阅读说明：本技术 一种一体式牙种植体 (Integrated dental implant ) 是由 许奎雪 李宁 史春宝 史春生 康树靖 王振国 王建超 于 2020-07-28 设计创作，主要内容包括：本发明涉及医疗器械技术领域,提供了一种一体式牙种植体。包括：牙根部分,所述牙根部分一体地设置在所述一体式牙种植体的下部并能够埋植于牙槽骨内；龈内部分,所述龈内部分一体地设置在所述牙根部分的顶部,并且所述龈内部分能够埋植于盖住所述牙槽骨的牙龈内；牙冠整体部分,所述牙冠整体部分与所述龈内部分的基台设计为一体；所述牙根部分的下部设有与所述牙槽骨结合的螺纹部分,所述螺纹部分与所述龈内部分之间设有骨小梁部分。本发明的有益效果在于：骨小梁部分可以通过表面的孔隙增加与正常骨质的接触面积,从而保证骨细胞的长入,加快了临床骨结合的速率,缩短了骨整合过程,使种植体更加稳固。(The invention relates to the technical field of medical instruments, and provides an integrated dental implant. The method comprises the following steps: a root part integrally provided at a lower portion of the integrated dental implant 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 invention has the beneficial effects 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.)

1. A one-piece dental implant, comprising:

a root part (1), the root part (1) being integrally provided at a lower portion of the integrated dental implant 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 root part (1) is provided with a thread part (1.1) combined with the alveolar bone, and a trabecular bone part (1.2) is arranged between the thread part (1.1) and the gingival inner part (2).

2. The one-piece dental implant according to claim 1, wherein the trabecular bone part (1.2) has a length of 3-5 mm.

3. The one-piece dental implant according to claim 2, wherein the trabecular bone part (1.2) structure has a porosity of 70% to 80%, a filament diameter of 400 μm and a pore size of 500 μm.

4. The one-piece dental implant according to claim 3, wherein the pore morphology of the trabecular bone part (1.2) pore structure is regular or irregular in shape.

5. The one-piece dental implant according to claim 4, wherein the root portion (1) has a length of 6mm to 10mm and the root portion (1) has a diameter of 3mm to 6.5 mm.

6. The one-piece dental implant according to claim 1, wherein the thread pitch of the threaded portion (1.1) is 0.8 to 1.2, and the thread depth of the threaded portion (1.1) is 0.2mm to 0.4 mm.

7. The one-piece dental implant of claim 1, wherein the one-piece dental implant is 3D printed and molded from a tantalum metal material.

8. The one-piece dental implant according to claim 1, characterized in that the abutment of the dental crown integral part (4) and the intra-gingival part (2) is fixed by a taper fit.

9. The one-piece dental implant according to claim 8, wherein the abutment of the intra-gingival part (2) is provided with a tapered hole (3), the taper of the tapered hole (3) being 6 °.

Technical Field

The invention relates to the field of medical tools, in particular to an integrated dental implant.

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.

Disclosure of Invention

The invention aims to provide an integrated dental implant to solve the technical problems in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: a one-piece dental implant, comprising: a root part integrally provided at a lower portion of the integrated dental implant 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.

In an alternative embodiment, the trabecular part has a length of 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 alternative embodiments, the pore morphology of the trabecular bone portion pore structure is regular or irregular in shape.

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 alternative embodiment, the thread pitch of the threaded portion is 0.8-1.2 and the thread depth of the threaded portion is 0.2-0.4 mm.

In an optional embodiment, the integrated dental implant 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 invention has the beneficial effects that:

(1) the trabecular bone part of the integrated dental implant can increase the contact area with normal bone through 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.

(2) The gingival internal part of the integrated dental implant protects gingival tissues and prevents tooth roots from being exposed, and the gingival internal part cannot be contacted with the upper jaw during occlusion, so that the stability of the implant is improved, and the attractiveness is ensured.

(3) The integrated dental implant is formed by 3D printing of a tantalum metal material, is excellent in mechanical property, high in hardness and resistant to friction and abrasion, and particularly has an elastic modulus close to that of human bones, so that the stress shielding phenomenon is effectively avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for 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 overall structure view of an integrated dental implant according to an embodiment of the present invention.

Fig. 2 is a schematic view of a crown structure of the one-piece dental implant 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 problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention 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.