WO2020013475A1

WO2020013475A1 - Implant having dental root structure and surgical method using same

Info

Publication number: WO2020013475A1
Application number: PCT/KR2019/007462
Authority: WO
Inventors: 황준호; 김봉생; 이규복; 김현덕
Original assignee: 경북대학교 산학협력단
Priority date: 2018-07-13
Filing date: 2019-06-20
Publication date: 2020-01-16
Also published as: KR20200007517A; KR102265130B1

Abstract

An implant having a dental root structure and a surgical method using same according to the present invention enable a surgery of an implant having a patient-specific dental root shape and increase satisfaction of a patient undergoing the surgery by forming dental root parts, by obtaining a personal 3D image of the patient, and having the dental root parts spread apart and fixed to the alveolar bone when the implant is implanted.

Description

Implant with tooth root structure and procedure

The present invention relates to an implant for implanting artificial teeth.

In general, an implant is a type of prosthesis used to replace a problem or missing tooth, and can be individually performed without damaging adjacent teeth, and has a relatively long lifespan. One.

These implants are implanted with artificial roots, called fixtures, made of titanium, etc., which are made of titanium, which are not rejected by the human body, to replace the roots of the missing teeth. It is an advanced procedure that restores the function of teeth by fixing artificial teeth to artificial roots through abutments.

However, in the case of a conventional implant, the upper prosthesis, such as a crown or abutment, is provided to the patient in a customized manner, but in the case of a fixture, the upper prosthesis is made of a screw and placed in the alveolar bone so that it cannot be provided according to the patient's personal characteristics. There is a limiting problem in increasing satisfaction.

In particular, since the fixture is implanted in a fastening method after puncturing the alveolar bone of the patient, the implant procedure is also difficult, and there is a problem in that a lot of equipment and time are required.

The present invention has been made in order to solve the above problems, by making the root portion through the acquisition of a three-dimensional image of the patient, and the tooth root portion is configured to be fixed to the alveolar bone structure by opening the implant procedure of the patient-specific customized The purpose is to provide an implant having a root structure to increase the satisfaction of the patient to be treated, and a treatment method using the same.

An implant having a root structure according to the present invention for realizing the above object is a body portion located on the upper portion of the gum; A tooth root portion extending from the body portion to the inside of the gum and having a structure that opens to both sides; It is characterized in that it comprises an opening means provided in the body portion to open the root.

When the root portion is opened to both sides, it is preferable that the engaging projection is formed on the outer surface to be caught by the alveolar bone of the patient.

In this case, the locking protrusion may be formed to protrude in a sawtooth shape on the outer surface of the root portion.

The opening means is preferably configured to open the tooth root portion while being coupled to the body portion in a screw structure while moving up and down.

In this case, the opening means, the screw hole penetrated vertically through the body portion, the opening bolt fastened to the screw hole, and is provided at the end of the opening bolt is in contact with the inner surface of the root portion, the root portion as moving up and down It may be configured to include an opening head for opening.

The opening bolt may be configured as a wrench bolt that can be rotated using a wrench.

The root portion may be formed as an inclined surface that is narrowed toward the lower side of the inner surface contacting the open head.

The abutment coupling portion to which the abutment is coupled to the body portion is formed thereon, and the abutment and artificial tooth (Crown) may be sequentially coupled to the abutment coupling portion.

Alternatively, the body portion is formed with a tooth coupling portion is coupled to the artificial teeth on the upper portion, the artificial coupling can be coupled to the tooth coupling portion.

In addition, the body portion may protrude up to the tooth height of the patient to constitute an artificial tooth.

The root portion is preferably manufactured in the same manner as the root of the patient by acquiring the shape of the patient's root in a three-dimensional image.

An implant treatment method having a root structure according to the present invention for realizing the above object includes a scanning step of acquiring the root of the patient as a three-dimensional image; A manufacturing step of manufacturing an implant having the root structure using the information obtained in the scanning step; After inserting the root portion of the implant produced through the manufacturing step into the patient's gums, characterized in that it comprises a fixing step of opening the root portion by the opening means to fix in the gum.

After the fixing step, it is preferable to further comprise a separation step of separating the implant from the gum by narrowing the root portion using the opening means.

Means for solving the problems of the present invention as described above, will be described in more detail and clearly through examples such as 'details for the implementation of the invention', or the accompanying 'drawings' to be described below, wherein In addition to the main problem solving means as described above, various problem solving means according to the present invention will be further presented and described.

The implant having a root structure according to the present invention and a treatment method using the same have the effect of realizing a higher patient satisfaction by being able to perform the same implant fixture as the root of the patient with a customized dental implant of the root shape. In other words, the present invention is to be able to perform the implant-shaped implant of the patient-specific customized to replace the conventional screw-type implant fixture has the effect of further increasing the implant satisfaction. Accordingly, the implant can be placed immediately after extraction with a tooth-shaped customized implant, can reduce the number of visits to patients, and can also expect the effect of reducing the implant procedure.

In addition, since the present invention is configured to be fixed to the alveolar bone after opening the root portion to the gum during implantation procedure, it is possible to implement a more stable implant procedure by securing a mechanical and physical fixation force during implantation.

1 is a perspective view showing an implant having a root structure in accordance with an embodiment of the present invention.

2 is a front view showing an implant having a root structure according to an embodiment of the present invention, showing a state before the root portion is opened.

3 is an internal cross-sectional view of FIG. 2.

Figure 4 is a front view showing an implant having a root structure in accordance with an embodiment of the present invention, a view showing a state in which the root portion is opened.

5 is a cross-sectional view of the inside of FIG. 4.

Figure 6 is a block diagram of a first embodiment showing an implant treatment structure having a root structure in accordance with the present invention.

Figure 7 is a block diagram of a second embodiment showing an implant treatment structure having a root structure in accordance with the present invention.

Figure 8 is a block diagram of a third embodiment showing an implant treatment structure having a root structure in accordance with the present invention.

Figure 9 is a block diagram of a fourth embodiment showing an implant treatment structure having a root structure in accordance with the present invention.

10 is a front view showing an implant having a root structure in accordance with another embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings.

1 to 5 is a view showing an implant having a root structure according to an embodiment of the present invention, Figure 1 is a perspective view, Figures 2 and 3 is a front view and a cross-sectional view before the root portion is opened, Figures 4 and Figure 5 is a front view and a sectional view of a state where the root portion is opened.

Referring to these drawings, the implant 10 having a root structure according to an embodiment of the present invention, the body portion 12 exposed to the outside of the gum, and the root portion extending from the lower side of the body portion 12 to the inside of the gum And a gaping means 20 provided at the body portion 12 to open the root portion 16 to both sides.

The body 12, the root portion 16, and the opening means 20 which are the main components of the present invention as described above will be described in detail.

First, the body portion 12 may be a portion that is formed in a substantially hexahedral structure and protrudes toward the upper side of the gum during an implant procedure. At this time, the body portion 12 may be configured to form a customized gum margin, and the circumferential edge is formed into a curved surface to facilitate the angle adjustment when the artificial teeth (Crown) is attached.

Holes

13, 14, and 15 penetrating up and down may be formed in the center portion of the body part 12 so that the opening means 20 may be coupled thereto. 3 and the like, the upper hole 13 formed in a hexagonal shape or the like from the upper side of the body portion 12, the inner diameter is formed smaller than the upper hole in the lower side of the upper hole 13, the bolt head 23 ) May be formed of a circular hole 14 and a screw hole 15 penetrating downward from the circular hole 14. The shape and structure of the

holes

13, 14, and 15 may be appropriately changed according to the implementation conditions.

Next, the root portion 16 is preferably formed to have a structure that is integrally connected to the lower portion of the body portion 12 to open to both sides. To this end, the root portion 16 is preferably composed of a material having a certain degree of elasticity while integrally connected to the body portion 12.

In particular, the root portion 16 acquires the root of the actual patient as a three-dimensional image such as a CT, a scanner, and the like or similar to the root of the actual patient using a 3D printer or multi-axis precision processing equipment based on the three-dimensional image. It is preferable to make it so that it is placed in the patient. Of course, when manufacturing the root portion 16, it is preferable that the body portion 12 is also integrally manufactured and used together. Therefore, the shape of the body portion 12 and the root portion 16 illustrated in the drawings is not limited to this, and may be implemented according to the actual shape of the root of the patient.

The root portion 16 is formed with a locking projection 17 on the outer surface so as not to be caught by the patient's alveolar bone (see FIGS. 4 to 7) when it opens to both sides as shown in FIGS. 4 and 5. desirable.

The shape and structure of the locking projections 17 can be appropriately set and configured according to the state of the alveolar bone and the implantation conditions. However, in the drawings of the present embodiment illustrates a structure in which the engaging projection 17 protrudes in the serrated shape on the outer surface of the root portion 16.

In addition, the root portion 16 may be expected to improve osteoinduction function when the surface or the like is treated with a porous structure using a laser or various physicochemical surface treatment methods.

On the other hand, the root portion 16 is formed as shown in Figs. 4 and 5 by the opening means 20 in the state gathered as shown in Figs. 2 and 3 at the time of initial placement, the inner side of the root portion 16 The inclined surface 18 which becomes narrower toward the lower side is formed in this surface, and this inclined surface 18 is comprised so that the opening head 25 of the opening means 20 mentioned below can open and close the root part 16, contacting up and down. Can be.

Of course, the present invention is not limited to the inclined surface 18 structure illustrated in the drawings, and may be modified by applying a known cam contact structure in which the root portion 16 is collected or spread according to the displacement of the opening head 25. It is possible.

Next, the opening means 20 is coupled to the body portion 12 in a screw structure and is configured to open the root portion 16 while moving up and down, so that the locking projection 17 of the root portion 16 at the time of implant placement is It adheres to the alveolar bone and performs a function of securing mechanical and physical fixation force. In addition, the separation means 20 also performs a function of narrowing the open root portion 16 when separating the implant from the alveolar bone according to various needs, such as the occurrence of inflammation.

The opening means 20 includes a screw hole 15 penetrated vertically through the body portion 12, a fastening bolt 22 fastened to the screw hole 15, and an end of the fastening bolt 22. It may be configured to include an opening head 25 to open the root portion 16 as it moves up and down while contacting the inclined surface 18 inside the root portion 16.

The fastening bolt 22 may be composed of a wrench bolt that can be rotated using a wrench. The fastening bolt 22 may be composed of a bolt head 23 and a male screw 24, the bolt head 23 is formed with a hexagonal groove 23a to which a tool such as a wrench is coupled, and the male screw 24 has a body. It is preferable to be configured to be coupled to the screw hole 15 formed in the portion 12.

The fastening bolt 22 may be configured using other bolts or screws in addition to the wrench bolt.

The opening head 25 may be formed in a cylindrical structure, and the lower circumferential surface 26 in contact with the inclined surface 18 is preferably formed in a curved surface.

The method of fixing the root portion 16 using the opening means 20 is to insert the root portion 16 into the gum, and then rotate the wrench bolt using a tool such as a wrench to open the head together with the male screw 24. 25 moves to the lower side. At this time, as the opening head 25 pushes the inclined surface 18 inside the root portion 16, the root portion 16 is opened and the locking protrusion 17 is fixed to the inside of the alveolar bone. On the contrary, when the open head 25 is moved upward by rotating the wrench bolt, the root portion 16 can be narrowed and separated from the alveolar bone.

On the other hand, the opening means 20 is not limited to using the fastening bolts 22 and the like, and if the cam operation structure that opens the root portion 16 as it moves up and down, it is various using a known cam operation structure. Can be configured.

6 to 9 will be described with reference to Figures 6 to 9 with respect to the various implant treatment structure using the implant base structure consisting of the body portion 12, the root portion 16, the opening means 20 as described above.

FIG. 6 illustrates a procedure structure using an abutment 30 and an artificial tooth 40.

That is, the abutment coupling part to which the abutment 30 is coupled to the upper hole 13 formed in the upper part of the body part 12 is configured, and the abutment coupling part and the abutment 30 are artificially formed. Tooth 40 is composed of a configuration that is coupled in turn.

At this time, the abutment 30 has an insertion portion 32 inserted into the upper hole 13 of the body portion 12 on the lower side, the coupling portion 34 is coupled to the artificial tooth 40 on the upper side It may be formed to protrude. In addition, the artificial tooth 40 may have a tooth groove 42 in which the coupling portion 34 of the abutment 30 is inserted and coupled to the lower side.

The abutment 30 and the artificial tooth 40 coupled to the body portion 12 may be fixed to each other using an adhesive member used for implant placement.

The abutment 30 and the artificial tooth 40 are not limited to the structure illustrated in the drawings, and may be variously modified using a known abutment and artificial tooth structure.

The body portion 12, the root portion 16, and the opening means 20 may be configured the same as or similar to the above-described structure, so that the same reference numerals are given to the drawings, and repeated description thereof will be omitted.

In FIG. 7, an artificial tooth 40A is directly coupled to the body 12 without using an abutment.

That is, the tooth coupling portion to which the artificial tooth 40A is coupled to the upper hole 13 portion of the body portion 12 is formed, and the tooth coupling portion has a structure in which the artificial tooth 40A is coupled.

Of course, it is preferable that the tooth protrusion 44 is inserted into the artificial coupling portion 40A and coupled to the artificial coupling portion 40A.

Similarly, the artificial tooth 40A may be attached and fixed to the body portion 12 using an adhesive member, and the body portion 12, the root portion 16, and the opening means 20 are the same as the structure described above. Alternatively, since they may be configured similarly, the same reference numerals are given to the drawings, and repeated description thereof will be omitted.

In FIG. 8, the abutment structure is illustrated in which the artificial tooth 40B is directly coupled to the body part 12 without using an abutment.

In the embodiment of FIG. 8, the engaging protrusion 12a having the abutment upper shape is formed on the upper portion of the body part 12, and the engaging groove 45 coupled to the engaging protrusion 12a is formed in the artificial tooth 40B. Show the formed structure.

In this case, the artificial tooth 40B may be attached and fixed to the body part 12 using an adhesive member, and the body part 12, the root part 16, and the opening means 20 are the same as the structure described above. Alternatively, since they may be configured similarly, the same reference numerals are given to the drawings, and repeated description thereof will be omitted.

In FIG. 9, the artificial tooth is not separately configured, and illustrates an operation structure in which the body part 11 together constitutes an artificial tooth by increasing the height of the body part 11 of the implant 10B.

That is, the body 11 is formed to protrude to the tooth height of the patient to constitute an artificial tooth.

At this time, the blocking member 50 for blocking the upper hole (13A) formed for the configuration of the opening means 20 can be coupled to the upper end of the body portion (11).

In another embodiment of the present invention, the body portion 12C of the implant 10C is formed in a minimized structure. That is, an embodiment is configured such that the body portion 12C does not protrude out of the gum when placed, and has only a fixture function.

Of course, the upper portion of the body portion 12C is configured so that the abutment is fixedly installed.

The remaining components may be the same as or similar to the configuration of the embodiment of the present invention described above, and the same reference numerals are given to the drawings, and repeated description thereof will be omitted.

Referring to the implant treatment method using an implant having a root structure according to an embodiment of the present invention as described above are as follows.

Implant treatment method using an implant having a root structure according to an embodiment of the present invention, the scanning step to secure the root shape by taking a three-dimensional image of the inside of the gum or the extraction part of the patient's tooth tissue, and scanning in this scanning step The manufacturing step of forming the implant 10 having the above-described root structure, that is, the body portion 12 and the root portion 16 integrally based on the obtained information, and the root portion of the implant produced through this manufacturing step After inserting the (16) into the gum of the patient may be configured to include a fixing step of opening the root portion 16 with the opening means 20 to fix in the gum.

Then, the fixing step may further include a separation step of separating the implant from the gum by narrowing the root portion 16 using the opening means 20.

Here, in the scanning step, it is preferable to acquire the root shape of the patient as a 3D image by using a CT or a scanner.

In addition, the manufacturing step using the 3D image of the patient's root 3D printer or multi-axis precision processing equipment, etc. to form the body portion 12 and the root portion 16 to the patient's gums or alveolar bone to customize the patient To make.

In addition, the implantation step is inserted into the gum in a state in which the root portion 16 is narrowed as described above, and then rotates the fastening bolt 22 using a tool or the like to open the root portion 16 and at this time, the root portion ( 16) The engaging projection 17 formed on the outer surface is caught while being in close contact with the alveolar bone, it is possible to implant implants in a stable placement state.

On the other hand, if you want to remove the implant as necessary after the implant procedure, the opening head 25 is moved upward to close the alveolar bone fixed to the alveolar bone 16, and then pull out from the gum.

As described above, in the present invention, when the tooth root shape is custom-made as described above through a 3D printer or a multi-axis processing equipment capable of manufacturing a three-dimensional shape, the implantation can be immediately performed after extraction, thereby enabling the construction of a one-day implant system.

Implant fixtures having a root shape can be realized or manufactured, but the actual procedure was not performed because it was very difficult to fix the alveolar bone. Therefore, conventionally, a method of fixing to the alveolar bone using a screw fixture is used. However, the present invention is configured to impart a fixing force by forming the opening means 20, the locking projection 17, etc. in the shape of the implant fixture having the root portion 16, thereby ensuring a stable fixing force so that it can be placed immediately Patient-specific tooth root implants enable functional and high patient satisfaction similar to magnetic teeth.

As described above, the technical idea described in the embodiments of the present invention may be implemented independently, or may be implemented in combination with each other. In addition, the present invention has been described through the embodiments described in the drawings and the detailed description of the invention, which is merely exemplary, and those skilled in the art to which the present invention pertains various modifications and equivalent other embodiments therefrom It is possible. Therefore, the technical protection scope of the present invention will be defined by the appended claims.

10: implant 12: body part

15: screw hole 16: tooth root

17: engaging projection 20: spreading means

22: fastening bolt 25: opening head

30: abutment 40: artificial tooth

The present invention relates to an implant for implanting artificial teeth.

In addition, the present invention is configured to impart a fixing force by forming the opening means and the locking projections in the implant fixture shape having a root portion, thereby ensuring a stable fixing force so that it can be placed immediately and to the tooth implant as a patient-specific tooth root implant It enables the implementation of similar functionality and high patient satisfaction.

Claims

A body part positioned above the gum;

A tooth root portion extending from the body portion to the inside of the gum and having a structure that opens to both sides;

The implant having a root structure, characterized in that it comprises an opening means provided in the body portion to open the root portion.
The method according to claim 1,

The root portion is an implant having a root structure, characterized in that the engaging projection is formed on the outer surface to be caught in the alveolar bone of the patient when it opens to both sides.
The method according to claim 2,

The locking projection is an implant having a root structure, characterized in that the protruding in a sawtooth shape on the outer surface of the root portion.
The method according to claim 1,

The opening means is implanted having a root structure, characterized in that coupled to the screw structure to open the root portion while moving up and down.
The method according to claim 4,

The opening means,

A screw hole penetrated vertically through the body portion;

An opening bolt fastened to the screw hole;

The implant having a root structure is provided at the end of the opening bolt and comprises an opening head for opening the root portion as it moves up and down while contacting the inner surface of the root portion.
The method according to claim 5,

The opening bolt is implant having a root structure, characterized in that consisting of a wrench bolt that can be rotated using a wrench.
The method according to claim 5,

The root portion is an implant having a root structure, characterized in that formed in the inclined surface narrowing toward the lower side of the inner surface contacting the open head.
The method according to claim 1,

The abutment is coupled to the abutment (abutment) is formed on the body portion,

Implant having a root structure, characterized in that the abutment and artificial teeth (Crown) are in turn coupled to the abutment coupling portion.
The method according to claim 1,

The body portion is formed with a tooth coupling portion is coupled to the artificial teeth thereon,

Implant having a tooth root structure characterized in that the artificial tooth is coupled to the tooth coupling portion.
The method according to claim 1,

The body portion is an implant having a root structure, characterized in that protruding up to the tooth height of the patient to constitute an artificial tooth.
The method according to claim 1,

The root portion is an implant having a root structure, characterized in that the same as the tooth root of the patient obtained by obtaining the root shape of the patient in a three-dimensional image.
A scanning step of acquiring the root of the patient as a 3D image;

A manufacturing step of manufacturing an implant having a root structure according to any one of claims 1 to 11 using the information obtained in the scanning step;

After inserting the root portion of the implant produced through the manufacturing step into the gum of the patient, the tooth root, characterized in that it comprises a fixing step of opening the root portion with the opening means according to any one of claims 1 to 11 to fix it in the gum. Implant procedure method having a structure.
The method according to claim 12,

And a separation step of separating the implant from the gum by narrowing the root portion by using the opening means after the fixing step.