WO2007108227A1

WO2007108227A1 - Abutment

Info

Publication number: WO2007108227A1
Application number: PCT/JP2007/050986
Authority: WO
Inventors: Mitsuru Motoyoshi
Original assignee: Nihon University
Priority date: 2006-03-16
Filing date: 2007-01-23
Publication date: 2007-09-27
Also published as: JPWO2007108227A1

Abstract

An abutment (10) for facilitating attachment and removal of a pulling jig, such as a spring, to and from a head (2) of an orthodontic implant. The abutment (10) has a body inserted into grooves (3, 4) of the implant head (2), a jig engagement section (15) integrally formed with the body and projecting from the head (2) with the body inserted in the grooves (3, 4), left and right feet (13) integrally formed with the body and extending to the constricted section (6) side, along the side face of the head (2), and a projection (14) formed on each of the feet (13) and capable of being hooked to the lower end of the head (2).

Description

Specification

Annotation

Technical field

The present invention relates to an abutment attached to an orthodontic implant, and relates to an abutment used for attaching an orthodontic jig to the head of an orthodontic implant.

[0002] When a hook of a correction jig such as a pulling panel is hooked on the head of an implant, it is common to use a dedicated implant having a protrusion or the like that can hook the hook. It is.

In addition, for example, a cross-shaped groove is formed on the end face of the head of the orthodontic implant, and a straightening wire is inserted into the groove, and a filler such as a resin is filled in the upper force groove and solidified. It is common to fix the corrective wire to the head of the implant.

[0003] The groove is also used as a driver groove when the implant is screwed.

In addition, the head of the orthodontic implant has a special dedicated shape, and a hole through which a thin wire can be penetrated is formed in the opposite part above the groove formed in the dedicated head, and the wire is passed through the hole. It is also considered to prevent the straightening wire from ligating.

Also, as in Patent Document 1, instead of providing a groove in the head, a small screw is screwed into the head with a straightening wire placed next to the constriction formed under the head. There is also a technique for preventing the straightening wire from coming off by protruding the tip of the shaft of the small screw. Patent Document 1: Japanese Unexamined Patent Application Publication No. 2004-57729

Disclosure of the invention

[0004] (Problems to be solved by the invention)

Dedicated implants equipped with hooks for hooks of pulling jigs such as panel will be used, and it is necessary to prepare various types of implants according to the application and replace the implants themselves.

In addition, when the above filler is used, once the orthodontic wire is fixed, it can be removed from the implant. And other orthodontic jigs cannot be attached to the head of the same implant.

[0005] In addition, in the structure of the prior art document 1 or the like, since it is a dedicated implant, it is necessary to prepare various kinds of implants according to the use and to replace the implants themselves.

The present invention has been made paying attention to the above points, and it is an object of the present invention to provide an abutment that facilitates the attachment / detachment of a pulling jig such as a panel to the head of the orthodontic implant.

(Means for solving problems)

In order to solve the above problems, the invention described in claim 1 of the present invention is an implant having a groove on the upper surface of the head and a constricted portion having a smaller diameter than the head below the head. An abutment attached to the

A main body portion inserted into the groove, a jig hooking portion that is formed integrally with the main body portion and projects the head force when the main body portion is inserted into the groove, and a main body portion are formed integrally. Left and right feet extending along the side of the head toward the constricted portion, and protrusions formed on the feet and hooked to the lower end of the head, the feet being Panel power can be generated by rubbing.

[0006] Next, the invention described in claim 2 is different from the structure described in claim 1 in that the groove formed on the upper surface of the implant head intersects two grooves extending in a straight line. The main body is formed with a notch for inserting the other groove into a communicating state when inserted into one of the two intersecting grooves. It is what.

Brief Description of Drawings

FIG. 1 is a front view showing an abutment according to an embodiment of the present invention.

FIG. 2 is a diagram for explaining a relationship between an implant head and an abutment.

FIG. 3 is a perspective view showing a state where an abutment is attached to the head of the implant.

FIG. 4 is a diagram illustrating an example in which a coil spring is attached to a jig hooking portion.

Explanation of symbols

[0008] 1 Implant 2 heads

3, 4 groove

6 Constriction

10 Annotations

11 Body

12 Notch

13 feet

14 Protrusion

15 Jig latch

15a Hook body

15b Large diameter part

20 Coil spring

21 Straightening archwire

BEST MODE FOR CARRYING OUT THE INVENTION

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a front view for explaining an abutment according to the present embodiment. (Constitution)

First, the implant 1 will be described. The head 2 has a substantially cylindrical shape as shown in FIGS. On the upper end surface of the head 2, a cross-shaped groove formed by intersecting two linear grooves 3 and 4 is formed. A constricted portion 6 having a smaller diameter than the head 2 is formed below the head 2. A screw part 5 is provided below the constricted part 6 through a mucous membrane penetrating part.

[0010] The abutment 10 of the present embodiment is an abutment that is attached to the head 2 of the general implant 1 having the above-described structure.

The abutment 10 includes a main body part 11 inserted into the linear groove 3 as shown in FIGS. 1 and 2, left and right foot parts 13 continuous on the left and right sides of the main body part 11, and A jig hooking portion 15 protruding upward from the main body portion 11 is provided. Abutment 10 is made of a metal such as titanium or stainless steel or a high hardness resin. The power can be demonstrated.

[0011] The main body 11 is composed of a flat plate, and the width of the plate is such that it can be inserted into the groove 3. Since the main body 11 is not press-fitted into the groove 3 and directly fixed to the groove 3, the thickness is slightly smaller than the width of the groove 3. A notch 12 is formed at the center of the lower end of the main body 11. At least a part of the space formed by the notch 12 is arranged at the intersection of the two grooves 3 and 4 in a state where the main body 11 is inserted into the groove 3, and the notch 12 The opening serves as an opening for connecting the other groove 4 to which the main body 11 is not inserted.

[0012] Foot portions 13 are provided integrally with the main body portion 11 on the left and right sides of the main body portion 11, respectively.

Each foot 13 projects from the main body 11 to the outside of the side surface of the head 2 and extends downward along the side surface of the head 2 toward the constricted portion 6. The tip of the foot 13 is located below the head 2, that is, the position facing the constricted portion 6. The protrusion 14 is provided so as to be pulled to the lower end of the head 2.

[0013] Further, a latching portion main body 15a protrudes above the center portion upper end portion force of the main body portion 11.

A cylindrical large-diameter portion 15b having a larger diameter than the latching portion main body 15a is provided at the tip of the latching portion main body 15a. A jig hooking portion 15 is constituted by the hooking portion main body 15a and the large diameter portion 15b, and a step at the boundary between the hooking portion main body 15a and the large diameter portion 15b serves as a hook retaining stopper.

(Effect)

The abutment 10 having the above-described configuration has the main body portion 11 as shown in FIGS. 2 and 3 with respect to one of the grooves 3 and 4 that intersect with each other in the head 2 of the implant 1. Insert from the top of head 2. As the plug is inserted, the left and right feet 13 are slightly crooked outward, and the left and right protrusions 14 provided at the tips of the left and right feet 13 move downward while sliding on the sides of the head 2 respectively. When the projection 14 moves to the lower side of the head 2 and the insertion is completed, the pinch of the crooked foot 13 and the left and right projections 14 are hooked on the lower end of the head 2 .

[0014] In this way, the abutment 10 is detachably attached to the head 2 of the implant 1. You can

The abutment 10 may be attached before the implant 1 is attached to the bone, or may be attached after the implant 1 is attached to the bone.

Then, as shown in FIG. 4, the pulling jig is hooked on the jig hooking portion 15. Here, in FIG. 4, a coil spring 20 is illustrated as a pulling jig, and rings 20 a that are hooks for hooking are provided at both ends of the coil spring 20. The ring 20a has a smaller diameter than the head 2 of the implant 1, but has an inner diameter larger than that of the large diameter portion 15b of the jig hooking portion 15.

[0015] The mounting of the coil spring 20 will be described. As shown in FIG. 4, the upper force of the jig hooking portion 15 is also passed through the ring 20a and disposed below the large diameter portion 15b. Then, it is pulled by the panel force of the coil spring 20 and becomes in a state as shown in FIG. 4 (b), and is caught by the jig hooking portion 15, and the implant 1 can be pulled as a fixed source. In the above description, the force described in the case where the other side of the coil spring 20 is already attached is not limited to this. First, after hooking one ring 20a on the jig hooking portion 15, the other may be attached to another portion to be in a towed state.

[0016] Although the coil spring 20 is illustrated as an example of a pulling jig attached to the jig hooking portion 15, the coil spring 20 is not limited thereto. For example, the end of the pulling wire may be attached to the jig hooking portion 15.

Further, in the abutment 10 of the present embodiment, the notch 12 is provided at the position where the grooves 3 and 4 intersect, so that the correction archwire 21 is inserted into the other groove 4 as shown in FIGS. In this state, by inserting the abutment 10 into one of the grooves 3 as described above, the arch wire 21 is disposed at the position of the notch 12, and the abutment 10 of the present embodiment Can also be used to stop. That is, the correction archwire 21 can be easily fixed.

[0017] Thus, a dedicated implant 1 for fixing a traction jig such as a traction wire or fixing the correction arch wire 21 is not necessary.

Further, since the abutment 10 is detachable, the abutment 10 for other uses can be attached to the same implant 1 by removing the abutment 10. You In other words, the fixture attached to the head 2 of the implant 1 can be changed according to the orthodontic situation.

[0018] Further, the abutment 10 is mounted by inserting the main body 11 from the upper side of the head 2 into the groove 3 by inserting the main body 11 by the bow I hooking force. It is easy to install and can be removed simply by pulling it. That is, desorption is easy.

Here, in the above embodiment, the upper end portion of the jig hooking portion 15 has a cylindrical shape, but the present invention is not limited to this. Any step or recess that can be hooked by ring 20a or the like may be formed.

In the above-described embodiment, an example in which the jig hooking portion 15 is provided in the center of the main body portion 11 has been described. However, the jig hooking portion 15 may be protruded by moving to the left or right side. good. Two or more jig hooks 15 may be provided.

Industrial applicability

[0020] By simply detachably attaching the abutment of the present invention to the implant, the pulling jig such as a panel can be easily attached to and detached from the head of the orthodontic implant.

Claims

The scope of the claims

[1] An abutment attached to an implant having a groove on the upper surface of the head and having a constricted portion having a smaller diameter than the head below the head,

A main body portion inserted into the groove, a jig hooking portion that is formed integrally with the main body portion and projects the head force when the main body portion is inserted into the groove, and a main body portion are formed integrally. Left and right feet extending along the side of the head toward the constricted portion, and protrusions formed on the feet and hooked to the lower end of the head, the feet being An abutment that can generate panel power by rubbing.

[2] The groove formed on the upper surface of the implant head is formed in a cross shape by intersecting two grooves extending in a straight line, and one of the two intersecting grooves is formed in the main body. 2. The abutment according to claim 1, wherein a notch for forming the other groove in a communicating state is formed in a state of being inserted into the groove.