KR200493322Y1 - Dental implant - Google Patents

Abstract

Disclosed is a dental implant. The dental implant according to the present invention has a fixture portion provided with a screw portion in a spiral form along the periphery of the outer wall, and an abutment body connected to the fixture portion, and is inserted into a coupling groove formed in the prosthesis to be coupled to the prosthesis. Rotation in which a rotation tool for rotating the abutment part is detachably coupled with the buttment part, provided on the outer wall of the abutment body and connected to the side wall of the coupling groove to prevent the relative rotation of the abutment part of the prosthesis and rotate the abutment part. It includes a tool joint for both jersey.

Description

Dental implant {Dental implant}

The present invention relates to a dental implant, and more particularly, to a dental implant in which a fixture and an abutment are integrally formed.

Implant refers to a replacement that restores when the original human tissue is lost, but in dentistry, it refers to a series of procedures in which artificially made teeth are implanted.

To replace the lost root (root), a fixture, a root made of titanium, which does not react to the human body, is planted in the alveolar bone from which the tooth has been pulled out, and then the artificial tooth is fixed to restore the function of the tooth. It is a procedure to do.

In the case of a general prosthesis or denture, the surrounding teeth and bones are damaged over time, but the implant does not damage the surrounding dental tissue, and it has the advantage that it can be used semi-permanently because it has the same function or shape as a natural tooth and does not cause caries.

Artificial teeth procedure (also referred to as implant or implant procedure) varies depending on the type of fixture, but after drilling the placement location using a predetermined drill, the fixture is placed in the alveolar bone and bone fused to the bone, and then the abutment is placed on the fixture. After joining the abutment, it is usually completed by placing the final prosthesis on the abutment.

Dental implants improve the function of dentures in patients with partial and complete dentition, as well as single defective tooth restorations, improve the aesthetic aspect of dental prosthetic restorations, and further disperse excessive stress applied to the surrounding supporting bone tissue. In addition to shikiming, it helps stabilize the dentition.

In general, these dental implants include a fixture that is placed as an artificial tooth root, an abutment that is coupled to the fixture, an abutment screw that fixes the abutment to the fixture, and the abutment is coupled to the abutment. Includes artificial teeth that are used. Here, before the abutment is bonded to the fixture, that is, during the period until the fixture is bone-fused to the alveolar bone, the abutment is bonded to the fixture to maintain the bonded state.

A fixture, which is a component of a dental implant, plays a role of an artificial tooth root as a part that is inserted into a drill hole formed in an alveolar bone using a drill or the like at a location where the implant is performed. To securely fix the fixture and the alveolar bone, a screw part is provided in a spiral around the outer wall of the fixture.

The above-described dental implant can be used semi-permanently, so it is also called a dental semi-permanent implant, and most of these dental semi-permanent implants require a treatment period for osseointegration of about 2 to 4 months after being placed in the alveolar bone.

Of course, it is reported that the success rate of semi-permanent dental implants is more than 90% even if the function is performed immediately after implantation without having such a prescribed treatment period. Because the disadvantages such as loss of confidence due to the loss of confidence are so great, it can be said that it is common to actually have such treatment period.

Therefore, during this treatment period, the patient stays in an edentulous state, but from the patient's point of view, it is inevitably a very painful period due to functional problems, aesthetic problems, and pronunciation problems.

In consideration of these problems, the patient can comfortably eat solid food through a temporary prosthesis (e.g., temporary dentures) even during a predetermined treatment period in which osteosynthesis is completed on the surface of the dental semi-permanent implant after placement of the dental semi-permanent implant. A dental implant that allows you to use a temporary prosthesis by combining the temporary implant to the temporary implant after placing a temporary implant having a predetermined diameter between a plurality of adjacent dental semi-permanent implants placed after extracting the natural tooth so that it can be chewed. It has been disclosed in Utility Model Registration Publication No. 20-0283023.

However, in the conventional dental implant, the outer cross section of the abutment portion formed integrally with the fixture portion is circular, and at the time of implantation, the abutment portion is inserted by combining a fastening wrench into a groove formed in the through hole penetrating the abutment portion. It has a structure to fix the temporary prosthesis by applying and filling the adhesive cement on the outer circumferential surface and the groove, such a conventional dental implant has a number of problems.

First, there is a problem in that it is difficult to remove the implant from the alveolar bone because the wrench cannot be inserted into the groove because the groove is filled with adhesive cement even if the temporary prosthesis is separated from the implant for removal of the dental implant that has been temporarily used.

Second, even during implant placement, only dental tools having an external shape corresponding to the groove can be used, so the shape of the available dental tools is limited.

third. After the temporary prosthesis is mounted on the abutment part, there is a problem that sometimes the temporary prosthesis rotates relative to the implant because the abutment part and the joint surface of the temporary prosthesis have a circular curved surface that is advantageous for rotation.

Republic of Korea Utility Model Registration Publication No. 20-0283023 (2002.07.10.)

Therefore, the problem to be solved by the present invention is to provide a dental implant that can be easily coupled to a rotating tool when placed in the alveolar bone and removed from the alveolar bone, and can prevent rotation of the installed prosthesis.

According to an aspect of the present invention, the fixture portion is provided with a screw portion in a spiral along the periphery of the outer wall; An abutment portion having an abutment body connected to the fixture portion, and inserted into a coupling groove formed in the prosthesis to be coupled to the prosthesis; And a rotation tool provided on the outer wall of the abutment body and connected to the side wall of the coupling groove to prevent relative rotation of the prosthesis with respect to the abutment part, and to rotate the abutment part. A dental implant including a combined rotation stopping tool coupling portion to be coupled may be provided.

The rotation-stopping combined tool coupling portion may be provided in a hexagonal shape along the circumferential direction of the abutment body.

The rotation-stopping combined tool coupling portion may be provided in an inclined shape whose thickness decreases toward a direction away from the fixture portion.

The abutment portion may further include a locking groove provided on an outer wall of the abutment body and engaging a locking jaw provided on the prosthesis.

The engaging groove is provided to extend along the circumferential direction of the abutment body, and may be disposed in a lower region of the rotation-stopping combined tool engaging portion.

The abutment part further includes a slip part provided on an outer wall of the abutment body, inserted into the coupling groove, and connected to a sidewall of the coupling groove to prevent relative rotation of the prosthesis with respect to the abutment part. can do.

The slip portion is disposed in an upper region of the rotation-stopping combined tool coupling portion, and may be provided in a shape having a thickness smaller than that of the rotation-stopping combined tool coupling portion.

The abutment part may further include a gingival contact part provided on an outer wall of the abutment body and contacting the gingiva.

The gingival contact portion may be provided in an inclined shape whose diameter decreases in a direction approaching the fixture portion.

The gingival contact portion may be disposed in a lower region of the engaging groove.

The gingival contact portion, the gingival contact body; And an implantation depth adjusting part connected to the gingival contact body, disposed above the fixture part, and provided in a shape having an outer diameter smaller than the outer diameter of the screw part.

The fixture part may include a fixture body provided with the screw part along an outer wall circumference; And a cutting edge portion provided in a lower portion of the fixture body.

Embodiments of the present invention are connected to the side wall of the coupling groove of the prosthesis to prevent the relative rotation of the abutment portion of the prosthesis, and the rotation-stopping combined tool coupling in which a rotating tool for rotating the abutment portion is detachably coupled By providing the part, it can be easily coupled to the tool for rotation when placed in the alveolar bone and removed from the alveolar bone, and it is possible to prevent rotation of the installed prosthesis.

1 is a view showing a state in which a dental implant is placed in a gum according to an embodiment of the present invention.
2 is a perspective view illustrating the dental implant of FIG. 1.
3 is a front view of FIG. 2.
4 is a plan view of FIG. 3.
5 is a side view of FIG. 2.
6 is a plan view of FIG. 5.
7 is a view in which the threaded portion is removed from FIG. 3.
8 is an enlarged view of part'A' of FIG. 7.

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

Hereinafter, by describing a preferred embodiment of the present invention with reference to the accompanying drawings, the present invention will be described in detail. However, in describing the present invention, a description of a function or configuration that is already known will be omitted in order to clarify the gist of the present invention.

1 is a view showing a state in which a dental implant is placed in a gum according to an embodiment of the present invention, FIG. 2 is a perspective view showing the dental implant of FIG. 1, and FIG. 3 is a front view of FIG. 2, FIG. 4 is a plan view of FIG. 3, FIG. 5 is a side view of FIG. 2, FIG. 6 is a plan view of FIG. 5, FIG. 7 is a view with a thread removed from FIG. 3, and FIG. 8 is a portion'A' of FIG. 7 It is an enlarged view of.

The dental implant 1 of this embodiment may be placed in a person to be treated and used temporarily or semi-permanently. Hereinafter, for convenience of explanation, the dental implant 1 of this embodiment is temporarily used.

As shown in FIG. 1, the dental implant 1 according to the present embodiment is a treatment period in which the osseointegration is completed on the surface of the semi-permanent fixture 5 between the semi-permanent fixtures 5 placed adjacent to each other. During temporary implantation and placement, the dental implant 1 according to the present embodiment can perform a function immediately immediately after implantation, so that when a temporary prosthesis (not shown) is mounted, it can perform a mastication function.

In addition, after a certain period of time, the semi-permanent fixture 5 is bone-fused to the alveolar bone, and then an abutment (not shown) is coupled to the semi-permanent fixture 5 through an abutment screw (not shown). Thereafter, when it is necessary to couple an artificial crown (not shown) to an abutment (not shown), the dental implant 1 of this embodiment is removed from the patient's gums M by a rotary tool.

These dental implants 1 may be made of generally pure titanium or titanium alloys, or other metals, metal alloys, or ceramics that do not have a human body rejection reaction.

These dental implants 1, as shown in Figs. 1 to 8, are connected to the fixture unit 110 and the fixture unit 110, the screw unit 112 is provided in a spiral along the outer wall circumference An abutment body 121 having an abutment body 121 that is inserted into a coupling groove (not shown) formed in a temporary prosthesis (not shown) and coupled to a temporary prosthesis (not shown), and an abutment body It is provided on the outer wall of 121 and is connected to the side wall of the coupling groove (not shown) to prevent the relative rotation of the temporary prosthesis (not shown) with respect to the abutment part 120 and to rotate the abutment part 120 It includes a rotation stopping combined tool coupling unit 130 to which a rotational tool (not shown) is detachably coupled.

The fixture unit 110 is placed in the alveolar bone. Such a fixture unit 110, as shown in detail in FIGS. 2 to 7, a fixture body 111 provided in a circular rod shape, and a screw portion provided along the outer wall circumference of the fixture body 111 ( 112).

The fixture body 111 is provided in a circular rod shape. In this embodiment, the fixture body 111 may be provided in a shape having a diameter such as 2.2mm, 2.6mm, 3.0mm.

The screw part 112 is provided along the periphery of the outer wall of the fixture body 111 and is inserted into a drill groove (not shown) formed in the alveolar bone.

Since the dental implant 1 of this embodiment is generally removed after maintaining a temporary prosthesis (not shown) for a certain period, it should be easy to place in the alveolar bone and remove it from the alveolar bone, and accordingly, the dental implant 1 It should be designed to have little resistance during the placement and removal.

To this end, the lower end area of the fixture body 111 is provided in an inclined shape so that the diameter decreases toward the bottom.

Meanwhile, a cutting edge portion 113 processed to a predetermined length for self-tapping when inserted into a drill groove (not shown) of an alveolar bone is provided at a lower end of the fixture portion 110. The cutting edge portion 113 is disposed symmetrically with respect to the imaginary central axis of the fixture body 111.

The cutting edge portion 113 is formed by cutting the fixture body 111 and the screw portion 112 to a predetermined depth. In this embodiment, two cutting edge portions 113 are processed, but the scope of the present invention is not limited thereto, and the number of cutting edge portions 113 may be provided in various ways.

The abutment unit 120 is connected to the fixture unit 110. The abutment unit 120 is coupled to a temporary prosthesis (not shown). That is, by inserting the abutment unit 120 coated with the dental adhesive on the outer wall into the coupling groove (not shown) of the temporary prosthesis (not shown), the temporary prosthesis (not shown) is mounted on the abutment unit 120 do.

This abutment part 120, as shown in detail in FIGS. 2 to 7, is connected to the fixture body 111 and is provided integrally with the fixture body 111 and the abutment body 121 , And a rotation-stopping tool coupling part 130, a locking groove 140, a slip part 150, and a gingival contact part 160, respectively provided on the outer wall of the abutment body 121.

In this embodiment, the outer wall of the abutment body 121 is connected to the side wall of the coupling groove (not shown), as shown in detail in FIGS. 2 to 7, and the abutment part of the temporary prosthesis (not shown) ( A rotation-stopping tool coupling part 130 is provided to which a rotational tool (not shown) for rotating the abutment part 120 is detachably coupled while preventing relative rotation with respect to 120).

A rotary tool (not shown) for rotating the abutment unit 120 is detachably coupled to the rotation-stopping combined tool coupling unit 130. In this embodiment, the rotation-stopping combined tool coupling part 130 is provided in a hexagonal shape along the circumferential direction of the abutment body 121.

The rotation-stopping combined tool coupling part 130 having the above-described shape is firmly and easily combined with a rotating tool (for example, a wrench, etc.) that is coupled when the fixture part 110 is placed in the bone tissue of the alveolar bone. By providing, it facilitates transmission of rotational force for implantation, and exhibits the same effect even when removed.

In addition, the rotation-stopping combined tool coupling part 130 prevents the relative rotation of the temporary prosthesis (not shown) with respect to the abutment part 120. That is, a temporary prosthesis (not shown) is mounted on the abutment unit 120 while the fixture unit 110 is placed in the alveolar bone. Therefore, the temporary prosthesis (not shown) is prevented from rotating relative to the abutment unit 120.

In addition, the rotation-stopping combined tool coupling portion 130 of the present embodiment is provided in an inclined shape whose thickness decreases in a direction away from the fixture portion 110.

In this way, the rotation-stopping combined tool coupling portion 130 is provided in an inclined shape whose thickness decreases as it moves away from the fixture portion 110, so that the rotation-stopping combined tool coupling portion 130 is a coupling groove (not shown). It can be easily inserted into the coupling groove (not shown) according to the size of the coupling groove (not shown) may be combined in a force-fitting method.

In addition, in this embodiment, on the outer wall of the abutment body 121, as shown in detail in Figs. 2 to 7, a locking projection (not shown) provided in a temporary prosthesis (not shown) is engaged A groove 140 is provided.

This engaging groove 140, as shown in detail in Figs. 7 and 8, is provided extending along the circumferential direction from the outer wall of the abutment body 121, and rotation of the combined tool coupling unit 130 It is placed in the lower area.

In this embodiment, the engaging groove 140 is inclined to gradually decrease in height in the direction from the fixture portion 110 toward the abutment portion 120, as shown in detail in FIGS. 7 and 8 The abutment side inclined to gradually increase in height in the direction from the fixture 110 to the abutment 120 and connected to the fixture side inclined side wall 141 and the fixture side inclined side wall 141 It includes a side wall 142. In this embodiment, the slope C1 of the inclined side wall 142 on the abutment side is larger than the slope C2 of the inclined side wall 141 on the fixture side.

In this way, the slope (C1) of the abutment-side inclined side wall 142 is greater than the inclination (C2) of the fixture-side inclined side wall 141, so that the locking jaw (not shown) of the temporary prosthesis (not shown) is It is stably supported by the abutment-side inclined side wall 142 so that the locking prosthesis (not shown) of the temporary prosthesis (not shown) is not easily separated from the engaging groove 140.

In addition, in this embodiment, the outer wall of the abutment body 121 is inserted into the coupling groove (not shown) and connected to the side wall of the coupling groove (not shown), as shown in detail in FIGS. 2 to 7 A slip part 150 is provided for preventing relative rotation of the prosthesis (not shown) with respect to the abutment part 120.

This slip part 150, as shown in detail in FIGS. 2 to 7, is disposed in the upper region of the rotation-stopping combined tool coupling part 130 and has a thickness smaller than the thickness of the rotation-stopping combined tool coupling part 130. Branches are provided in a shape.

In this embodiment, the slip portion 150 is inserted into the coupling groove (not shown) and connected to the sidewall of the coupling groove (not shown) to prevent the relative rotation of the temporary prosthesis (not shown) with respect to the abutment portion 120 do.

This slip part 150 is provided in a shape close to a rectangular shape as shown in FIGS. 2 to 7, so that a temporary prosthesis (not shown) can effectively prevent relative rotation with respect to the abutment part 120. I can.

In addition, in this embodiment, the outer wall of the abutment body 121 is provided with a gingival contact portion 160 in contact with the gingiva, as shown in detail in FIGS. 2 to 7. The gingival contact portion 160 is disposed in the lower region of the engaging groove 140. Here, the gingiva is a relatively soft tissue that surrounds the alveolar bone and refers to a part of the gingiva.

In this embodiment, the gingival contact portion 160 is provided in an inclined shape whose diameter decreases in a direction approaching the fixture portion 110, as shown in detail in FIGS. 2 to 7.

As described above, since the gingival contact portion 160 of the present embodiment has an inclined shape whose diameter decreases in a direction approaching the fixture portion 110, there is an advantage in that a foreign body feeling of the subject to be treated is reduced.

This gingival contact portion 160, as shown in detail in FIGS. 3 and 5, is connected to the gingival contact body 161 and the gingival contact body 161 and is disposed on the upper portion of the fixture body 111, and the threaded portion ( It includes an implantation depth control unit 162 provided in a shape having an outer diameter smaller than the outer diameter of 112).

As described above, the gingival contact body 161 and the implantation depth adjustment unit 162 are provided in an inclined shape whose diameter decreases toward the fixture unit 110 as described above.

In this embodiment, the implantation depth adjusting part 162 is provided in a shape having an outer diameter smaller than the outer diameter of the screw part 112. As such, the implantation depth control part 162 is provided in a shape having an outer diameter smaller than the outer diameter of the screw part 112, so that the gingiva interferes with the rotation of the dental implant 1 in the process of placing the dental implant 1 The degree to which it is weakened.

In addition, as described above, the implantation depth control unit 162 is provided in an inclined shape with a smaller diameter in a direction approaching the fixture unit 110, similar to the gingival contact body 161, so that the dental implant 1 ) During the implantation process, the implantation depth control unit 162 is in contact with the gingiva to limit the implantation depth of the dental implant 1.

Hereinafter, the operation of the dental implant 1 of this embodiment will be described with reference to FIGS. 1 to 8.

A predetermined drill groove (not shown) is formed by using a drill on the alveolar bone in which the semi-permanent fixture 5 is placed. Next, after the rotational tool is coupled to the rotation-stopping combined tool coupling part 130, the dental implant 1 is placed in the alveolar bone using the screw part 112 formed in the fixture part 110.

Since the rotation-stopping tool coupling part 130 of this embodiment is provided in a hexagonal shape as described above, the dental tool (for example, a wrench) and the rotation-stopping tool coupling part 130 are well engaged and the rotational tool The rotational force due to (not shown) is transmitted to the fixture unit 110 formed integrally with the abutment unit 120.

Thereafter, a dental adhesive (not shown) is applied to the outer wall of the abutment unit 120, and the abutment unit 120 is inserted into the coupling groove (not shown) of the temporary prosthesis unit (not shown). Si) is mounted on the abutment part 120.

The temporary prosthesis (not shown) mounted on the abutment unit 120 is connected to the sidewall of the coupling groove (not shown) and has a hexagonal angular shape and a rotation-stopping tool coupling unit 130, which is coupled Relative rotation of a temporary prosthesis (not shown) with respect to the abutment portion 120 is prevented by the slip portion 150 connected to the sidewall of the groove (not shown) and having a rectangular shape.

Even without applying a load to the semi-permanent fixture 5 through a temporary prosthesis (not shown) mounted on the dental implant 1, the person to be treated can immediately chew and eat solid food.

On the other hand, when a predetermined treatment period in which the semi-permanent fixture 5 is fused to the bone is completed, the dental implant 1 placed in the person to be treated is removed.

As described above, the dental implant 1 according to the present embodiment is connected to the sidewall of the coupling groove (not shown) of the temporary prosthesis (not shown), and the relative to the abutment unit 120 of the temporary prosthesis (not shown). It is easy to use the tool for rotation when it is placed in the alveolar bone and removed from the alveolar bone by providing a rotation-stopping tool coupling part 130 in which a rotation tool that prevents rotation and rotates the abutment part 120 is detachably coupled. It can be combined to prevent rotation of the installed temporary prosthesis (not shown).

Although the present embodiment has been described in detail with reference to the drawings above, the scope of the present embodiment is not limited to the above-described drawings and description.

As described above, the present invention is not limited to the described embodiments, and it is obvious to those of ordinary skill in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, it should be said that such modifications or variations belong to the claims of the present invention.

110: fixture part 111: fixture body
112: threaded portion 113: cutting edge portion
120: abutment part 121: abutment body
130: rotation stopping combined tool engaging portion 140: engaging groove
141: fixture side inclined side wall 142: abutment side inclined side wall
150: slip portion 160: gingival contact portion

Claims (12)

Fixture portion provided with a screw portion in a spiral along the outer wall circumference;
An abutment unit having an abutment body connected to the fixture unit, and inserted into a coupling groove formed in the prosthesis to be coupled to the prosthesis; And
It is provided on the outer wall of the abutment body, is connected to the side wall of the coupling groove to prevent relative rotation of the abutment portion of the prosthesis, and a rotation tool for rotating the abutment portion is detachably coupled Including a combined tool engaging portion for stopping rotation,
The abutment part,
It is provided on the outer wall of the abutment body, and includes a locking groove for engaging the locking jaw provided on the prosthesis,
The engaging groove is,
It is provided to extend along the circumferential direction of the abutment body, and is disposed in a lower region of the rotation-stopping combined tool coupling part,
The engaging groove is,
A fixture-side inclined side wall inclined to gradually decrease in height from the fixture portion toward the abutment portion; And
And an abutment-side inclined side wall connected to the fixture-side inclined side wall and inclined to gradually increase in height in a direction from the fixture portion toward the abutment portion,
Dental implant, characterized in that the inclination of the abutment-side inclined sidewall is greater than that of the fixture-side inclined sidewall. The method of claim 1,
The rotation stopping combined tool coupling portion,
Dental implant, characterized in that provided in a hexagonal shape along the circumferential direction of the abutment body. The method of claim 2,
The rotation stopping combined tool coupling portion,
Dental implant, characterized in that it is provided in an inclined shape whose thickness decreases in a direction away from the fixture part. delete delete The method of claim 1,
The abutment part,
A dental implant further comprising a slip portion provided on an outer wall of the abutment body and inserted into the coupling groove and connected to a sidewall of the coupling groove to prevent relative rotation of the prosthesis with respect to the abutment portion. The method of claim 6,
The slip part,
A dental implant, characterized in that it is disposed in an upper region of the rotation-stopping combined tool coupling portion, and provided in a shape having a thickness smaller than that of the rotation-stopping combined tool coupling portion. The method of claim 1,
The abutment part,
A dental implant provided on the outer wall of the abutment body and further comprising a gingival contact portion in contact with the gingiva. The method of claim 8,
The gingival contact portion,
Dental implant, characterized in that it is provided in an inclined shape in which the diameter decreases in a direction approaching the fixture part. The method of claim 8,
The gingival contact portion,
Dental implant, characterized in that disposed in the lower region of the engaging groove. The method of claim 9,
The gingival contact portion,
Gingival contact body; And
A dental implant comprising an implantation depth adjusting part connected to the gingival contact body, disposed on the fixture part, and provided in a shape having an outer diameter smaller than the outer diameter of the screw part. The method of claim 1,
The fixture part,
A fixture body provided with the threaded portion along the periphery of the outer wall; And
Dental implant comprising a cutting edge portion provided in the lower portion of the fixture body.

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