KR101294590B1 - Abutment holder for anti-rotation mechanism for fixture of dental implant - Google Patents

Abstract

PURPOSE: An abutment holder for preventing an implant from rotating is provided to improve the fixing force of an abutment and to allow an operation regardless of symphysis intensity. CONSTITUTION: An abutment holder (100) for preventing an implant from rotating is mounted on an abutment and restricts the abutment so that an implant can rotate on a plantation location by the torque of an abutment screw. The holder comprises a holder body (110) which comes in contact with the outer periphery of the abutment and tightens the abutment, and a stopper (120) which is installed in the holder body and supports the holder body during the rotation of the abutment screw.

Description

Abutment Holder For Anti-rotation Mechanism For Fixture Of Dental Implant}

The present invention relates to a device for implant surgery, when the abutment screw is fastened to the implant of the artificial tooth for fixing the abutment, the implant inserted in the tooth defect site is the abutment screw It relates to an implant surgical instrument mounted on the abutment, i.e., to prevent rotation of the abutment holder to prevent rotation with the.

In general, dental implants (Dental Implant) refers to the implantation of artificial teeth (artificial teeth) or teeth. In other words, artificial tooth roots made of titanium, etc., which are not rejected by the human body to replace the defects, especially the missing teeth, are placed in the tooth defects, especially the areas where the teeth fall out, and then artificial crowns are placed on the artificial tooth roots. It refers to a procedure or artificial tooth that is fixed to artificially restore the function of the tooth.

In the case of a general prosthesis or denture, the teeth and bones around the tooth defect are damaged over time, but the implants do not damage the surrounding dental tissues, and they can be used semi-permanently because they do not have tooth decay even though they have the same function or shape as natural teeth. There is an advantage.

In addition, the implant can enhance the function of dentures and improve the esthetic aspects of dental prosthetic restorations as well as single missing tooth restorations as well as partial and complete toothless patients, further distributing excessive stress on bone tissue around the implant. It can help to stabilize the teeth.

Referring to Figure 1, artificial teeth, that is, dental implants (Dental Implant) according to the prior art, the implant body (Fixture; 10) and implanted bodies that are implanted in the tooth defects of the alveolar bone (1) to form an artificial root 10) abutment (20) supported by the support and abutment screw (30) for fixing the abutment (20) to the buried body (10), the abutment (20) is crowned (crown) It is covered.

The embedding body 10 is implanted by screwing into the alveolar bone of the tooth defect portion, the abutment screw 30 is screwed to the embedding body 10 through the abutment 20 in the axial direction, To this end, a male screw for screwing the alveolar bone is formed on the outer circumferential surface of the buried body 10, and a female screw is formed inside the buried body 10 to which the abutment screw 30 is fastened.

Then, the abutment screw 30 is fastened to the female screw of the buried body 10 through the hollow hole 21 of the abutment 20, so that the abutment 20 is connected to the buried body 10. It sticks strongly and is fixed.

In other words, when the abutment screw 30 is fastened to the buried body 10 in a state where the abutment 20 is mounted on the buried body 10 placed on the tooth defect, the abutment screw 30 The abutment 20 is fixed while being in close contact with the embedding body 10. At this time, when the tightening torque (torque) of the abutment screw 30 is increased to a predetermined level (bone adhesion strength of the medium), the embedding body 10 is in the insertion position by the tightening torque of the abutment screw 30 Because of the risk of rotation, the fastening force of the abutment screw 30 should be limited to a certain level or less, or after the implantation body 10 is placed, it must be waited until the bone adhesion is formed.

However, if the fastening force of the abutment screw 30 is limited to a predetermined level or less, the artificial tooth shakes due to loosening of the abutment screw 30 during the use of the implant due to low fastening force, thereby refastening the abutment screw 30. The procedure should be performed.

On the other hand, when the fastening force is increased to prevent loosening of the abutment screw 30, the support force (bone adhesion strength) of the alveolar bone 1 with respect to the embedding body 10 supports the fastening force of the abutment screw 30. Therefore, when the abutment screw 30 is fastened, the embedding body 10 rotates at the insertion site due to the fastening torque of the abutment screw 30. Then, the osteoadhesion of the media 10 is destroyed, leading to the failure of the osteoadhesion, and thus, the success rate of the implant procedure is lowered or the implant procedure itself becomes a failure, thereby causing pain as well as economic / time loss to the patient.

Currently, the abutment 20 is first fixed with the abutment screw 30 on the embedding body 10, and then a crown is applied to the abutment 20, and then the abutment screw 30 is used again. The second procedure for permanently fixing the crown to the abutment 20 by re-joining is performed.

In addition, it is difficult for the practitioner to give the abutment screw 30 a tightening torque of a predetermined level (for example 30 N · m) or more without lowering the fastening torque without rotating the embedding body 10 at the insertion site. Since the procedure depends on the experience and skill of the operator, it is a factor that lowers the structural stability of the implant assembly. In conclusion, it is difficult for the operator to perform the fastening of the abutment screw stably, and no implant treatment apparatus has been developed for this purpose, and the reality depends only on the experience and skill of the operator.

Republic of Korea Patent No. 10-0807289, registered February 19, 2008 Republic of Korea Patent No. 10-0594762, registered June 22, 2006 Republic of Korea Patent Publication No. 10-2000-0016704, published March 25, 2000

The present invention was devised to solve the above-described problems, and can increase the stamina of the abutment screw to enhance the abutment of the abutment, so that the procedure can be performed even when the bone adhesion strength is low, the abutment is mounted on the abutment An object of the present invention is to provide a buried body rotation preventing abutment holder which prevents rotation of the buried body when the abutment screw is fastened.

In order to solve the above-described object, the present invention, the abutment to the abutment to prevent the buried body from rotating in the insertion position by the rotational force of the abutment screw fastened to the buried body to secure the abutment to the body of the artificial tooth It is provided to provide a buried body rotation preventing abutment holder to restrain the abutment. The abutment holder may include: a holder body elastically in close contact with an outer circumferential surface of the abutment by an elastic restoring force to hold the abutment; And a stopper provided on the holder body and supporting the holder body when the abutment screw is rotated.

The abutment holder supports the abutment so that rotation of the embedding body is prevented by the frictional force between the embedding body and the abutment.

The holder body includes an elastic band elastically opened by the abutment to surround an outer circumferential surface of the abutment; The stopper protrudes outward from the elastic band.

The elastic band has a ring shape in which both ends are divided; The stopper has a shape protruding to the outside of the elastic band at one end of the elastic band so that it can be supported by an external force.

The embedded body anti-rotation abutment holder may further comprise a protrusion having a shape protruding to the outside of the elastic band at the other end of the elastic band.

The stopper and the protrusion may be configured to intersect with each other, and the stopper and the protrusion may include at least one of an expander for widening the elastic band and a systolic for tightening the elastic band for insertion of the abutment. .

At each end of the stopper and the protrusion, an assembly tool for mounting at least one of the dilator and the contractor is formed.

The embedded body holder for preventing rotation of the body according to the present invention has the following effects.

First, according to the present invention, since the carcass is indirectly supported by the abutment holder which tightens the abutment by the elastic restoring force and applies rotational resistance to the abutment, it is possible to increase the tightening torque of the abutment screw when fixing the abutment to the form. And, this can prevent the loosening (Loosening) of the abutment screw during use of the implant, it is possible to increase the stability of the fastening structure of the implant assembly.

Second, the present invention can be fixed by the rotation of the abutment to prevent the carcass to rotate at the implantation site, to prevent damage to or damage to the bone adhesion state of the carcass when the abutment screw is tightened, the stability of the implant procedure This can be improved and the number of procedures can be reduced.

Third, according to the present invention, since the fastening force of the abutment screw can be increased to enhance the bonding force between the abutment and the carcass, the contact interface between the abutment and the carcass is strongly adhered to the inside of the carcass through the contact interface. Penetration can be minimized or prevented and periodontal disease can be prevented.

Fourth, according to the present invention, since the tightening force of the abutment holder which is in close contact with the abutment by the elastic restoring force can be further strengthened by the contractor, the abutment screw can be prevented at the same time to prevent the adhesion of the abutment even when the bone adhesion strength of the buried body is low. Can increase the tightening force.

Fifth, the abutment holder according to the present invention has an advantage that the structure is simple and easy to manufacture and convenient to use during the implant procedure, and prevents the rotation of the medium even when the abutment screw is loosened for refastening the abutment screw. can do.

1 is a cross-sectional view showing an example of a general dental implant.
Figure 2 is a perspective view showing an embodiment of the embedded body holder for preventing rotation of the body according to the present invention.
3 is a perspective view showing a state in which the abutment holder shown in FIG. 2 is installed in the implant.
4 is a diagram illustrating an example of a process of manufacturing the abutment holder of FIG. 2.
FIG. 5 is a perspective view illustrating one embodiment of an expander applicable to the abutment holder of FIG. 2. FIG.
6 is an example of use of the expander shown in FIG. 5.
FIG. 7 is a perspective view showing one embodiment of a contractor applicable to the abutment holder of FIG. 2. FIG.
8 is an example of use of the systolic device shown in FIG.
FIG. 9 is a plan view illustrating a state in which the abutment holder of FIG. 2 is applied inside the oral cavity. FIG.
10 is a perspective view showing another embodiment of the embedded body holder for preventing rotation of the body according to the present invention.
Figure 11 is a perspective view showing another embodiment of the embedded body holder for preventing rotation of the body according to the present invention.
12 is a perspective view of one embodiment of an dilator applicable to the abutment holder of FIG. 11.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, preferred embodiments of the present invention in which the object of the present invention can be specifically realized will be described with reference to the accompanying drawings. In describing the present embodiment, the same designations and the same reference numerals are used for the same components, and additional description thereof will be omitted in the following.

First, with reference to Figures 2 to 4 will be described an embodiment of the embedded body anti-rotation holder holder (hereinafter abbreviated as 'holder holder') according to the present invention. 2 is a perspective view showing an embodiment of the abutment holder according to the present invention, FIG. 3 is a perspective view showing a state in which the abutment holder shown in FIG. 2 is installed on the implant, and FIG. 4 is a preparation of the abutment holder of FIG. A diagram showing an example of the process.

The dental implant to which the abutment holder 100 according to the present invention is applied is applied to a tooth defect site to constitute an artificial tooth, as shown in FIG. 3, the media 10, the abutment 20, and the abutment screw ( 30), the abutment screw 30 is fastened to the screw groove (female thread) of the embedding body 10 through the hollow hole of the abutment 20, the abutment ( 20) is tightly fixed.

And when the abutment screw 30 is fastened to the embedding body 10 to fix the abutment 20 to the embedding body 10, a fastening force of the abutment screw 30, that is, a fastening torque (Torque). If the alveolar bone exceeds the bearing force (bone adhesion strength of the media), the media 10 prevents the rotation of the media along with the abutment screw, the abutment holder 100 according to the present invention is an implant for preventing this It is a surgical instrument.

More specifically, as the abutment screw 30 is tightened, the abutment 20 is tightly adhered to the embedding body 10, and thus the abutment 20 and the embedding body 10 are integrally formed. When the restraint of the abutment 20 by using the abutment holder 100, frictional force is generated on the contact surface between the abutment 20 and the buried body 10 due to the tightening torque. It functions as a brake which prevents the rotation of (10), especially a friction brake.

In other words, before the abutment 20 is restrained by the abutment holder 100, the embedding body 10 is supported only by the alveolar bone. However, in the state in which the rotation of the abutment 20 is constrained by the abutment holder 100, since the carcass 10 is supported by both the alveolar bone and the abutment 20, the supporting force of the alveolar bone, that is, the buried body Even when the bone adhesion strength of (10) is weaker than the clamping force of the abutment screw 30, the rotation of the embedding body 10 can be effectively prevented.

As described above, the abutment holder 100 according to the present invention is mounted on the abutment 20 so that the abutment body (when the abutment screw 30 is rotated, that is, when the abutment screw 30 is tightened or released. 10. An implant surgical tool for preventing rotation of the implantation position, which is provided on the holder body 110 and the holder body 110 to apply a rotational resistance to the embedding body 10 through the abutment 20. It is configured to include a stopper 120.

2 and 3, the holder body 110 is elastically tightly attached to the outer circumferential surface of the abutment 20 by an elastic restoring force to clamp the abutment 20, and the stopper 120 is the abutment screw ( The holder body 110 is supported in a direction opposite to the fastening direction of 30. That is, when the abutment screw 30 is fastened, the stopper 120 supports the holder body 110 in a direction opposite to the fastening direction of the abutment screw 30.

More specifically, when an external force (rotational resistance force) opposite to the fastening direction of the abutment screw is applied to the stopper 120, the holder body 110 is supported by the stopper 120, the holder body The holder body 110 and the abutment 20 are integrally behaved by the tightening force of 110, more specifically, the elastic restoring force of the holder body 110. The integral behavior of the holder body 110 and the abutment 20 is due to the frictional force between both members due to the elastic restoring force (the clamping force).

Since the embedding body 10 is a structure embedded in the alveolar bone, it is difficult to directly add an external force to the embedding body 10 in addition to the force (bone adhesion force) supported by the alveolar bone when the abutment screw 30 is fastened. Therefore, it is not possible to directly provide a rotational resistance force to the buried body 10 during the fastening of the abutment screw 30.

Therefore, when a force in a direction opposite to the rotation direction of the abutment screw 30 (especially the tightening direction of the abutment screw 30) is applied to the abutment 20 through the abutment holder 100, the abutment screw Rotation of the abutment 20 is constrained while the 30 is fastened, and the rotational resistance force may be indirectly added to the embedding body 10 via the abutment 20.

In the present invention, when the abutment holder 100 is mounted to the abutment 20, the holder body 110 is opened and elastically deformed, and the abutment 20 is inserted into the abutment holder 100. In the abutment holder will receive a tightening force by the elastic restoring force of the holder (100).

To this end, the holder body 110 is configured to include an elastic band (111, Elastic Band) to which the abutment 20 is fitted. The elastic band 111 is elastically opened as it is mounted on the abutment 20 to surround the outer circumferential surface of the abutment 20, and integral behavior of both components by frictional force between the elastic band 111 and the abutment 20. This becomes possible.

In this embodiment, an annular band, that is, an annular band (annular band) in which both ends are divided by the elastic band 111 is disclosed. The holder body 110 may be made of a metal having elasticity, for example, stainless steel or titanium, but is not limited thereto.

And, when the abutment 20 is inserted into the elastic band 111, the elastic band 111 is elastically open to tighten the abutment 20 by elastic restoring force, the elastic band 111 is the abutment It is made smaller than (20). Therefore, when the abutment 20 is inserted into the elastic band 111, the inside of the elastic band 111 is elastically expanded, and conversely, when the elastic band 111 is separated from the abutment 20, the elastic band 111 is restored to its original shape.

The stopper 120 protrudes outward from the elastic band 111, and when an external force (rotation resistance force) is applied to the stopper 120, the holder body 110, that is, the elastic band 111 by the external force. ) Is supported and consequently the rotation of the abutment 20 is constrained.

In this embodiment, the stopper 120 protrudes outward from the elastic band 111 at one end of the elastic band 111 and is formed integrally with the elastic band 111, but The position is not limited to one end of the elastic band 111, but may be provided at any position between one end and the other end of the elastic band 111.

In this embodiment, the stopper 120 has a shape extending integrally from one end of the elastic band 111, the projection 130 may be further provided on the other end of the elastic band 111. The protrusion 130 is a shape protruding to the outside of the elastic band 111 at the other end of the elastic band 111, and as described below to open or contract (since) the elastic band 111 Can be used. The protrusion 130 may function as the stopper or the stopper 120 and the protrusion 130 may both function as stoppers according to the installation direction of the abutment holder 100.

The stopper 120 and the protrusion 130 are configured to intersect with each other, and the stopper 120 and the protrusion 130 extend (open) the elastic band 111 (see FIG. 5) and the elastic band. At least one of the systolic clamping members 111 (see FIG. 7) may be coupled.

To this end, the stopper 120 and the protrusion 130 are provided with assembly holes 121 and 131 to which the dilator 140 and the contractor 150 are mounted, and in the present embodiment, the assembly holes 121 and 131. The end of the stopper 120 and the protrusion 130 has a curved shape, for example, a tube shape, but is not limited thereto, but may be variously changed according to the structure of the expander or the contractor.

Hereinafter, an example of a method of manufacturing the abutment holder 100 according to the present embodiment will be described with reference to FIG. 4.

First, after the metal plate is prepared as shown in FIG. 4 (a), the metal plate is cut and processed as shown in FIG. 4 (b) in the same manner as the abutment holder 100 is fully developed on the two-dimensional plane. And as shown in (c) of Figure 4 to form the assembly hole for the mounting of the expander and the retractor on the metal plate, and finally bending the metal plate in a circular (bending) as shown in (d) of Figure 4 Complete abutment holder 100 according.

Next, the expander 140 for expanding the elastic band 111 and the method for expanding the elastic band 111 will be described with reference to FIGS. 5 and 6.

5 and 6, the expander 140 is an assembly tool 121 formed in the stopper 120 (hereinafter referred to as a first assembly tool) and an assembly tool 131 formed in the protrusion 130. It is a mechanism for expanding the inside of the elastic band 111 by narrowing the interval between the second assembly sphere).

The expander 140 has a pair of levers 141 and 142 that cross each other as a scissors structure, and a pair of handles 143 and one end of the levers 141 and 142 provided at one end of the levers 141 and 142. It is configured to include a pair of coupling spheres 144 provided at the other end.

The pair of coupling holes 144 protrude from the levers 141 and 142, and fit into holes formed in the first assembly 121 and the second assembly 131. And, as shown in FIG. 6 when the operator pulls the handle 143 in the state in which the dilator 140 is coupled to the abutment holder 100, the inner space of the elastic band 111 is the outer diameter of the abutment 20. It is greatly expanded. By using the expander 140, the abutment holder 100 may be more easily mounted.

Next, with reference to FIGS. 7 and 8 will be described the shrinking machine 150 tightening the elastic band 111 and the shrinking method of the elastic band 111.

Referring to FIGS. 7 and 8, the systolic machine 150 is configured to move the variable frame 152 and the variable frame 152 movably coupled to the systolic frame 151 and the systolic frame 151. It is configured to include a frame adjuster 153 provided on the systolic frame 151.

The contractor 150 has a tightening force of the elastic band 111 with respect to the abutment 20 by widening the interval between the first assembly 121 and the second assembly 131 as opposed to the expander 140. It is a device to increase. In other words, the friction force between the abutment 20 and the elastic band 111 may be increased by the contractor 150, and a stronger rotational resistance may be applied to the embedding body 10.

The contracting frame 151 is a guide frame for guiding the first support 151a and the variable frame 152 supporting one of the first assembly 121 and the second assembly 131 ( 151b), the variable frame 152 has a second support 152a for supporting the other of the first assembly 121 and the second assembly 131, the guide frame It moves along the straight line 151b.

In more detail, the guide frame 151b is fitted to the variable frame 152, and the variable frame 152 slides along the guide frame 151b. The variable frame 152 is provided with an assembly hole in which the guide frame 151b is assembled, and the movement of the variable frame 152 is implemented by the frame adjuster 153 provided in the contracted frame 151. The frame adjuster 153 is composed of a space adjusting screw screwed to the variable frame 152.

Accordingly, when the space adjusting screw 153 is loosened or tightened, the variable frame 152 moves to one side or the other side along the guide frame 151b, and the first and second supports 151a and 152a. The distance between the) is adjusted, through which the tightening force of the elastic band 111 is changed.

9 is a view showing a state in which the abutment holder 100 according to the present embodiment is applied to the inside of the oral cavity in order to fix the abutment to the body of the artificial tooth that is placed in place of the mandibular posterior tooth. The abutment screw is fastened in the state supported by the arrow).

Next, with reference to Figure 10 will be described another embodiment of the embedding body anti-rotation abutment holder according to the present invention.

The abutment holder 100A according to the present embodiment includes a holder body 110 having an elastic band 111, a stopper 120a, and a protrusion 130a, and the stopper 120a and the protrusion 130a are At one end and the other end of the elastic band 111 is extended to the outside parallel to each other.

As described above, the holder body 110 compresses and compresses the abutment 20 by elastic restoring force, and contraction (tightening) of the elastic band 111 is applied to the stopper 120a and the protrusion 130a. Screw tightening mechanism for mounting (140a) is mounted. In addition, the guide protrusion 160 for guiding the close movement of the stopper 120a and the protrusion 130a extends from one side of the stopper 120a and the protrusion 130a to the other side, and the other side of the guide protrusion 160. A guide hole through which the guide protrusion 160 penetrates is formed.

In other respects, repetitive descriptions are omitted since the contents described in the above embodiments may be applied in the same manner.

Next, with reference to FIG. 11, another embodiment of the embedding body anti-rotation abutment holder according to the present invention will be described.

The abutment holder 100B according to the present embodiment includes a holder body 110 having an elastic band 111, a stopper 120b, and a protrusion 130b, and the stopper 120b and the protrusion 130b are One end and the other end of the elastic band 111 protrudes out of the holder body (110). In the present embodiment, the stopper 120b and the protrusion 130b extend tangentially symmetrically to face each other in opposite directions to form 180 °, but the directions of the stopper 120b and the protrusion 130b are limited thereto. It is not.

In addition, the holder body 110 presses and compresses the abutment 20 by elastic restoring force as described in the above embodiments, and the elastic band 111 is attached to the stopper 120b and the protrusion 130b. Dilator 140A (see FIG. 12) may be combined.

To this end, the stopper 120b and the protrusion 130b are provided with assembly holes 122 and 132 on which the dilator 140A is mounted, and the assembly holes 122 and 132 in the present embodiment are the stopper 120. ) And the ends of the protrusions 130 are each curved to have a curved shape, for example, a tube shape, but are not limited thereto, and may be variously changed according to the structure of the expander 140A.

Hereinafter, an example of the expander 140A for expanding the elastic band 111 of the abutment holder 100B according to the present embodiment will be described with reference to FIG. 12.

Referring to FIG. 12, the dilator 140A includes an assembly tool 122 (hereinafter, referred to as a “first assembly tool”) formed in the stopper 120b and an assembly tool 132 (hereinafter, referred to as “first assembly tool”) formed in the protrusion 130. It is a mechanism for expanding the inside of the elastic band 111 by narrowing the interval between the two (assembly).

The expander 140 has a pair of levers 141a and 142a coupled to the hinge by a hinge structure, and a pair of handles 143 and the levers 141a and 142a provided at one end of the levers 141a and 142a. It is configured to include a pair of coupler 144 provided at the other end of the).

The pair of coupling holes 144 protrude from the levers 141a and 142a and fit into holes formed in the first assembly 122 and the second assembly 132. In addition, when the operator pulls the handle 143 in the state in which the dilator 140A is coupled to the abutment holder 100, an inner space of the elastic band 111 may be enlarged to be larger than an outer diameter of the abutment 20. In addition, when the expander 140A is used, the abutment holder 100B may be more easily mounted. However, the dilator 140A of FIG. 12 operates on the principle opposite to that of the dilator 140 of FIG. 5. In other words, in the present embodiment, when the handle 143 is closed, the levers 141a and 142a are opened. In the case of FIG. 5, when the handle 143 is closed, the levers 141a and 142a are also closed. Lose.

In other respects, repetitive descriptions are omitted since the contents described in the above embodiments may be applied in the same manner.

According to the present invention, when the tightening torque required for the abutment screw 30 is 30Nm and the bone adhesion strength of the buried body 10 exhibits a rotational resistance of 25Nm, the abutment holders 100 and 100A When the rotational resistance force of 5N · m or more is provided to the buried body 10 through 100B), it is possible to prevent rotation of the buried body and destruction of bone adhesion, and is applied by the abutment holders 100, 100A, and 100B. The tightening torque of the abutment screw 30 may be further increased according to the magnitude of the rotational resistance. In addition, since the abutment holder can restrain the rotation of the buried body even when the abutment screw is loosened, the abutment of the buried body can be prevented from being destroyed.

As described above, according to the present invention, the present invention can be embodied in other specific forms without departing from the spirit and scope of the present invention. It is obvious to them.

Therefore, the above-described embodiments should be regarded as illustrative rather than restrictive, and thus, the present invention is not limited to the above description and may be modified within the scope of the appended claims and their equivalents.

10: medium 20: abutment
30: abutment screw 100: abutment holder for preventing the rotation of the medium
110: holder body 120: stopper
130: protrusion 140: dilator
150: systolic

Claims (6)

Anti-rotation abutment mounted on the abutment to restrain the abutment so that the abutment is prevented from being rotated at the insertion position by the rotational force of the abutment screw fastened to the embedding body to fix the abutment to the implant of the artificial tooth. As a holder;
A holder body elastically close to the outer circumferential surface of the abutment by an elastic restoring force and clamping the abutment; And
And a stopper provided in the holder body, the stopper supporting the holder body when the abutment screw is rotated. The method of claim 1,
The holder body includes an elastic band elastically opened by the abutment to surround an outer circumferential surface of the abutment; The stopper is a median rotation preventing abutment holder, characterized in that protruding outward from the elastic band. The method of claim 2,
The elastic band has a ring shape in which both ends are divided; The stopper has a shape for preventing the rotatable body column holder, characterized in that protruding outwardly of the elastic band from one end of the elastic band so that it can be supported by an external force. The method of claim 3,
Corrugated body rotation preventing abutment holder, characterized in that it further comprises a projection of the shape protruding outward of the elastic band at the other end of the elastic band. 5. The method of claim 4,
The stopper and the projection cross each other, the stopper and the projection for preventing the rotatable body column, characterized in that at least one of the expander to expand the elastic band for insertion of the abutment and the contractor for tightening the elastic band is mounted. holder. The method of claim 5,
At least one end of the stopper and the protrusion assembly assembly for preventing at least one of the dilator and the systolic is formed, characterized in that the holding body holder for preventing rotation.

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