CN213156624U - Dental implant capable of promoting bone cell growth - Google Patents

Dental implant capable of promoting bone cell growth Download PDF

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Publication number
CN213156624U
CN213156624U CN202021519278.7U CN202021519278U CN213156624U CN 213156624 U CN213156624 U CN 213156624U CN 202021519278 U CN202021519278 U CN 202021519278U CN 213156624 U CN213156624 U CN 213156624U
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bone
dental implant
intra
gingival
root
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李喜旺
李宁
康树靖
史春宝
王建超
岳术同
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Hebei Chunli Hangnuo New Material Technology Co ltd
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Hebei Chunli Hangnuo New Material Technology Co ltd
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Abstract

The utility model relates to the technical field of medical equipment, a dental implant capable of promoting bone cells to grow in is provided. The method comprises the following steps: a root part integrally provided at a lower portion of the dental implant which promotes bone cell growth and capable of being embedded in an alveolar bone; an intra-gingival portion integrally provided on top of the root portion and capable of being embedded in a gingiva covering the alveolar bone; a crown integral part designed as one body with an abutment of the intra-gingival part; the lower part of the root part is provided with a thread part combined with the alveolar bone, and a trabecular bone part is arranged between the thread part and the intra-gingival part. The beneficial effects of the utility model reside in that: the trabecular bone part can increase the contact area with normal bone through pores on the surface, thereby ensuring the ingrowth of bone cells, accelerating the speed of clinical osseointegration, shortening the osseointegration process and enabling the implant to be more stable.

Description

Dental implant capable of promoting bone cell growth
Technical Field
The utility model relates to the field of medical tools, in particular to a dental implant capable of promoting bone cells to grow in.
Background
Present dental implant usually adopts shapes such as cylinder, set up the screw thread in the alveolar bone on the surface of cylinder, and present dental implant is planar structure with alveolar ridge contact surface, because the alveolar bone of alveolar ridge department is the arc terminal surface, consequently need polish the alveolar bone of alveolar ridge department, make radian and dental implant's the unanimity, lead to food waste to be detained between the tooth easily, corrode the tooth easily or arouse gum inflammation scheduling problem, stress concentration appears, can lead to the implant to appear becoming flexible equally, influence the osseointegration. The implant is mainly made of titanium and titanium alloy, and has good mechanical property and biocompatibility, so that the implant is the most widely applied material in oral implantation. However, the elastic modulus of the implant is obviously higher than that of human bone tissues, and stress shielding and stress concentration can be generated after the implant is implanted, so that the degradation and absorption of the bone tissues around the implant are triggered, and even the implant is loosened.
Besides the above defects, the prior art mainly has the following defects:
(1) in the prior art, CN105517505A discloses an integrated implant, which includes an endosseous implant part, a gum penetrating part, an insert adhering part (330), and the like, but the crown part of the implant is easy to rotate, which affects the occlusion relation of the normal oral cavity.
(2) Prior art CN204765988U discloses a loadable one-piece implant, comprising: the intra-osseous part, the intra-gingival part, the crown part of the worn tooth and the like are exposed after the operation, and the initial stability and the aesthetic property are influenced in the use process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a dental implant to solve the technical problem who exists among the prior art.
In order to achieve the above object, the utility model adopts the following technical scheme: a dental implant for promoting bone cell in-growth, comprising: a root part integrally provided at a lower portion of the dental implant which promotes bone cell growth and capable of being embedded in an alveolar bone; an intra-gingival portion integrally provided on top of the root portion and capable of being embedded in a gingiva covering the alveolar bone; a crown integral part designed as one body with an abutment of the intra-gingival part; the lower part of the tooth root part is provided with a thread part combined with the alveolar bone, the thread pitch of the thread part is 0.8-1.2mm, and the thread depth of the thread part is 0.2-0.4 mm; a trabecular bone part is arranged between the threaded part and the intra-gingival part, and the length of the trabecular bone part is 3-5 mm.
In an optional embodiment, the trabecular bone part structure has a porosity of 70-80%, a filament diameter of 400 μm and a pore size of 500 μm.
In an alternative embodiment, the root portion has a length of 6mm to 10mm and a diameter of 3mm to 6.5 mm.
In an optional embodiment, the dental implant capable of promoting the bone cell growth is formed by 3D printing of a tantalum metal material.
In an alternative embodiment, the integral crown portion and the abutment of the intra-gingival portion are fixed by a taper fit.
In an optional embodiment, a taper hole is formed in the abutment of the intra-gingival part, and the taper of the taper hole is 6 degrees.
The beneficial effects of the utility model reside in that:
(1) the utility model provides a can promote the dental implant bone trabecula part that osteocyte grew into can increase the area of contact with normal sclerotin through the hole on surface to guarantee the income of osteocyte, accelerated the speed that clinical osseointegration, shortened osseointegration process, make the implant more firm.
(2) The utility model provides a can promote the gum internal part protection gum tissue of the dental implant that osteocyte grew into and do not make the tooth root expose, can not contact with the upper jaw when the interlock, improved the stability of planting body, guaranteed the aesthetic property simultaneously.
(3) The utility model provides a can promote dental implant that osteocyte grows into adopts tantalum metal material 3D to print the shaping, and mechanical properties is excellent, and hardness is high, resistant friction and wear, especially elastic modulus is very close with human bone to "stress shelter from" phenomenon emergence has been avoided effectively.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions 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 it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic view of an overall structure of a dental implant capable of promoting bone cell ingrowth according to an embodiment of the present invention.
Fig. 2 is a schematic view of a dental crown structure of a dental implant capable of promoting bone cell ingrowth according to an embodiment of the present invention.
Wherein, the reference numbers in the figures are: 1. root portion, 1.1, thread portion, 1.2, trabecular bone portion, 2, intra-gingival portion, 3, taper hole, 4 and dental crown.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly or indirectly secured to the other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positions based on the orientations or positions shown in the drawings, and are for convenience of description only and not to be construed as limiting the technical solution. The terms "first", "second" and "first" are used merely for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. The meaning of "plurality" is two or more unless specifically limited otherwise.
Example one
Referring to fig. 1-2, the present embodiment provides a dental implant for promoting bone cell growth, including: a root part 1, the root part 1 being integrally provided at a lower portion of a dental implant which promotes the ingrowth of bone cells and being capable of being embedded in an alveolar bone, preferably, the root part 1 has a length of 6mm and the root part 1 has a diameter of 3 mm.
Specifically, the dental implant which promotes bone cell ingrowth further includes an intra-gingival part 2, the intra-gingival part 2 being integrally provided on the top of the root part 1, and the intra-gingival part 2 being capable of being embedded in a gingiva covering the alveolar bone, the intra-gingival part 2 protecting gingival tissue and not exposing the tooth root, not contacting the upper jaw at the time of occlusion, and not affecting the stability of the implant.
Further, can promote the dental implant that osteocyte grew into still includes the whole part 4 of dental crown, the whole part of dental crown is as an organic whole with the base station design of the internal part of gum 2, it is worth mentioning that the whole part 4 of dental crown is fixed through taper fit with the base station of the internal part of gum 2, be equipped with tapering hole 3 on the base station of the internal part of gum 2, tapering hole 3's tapering is 6, to the tooth column disappearance and the sufficient patient of bone mass, plant corresponding planting body according to the tooth position, the cap of healing up is sewed up on the installation of planting body top, carry out the secondary operation after a period osseointegration is stable, take out the cap of healing and assemble the whole part 4 of integral type dental crown.
In this embodiment, the lower part of the root portion 1 is provided with a threaded portion 1.1 engaging with the alveolar bone, and preferably, the pitch of the threaded portion 1.1 is 0.8mm and the depth of the thread of the threaded portion 1.1 is 0.2 mm. It is noted that the combination of the threaded portion 1.1 with the alveolar bone increases the contact area, contributing to the improvement of the initial stability.
Further, a trabecular bone portion 1.2 is provided between the threaded portion 1.1 and the intra-gingival part 2, the trabecular bone portion 1.2 having a length of 3mm, and specifically, the trabecular bone portion 1.2 has a structure having a porosity of 70%, a filament diameter of 400 μm, and a pore size of 500. mu.m. The trabecular bone part 1.2 can increase the contact area with normal bone through the pores on the surface, thereby ensuring the ingrowth of osteocytes, accelerating the clinical osseointegration rate, shortening the osseointegration process and enabling the implant to be more stable.
In addition, the dental implant capable of promoting the bone cell growth in the embodiment is formed by 3D printing of a tantalum metal material, wherein the tantalum metal is called as "parent biological metal", has excellent biocompatibility and is biologically inert; the corrosion resistance is excellent, the chemical property is stable, no inflammatory reaction is caused with tissue and body fluid, and the coating can be effectively used in human body environment for a long time; excellent mechanical property, high hardness, friction and abrasion resistance, and particularly, the elastic modulus is very close to that of human bones, thereby effectively avoiding the stress shielding phenomenon.
Example two
Referring to fig. 1-2, the present embodiment provides a dental implant for promoting bone cell growth, including: a root part 1, the root part 1 being integrally provided at a lower portion of a dental implant which promotes the ingrowth of bone cells and being capable of being embedded in an alveolar bone, preferably, the root part 1 has a length of 10mm and the root part 1 has a diameter of 6.5 mm.
Specifically, the dental implant which promotes bone cell ingrowth further comprises an intra-gingival part 2, the intra-gingival part 2 is integrally provided on the top of the root part 1, and the intra-gingival part 2 can be embedded in a gingiva covering the alveolar bone, the intra-gingival part 2 protects gingival tissue and does not expose the tooth root, does not contact with the upper jaw when occluded, and does not affect the stability of the implant.
Further, can promote the dental implant that osteocyte grew into still includes the whole part 4 of dental crown, the whole part of dental crown is as an organic whole with the base station design of the internal part of gum 2, it is worth mentioning that the whole part 4 of dental crown is fixed through taper fit with the base station of the internal part of gum 2, be equipped with tapering hole 3 on the base station of the internal part of gum 2, tapering hole 3's tapering is 6, to the tooth column disappearance and the sufficient patient of bone mass, plant corresponding planting body according to the tooth position, the cap of healing up is sewed up on the installation of planting body top, carry out the secondary operation after a period osseointegration is stable, take out the cap of healing and assemble the whole part 4 of integral type dental crown.
In this embodiment, the lower part of the root portion 1 is provided with a threaded portion 1.1 engaging with the alveolar bone, and preferably, the pitch of the threaded portion 1.1 is 1.2mm and the depth of the thread of the threaded portion 1.1 is 0.4 mm. It is noted that the combination of the threaded portion 1.1 with the alveolar bone increases the contact area, contributing to the improvement of the initial stability.
Further, a trabecular bone portion 1.2 is provided between the threaded portion 1.1 and the intra-gingival part 2, the trabecular bone portion 1.2 having a length of 5mm, and specifically, the trabecular bone portion 1.2 has a structure having a porosity of 80%, a filament diameter of 400 μm, and a pore size of 500. mu.m. The trabecular bone part 1.2 can increase the contact area with normal bone through the pores on the surface, thereby ensuring the ingrowth of osteocytes, accelerating the clinical osseointegration rate, shortening the osseointegration process and enabling the implant to be more stable.
In addition, the dental implant capable of promoting the bone cell growth in the embodiment is formed by 3D printing of a tantalum metal material, wherein the tantalum metal is called as "parent biological metal", has excellent biocompatibility and is biologically inert; the corrosion resistance is excellent, the chemical property is stable, no inflammatory reaction is caused with tissue and body fluid, and the coating can be effectively used in human body environment for a long time; excellent mechanical property, high hardness, friction and abrasion resistance, and particularly, the elastic modulus is very close to that of human bones, thereby effectively avoiding the stress shielding phenomenon.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (6)

1. A dental implant for promoting bone cell in-growth, comprising:
a root portion (1), the root portion (1) being integrally provided at a lower portion of the dental implant that promotes the growth of bone cells and being capable of being embedded in an alveolar bone;
an intra-gingival part (2), the intra-gingival part (2) being integrally provided on top of the root part (1), and the intra-gingival part (2) being capable of being embedded within a gingiva covering the alveolar bone;
a crown integral part (4) designed as one piece with the abutment of the intra-gingival part (2);
the method is characterized in that: the lower part of the tooth root part (1) is provided with a thread part (1.1) combined with the alveolar bone, the thread pitch of the thread part (1.1) is 0.8-1.2mm, and the thread depth of the thread part (1.1) is 0.2-0.4 mm; a trabecular bone part (1.2) is arranged between the threaded part (1.1) and the intra-gingival part (2), and the length of the trabecular bone part (1.2) is 3-5 mm.
2. The dental implant according to claim 1, wherein the trabecular part (1.2) structure has a porosity of 70 to 80%, a filament diameter of 400 μm and a pore size of 500 μm.
3. The dental implant for promoting bone cell ingrowth as claimed in claim 2, wherein said root portion (1) has a length of 6mm to 10mm and said root portion (1) has a diameter of 3mm to 6.5 mm.
4. The dental implant for promoting bone cell ingrowth according to claim 1, wherein the dental implant for promoting bone cell ingrowth is formed by 3D printing of a tantalum metal material.
5. The dental implant for promoting bone cell ingrowth according to claim 1, wherein said dental crown integral part (4) is fixed to the abutment of said intra-gingival part (2) by a taper fit.
6. A dental implant for promoting bone cell ingrowth according to claim 5, wherein the abutment for said intra-gingival part (2) is provided with a tapered bore (3), said tapered bore (3) having a taper of 6 °.
CN202021519278.7U 2020-07-28 2020-07-28 Dental implant capable of promoting bone cell growth Active CN213156624U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113633409A (en) * 2021-08-12 2021-11-12 佛山市安齿生物科技有限公司 Modular layered dental implant

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113633409A (en) * 2021-08-12 2021-11-12 佛山市安齿生物科技有限公司 Modular layered dental implant

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