CN220898839U

CN220898839U - Dental implant

Info

Publication number: CN220898839U
Application number: CN202322324736.1U
Authority: CN
Inventors: 李新昌; 李云龙; 刘杰; 许海
Original assignee: Weihai Wego Jielikang Biological Material Co ltd
Current assignee: Weihai Wego Jielikang Biological Material Co ltd
Priority date: 2023-08-29
Filing date: 2023-08-29
Publication date: 2024-05-07
Anticipated expiration: 2033-08-29

Abstract

The application belongs to the technical field of oral cavity dental implants, and particularly relates to a dental implant, which comprises a main body part and an implant hole, wherein the implant hole is formed in the main body part, the main body part comprises an implant shoulder part, an implant main body part and an implant cone part from top to bottom, external threads are arranged on the peripheries of the implant main body part and the implant cone part, the pitches of the external threads are the same, the tooth heights are gradually increased from top to bottom, and the tooth top widths are gradually reduced from top to bottom. The dental implant can form and press the alveolar bone from the horizontal direction and the vertical direction, so that the connection between the dental implant and the bottom end of the alveolar bone is firmer, the implantation torque of the dental implant is increased, the initial stability is increased, and the immediate support of the false tooth is realized.

Description

Dental implant

Technical Field

The application belongs to the technical field of dental implants, and particularly relates to a dental implant.

Background

Since the beginning of the 80 s of the 20 th century, oral implant science opens up a new field for the discipline, implant restoration becomes a reliable restoration means for rapidly developing the ali, and important status is obtained in the field of stomatology. Dental implants have been widely used as artificial tooth roots for denture fixing devices for the repair treatment of single tooth defects, partial tooth defects and total tooth defects in the oral cavity.

At present, the types of dental implants are various, but there are still a lot of problems, and there is a great room for improvement, wherein the dental implants do not have enough initial stability after being implanted into an alveolar bone, and a false tooth cannot be installed immediately. In recent years, more and more doctors and patients expect that dental implants can be instantly loaded, and the instant loading can greatly shorten the treatment course of implant restoration, bring the immediate functions and beauty to the patients, so how to realize the instant loading becomes a research hot spot in recent years.

Disclosure of utility model

The application aims to provide a dental implant which has higher initial stability and can be instantly provided with false teeth.

The embodiment of the application can be realized by the following technical scheme:

A dental implant, comprising a main body part and an implantation hole, wherein the implantation hole is arranged in the main body part;

The main body part comprises an implant shoulder part, an implant main body part and an implant cone part from top to bottom;

External threads are arranged on the peripheries of the implant main body part and the implant cone part, the pitches of the external threads are the same, the tooth heights are gradually increased from top to bottom, and the tooth top widths are gradually reduced from top to bottom;

The external thread is a T-shaped asymmetric thread.

Further, the thread angle of the external thread is 38 degrees, and the thread pitch is 0.8mm-1.5mm.

Further, the external threads include a first external thread corresponding to the implant body site and a second external thread corresponding to the implant body site;

the first external thread is a triangular composite thread, and the tooth angle is 60 degrees.

Further, the external thread is divided into an upper section, a middle section and a lower section from top to bottom, wherein the upper section, the middle section and the lower section correspond to the implant body position, and the lower section corresponds to the implant cone position;

the tooth height of the upper section is 0.1mm-0.8mm, and the tooth top width is 0.2mm-0.5mm;

The tooth height of the middle section is 0.25mm-0.8mm, and the tooth top width is 0.1mm-0.4mm;

the tooth height of the lower section is 0.3mm-0.8mm, and the tooth top width is 0.05mm-0.2mm.

Further, the implant shoulder is folded towards the upper end of the main body part, and an inverted cone-shaped round platform structure is formed.

Preferably, the implant shoulder periphery is provided with micro threads.

Further, the thread form angle of the micro thread is 60 degrees, the thread pitch is 0.25mm-0.7mm, the tooth height is 0.1mm-0.5mm, and the tooth top width is 0.1mm-0.3mm.

Preferably, the thread tooth top surface of the implant body part forms a cylindrical surface, and the tooth bottom surface forms a conical surface with a large upper part and a small lower part.

Preferably, the thread tooth top surface and the tooth bottom surface of the implant cone part form conical surfaces with large top and small bottom.

Preferably, at least 2 cutting grooves are formed in the periphery of the implant cone part at equal intervals, and the cutting grooves extend along the axial direction of the dental implant.

The dental implant provided by the embodiment of the application has at least the following beneficial effects:

(1) The main body part comprises an implant main body part and an implant cone part, the pitches of external threads of the implant main body part and the implant cone part are the same, the tooth heights are gradually increased from top to bottom, the tooth top widths are gradually reduced from top to bottom, and the external threads are T-shaped asymmetric threads, so that the dental implant can form and press an alveolar bone from two directions of horizontal and vertical, the connection between the dental implant and the bottom end of the alveolar bone is firmer, the implantation torque of the dental implant is increased, the initial stability is increased, and the immediate support of a false tooth is realized;

(2) The tooth height of the external thread is higher and gradually increases from top to bottom, so that the torque of the tooth implant implanted into the alveolar bone can be further increased;

(3) The main body part comprises the implant shoulder part, the implant shoulder part is folded towards the upper end of the main body part to form an inverted cone-shaped round platform structure, so that the cortical bone pressure can be reduced, and the cortical bone absorption is avoided.

(4) The micro threads are arranged on the periphery of the implant shoulder part, so that stress can be effectively dispersed, uniform stimulation to bone tissues can be maintained, and the height of the edge bone at the top end of the dental implant can be remarkably maintained.

Drawings

FIG. 1 is an overall construction view of a dental implant according to the present application;

FIG. 2 is a cross-sectional view of a dental implant according to the present application;

FIG. 3 is an enlarged view of a portion of a micro-thread according to the present application;

FIG. 4 is an enlarged view of a portion of a first external thread according to the present application;

fig. 5 is an enlarged view of a portion of an external thread according to the present application.

Reference numerals: 1. implant shoulder, 2, implant body, 3, implant taper, 31, cutting groove, 4, external thread, 42, first external thread, 43, second external thread, 51, upper section, 52, middle section, 53, lower section.

Detailed Description

The present application will be further described below based on preferred embodiments with reference to the accompanying drawings.

The terminology used in the description presented herein is for the purpose of describing embodiments of the application and is not intended to be limiting of the application. Unless specifically stated or limited otherwise, the terms "disposed," "connected," and "connected" should be construed broadly, as if they were fixedly connected, detachably connected, or integrally connected, for example; the two components can be connected mechanically, directly or indirectly through an intermediate medium, and can be communicated internally. The specific meaning of the above terms in the present application will be specifically understood by those skilled in the art.

In addition, in the description of the embodiments of the present application, various components on the drawings are enlarged or reduced for the convenience of understanding, but this is not intended to limit the scope of the present application.

Fig. 1 and 2 are respectively an overall structural view and a sectional view of a dental implant according to the present application, which includes a main body portion and an implant hole, as shown in fig. 1 and 2, which is provided in the main body portion, the implant hole being for connection with a abutment and a central screw, and the main body portion being for implantation into an alveolar bone to establish a stable connection relationship with the alveolar bone.

Further, the main body part comprises an implant shoulder part 1, an implant main body part 2 and an implant cone part 3 from top to bottom, wherein the top end of the implant shoulder part 1 is abutted with the base, and external threads 4 are arranged on the peripheries of the implant main body part 2 and the implant cone part 3 so as to realize spiral connection with alveolar bones.

Further, the pitches of the external threads 4 of the implant main body part 2 and the implant cone part 3 are the same, the tooth heights are gradually increased from top to bottom, and the tooth top widths are gradually reduced from top to bottom, so that the dental implant can form extrusion force on the alveolar bone from the horizontal direction and the vertical direction, the connection between the dental implant and the bottom end of the alveolar bone is firmer, the implantation torque of the dental implant is increased, and the initial stability is improved.

Further, the external threads 4 include a first external thread 42 and a second external thread 43, the first external thread 42 corresponds to the position of the implant body 2, and the second external thread 43 corresponds to the position of the implant cone 3, i.e. the first external thread 42 and the second external thread 43 can be set to different parameters respectively, so as to better satisfy the effect of the implant.

In some preferred embodiments of the present application, fig. 4 shows an enlarged view of a portion of the first external thread 42, as shown in fig. 4, where the first external thread 42 is a triangular compound thread, which increases the surface area and speed of implantation.

In some preferred embodiments of the present application, the profile angle a2 of the first external thread 42 is 60 °.

Further, fig. 5 shows a partial enlarged view of the external thread 4, and as shown in fig. 5, the external thread 4 is a T-shaped asymmetric thread, so that the implantation of the dental implant is smoother, excellent initial stability is easily obtained, and the stress is uniformly dispersed.

In some preferred embodiments of the application, the external thread 4 has a profile angle a3 of 38 ° and a pitch of 0.8mm to 1.5mm.

Further, as shown in fig. 1, the external thread 4 is divided into an upper section 51, a middle section 52 and a lower section 53 from top to bottom, the upper section 51, the middle section 52 correspond to the implant body 2, and the lower section 53 corresponds to the implant cone 3.

Further, the tooth height of the upper section 51 is 0.1mm to 0.8mm, and the tooth top width is 0.2mm to 0.5mm; the tooth height of the middle section 52 is 0.25mm-0.8mm, and the tooth top width is 0.1mm-0.4mm; the tooth height of the lower section 53 is 0.3mm-0.8mm, the tooth top width is 0.05mm-0.2mm, the tooth height of the external thread 4 is higher and gradually increases from top to bottom, the torque of the dental implant implanted into the alveolar bone can be further increased, the initial stability is good, and the immediate support of the false tooth can be realized.

In some preferred embodiments of the present application, the thread tooth top surface of the implant body 2 forms a cylindrical surface, the thread tooth bottom surface forms a conical surface with a large upper part and a small lower part, and the thread tooth top surface and the tooth ground surface of the implant conical part 3 form conical surfaces with a large upper part and a small lower part, so that the torque of the implant for implanting the dental implant into the alveolar bone is further increased, the initial stability of the implant after implantation is ensured, and the immediate support stability of the implant after implantation is increased.

In some preferred embodiments of the present application, the implant shoulder 1 is folded toward the upper end of the main body to form an inverted cone-shaped truncated cone structure, so that cortical bone pressure can be reduced and cortical bone resorption can be avoided.

In some preferred embodiments of the application, the implant shoulder 1 is provided with micro-threads on its periphery, which effectively distributes stresses and maintains uniform stimulation of bone tissue, significantly maintaining the marginal bone height of the dental implant tip.

Further, fig. 3 shows a partial enlarged view of the micro thread of fig. 1, and as shown in fig. 3, the thread form angle a1 of the micro thread is 60 °, the pitch is 0.25mm to 0.7mm, the tooth height is 0.1mm to 0.5mm, and the tooth tip width is 0.1mm to 0.3mm.

In some preferred embodiments of the present application, as shown in fig. 1, at least 2 cutting grooves 31 are equidistantly formed on the outer circumference of the cone portion 3 of the implant, the cutting grooves 31 extend in the axial direction of the dental implant, and the cutting grooves 31 allow the dental implant to have a self-tapping effect, so that the implantation of the implant is simpler.

In some preferred embodiments of the present application, the bottom end of the dental implant is planar, making the cutting slot 31 sharper, increasing self-tapping.

While the foregoing is directed to embodiments of the present application, other and further embodiments of the application may be devised without departing from the basic scope thereof, and the scope thereof is determined by the claims that follow.

Claims

1. A dental implant, includes main part and implantation hole, implantation hole set up in inside the main part, its characterized in that:

The main body part comprises an implant shoulder part (1), an implant main body part (2) and an implant cone part (3) from top to bottom;

The outer periphery of the implant main body part (2) and the implant cone part (3) is provided with external threads (4), the pitches of the external threads (4) are the same, the tooth heights are gradually increased from top to bottom, and the tooth top widths are gradually reduced from top to bottom;

The external thread (4) is a T-shaped asymmetric thread, the tooth angle of the external thread (4) is 38 degrees, and the thread pitch is 0.8mm-1.5mm;

The external threads (4) comprise first external threads (42) and second external threads (43), the first external threads (42) corresponding to the implant body (2) position and the second external threads (43) corresponding to the implant taper (3) position;

the first external thread (42) is a triangular composite thread, and the thread angle is 60 degrees.

2. A dental implant according to claim 1, wherein:

The external thread (4) is divided into an upper section (51), a middle section (52) and a lower section (53) from top to bottom, the upper section (51), the middle section (52) and the implant main body (2) correspond in position, and the lower section (53) and the implant cone (3) correspond in position;

the tooth height of the upper section (51) is 0.1mm-0.8mm, and the tooth top width is 0.2mm-0.5mm;

The tooth height of the middle section (52) is 0.25mm-0.8mm, and the tooth top width is 0.1mm-0.4mm;

the tooth height of the lower section (53) is 0.3mm-0.8mm, and the tooth top width is 0.05mm-0.2mm.

3. A dental implant according to claim 1, wherein:

the implant shoulder (1) is folded towards the upper end of the main body to form an inverted cone-shaped round platform structure.

4. A dental implant according to claim 1, wherein:

the periphery of the implant shoulder (1) is provided with micro threads.

5. A dental implant according to claim 4, wherein:

The tooth angle of the micro thread is 60 degrees, the pitch is 0.25mm-0.7mm, the tooth height is 0.1mm-0.5mm, and the tooth top width is 0.1mm-0.3mm.

6. A dental implant according to claim 1, wherein:

the thread tooth top surface of the implant body part (2) forms a cylindrical surface, and the tooth bottom surface forms a conical surface with big top and small bottom.

7. A dental implant according to claim 1, wherein:

The thread tooth top surface and the tooth bottom surface of the implant cone part (3) form cone surfaces with big top and small bottom.

8. A dental implant according to claim 1, wherein:

At least 2 cutting grooves (31) are formed in the periphery of the implant cone portion (3) at equal intervals, and the cutting grooves (31) extend along the axial direction of the dental implant.