KR101092310B1 - Dental Implant Fixture - Google Patents

Abstract

A fixture of a dental implant is disclosed. The fixture of the dental implant of the present invention, the body portion; And a wide screw portion formed in a spiral shape on an outer surface of the body portion and implanted in a drill hole at an implantation position, wherein the height of the mountain from the outer surface of the body portion has a range of 0.4 mm to 2.0 mm. According to the present invention, even if the amount of bone is not rich or placed in the alveolar bone area of poor quality can be increased the initial fixation force than the prior art can reduce the treatment time or healing time.

Description

Dental Implant Fixtures

The present invention relates to a fixture of a dental implant, and more particularly, even when implanted into an alveolar bone area in which the amount of bone is not abundant or of poor quality, the initial fixation force can be increased compared to the prior art, thereby improving the procedure time or healing time. It relates to a fixture of a dental implant that can be reduced.

Implants are originally meant to be a substitute for recovery when tissue is lost, but dentists refer to a series of procedures for implanting artificial teeth.

To replace the lost roots (roots), a fixture made of titanium, etc., which is not rejected by the human body, is planted in the alveolar bone where the tooth falls out, and then the artificial tooth is fixed to restore the function of the tooth. It is a procedure to make.

In the case of general prosthetics or dentures, the surrounding teeth and bones are damaged over time, but the implants do not damage the surrounding dental tissues, and they have the advantage that they can be used semi-permanently because they have the same function or shape as natural teeth and do not cause tooth decay.

In the case of an artificial tooth procedure (also called an implant or an implant procedure), a predetermined drill is used to drill the implantation position, and then the fixture is implanted in the alveolar bone, the bone is fused to the bone, and then the abutment is attached to the fixture. This is done by putting the final prosthesis on the abutment.

Implants improve the function of dentures, improve the aesthetic aspects of dental prosthetic restorations, as well as dissipate excessive stress on surrounding supportive tissue, as well as single missing restorations. It also helps stabilize the teeth.

Such implants generally include fixtures that are placed as artificial roots, abutments that are coupled to the fixture, abutment screws that secure the abutments to the fixture, and artificial joints that are coupled to the abutments. Includes teeth. Here, the healing abutment (not shown) may be coupled to the fixture to maintain the binding state before the abutment is bonded to the fixture, that is, until the fixture is fused to the alveolar bone.

The fixture, which is a component of the implant, serves as an artificial tooth root as a part to be placed in the drill hole formed after the drill hole is formed in the alveolar bone using a drill or the like at the position where the implant is to be treated. Therefore, the fixture must be firmly placed in the alveolar bone.

Thus, the outer surface of the fixture is formed with a screw portion (threaded) to be firmly coupled to the inner wall portion of the alveolar bone forming the drill hole. These screws are inserted into the alveolar bone not only to allow the fixture and the alveolar bone to be firmly coupled, but also to enhance the fixing force of the fixture to the alveolar bone by increasing the contact area between the fixture and the alveolar bone.

By the way, in the conventional dental implant fixture, the alveolar bone area is not rich in bone quality or poor in quality due to the small depth of the screw portion to the body portion, that is, the height from the outer surface of the body portion to the mountain of the screw portion. In the early fixation strength is weak, there is a problem that the procedure or healing time increases.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dental implant fixture that can increase the initial fixation force and reduce the procedure time or healing time, even if the bone amount is not rich or placed in the alveolar bone region of poor quality. will be.

The object, according to the invention, the body portion; And a wide screw portion formed in a spiral shape on an outer surface of the body portion and implanted in a drill hole at an implantation position, wherein a width of a mountain from an outer surface of the body portion has a range of 0.4 mm to 2.0 mm. Achieved by fixture.

Here, the virtual outer line connecting the ends of the mountains of the wide screw portion, the vertical section is provided in the vertical direction along the longitudinal direction of the body portion from the lower end of the body portion; And an inclined section that gradually extends toward an upper end region of the body portion at the point where the vertical section ends.

The height of the mountain of the wide screw portion may be the same in both the vertical section and the inclined section.

The wide screw portion, the tip portion of the form inclined to the vertical or one side; And a curved surface portion formed on an upper surface or a lower surface of the tip portion to reduce resistance torque during implantation.

The curved portion may be an upper and a lower curved portion formed on the upper surface or the lower surface of the front end portion, respectively.

The upper and lower curved portions may be provided symmetrically with each other.

The body portion, the tapered portion of the tapered portion so as to narrow the diameter from the position adjacent to the upper end of the body portion toward the lower end; And it may include a cylindrical portion having the same diameter so as to reach the lower end of the body portion at the point where the tapered portion ends.

The inclination angle of the tapered portion may have a range of 10 degrees to 60 degrees.

It may further include an additional portion formed between the upper end of the wide screw portion and the body portion of the upper end.

A bevel portion formed at an upper corner portion of the body portion; And an implantation guide part formed in the lower end corner region of the body to reduce resistance torque during initial implantation.

It may further include a cutting edge portion formed in the wide screw portion in the circumferential direction of the body portion.

The abutment may further include an abutment coupling portion provided in an inner region of the upper end of the body portion so that the abutment is coupled thereto.

The abutment coupling portion, the first depression in the primary portion along the longitudinal direction of the body portion from the upper end of the body portion; A secondary depression formed at a lower end of the primary depression in a second depression deeper in the longitudinal direction of the body portion; And a screw groove formed along a longitudinal direction of the body portion in the central region of the secondary recessed portion to which an abutment screw for fastening the abutment is fastened.

The secondary depression may be formed in a star shape of the waveform along the circumferential direction.

The inner wall of the primary depression may form a tapered taper wall so that the diameter gradually narrows from the upper end to the lower end for strong bonding or tight bonding of the abutment.

The height of the mountain of the wide screw portion may have a range of 0.65 mm to 1.65 mm, the inclination angle of the tapered wall may have a range of 2 degrees to 6 degrees.

According to the present invention, even if the amount of bone is not rich or placed in the alveolar bone area of poor quality can be increased initial fixation force than the prior art can reduce the treatment time or healing time.

In order to fully understand the present invention, the operational advantages of the present invention, and the objects achieved by the practice of the present invention, reference should be made to the accompanying drawings which illustrate preferred embodiments of the present invention and the contents described in the accompanying drawings.

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a perspective view schematically showing a process of implantation of the fixture of the dental implant according to an embodiment of the present invention.

As shown therein, a large number of teeth 12 are arranged in the gum 11. Teeth 12 are primary digestive means for crushing food and sending them to the stomach, but may vary from person to person, but usually have about 28.

If any one of these teeth 12 is lost (when the posterior part is missing), the lost tooth 12 is not only aesthetically deteriorate but also inevitably considerably uncomfortable to chew food.

Thus, the fixture 100 is implanted as a means to replace the root 12a of the tooth 12 on the gum 11 of the lost tooth 12. Although not shown in detail in FIG. 1, the fixture 100 is implanted in the alveolar bone in the gum 11, which is preceded by a drill operation for implantation of the fixture 100 before implantation. That is, the drill hole (H) is processed at a predetermined position of the alveolar bone.

The fixture 100 may be made of titanium (Ti, Titanium) or titanium (Ti) alloy is not rejected to the human body.

Meanwhile, as described above, even in the related art, a fixture (not shown) is implanted as a means for replacing the root 12a of the tooth 12 in the alveolar bone of the gum 11 where the tooth 12 is lost. Has come. However, conventional dental implant fixtures (not shown) typically have not only a simple straight screw shape but also the depth of the thread relative to the body, i.e. the height from the outer surface of the body to the peak of the thread ( H, see Fig. 6), is small (approximately 0.3 mm to 0.35 mm), so there is no problem in the rich or high quality alveolar bone area, but in the alveolar bone area where the amount of bone is not rich or poor quality There was a problem that the initial fixation force is weak to increase the treatment time or healing time, and thus the present invention proposes a fixture 100 having an improved structure that can solve the problem.

According to the fixture 100 having the improved structure as described below, even if the bone amount is not rich or placed in the alveolar bone region of poor quality, the initial fixation force can be increased than in the prior art, thereby reducing the procedure time or healing time. .

For reference, the fixture 100 of the present invention, which will be described below, may be used when the first implant is performed or directly placed on the corresponding alveolar bone without replenishing a predetermined bone replacement material at the damaged part when the procedure fails. It may be used for emergency purposes.

2 is a side view of a fixture of a dental implant according to an embodiment of the present invention shown in FIG. 1, FIG. 3 is a view of a state in which the shape of a screw part is removed from FIG. 2, and FIG. 4 is a part of FIG. 2. 5 is an enlarged perspective view of FIG. 1, FIG. 6 is a partially enlarged view of a screw portion, and FIGS. 7A and 7B are front and rear perspective views, respectively.

As shown in these figures, the fixture 100 of the present embodiment is formed spirally in the body portion 120 and the outer surface of the body portion 120 to the drill hole (H, see Fig. 1) of the insertion position It is implanted, but includes a wide screw portion 130, the height of the mountain (H, see Figure 6) from the outer surface of the body portion 120 is formed large. Here, the height H of the mountain refers to the distance H from the outer surface of the body portion 120 to the side end of the threaded portion 130.

Prior to the description of the body portion 120, the wide screw portion 130 will be described first. As described above, a fixture (not shown) of a conventional dental implant has a height from an outer surface of the body portion to a mountain of a screw portion. Because of the small size (approximately 0.3 mm to 0.35 mm), there is a problem that the initial fixation force is weak in the alveolar bone area where the amount of bone is not abundant or poor in quality, thereby increasing the procedure time or healing time.

However, in this embodiment, the wide screw portion 130 is formed on the outer surface of the body portion 120 so that the height (H) of the mountain from the outer surface of the body portion 120 is in the range of 0.4 mm to 2.0 mm Since the screw 130 may be fused in contact with the bone in the alveolar bone in a wider range, a drill hole H (see FIG. 1) is formed in the alveolar bone area in which the amount of diarrhea bone is not rich or poor in quality. Even if the fixture 100 is placed, there is an advantage in that the initial fixation force can be increased than in the related art, thereby reducing the procedure time or the healing time.

Referring to FIGS. 2 and 3, but in particular with reference to FIG. 3, in this embodiment, an imaginary outer line connecting the ends of the mountains of the wide screw portion 130 (see the dashed lines in FIGS. 2 and 3) is a body portion ( Slope gradually extending toward the upper end region of the body portion 120 at the end of the vertical section 130a provided vertically in the longitudinal direction of the body portion 120 from the lower end of the 120, the vertical section 130a Section 130b.

The vertical section 130a serves to facilitate the placement of the fixture 100, and the inclined section 130b serves to reinforce the fixing force of the fixture 100.

In addition to the structural features of the vertical section 130a and the inclined section 130b, the wide screw section 130 has the following structural or structural features. That is, in this embodiment, the shape of the wide screw portion 130 has a tip portion 131a having a vertical or one inclined shape as shown in FIG. 6, and an upper curved portion 131b forming an upper surface of the tip portion 131a. And a lower curved portion 131c forming a lower surface of the tip portion 131a.

More specifically, the shape of the mountain of the wide screw portion 130 in the present embodiment, that is, the shape of the wide screw portion 130 in the present embodiment is different from the shape of the conventional triangular screw or square screw, and the tip portion 131a. The upper and lower surfaces thereof are machined in a convex form rather than in a straight line.

That is, as shown in Figure 6, the front end portion (131a) is provided in a substantially vertical straight line, while the upper and lower convex upper and lower curved portions 131b, 131c are formed based on the front end portion (131a) do. Of course, only one of the upper and lower curved portions 131b and 131c may be formed, but it may be preferable that the upper and lower curved portions 131b and 131c are provided symmetrically with respect to the front end portion 131a as in this embodiment. When having a feature, there is an advantage that the easy to be placed because the resistance torque is less when the fixture 100 is placed. For reference, an angle θ between the virtual straight lines (see the dotted line in FIG. 6) constituting the upper and lower curved portions 131b and 131c may be about 30 degrees, but this is not necessarily the case. In addition, although the upper and lower curved portions 131b and 131c are symmetrically provided and described above, in some cases, the upper and lower curved portions 131b and 131c may have an asymmetric shape. As a result, the upper and lower curved portions 131b and 131c have sufficient resistance torque when the fixture 100 is placed, so that the upper and lower curved portions 131b and 131c can be easily placed. The mutually open angles of the 131c and the symmetrical or asymmetrical structures of the upper and lower curved portions 131b and 131c may be appropriately changed according to a situation.

On the other hand, the body portion 120 in which the wide screw portion 130 of the above characteristics is formed, the portion forming the central stem (stem) in the fixture 100 of the present embodiment. Since the fixture 100 is implanted in the direction of the arrow of FIG. 1, the outer surface of the body portion 120 has a straight straight structure, but in this embodiment, the body portion 120 is partially so that the diameter becomes narrower from the upper portion to the lower portion. It has a tapered shape.

That is, in the conventional fixture, the body portion (not shown) was a cylindrical structure of a cylindrical type having the same cross-sectional diameter all along the length direction, whereas in the fixture 100 of the present embodiment, the body portion 120 is from the upper portion to the lower portion. It has a partially tapered shape so as to narrow in diameter.

The body portion 120, as shown in Figure 3, the tapered portion (120a) and the tapered portion of the tapered portion to be narrowed in diameter toward the lower end from the position adjacent to the upper end of the body portion 120 It has a cylindrical portion (120b) having the same diameter so as to reach the lower end of the body portion 120 at the end point 120a).

Since the cylindrical portion 120b serves to facilitate initial placement and the taper portion 120a serves to impart a strong fixing force, the cylindrical portion 120b may provide an improved effect on the placement and fixation than in the related art. In this case, the inclination angle of the tapered portion 120a may have a range of 10 degrees to 60 degrees, and may be manufactured to have an angle of 30 degrees as an embodiment, but the scope of the present invention is not necessarily limited to the numerical values thereof. none.

As described above, when the body portion 120 is manufactured to have the tapered portion 120a and the cylindrical portion 120b, the height H of the mountain of the wide screw portion 130 is a vertical section 130a and an inclined section 130b. ) Are all the same. For example, as shown in FIG. 6, when the wide screw portion 130 is spirally wound about five times, a virtual outer line connecting the ends of the mountains of the wide screw portion 130 (see the dashed line in FIGS. 2 and 3) is shown. Since the body portion 120 has a tapered portion 120a and a cylindrical portion 120b corresponding to having a vertical section 130a and an inclined section 130b, the mount of the wide screw portion 130 in the area of the five layers. The heights H are all the same. Therefore, it is possible to provide the same and even holding force in all areas at the time of implantation. For reference, the cross-sectional diameter of the body portion 120 may have a thickness of about 5.5 mm to 8.0 mm, the scope of the present invention does not need to be limited to its numerical value.

The bevel portion 121 is formed in the upper corner portion of the body portion 120, and the beetle portion 124 is formed between the uppermost wide screw portion 130 and the upper portion of the body portion 120.

The bevel portion 121 together with the dent portion 124 provides a strong holding force due to fixing in a larger area.

Referring to FIG. 3, the portion 124 is a hatched portion hatched in a region where the bevel portion 121 is located in FIG. 3. In other words, if the body portion 120 is processed in a conventional manner, but will be produced in a state that the dent portion 124 does not exist, as described above, if the body portion 120 is processed so that the dent portion 124 Since the area can be fixed as wide as the area, it is possible to provide a stronger holding force.

An implantation guide portion 122 is formed in the lower corner portion of the body portion 120. Placement guide portion 122 is provided in the outer corner region of the lower end of the body portion 120, by reducing the resistance torque at the time of initial placement, the fixture 100 of the present embodiment is easy to drill holes (H, see Fig. 1) It is a role to make the implantation. Therefore, in the present embodiment, this portion is rounded without being bent in a vertical shape as in the conventional fixture. As such, the guide guide portion 122 in which the corner area is rounded is placed in contact with the inlet area of the alveolar bone for the first time when the fixture 100 is placed, and also accurately guides the placement position of the fixture 100. It also serves as a role.

A cutting edge portion 123 is formed in the wide screw portion 130 of the lower end region of the body portion 120. The cutting edge portion 123 is formed in the wide screw portion 130 along the circumferential direction of the body portion 120, and serves to make the fixture 100 more easily due to its sharp tip. The cutting edge portion 123 may be formed in the wide screw portion 130 having a direction inclined to one side with respect to the longitudinal direction of the body portion 120, in this case, the cutting edge portion 123 is the body portion 120 It can be formed symmetrically on both sides of the). Of course, this content may not limit the scope of the present invention, the cutting edge portion 123 does not necessarily have to be formed symmetrically on both sides of the body portion 120.

Meanwhile, referring to FIGS. 4 and 5, the abutment coupling part 140 is further provided in an inner region of the upper end portion of the body 120 to couple the abutment 200 (Abutment, see FIGS. 7A and 7B).

7A and 7B, the abutment 200 will be briefly described with reference to FIGS. 7A and 7B. The abutment body 210 having a truncated cone shape and having a through hole 210a formed therein is formed at a lower end of the abutment body 210. The primary coupling part 220 and the star-shaped secondary coupling part 230 formed at the lower end of the primary coupling part 220 are provided. The primary coupling part 220 is a part that is coupled while being fitted to the primary depression 141 of the abutment coupling part 140 which will be described later, and the secondary coupling part 230 is a secondary depression of the abutment coupling part 140. It is a part that is coupled to the fitting portion 142. As described later, since the inner wall of the primary depression 141 forms a tapered wall 141a, the primary coupling portion 220 of the abutment 200 also has an outer surface tapered with the same slope as the tapered wall 141a, The shape of the secondary coupling portion 230 is provided in the same manner as the shape of the secondary depression 142.

The abutment coupling part 140 to which the abutment 200 of such a structure is coupled includes a first depression 141 which is primarily recessed along the longitudinal direction of the body portion 120 at an upper end of the body portion 120, and 1. Second depressions 142 and secondary depressions 142 which are recessed deeper in the longitudinal direction of the body portion 120 at the lower end of the primary depression 141 but are formed in the shape of a wave in the circumferential direction. It is formed along the longitudinal direction of the body portion 120 in the central region of the 142 is provided with a screw groove 143 to which abutment screw (not shown) for fastening the abutment 200 is fastened.

The primary depression 141 is a portion to which the primary coupling portion 220 of the abutment 200 (see FIGS. 7A and 7B) is coupled. At this time, the primary coupling portion 220 of the abutment 200 should be a strong coupling or close coupling within the primary depression 141 of the fixture 100, a strong coupling is made so that the coupling is not well loosened, Sealing (sealing) should be tightly coupled to eliminate the fear of infection.

Thus, the inner wall of the primary depression 141 forms a tapered taper wall 141a so that the diameter gradually narrows from the upper end to the lower end. The inclination angle of the tapered wall 141a may have a range of 2 degrees to 6 degrees similarly to the inclination angle of the outer surface of the primary coupling portion 220 of the abutment 200, so that the tapered wall 141a is formed as such a range. When the primary depression 141 is processed and the abutment 200 is coupled thereto, the primary engagement portion 220 of the abutment 200 is strongly bonded or adhered to the primary depression 141 in which the tapered wall 141a is formed. Can be combined.

The secondary depression 142 is a portion to which the secondary coupling portion 230 of the abutment 200 that has passed through the primary depression 141 is fitted while being fitted in shape. As shown in FIGS. 7A and 7B, since the secondary coupling portion 230 of the abutment 200 is formed in a star shape, the secondary depressions 142 may also be circumferentially oriented so that they can be shaped accordingly. According to the shape of the waveform star. As described above, the secondary depressions 142 are formed in a star shape of a waveform along the circumferential direction, and the secondary coupling portion 230 of the abutment 200 is fitted to fit the shape so that rotation of the abutment 200 is performed. You can prevent it.

Screw groove 143 is the primary coupling portion 220 and the secondary coupling portion 230 of the abutment 200 to the primary depression 141 and the secondary depression 142 of the abutment coupling portion 140 When each is fitted while being coupled, the abutment screw (abutment screw, not shown) passing through the through hole 210a of the abutment 200 is fastened. The screw groove 143 is manufactured to the same size as the through hole 210a of the abutment 200.

Looking briefly about the implant procedure using the fixture 100 having such a configuration, first drill holes (H) of the shape as shown in Figure 1 by forming a drilling position using a predetermined drill. At this time, the diameter of the drill groove (H) does not need to be drilled narrowly, it may be formed at the level of the conventional drill groove (H), that is, the size level of the fixture (100).

Next, the fixture 100 of the present embodiment is placed at the implantation position, and the fixture 100 is inserted into the drill groove H of the alveolar bone to be implanted.

When the fixture 100 is implanted in this way, the implantation guide portion 122 first contacts the inlet region of the alveolar bone when the fixture 100 is implanted to establish a position for implantation. Subsequently, when the fixture 100 is rotated and placed, the cutting edge portion 123 and the vertical section 130a of the wide screw portion 130 and the structural features of the cylindrical portion 120b of the body portion 120 are applied. The implantation is facilitated by the inclined section 130b of the wide screw portion 130 and the taper portion 120a of the body portion 120 when the implantation is completed, and also has a wide width screw portion having the same height H. Due to the structural feature of 130, the fixture 100 is fixed to the alveolar bone with a strong fixing force. Therefore, there is no shaking in place and it can be fused faster.

After the time when the bone fusion for the fixture 100 proceeds, the abutment 200 is coupled to the abutment coupling part 140 of the fixture 100.

First, when the abutment 200 is coupled to the abutment coupling part 140, the first coupling part 220 and the second coupling part 230 of the abutment 200 are the primary depressions 141 of the abutment coupling part 140. And are fitted into the secondary depressions 142, respectively. In this case, rotation of the abutment 200 is prevented by the coupling between the secondary coupling portion 230 of the abutment 200 and the secondary depression 142 of the abutment coupling portion 140. In addition, as the strong coupling or close coupling between the primary coupling portion 220 of the abutment 200 and the first depression 141 where the tapered wall 141a of the abutment coupling portion 140 is formed, the coupling is not easily released. Not only is it advantageous, it can also be tightly sealed to seal off the possibility of infection.

After the primary coupling portion 220 and the secondary coupling portion 230 of the abutment 200 are coupled to each other by being fitted to the primary depression 141 and the secondary depression 142 of the abutment coupling portion 140, respectively. Insert the abutment screw (abutment screw, not shown) into the through hole 210a of the abutment 200 to fasten to the screw groove 143 to complete the abutment of the abutment 200. Then, the implant procedure is completed by applying the final prosthesis to the abutment 200.

As such, according to the present embodiment, even if the bone amount is not rich or placed in the alveolar bone region of poor quality, the initial fixation force can be increased than in the prior art, thereby reducing the procedure time or healing time.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

1 is a perspective view schematically showing a process of implantation of the fixture of the dental implant according to an embodiment of the present invention.

FIG. 2 is a side view of the fixture of a dental implant according to one embodiment of the present invention shown in FIG. 1. FIG.

3 is a view of a state in which the shape of the screw portion is deleted in FIG.

4 is a partial longitudinal cross-sectional view of FIG. 2.

5 is an enlarged perspective view of FIG. 1.

6 is a partially enlarged view of a screw portion.

7A and 7B are front and rear perspective views, respectively, of the rent column.

* Explanation of symbols for the main parts of the drawings

100: fixture 120: body

120a: tapered portion 120b: cylindrical portion

121: bevel portion 122: implantation guide portion

123: cutting edge portion 130: wide screw portion

130a: vertical section 130b: inclined section

140: abutment joint

Claims (16)

Body portion; And Spirally formed on the outer surface of the body portion is implanted in the drill hole of the insertion position, including a wide screw portion having a height of the mountain from the outer surface of the body portion in the range of 0.4 mm to 2.0 mm, A virtual outer line connecting the ends of the mountains of the wide screw portion, A vertical section provided vertically along a longitudinal direction of the body portion from a lower end of the body portion; And Fixture of the dental implant, characterized in that it comprises an inclined section that gradually extends toward the upper region of the body portion at the end of the vertical section. delete The method of claim 1, The height of the acid of the wide screw portion is the fixture of the dental implant, characterized in that the same in both the vertical section and the inclined section. The method of claim 3, The wide screw portion, A tip portion of the vertical or one side inclined form; And Fixtures of the dental implant, characterized in that formed on the upper or lower surface of the distal end portion to reduce the resistance torque during implantation. 5. The method of claim 4, The curved portion is a fixture of the dental implant, characterized in that the upper and lower curved portions formed on the upper or lower surface, respectively, based on the tip portion. The method of claim 5, Fixture of the dental implant, characterized in that the upper and lower curved portions are provided symmetrically to each other. The method of claim 1, The body portion, A tapered portion that is partially tapered so that the diameter becomes narrower from the position adjacent to the upper end of the body to the lower end; And Fixture of the dental implant, characterized in that it comprises a cylindrical portion having the same diameter so as to reach the lower end of the body portion at the end of the tapered portion. The method of claim 7, wherein The inclination angle of the tapered portion is a fixture of a dental implant, characterized in that it has a range of 10 degrees to 60 degrees. The method of claim 1, Fixture of the dental implant further comprises an additional portion formed between the upper end of the wide screw portion and the upper end of the body portion. The method of claim 1, A bevel portion formed at an upper corner portion of the body portion; And The implant of the dental implant, characterized in that it further comprises an implantation guide portion formed in the lower corner portion of the body portion to reduce the resistance torque during the initial implantation. The method of claim 1, And a cutting edge portion formed on the wide screw portion in the circumferential direction of the body portion. The method of claim 1, Fixture of the dental implant further comprises abutment coupling portion provided in the inner region of the upper end of the body portion so that the abutment is coupled. The method of claim 12, The abutment coupling portion, A primary depression that is primarily recessed in the longitudinal direction of the body portion at the upper end of the body portion; A secondary depression formed at a lower end of the primary depression in a second depression deeper in the longitudinal direction of the body portion; And Fixture of the dental implant, characterized in that in the central region of the secondary recessed portion formed along the longitudinal direction of the abutment screw (abutment screw) for fastening the abutment fastening. The method of claim 13, The second recess is a fixture of the dental implant, characterized in that formed in the shape of a star of the waveform along the circumferential direction. The method of claim 13, Fixing the dental implant, characterized in that the inner wall of the primary recess for forming a strong bond or close bond of the abutment to form a tapered tapered wall to gradually narrow the diameter from the upper end to the lower end. The method of claim 15, The height of the acid of the wide screw portion has a range of 0.65 mm to 1.65 mm, The inclination angle of the tapered wall is a fixture of a dental implant, characterized in that it has a range of 2 degrees to 6 degrees.

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