concentration area of the dental implant is the neck position of the dental implant, and the stress peak concentration area is used as a design reference to optimize the structure of the dental implant.

The existing dental implant adopts a machining manufacturing mode, so that the dental implant with a special structure is difficult to process, and meanwhile, the manufacturing cost required by the dental implant with an individualized structure is high. Influenced by the constraint of the processing mode, the prior art has less optimization on the structure of the dental implant, more optimization mainly on the post-processing of the manufacturing process and low individuation degree. With the continuous improvement of 3D printing technology, the processing mode of the dental implant is changed, and how to optimize the special structure of the dental implant on the basis of the personalized 3D printing technology becomes a technical problem.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: aiming at the defects of the prior art, the one-section dental implant with the energy-absorbing ring is provided.

The solution of the invention for solving the technical problem is as follows: the utility model provides a sectional type dental implant with energy-absorbing ring, its includes base station, joining region and the bone grafting district that from the top down set gradually, the joining region comprises spliced pole and energy-absorbing ring, the energy-absorbing ring is the ring, the spliced pole surface be provided with the ring groove of energy-absorbing ring looks adaptation, base station, joining region and bone grafting district print integrated into one piece for 3D and make.

As a further improvement of the technical scheme, the upper half part of the energy absorption ring is provided with a porous structure which is uniformly distributed, and the lower half part of the energy absorption ring is of a solid structure.

As a further improvement of the technical scheme, the inner diameter of the energy absorption ring is 0.8-1.2 mm.

As a further improvement of the technical scheme, the pore diameter of the porous structure is 0.1-0.2 mm.

As a further improvement of the technical scheme, the surface of the bone grafting area is provided with an external thread.

As a further improvement of the technical scheme, the center of the base platform is provided with a threaded mounting hole along the axial direction of the base platform.

As a further improvement of the technical scheme, the upper part of the base platform is a cylinder, the middle part of the base platform is a rotator with thick middle and thin two ends, and the lower part of the base platform is an inverted circular truncated cone.

The invention has the beneficial effects that: the energy absorption ring is additionally arranged in the stress concentration area of the dental implant, so that the strength of the stress concentration area is effectively increased, the service life of the whole dental implant is prolonged, and meanwhile, the structure of the dental implant is more suitable for personalized design through the arrangement of a one-stage structure.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures are only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from them without inventive effort.

FIG. 1 is a schematic view of a dental implant of the present invention;

FIG. 2 is a schematic view of the structure of an energy absorbing ring of the present invention;

FIG. 3 is a schematic view showing the overall structure of the dental implant of the present invention;

the reference numbers in the figures illustrate: the energy-absorbing bone-grafting instrument comprises a base platform-1, a connecting area-2, a bone grafting area-3, a connecting column-21, an energy-absorbing ring-22, a circular ring groove-211, a porous structure-221, external threads-31 and a threaded mounting hole-11.

Detailed Description

The conception, the specific structure and the technical effects of the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features and the effects of the present invention. It is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and those skilled in the art can obtain other embodiments without inventive effort based on the embodiments of the present invention, and all embodiments are within the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1-3, a sectional dental implant with energy-absorbing ring, it includes base station 1, joining region 2 and the bone grafting district 3 that from the top down set gradually, joining region 2 comprises spliced pole 21 and energy-absorbing ring 22, energy-absorbing ring 22 is the ring, spliced pole 21 surface be provided with the ring recess 211 of energy-absorbing ring 22 looks adaptation, base station 1, joining region 2 and bone grafting district 3 print integrated into one piece for 3D and make.

Specifically, the connection region 2 is located between the abutment 1 and the bone grafting region 3, and is equivalent to the neck of the dental implant, i.e. the stress peak concentration region of the whole dental implant. According to the invention, the connecting area 2 is composed of the connecting column 21 and the energy-absorbing ring 22, and actually the connecting column 21 and the energy-absorbing ring 22 are integrally formed through 3D printing, namely the connecting column 21 and the energy-absorbing ring 22 are assembled through Magics software before 3D printing, and form a complete dental implant model together with the abutment 1 and the bone grafting area 3, and then the dental implant model is introduced into a 3D printer in an STL format for 3D printing and manufacturing.

Further, as a preferred embodiment, the energy absorbing ring 22 has a porous structure 221 uniformly distributed in the upper half portion and a solid structure in the lower half portion. The specific construction of the energy absorbing ring 22 of the present invention is not achievable by conventional machining. Specifically, according to the specific situation of the stress distribution of the dental implant, the stress is mainly distributed at the neck part of the dental implant, i.e. the connecting column 21 is close to the upper half part, the energy absorption effect of the porous structure 221 is more remarkable, and the lower half part is a solid structure, which is beneficial to the full combination of the lower half part of the energy absorption ring 22 and the implant structure.

In a further preferred embodiment, the energy absorbing ring 22 has an inner diameter of 0.8 to 1.2 mm. Specifically, according to finite element analysis, the range value of internal stress concentration of the dental implant is 0.8-1.2 mm when the dental implant bears load in a host body.

In a further preferred embodiment, the pore diameter of the porous structure 221 is 0.1 to 0.2 mm. Specifically, the current precision of 3D printing and manufacturing is combined, the pore diameter is controlled to be 0.1-0.2 mm optimally, pores smaller than the range are easy to sinter into solid bodies, and the strength of the porous structure larger than the range is too low.

Further as a preferred embodiment, the surface of the bone graft region 3 is provided with an external thread 31 for osseointegration of the bone graft region 3 with the alveolar bone.

Further, as a preferred embodiment, the abutment 1 is provided with a screw hole 11 at the center thereof in the axial direction, for use in attachment of a posterior prosthesis.

In a further preferred embodiment, the upper portion of the base 1 is a cylinder, the middle portion of the base 1 is a thick middle rotating body with two thin ends, and the lower portion of the base 1 is an inverted circular truncated cone.

While the preferred embodiments of the present invention have been illustrated and described, it will be understood by those skilled in the art that the present invention is not limited to the details of the embodiments shown and described, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention as set forth in the claims appended hereto.

Claims

1. The utility model provides a one-piece type dental implant with energy-absorbing ring which characterized in that: including base station, joining region and the bone grafting district that sets gradually from the top down, the joining region comprises spliced pole and energy-absorbing ring, the energy-absorbing ring is the ring, the spliced pole surface be provided with the ring groove of energy-absorbing ring looks adaptation, base station, joining region and bone grafting district print integrated into one piece for 3D and make.

2. The one-piece dental implant with an energy absorbing ring of claim 1, wherein: the upper half part of the energy absorption ring is provided with a porous structure which is uniformly distributed, and the lower half part of the energy absorption ring is of a solid structure.

3. The one-piece dental implant with an energy absorbing ring of claim 1, wherein: the inner diameter of the energy absorption ring is 0.8-1.2 mm.

4. The one-piece dental implant with an energy absorbing ring of claim 2, wherein: the pore diameter of the porous structure is 0.1-0.2 mm.

5. The one-piece dental implant with an energy absorbing ring of claim 1, wherein: the surface of the bone grafting area is provided with external threads.

6. The one-piece dental implant with an energy absorbing ring of claim 1, wherein: and the center of the base station is provided with a threaded mounting hole along the axial direction of the base station.

7. The one-piece dental implant with an energy absorbing ring of claim 1, wherein: the upper portion of base station is the cylinder, the middle part of base station is thick two thin rotator in the middle part, the lower part of base station is the radius frustum.