WO2019194414A1

WO2019194414A1 - Auxiliary device for dental implant

Info

Publication number: WO2019194414A1
Application number: PCT/KR2019/002010
Authority: WO
Inventors: 김현민; 이영호; 김창화
Original assignee: 주식회사 바이오템
Priority date: 2018-04-06
Filing date: 2019-02-20
Publication date: 2019-10-10
Also published as: KR20190117175A

Abstract

The present invention relates to an auxiliary device for a dental implant, which may comprise: a shield part formed to have a sectional area gradually decreasing from the upper part thereof to the lower part thereof and including a wing part having a sufficient size to cover a tooth extraction socket and a bone grafted portion adjacent to an implant planted in the tooth extraction socket when the auxiliary device is coupled to a fixture planted in the tooth extraction socket; a fixture coupling part to be coupled to the fixture; and a connection part for connecting the shield part to the fixture coupling part. The present invention can be also applied to another embodiment.

Description

Auxiliary Devices for Dental Implants

The present invention relates to an assisting device for a dental implant, and to an assisting device for a tooth implant for protecting the tooth extraction and the bone graft site around the implant implanted in the tooth extraction for implant placement.

Implant means a substitute that can replace human tissue when the original human tissue is lost. In particular, the dental implant uses a prosthesis including a fixture, an abutment and a crown. This means that the artificial teeth are implanted into the actual teeth.

In general, dental implants are implanted with artificial teeth after extraction of the tooth and after the extraction of the tooth, which is the place where the tooth is extracted, takes 4 to 5 months before the tooth is naturally healed. do. Therefore, in recent years, in order to minimize the time consuming to natural healing, a bone graft operation is performed in which alveolar bone is formed by implanting a fixture in the tooth and immediately implanting the tooth and implanting a bone graft in the remaining space.

Figure 1 is a photograph of the implant immediately after extraction according to the prior art.

Referring to FIG. 1, in the procedure of implanting an implant immediately after extraction of a tooth as shown in FIG. 1A, after implantation, a fixture is implanted into the tooth 10 and the foreign body is introduced into the fixture and tooth. Tighten the cover screw 11 or healing abutment so as not to. After transplanting the bone graft material to the remaining space of the tooth extraction and 10, as shown in Figure 1 (b), or treated to maintain the blood well, the gum of the tooth extraction (10) is sutured using the suture 13 do. After suturing the gums, soft tissue is formed in the remaining space of the tooth extraction and 10, and when the alveolar bone is stabilized, the cover screw 11 is removed, and then the healing abutment is replaced with a fixture. After 2-3 weeks after replacing the healing abutment, remove the healing abutment from the fixture, combine the abutment with the fixture, and then attach the crown to the abutment to complete the implant procedure. do.

At the time of implantation according to the prior art, even if the gums of the tooth extraction 10 were closed, the site where the bone graft material was implanted or the blood generated by the tooth extraction was exposed in the oral cavity to increase the infection, and to the tooth extraction 10 There is a problem that the transplanted bone graft material is degenerate or disappear. In addition, when the bone graft material is implanted around the implant, the bone graft site may be exposed or settled because the bone graft material may not be secured (hereinafter, referred to as a bone graft site). Therefore, there is a need for a technique for preventing infection and degeneration of bone graft material occurring in the tooth extraction and 10 and a technique for stabilizing bone grafts and suturing soft tissues to easily induce natural healing.

Various embodiments of the present invention for solving such a conventional problem can prevent the occurrence of infection and degeneration of bone graft material by protecting the space to create a new soft tissue and alveolar bone around the implant placed on the tooth and the tooth It is to provide an auxiliary device for a dental implant.

An auxiliary device for a dental implant according to an embodiment of the present invention is formed such that the cross-sectional area from the top to the bottom is gradually reduced, and when the tooth implant is implanted in the tooth and the implant is implanted in the tooth And a shield portion formed to include a wing portion having a size that can cover a surrounding bone graft portion, a fixture coupling portion fastened to the fixture, and a connection portion connecting the shield portion and the fixture coupling portion.

The shield may be formed such that an outer circumferential surface exposed to the outside of the fixture has a curvature when fastened to the fixture.

In addition, it is characterized in that it is formed to have a curvature from the center of the upper surface formed on the shield portion to the wing portion.

The curvature of the upper surface is set by the curvature of the outer circumferential surface.

In addition, the curvature of the upper surface is characterized in that it is formed within the range of 4 to 6 times the curvature of the outer peripheral surface.

In addition, the edge of the wing is characterized in that it is formed to have a curvature.

In addition, the curvature of the edge is characterized in that formed in the range of 0.06 times to 0.15 times the curvature of the outer peripheral surface.

The upper surface may be any one of a circular shape, an oval shape formed based on the shape of the tooth extraction, and a free curve shape formed based on the image of the extraction tooth.

In addition, the fixture fastening portion is characterized in that the thread is formed on the outer peripheral surface.

In addition, a shield, the fixture fastening portion and the connecting portion is characterized in that formed integrally.

In addition, the center of the upper surface is characterized in that the screw groove is formed.

In addition, the shield portion and the connecting portion is formed integrally, the fixture fastening portion is characterized in that is fastened to the fixture through the shield portion and the connecting portion.

The apparatus may further include a shield fastening part integrally formed with the fixture fastening part passing through the shield part and the connecting part, and a screw groove may be formed on the shield fastening part.

As described above, the auxiliary device for the dental implant of the present invention can prevent infection from occurring and degeneration of the bone graft material by protecting the space where the new soft tissue and alveolar bone around the implant which is placed on the tooth is formed. It works.

In addition, by covering the bone graft site around the extraction and implants placed on the extraction and extraction to protect the space where the alveolar bone is to be generated, inducing the natural healing of the gums to minimize the suture and incision of the gums, thereby preventing secondary surgery by the suture, There is an effect that can alleviate the trouble of the operator and reduce the pain of the patient.

2 is a front view of an auxiliary device according to an exemplary embodiment of the present invention.

3 is a view showing the shape of the head of the auxiliary device according to an embodiment of the present invention.

4 is a view illustrating a procedure using an auxiliary device according to an exemplary embodiment of the present invention.

5 is a view after a predetermined time elapses after the procedure using the auxiliary device according to an embodiment of the present invention.

6 is an exploded front view of an auxiliary device according to another exemplary embodiment.

7 is a front view of the auxiliary device to which the components shown in FIG. 6 are fastened.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. At this time, it should be noted that the same components in the accompanying drawings are represented by the same reference numerals as possible. And a detailed description of known functions and configurations that can blur the gist of the present invention will be omitted.

2 is a front view of an auxiliary device according to an exemplary embodiment of the present invention. 3 is a view showing the shape of the head of the auxiliary device according to an embodiment of the present invention. 4 is a view illustrating a procedure using an auxiliary device according to an exemplary embodiment of the present invention. 5 is a view after a predetermined time elapses after the procedure using the auxiliary device according to an embodiment of the present invention.

2 to 5, the auxiliary device 200 according to the present invention includes a shield unit 210, a connection unit 220, and a fixture coupling unit 230, and a shield unit 210 and a connection unit 220. ) And the fixture coupling portion 230 are formed in one piece. The auxiliary device 200 is an abutment which is fastened to the fastening hole of the fixture 540 which is placed in the extraction and 510 immediately after the tooth is extracted for the dental implant, and simultaneously serves as a cover screw and healing abutment. Can be done. The auxiliary device 200 may be formed of a material such as titanium.

2 to 5, the auxiliary device 200 is screwed into the fastening hole of the fixture 540 by the thread 231 formed on the outer circumferential surface of the fixture coupling part 230. The shield part 210 is formed on the upper part of the fixture fastening part 230 so that the fixture fastening part 230 is exposed to the outside of the fixture 540 when the fixture fastening part 230 is fastened to the fixture 540. ) Connects the fixture coupling part 230 and the shield part 210.

The fixture fastening part 230 is fastened to the fastening hole of the fixture 540 by the rotational force provided in the screw groove 214 formed in the shield part 210, and to the display line 221 displayed on the connection part 220. Can be fastened. To this end, the cross-sectional area of the connection part 220 on which the display line 221 is formed and the cross-sectional area of the fastening hole inlet of the fixture 540 are the same.

The connection part 220 is inserted into the fixture 540 by forming a cylindrical shape in which the cross section from the lower part of the shield part 210 to the upper part of the fixture fastening part 230 gradually decreases with respect to the axial direction. At this time, the connecting portion 220 is not necessarily formed in a cylindrical shape that the cross section is gradually smaller, from the lower portion of the shield portion 210 to the upper portion of the fixture fastening portion 230 according to the shape of the fastening hole of the fixture 540. The cross-sectional area of may be generated in the same cylindrical shape.

When the fixture fastening part 230 is fastened to the fixture 540, the bone graft site in which the bone graft material 550 is implanted is implanted around the tooth 510 and the fixture 540 placed in the tooth 510. It may be covered by a wing 215 having a specific thickness T formed on the shield 210. To this end, the upper portion of the shield portion 210 includes a wing portion 215 that can cover the tooth extraction 510, and in the upper portion of the shield portion 210 including the wing portion 215 based on the axial direction The cross section to the lower portion of the shield portion 210 connected to the connecting portion 220 is formed to be gradually smaller. In addition, the outer circumferential surface 213 of the shield 210 may be formed to have a curvature so that the alveolar bone 520 by the bone graft material 550 implanted around the fixture 540 is generated along the outer circumferential surface 213. In addition, the edge 212 of the wing 215 having a specific thickness (T) is formed to have a curvature, which may be generated on the gum 530 around the tooth extraction 510 when the auxiliary device 200 is fastened. The occurrence of a wound can be prevented. The wing 215 may cover the tooth extraction 510 to prevent bacterial penetration, odor and shaking, loss of alveolar bone, and the like to the tooth extraction 510. As such, when the auxiliary device 200 is fastened to the fixture 540 and a predetermined time elapses, as illustrated in FIG. 5, the soft tissue gum 530 may cover the upper surface 211 of the shield 210. . At this time, the operator may perform an additional procedure to seal the gum 530 to cover the upper surface 211 of the shield 210.

The shield part 210 may have a streamlined shape by forming a curvature of the upper surface 211 from the center of the screw groove 214 to the wing part 215. In this case, the curvature of the upper surface 211 may be changed by the curvature of the outer circumferential surface 213 of the shield 210. The curvature of the upper surface 211 may be smaller as the curvature of the outer circumferential surface 213 becomes smaller, and larger as the curvature of the outer circumferential surface 213 becomes larger.

The curvature of the outer circumferential surface 213 may be determined according to the location of the tooth extraction 510 to proceed with the dental implant procedure, and may be determined according to the characteristics of the oral structure of the subject. That is, the fixture 540 implanted in the extraction unit 510 is sized as a standard type, a wide type, etc., and is sized according to the position of the extraction unit 510 to proceed with the dental implant procedure or the characteristics of the oral structure of the subject. Is determined. As described above, the size of the auxiliary device 200 to be fastened to the fixture 540 also varies according to the size of the fixture 540, and the curvature and the upper surface of the outer circumferential surface 213 according to the size of the auxiliary device 200. The curvature of 211 and the curvature of the edge 212 may be different. This is shown in Table 1 below.

In addition, the numerical values set forth in Table 1 below are not necessarily limited thereto, and the numerical values may be changed according to the condition of the subject. For example, the numerical value of the curvature of the outer circumferential surface 213 may be formed within a range of 0.5 to 0.9 multiplied by the numerical value of the diameter of the fixture. In addition, the curvature of the upper surface 211 may be formed in the range of the value of the curvature of the outer peripheral surface 213 multiplied by 4 to 6, the curvature of the edge 212 is 0.06 to 0.15 to the curvature of the outer peripheral surface 213 It can be formed within a range of multiplied values.

	픽스츄어 Φ3.5Fixture Φ3.5	픽스츄어 Φ4.1Fixture Φ4.1	픽스츄어 Φ6.1Fixture Φ6.1
상부면(211)의 곡률Curvature of the upper surface 211	9R9R	10R10R	20R20 R
외주면(213)의 곡률Curvature of the outer circumferential surface 213	2R2R	2R2R	4R4R
가장자리(212)의 곡률Curvature of edge 212	0.276R0.276 R	0.274R0.274R	0.269R0.269R

Looking at the upper surface 211 of the shield 210 may be formed as shown in (a) to (c) of FIG. That is, the upper surface 211 may be formed in a circular shape as shown in (a) of FIG. 3, and may be formed in an elliptical shape as shown in (b) of FIG. 3. The upper surface 211 may be formed in a free curve as shown in (c) of FIG. Figure 3 (b) is a form formed based on the shape of the tooth extraction 510, Figure 3 (c) is a form formed based on the image obtained by scanning the portion of the extraction 510 with a 3D scanner. Can be. The shape of the upper surface 211 may be any one of (a) or (b) of FIG. 3 according to the position of the tooth extraction 510 to perform the dental implant, the shape of the extraction tooth 510 of the subject On the basis of it can be made custom as shown in Figure 3 (c). In addition, the curvature of the outer circumferential surface 213 may be the same in all directions regardless of the shape of the upper surface 211. For example, even when the upper surface 211 is formed in an elliptical shape as shown in FIG. 3B, the curvature of the outer circumferential surface 213 in the short diameter direction on the upper surface 211 and the outer circumferential surface in the long direction diameter ( The curvature of 213 may be identically formed.

As such, when the auxiliary device 200 is fastened to the fixture 540 and a predetermined time has elapsed, the generation of the alveolar bone and the soft tissue is completed in the tooth covered 510 covered by the auxiliary device 200, the shield unit 210. The auxiliary device 200 is removed from the fixture 540 by providing a rotational force to the screw groove 214 formed therein. The abutment for joining the crown is coupled to the fixture 540 from which the auxiliary device 200 is removed, and the dental implant procedure may be terminated by coupling the crown to the abutment.

6 is an exploded front view of an auxiliary device according to another exemplary embodiment. 7 is a front view of a state in which the components shown in FIG. 6 are fastened.

4 to 6 and 7, the auxiliary device 600 according to the present invention includes a first component 610 and a second component 640 in a detachable form. In particular, it is effective to apply the auxiliary device 600 when the upper surface 621 of the shield portion 620 is formed in the form of (b) and (c) of FIG. In addition, the first component 610 includes a shield part 620 and a connection part 630, and the second component part 640 includes a shield fastening part 650 and a fixture fastening part 660. The auxiliary device 600 is an abutment which is fastened to the fastening hole of the fixture 540 placed in the extraction and 510 immediately after the tooth is extracted for the dental implant, and simultaneously serves as a cover screw and healing abutment. Can be done. The auxiliary device 600 may be formed of a material such as titanium.

6 and 7, the shield part 620 and the connection part 630 of the first component 610 are formed with a through hole 624, and the second component 640 is the first component 610. ) Is inserted into the through hole 624 formed in the first component 610 and passes through the first component 610. The fixture fastening part 660 of the second component part 640 which penetrates the 1st component part 610 is screwed to the fixture 540 by the thread 661 formed in the outer peripheral surface.

In the shield fastening part 650 of the second component part 640 penetrating the first component part 610, the fixture fastening part 660 of the second component part 640 passes through the first component part 610. Thus, after being fastened to the fixture 540, it may be formed in the same shape as the through hole 624 formed in the first component 610 so that no movement occurs in the first component 610. In addition, when the fixture coupling part 660 of the second component 640 is fastened to the fixture 540, the fixture coupling part 660 may be exposed to the outside of the fixture 540 up to the upper portion of the display line 631 of the connector 630. have. At this time, after the second component 640 passes through the first component 610, the screw on the upper surface of the shield fastening portion 650 so that the fixture fastening portion 660 is screwed to the fixture 540. Grooves 651 are formed.

In addition, the upper surface 621, the edge 622, the outer circumferential surface 623, and the wing 625 of the shield 620 may include the upper surface 211, the edge 212, and the outer circumferential surface (described with reference to FIGS. 2 to 5). 213 and the same as the wing 215, detailed description thereof will be omitted.

The method of fastening the auxiliary device 600 formed in the detachable form to the fixture 540 implanted in the extraction unit 510 is as follows. First, the operator inserts the first component 610 into the fixture 540 up to the display line 631 displayed on the connector 630, and the second component 610 through the through hole 624 of the first component 610. The portion 640 is penetrated. Then, a rotational force is applied to the screw groove 651 formed in the second component 640 to screw the fixture coupling portion 660 to the fixture 65. Therefore, even when the upper surface 621 is formed in the form of FIGS. 3B and 3C, the auxiliary device 600 may be fastened to match the shape of the tooth extraction 510.

On the other hand, the embodiments of the present invention disclosed in the specification and drawings are merely presented specific examples to easily explain the technical contents of the present invention and help the understanding of the present invention, and are not intended to limit the scope of the present invention. That is, it will be apparent to those skilled in the art that other modifications based on the technical idea of the present invention can be implemented.

Claims

It is formed to have a smaller cross-sectional area from the top to the bottom and is formed to include a wing size that can cover the bone graft site around the implant and the implant implanted in the tooth extraction when fastened to the tooth implant Shield part;

A fixture fastening part fastened to the fixture; And

A connection part connecting the shield part and the fixture connection part;

Auxiliary device comprising a.
The method of claim 1,

The shield part,

And an outer circumferential surface exposed to the outside of the fixture when the fastener is fastened to the fixture to have a curvature.
The method of claim 2,

The auxiliary device, characterized in that it has a curvature from the central portion of the upper surface formed on the shield portion to the wing portion.
The method of claim 3,

And the curvature of the upper surface is set by the curvature of the outer circumferential surface.
The method of claim 4, wherein

Curvature of the upper surface is an auxiliary device, characterized in that formed in the range of 4 to 6 times the curvature of the outer peripheral surface.
The method of claim 5,

Edge of the wing portion is characterized in that it is formed to have a curvature.
The method of claim 6,

The curvature of the edge is an auxiliary device, characterized in that formed in the range of 0.06 times to 0.15 times the curvature of the outer peripheral surface.
The method of claim 3,

The upper surface is an auxiliary device, characterized in that any one of a circular shape, an oval formed based on the shape of the tooth extraction and free-form shape formed based on the image of the tooth extraction.
The method of claim 2,

The fixture fastening unit,

An auxiliary device, characterized in that the thread is formed on the outer peripheral surface.
The method of claim 3,

And the shield unit, the fixture coupling unit, and the connection unit are integrally formed.
The method of claim 10,

An auxiliary device, characterized in that a screw groove is formed in the center of the upper surface.
The method of claim 3,

And the shield unit and the connecting unit are integrally formed, and the fixture coupling unit is coupled to the fixture by passing through the shield unit and the connecting unit.
The method of claim 12,

A shield fastening part integrally formed with the fixture fastening part penetrating the shield part and the connection part;

More,

On the upper part of the shield fastening portion,

An auxiliary device, characterized in that the screw groove is formed.