CN210204958U

CN210204958U - Dental implant

Info

Publication number: CN210204958U
Application number: CN201920830712.4U
Authority: CN
Inventors: Wuxing Wang; 王五星; Chuanwei Yi; 易传伟
Original assignee: Dongguan Ante Medical Devices Co ltd
Current assignee: Guangdong ante dental Co.,Ltd.
Priority date: 2019-05-31
Filing date: 2019-05-31
Publication date: 2020-03-31
Anticipated expiration: 2029-05-31

Abstract

The utility model discloses a dental implant, dental implant includes: a cylindrical section; the conical section is connected with the cylindrical section, and the taper of the conical section deviates from the cylindrical section and is gradually reduced; and the tail cone section is arranged at one end of the conical section, which deviates from the cylindrical section, the formed taper angle of the tail cone section is larger than that of the conical section, and the outer surfaces of the cylindrical section and the conical section are provided with thread parts. The utility model discloses technical scheme aims at increasing the area of contact with the ossicle, improves the stability after the dentistry planting body is planted, guarantees bulk strength.

Description

Dental implant

Technical Field

The utility model relates to the technical field of medical equipment, in particular to dental implant.

Background

In the process of dental implantation, a biocompatible metal artificial implant is usually implanted into a tooth bone at a tooth missing position, and the artificial implant is used as a base for installing a healing abutment and a crown through the close combination of the artificial implant and the tooth bone. Some current implants are the obconic setting, though this structure makes artificial implant screw in alveolar bone more easily, and the screw in helping hand is little, but nevertheless makes the area of contact of artificial implant and alveolar bone limited, and the surface contact point is too few, and the formation speed of bone tissue is slower to lead to stability not high enough, easily not hard up, if increase the screw depth for improving stability, then can lead to implanting to be required torsion increase, and then lead to the sclerotin impaired, cause the harm to the patient.

The above is only for the purpose of assisting understanding of the technical solutions of the present application, and does not represent an admission that the above is prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dentistry planting body aims at increasing the area of contact with the ossicle, improves the stability after dentistry planting body plants, guarantees bulk strength.

In order to achieve the above object, the present invention provides a dental implant, including:

a cylindrical section;

the conical section is connected with the cylindrical section, and the taper of the conical section is gradually reduced away from the cylindrical section;

and the tail cone section is arranged at one end of the cylindrical section, the formed taper angle of the tail cone section is larger than that of the conical section, and the outer surfaces of the cylindrical section and the conical section are provided with thread parts.

In an embodiment of the present application, a surface of an end of the caudal vertebra segment facing away from the cylindrical segment is an arc-shaped surface.

In one embodiment of the present application, the end cone segments form a taper angle in the range of 110 ≦ β ≦ 130.

In one embodiment of the present application, the length of the cylindrical section has a value of L1, and the length of the conical section has a value of L2, 2 ≦ L1/L2 ≦ 5.

In an embodiment of the present application, the threaded portion at the tapered section is provided with a cutting groove.

In an embodiment of the application, the cutting groove includes a positive edge and a tangential edge that are connected, a cutting direction of the tangential edge is the same as a screwing-in direction of the threaded portion, a groove depth of the cutting groove formed by the tangential edge is gradually increased from a top wall of the threaded portion toward a bottom wall of the threaded portion, and the positive edge is perpendicular to an outer surface of the tapered section.

In an embodiment of the present application, the cutting grooves are formed in a plurality, and the cutting grooves are spaced apart from each other along an extending direction of the dental implant.

In an embodiment of the present application, the profile angle of the threaded portion ranges from 40 ° ≦ α ≦ 50 °.

In an embodiment of the present application, the dental form angle is formed with an upper top surface and a lower bottom surface which are oppositely arranged in the extending direction of the dental implant, and an included angle between the lower bottom surface and a horizontal plane is smaller than an included angle between the upper top surface and the horizontal plane.

In an embodiment of the application, the pitch of the thread part is more than or equal to 0.5mm and less than or equal to 1.5 mm.

The utility model discloses technical scheme is through setting up the dentistry planting body into the cylindricality section and the toper section that are connected, and locate the caudal vertebra section that the toper section deviates from the one end of cylindricality section, cylindricality section and toper section surface are equipped with screw thread portion, increased the contact surface area with the ossicle through setting up the cylindricality section, stability has been improved, and the conicity angle that forms of caudal vertebra section is greater than the conicity angle that the toper section formed, thereby because the contact area of the bottom that sets up of caudal vertebra section has further increased the dentistry planting body and ossicle, the ossicle attachment point has been increased, thereby long-term stability is high after making the bone tissue form, firm difficult not hard up, the bulk strength has been guaranteed.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, 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 the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural view of an embodiment of the dental implant of the present invention;

fig. 2 is a schematic structural view of another view angle of the dental implant of the utility model;

FIG. 3 is a cross-sectional view of the dental implant of FIG. 2;

fig. 4 is a partially enlarged view of a portion a in fig. 3.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Dental implant	30	Caudal vertebra segment
10	Cylindrical section	31	Arc-shaped surface
				20	Conical section	40	Screw thread part
21	Cutting groove	41	Tooth form angle
				211	Tangential blade	411	Upper top surface
212	Positive edge	412	Lower bottom surface

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

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 efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (such as upper, lower, left, right, front and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present application, unless expressly stated or limited otherwise, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be fixedly connected or detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, descriptions in the present application as to "first", "second", and the like are for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicit to the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a dental implant 100.

In an embodiment of the present invention, the dental implant 100 includes:

a cylindrical section 10;

the conical section 20, the conical section 20 is connected with the cylindrical section 10, the taper of the conical section 20 deviates from the cylindrical section 10 and is gradually reduced;

and the tail cone section 30, the tail cone section 30 is arranged at one end of the conical section 20 departing from the cylindrical section 10, the formed taper angle of the tail cone section 30 is larger than that of the conical section 20, and the outer surfaces of the cylindrical section 10 and the conical section 20 are provided with thread parts 40.

Wherein the taper angle is in particular the angle formed between two generatrices of a cross section through the central axis of the dental implant 100. The cross-section of the dental implant 100 may be a circular structure, and the cylindrical section 10, the conical section 20, and the caudal vertebra section 30 are integrated to simplify the structure and facilitate the process molding, and the overall structural strength structure is ensured during the installation. In addition, the outer surface of the dental implant 100 in an embodiment of the present application is the pure titanium dental implant 100 that is sand blasted, acid etched or surface oxidized, and the surface sand blasted, acid etched or surface oxidized can increase the torque resistance, bone attachment surface area and tooth bone attachment force of the implant, and improve stability compared to a smooth implant surface.

The utility model discloses technical scheme is through setting up dental implant 100 into the cylindricality section 10 and the toper section 20 that are connected, and locate toper section 20 and deviate from the caudal vertebra section 30 of the one end of cylindricality section 10, cylindricality section 10 and toper section 20 surface are equipped with screw thread portion 40, increased the contact surface area with the ossicle through setting up the cylindricality section, stability has been improved, and the conicity angle that forms of caudal vertebra section 30 is greater than the conicity angle that toper section 20 formed, thereby because caudal vertebra section 30's setting has further increased dental implant 100's bottom and the area of contact of ossicle, the ossicle attachment point has been increased, thereby long-term stability is high after making the bone tissue form, it is firm difficult not hard up, whole intensity has been guaranteed.

Referring to fig. 3 and 4, in an embodiment of the present application, the surface of the end of the caudal vertebra segment 30 facing away from the cylindrical segment 10 is an arc-shaped surface 31. It can be understood that the surface of the end of the caudal vertebra segment 30 departing from the cylindrical segment 10 is set as an arc surface 31, so that when the implant is installed on the alveolar bone, the contact area between the bottom end of the dental implant 100 and the alveolar bone can be further enlarged, the overall strength of the formed bone tissue is enhanced, and the stability is improved; furthermore, stress concentration at the tip site can be avoided and damage of bone tissue due to the tip site when implanted can be reduced.

Further, the range of the taper angle β formed by the tail cone section 30 is 110 ≦ β ≦ 130, it should be noted that when the range of the taper angle β formed by the tail cone section 30 is less than 110, the taper angle of the taper section 20 is still much less than 110 as the taper angle of the taper section 20 is less than the taper angle β of the tail cone section 30, such that the contact area of the taper section 20 with the dental bone tissue is small, such that the stability of the bone tissue after formation is not guaranteed, whereas when the range of the taper angle β formed by the tail cone section 30 is greater than 130, such that the taper angle β is more resistant during implantation and thus not easily implanted, such that the bone tissue receives a greater force during implantation of the dental implant 100, such that the energy generated during application of force is converted into heat, such that the heat generated during implantation is more harmful to the bone tissue during surgery, such that the taper angle β formed by the tail cone section 30 is set to a value within a range of 110 ≦ 30 to ensure that the drill head angle 120 is more easily manufactured during the implantation of the dental implant 100, such that the drill is more easily manufactured and the heat generated during the application of the dental implant 120 is not more easily manufactured, such that the drill is not more easily manufactured by the drill 120.

Referring to FIGS. 1 and 2, in one embodiment of the present application, the length of the cylindrical section 10 has a value of L1, and the length of the conical section 20 has a value of L2, 2L 1/L2 5. The structure of the cylindrical section 10 is easy to prepare holes or a hole preparation tool is relatively simple, the structure of the conical section 20 can sense the incremental increase of the implantation resistance and can obtain a proper bone compression effect when the conical section is implanted into the dental bone, so that the ratio of the length value L1 of the cylindrical section 10 to the length value L2 of the conical section 20 is set to be more than or equal to 2 and less than or equal to L1/L2 and less than or equal to 5, the cylindrical section 10 can improve the contact area of the dental implant 100 and the dental bone tissue, and meanwhile, the conical section 20 can enable the dental implant 100 to be conveniently implanted into the dental bone, so that the ratio of L1/L2 is in the interval value of 2 to 5.

Referring to fig. 1 and 2 in combination, in an embodiment of the present application, the threaded portion 40 at the tapered section 20 is provided with a cutting groove 21. The cutting groove 21 may be formed by a turning process, etc., and the cutting groove 21 is formed in the threaded portion 40 of the tapered section 20, so that the tapered section 20 is further conveniently screwed into the tooth bone, the contact area of the tooth bone is further increased, and the stability is further improved.

Further, the cutting groove comprises a positive edge 212 and a tangential edge 211 which are connected, the cutting direction of the tangential edge 211 is the same as the screwing direction of the threaded portion 40, the groove depth of the cutting groove formed by the tangential edge 211 is gradually increased from the top wall of the threaded portion 40 to the bottom wall of the threaded portion 40, and the positive edge 212 is perpendicular to the outer surface of the tapered section 20. It can be understood that, when the dental implant 100 is initially implanted into the tooth bone, the tangential blade 211 cuts into the tooth bone, and the groove depth of the cutting groove formed by the tangential blade 211 gradually increases from the top wall of the threaded portion 40 toward the bottom wall of the threaded portion 40, so that a part of the tissue of the tooth bone is inserted into the cutting groove 21 formed by the tangential blade 211 and is abutted against the positive blade 212, thereby increasing the contact area between the dental implant 100 and the tooth bone and improving the stability.

Alternatively, a plurality of cutting grooves 21 are formed, and the plurality of cutting grooves 21 are disposed at intervals along the extending direction of the dental implant 100. It can be understood that the plurality of cutting grooves not only facilitates the implantation of the dental implant 100 into bone tissue, but also increases the contact area with bone, improves stability, and facilitates osseointegration.

Referring to FIGS. 3 and 4, in one embodiment of the present application, the profile angle 41 of the threaded portion 40 is in the range of 40 DEG to α DEG to 50 DEG, and in order to allow the dental implant 100 to be implanted into bone tissue without radial clearance between the thread fits and with good tightness, the profile angle 41 α of the threaded portion 40 is in the range of 40 DEG to α to 50 deg.

Further, the dental implant 100 has the upper top surface 411 and the lower bottom surface 412 oppositely arranged in the extending direction of the dental implant 100, the included angle between the lower bottom surface 412 and the horizontal plane is smaller than the included angle between the upper top surface 411 and the horizontal plane, because the range value of the dental angle 41 α is more than or equal to 40 degrees and less than or equal to α degrees and less than or equal to 50 degrees, when the included angle between the bottom surface and the horizontal plane is smaller than the included angle between the upper top surface 411 and the horizontal plane, the upper top surface 411 is relatively inclined, and the lower bottom surface 412 is relatively flat, in the present application, the thread depth of the thread part 40 extends from one end of the cylindrical section 10 departing from the conical section 20 to the tail cone section 30 to be gradually distributed, and exits from the end of the tail cone section 30, so that the dental implant 100 integrally presents the structure of an outer column inner cone, and further the preparation hole is relatively simple and easy, and simultaneously, the advantage of a cone shape can be obtained, namely, the conical section 20 can sense the implantation resistance and can obtain a proper bone compression effect, and increase the contact area between the dental implant 100 and the bone tissue.

Optionally, the pitch P of the threaded portion 40 is 0.5mm P1.5 mm. In the present application, each pitch P of the thread portion 40 may be the same in size, such an invariable thread is relatively simple to manufacture and has a low cost, and each pitch P of the thread portion 40 is gradually shortened along the extending direction of the dental implant 100, such a variable thread may generate a compression effect between bone tissues during the implantation process, so as to improve the locking capability, and the range of the middle pitch P in the present embodiment is set to be 0.5mm or more and P or less than 1.5mm, so as to facilitate the thread portion 40 to be screwed into the bone tissues better and ensure the matching of the two.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. A dental implant, comprising:

a cylindrical section;

2. Dental implant according to claim 1, wherein the surface of the end of the caudal vertebra segment facing away from the cylindrical segment is an arc-shaped surface.

3. A dental implant according to claim 1, wherein the angle of taper formed by the caudal vertebral segment ranges from 110 ° β ° 130 °.

4. Dental implant according to claim 1, characterised in that the length of the cylindrical section has a value of L1 and the length of the conical section has a value of L2, 2. ltoreq.L 1/L2. ltoreq.5.

5. Dental implant according to claim 1, wherein the threaded portion at the conical section is provided with cutting grooves.

6. The dental implant of claim 5, wherein the cutting flutes comprise a forward edge and a tangential edge which are connected to each other, the cutting direction of the tangential edge is the same as the screwing direction of the threaded portion, the cutting flutes formed by the tangential edge have a flute depth which gradually increases from the top wall of the threaded portion toward the bottom wall of the threaded portion, and the forward edge is perpendicular to the outer surface of the tapered section.

7. The dental implant of claim 5, wherein the plurality of cutting flutes are defined therein, and the plurality of cutting flutes are spaced apart along the extension direction of the dental implant.

8. A dental implant according to any one of claims 1 to 7, wherein the profile angle of the threaded portion has a value in the range 40 ° ≦ α ≦ 50 °.

9. Dental implant according to claim 8, wherein the profile angle is formed with oppositely arranged upper and lower bottom surfaces in the extension direction of the dental implant, the lower bottom surface having a smaller angle to the horizontal than the upper top surface.

10. The dental implant of claim 8, wherein the pitch of the threaded portion is 0.5mm P1.5 mm.