CN220967440U - Dental implant - Google Patents

Abstract

The utility model discloses a dental implant, which relates to the technical field of oral implantation, and relates to a conical main body capable of being implanted into an alveolar bone, wherein the main body comprises a thin end and a thick end, the diameter of the thick end to the thin end is gradually reduced, the top of the thick end is provided with a mounting hole capable of being used for mounting a base, the outer surface of the main body is provided with a self-tapping thread with a forward spiral direction, the outer surface of the main body is provided with a spiral cutting groove, the spiral direction of the cutting groove is reverse, and the inner wall of a cavity can be cut when the main body is reversed by arranging the spiral cutting groove with the reverse spiral direction of the self-tapping thread, so that the size step difference between the cavity and the main body is reduced, and the initial stability of dental implantation can be conveniently and safely realized while the initial stability of dental implantation is improved.

Description

Dental implant

Technical Field

The utility model belongs to the technical field of oral implantation, and particularly relates to a dental implant.

Background

The dental implant is also called as a dental implant, and is also called as an artificial tooth root, the dental implant is implanted into upper and lower alveolar bones of a tooth-missing part of a human body in a surgical operation mode in treatment, after a plurality of months, an operation wound heals, and then a base, a dental crown and other parts are arranged on the upper part of the dental implant, so that a prosthetic tooth is formed. Before the dental implant is implanted into the alveolar bone, a cavity is needed to be prepared in advance on the alveolar bone so as to implant the dental implant, and the external thread of the dental implant has a certain level difference with the cavity, so that the external thread and the bone are embedded together, and the implant is ensured to be firm and not to fall off.

In order to provide a dental implant with better initial stability, there are generally two methods: firstly, the size of the cavity is not changed, and the contact area with the bone is larger, more sufficient and more stable by changing the height and the width of the external thread of the dental implant. Secondly, the size of the planting hole is reduced, so that the level difference between the implant and the planting hole is also increased, and a better initial torque value can be obtained. Since the size and shape of the dental implant are determined at the time of manufacturing, the latter method is generally adopted in the operation to improve the initial stability, and the method can bring a certain difficulty to clinical operation, so that doctors need to prepare holes with different sizes through experience and influence on CT to distinguish different bones.

The prepared hole is often not matched with the dental implant, when the dental implant is implanted for half or more, the dental implant cannot be well implanted to a designated depth due to excessive friction, and if torque is continuously increased, the bone can be extruded, so that irreversible osteonecrosis is caused. After the doctor can only take out the implant, the hole is reamed again to enlarge the hole further, and this process brings unnecessary pain to the patient, has also increased operation procedure, and the implant exposes in the air, will increase its surface pollution, has increased the infection risk when implanting once more.

Disclosure of utility model

The utility model aims to provide a dental implant to solve the defect problems in the prior art.

In order to solve the problems, the utility model adopts the following technical scheme:

The utility model provides a dental implant, includes the toper main part that can implant the alveolar bone, and the main part includes tip and thick end, and thick end to thin end diameter reduce gradually, and the mounting hole that can install the base station has been seted up at thick end top, is provided with the self-tapping screw thread that the spiral direction is forward on the surface of main part, and is equipped with helical cutting groove on the surface of main part, and the spiral direction of cutting groove is reverse.

Further, the cross section of the cutting groove is V-shaped.

Further, the cutting slot extends from a thick end to a thin end.

Further, the groove depth of the cutting groove gradually deepens from the thick end to the thin end.

Further, the cutting groove comprises a plurality of channels uniformly distributed on the periphery of the main body.

Specifically, the cutting grooves can comprise three cutting grooves which are uniformly distributed on the periphery of the main body at 120 degrees. Or the cutting grooves comprise four channels, and the four channels are uniformly distributed on the periphery of the main body at 90 degrees.

Further, the self-tapping thread adopts double-thread.

Further, the pitch of the self-tapping thread is 0.6-1.2 mm.

Further, the mounting hole is provided with at least one connecting section with a polygonal section.

Compared with the prior art, the utility model has the beneficial effects that:

1. Through setting up the heliciform cutting groove opposite with self tapping screw thread spiral direction, when tooth implant and the nest hole level difference of preparation are great, under the circumstances of frictional force increase after implanting a part, the accessible reversal main part for the cutting groove cuts the sclerotin, reduces the level difference between tooth implant and the nest hole, can continue to implant the nest hole with the main part when the main part is just rotated again, need not to take out the main part, reaming implants operation such as the security again, is favorable to improving efficiency and improves the security.

2. In the main body reverse cutting, autologous bone fragments can be attached and collected in the cutting groove, so that the combination speed of the main body and bones is increased.

Drawings

Fig. 1 is a front view of an embodiment of the present utility model.

Fig. 2 is a bottom view of an embodiment of the present utility model.

Fig. 3 is a top view of an embodiment of the present utility model.

Reference numerals in the drawings: 1. a main body; 2. a thick end; 3. a thin end; 4. self-tapping threads; 5. cutting a groove; 6. and (5) mounting holes.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, there is shown a structure of a dental implant, which comprises a tapered body 1 capable of being implanted into an alveolar bone, the body 1 comprises a thin end 3 and a thick end 2, the diameter of the thick end 2 to the thin end 3 is gradually reduced, a mounting hole 6 capable of mounting a base is formed at the top of the thick end 2, the mounting hole 6 is provided with at least one connecting section with a polygonal section, the base is also provided with a polygonal column section matched with the connecting section, the connecting section is connected with the polygonal column section, thereby playing a role of resisting the rotation of the base in the mounting hole 6, in general, the middle part of the base is provided with a through connecting hole, the connecting hole is penetrated by a central screw and then is fixedly connected with the inner thread of the mounting hole 6, and finally, a dental crown is mounted on the base, thereby forming a prosthetic tooth.

The polygonal connecting section can also be used as a hole for applying torque, the polygon can be a hexagon, and the hexagonal spanner is connected to the polygonal connecting section, so that the main body 1 is screwed into the hole by applying torque.

In order to realize that the main body 1 is efficiently and stably connected to the alveolar bone, the self-tapping screw 4 with the forward screw direction is arranged on the outer surface of the main body 1, so that when the main body 1 rotates clockwise, the self-tapping screw 4 cuts the inner wall of the cavity to form matched screw threads, thereby stably connecting the main body 1 to the alveolar bone, the self-tapping screw 4 adopts double-thread screw threads, and the main body 1 has better self-tapping performance in forward rotation, so that the implantation speed can be improved. Alternatively, the thread pitch of the self-tapping thread 4 is in the range of 0.6 to 1.2mm, for example, the thread pitch of the self-tapping thread 4 may be 0.7mm, 0.8mm, 0.9mm, 1mm, 1.1mm, or the like.

In this embodiment, in order to make the main body 1 also have the cutting performance for the cavity when reversing, the outer surface of the main body 1 is provided with the spiral cutting groove 5, the spiral direction of the cutting groove 5 is reverse, and the spiral direction of the cutting groove 5 is opposite to the spiral direction of the self-tapping screw 4, when the main body 1 rotates anticlockwise, the cutting groove 5 can cut the inner wall of the cavity, thereby enlarging the size of the cavity, reducing the size step between the cavity and the main body 1, and facilitating the connection of the main body 1 to the alveolar bone.

Specifically, the cross section of the cutting groove 5 is V-shaped, and the cutting groove is a groove body extending from the thick end 2 to the thin end 3, and has a longer length, so that the main body 1 is reversely rotated at a small angle, and the integral cutting of the cavity can be realized, and the cutting groove has the advantage of saving more labor. In addition, the groove depth of the cutting groove 5 gradually increases from the thick end 2 to the thin end 3, so that the cutting performance thereof gradually increases from top to bottom.

The cutting groove 5 can include several that the equipartition was located on the main part 1 periphery, utilizes several cutting groove 5 to cut the inner wall of hole evenly, increases the quantity of cutting groove 5 and is favorable to improving the efficiency of cutting, for example:

In some embodiments, the cutting grooves 5 comprise three cutting grooves 5 which are uniformly distributed on the periphery of the main body 1 at 120 degrees, so that the holes can be cut for one whole circle by rotating the main body 120 degrees anticlockwise.

In other embodiments, the cutting grooves 5 comprise four channels, the four channels 5 are uniformly distributed on the periphery of the main body 1 at 90 degrees, and the holes can be cut for one whole circle by rotating the main body 90 degrees anticlockwise.

During installation, a doctor firstly uses a bone drill to prepare a hole on an alveolar bone, then the thin end 3 of the main body 1 faces to the bottom of the hole, the main body 1 is implanted into the hole through an internal hexagonal wrench, after the main body 1 is implanted into a part, stronger resistance is generated, the main body 1 cannot be implanted continuously, the main body 1 can be reversely rotated anticlockwise, the inner wall of the hole is cut by the cutting groove 5, the step difference between the hole and a dental implant is reduced, and when the main body 1 is rotated clockwise again, the self-tapping performance of the self-tapping screw thread 4 is utilized, so that the hole can be implanted in a rotating manner more easily.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A dental implant, characterized in that: including the toper main part that can implant the alveolar bone, the main part includes tip and thick end, thick end extremely the tip diameter reduces gradually, the mounting hole that can install the base station has been seted up at thick end top, be provided with the self tapping screw thread that the spiral direction is forward on the surface of main part, just be equipped with helical cutting groove on the surface of main part, the spiral direction of cutting groove is reverse.

2. The dental implant of claim 1, wherein: the section of the cutting groove is V-shaped.

3. The dental implant of claim 1, wherein: the cutting slot extends from the butt end to the butt end.

4. The dental implant of claim 1, wherein: the groove depth of the cutting groove gradually deepens from the thick end to the thin end.

5. The dental implant of claim 1, wherein: the cutting groove comprises a plurality of channels uniformly distributed on the periphery of the main body.

6. The dental implant of claim 5, wherein: the cutting grooves comprise three channels, and the three cutting grooves are uniformly distributed on the periphery of the main body at 120 degrees.

7. The dental implant of claim 5, wherein: the cutting grooves comprise four channels, and the four channels are uniformly distributed on the periphery of the main body at 90 degrees.

8. The dental implant of claim 1, wherein: the self-tapping thread adopts double-thread threads.

9. The dental implant of claim 1, wherein: the pitch of the self-tapping thread is 0.6-1.2 mm.

10. The dental implant of claim 1, wherein: the mounting hole is provided with at least one connecting section with a polygonal section.