WO2015115692A1

WO2015115692A1 - Fixture of dental implant

Info

Publication number: WO2015115692A1
Application number: PCT/KR2014/001149
Authority: WO
Inventors: 박광범
Original assignee: 주식회사 메가젠임플란트
Priority date: 2014-01-28
Filing date: 2014-02-12
Publication date: 2015-08-06
Also published as: TW201529045A; TWI541009B

Abstract

Disclosed is a fixture of a dental implant. The fixture of the dental implant in accordance with one embodiment of the present invention comprises: a body part in which a head is formed on one side thereof; an initial implant part which is formed on the outer surface of the end of the other side of the body part, the upper end portion thereof forming a thin ridge, and the lower end portion thereof being implanted initially in the thin ridge part of an alveolar bone forming a relatively wide basal bone compared to the thin ridge; and a screw part which is formed in a spiral on the outer surface of the body part, the thread height thereof formed to gradually increase toward the initial implanted part from the head area.

Description

Dental Implant Fixtures

The present invention relates to a fixture of a dental implant, and more particularly, the upper end forms a thin ridge and the lower end is formed while maximizing the alveolar bone forming a relatively wide base bone. The present invention relates to a fixture of a dental implant that can secure structural stability as an artificial tooth root.

Implants, which are originally meant to be a replacement when a tissue is lost, are a series of procedures in which dentists implant artificial teeth.

In other words, the implant is implanted in the alveolar bone where the tooth falls out, and then implants a fixture, which is a tooth root made of titanium, which is not rejected to the human body to replace the lost root (root). A series of dental procedures to restore the function of your teeth.

In the case of general prosthetics or dentures, the surrounding teeth and bones are damaged over time, but the implants do not damage the surrounding dental tissues, and they have the advantage that they can be used semi-permanently because they have the same function or shape as natural teeth and do not cause tooth decay.

The artificial tooth procedure (also called implant or implant procedure) uses a drill to drill the placement position, and then implants the fixture into the alveolar bone, fused it to the bone to make artificial tooth root, and then abuts the fixture. After joining the abutments, this is done by putting the final crown on the abutment.

These implants enhance the function of dentures, improve the aesthetics of dental prosthetic restorations, as well as dissipate excessive stress on surrounding supportive bone tissue, as well as single missing restorations. And also helps stabilize the dentition.

Fixtures implanted for the first time during implantation usually have a straight screw shape and are classified into small, standard and large sizes according to their size.

Thus, the operator selects and uses the size of the fixture in consideration of the shape of the alveolar bone and the shape and space of the periphery of the position where the fixture is to be placed.

On the other hand, fixtures that differ only in size but have a substantially straight screw shape are generally applied to patients with conventional oral structures, especially those with normal ridges at the upper end of the alveolar bone.

However, when the alveolar bone is not common, for example, when the upper end of the alveolar bone is narrow, i.e., a thin ridge is formed and the basal bone at the lower end is as wide as usual, it is difficult to secure structural stability using a general fixture. .

In other words, in the case of the alveolar bone where the upper part forms a thin ridge and the lower part forms a relatively wide basement bone than the silage, it is necessary to make the best use of the alveolar bone in accordance with the shape of the alveolar bone. It is expected that stability can be secured, but research and development on this situation are necessary since such fixtures are not being developed yet.

The present invention can be implanted while maximizing the alveolar bone forming the upper ridge (thin ridge) and the lower end forming a relatively wide base bone than the dental ridge to ensure structural stability as an artificial tooth root Provides fixtures.

According to the present invention, the upper end forms a thin ridge and the lower end can be implanted while making the most of the alveolar bone forming a relatively wide base bone than the silage, thereby ensuring structural stability as an artificial tooth root.

1 is a view showing a general alveolar bone.

2 is a view showing the alveolar bone to be implanted fixture of the dental implant according to the first embodiment of the present invention.

3 is a view of a state in which the fixture of the dental implant according to the first embodiment of the present invention is implanted in the alveolar bone of FIG. 2.

4 is an enlarged view of the fixture of the dental implant shown in FIG. 3.

5 is a plan view of FIG. 4.

6 is a view of a state in which the fixture of the dental implant according to the second embodiment of the present invention is placed in the alveolar bone.

7 is an enlarged view of the fixture of the dental implant shown in FIG. 6.

8 is a plan view of FIG. 7.

9 is a view of a state in which the fixture of the dental implant according to the third embodiment of the present invention is placed in the alveolar bone.

10 is an enlarged view of the fixture of the dental implant shown in FIG. 9.

FIG. 11 is a plan view of FIG. 10.

According to an aspect of the invention, the body portion is formed with a head on one side; An initial placing portion formed on an outer surface of the other end of the body portion, an upper portion forming a thin ridge and a lower portion initially placed in the silage portion of the alveolar bone forming a relatively wide base bone; And a screw portion formed spirally on an outer surface of the body portion, the screw portion being formed to gradually increase in height from the head region toward the initial placing portion, and the fixture of the dental implant may be provided. .

The screw portion, the upper screw portion adjacent to the head; A lower screw portion adjacent to the initial placing portion; And a plurality of connection screw portions that continuously connect the upper screw portion and the lower screw portion.

An imaginary outline trajectory connecting the upper screw portion, the plurality of connecting screw portions, and the ends of the lower screw portion may have a trapezoidal shape.

The thickness of the threads may gradually become thinner from the upper threaded portion toward the lower threaded portion.

The body portion may have a taper type of which the diameter decreases toward the initial placement portion from the head.

The initial implantation portion may be sharply processed at the other end of the body portion may include a sharpening processing portion for the implantation position guide for guiding the implantation position for the shrine.

The initial implantation portion may further include an initial implantation screw portion, one side of which is connected to the sharpening processing portion for the insertion position guide and the other side of which is spirally disposed on the outer surface of the body portion.

The body portion may have a straight type having the same diameter from the head to the initial placement portion.

The body portion may have a cone type in which the diameter increases from the head toward the initial placement portion.

It may further include a cutting edge portion (cutting edge portion) formed in the screw portion.

The cutting edge portion may be formed in the screw portion having a direction inclined to one side with respect to the longitudinal direction of the body portion.

The cutting edge portion may be formed symmetrically on both sides of the body portion relative to the body portion.

The head has an internal type head in which one region of the abutment is inserted and coupled inwardly, and an extruded portion having a protrusion protruding upward in the upper surface thereof is inserted into the region of the abutment. Any type of tunnel type head may be provided.

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

Hereinafter, the present invention will be described in detail by explaining preferred embodiments of the present invention with reference to the accompanying drawings. Like reference numerals in the drawings denote like elements.

1 is a view showing a general alveolar bone, Figure 2 is a view showing the alveolar bone to be implanted fixture of a dental implant according to a first embodiment of the present invention.

In the case of the alveolar bone 1 shown in Figure 1, the upper end (1a) is also wide and the base bone (1b) of the lower end is also wide.

1 corresponds to a general alveolar bone 1 seen in conventional patients. When forming the artificial root in the alveolar bone 1, a conventional straight screw-shaped fixture (not shown) may be used. That is, a conventional fixture (not shown) selected from small, standard and large size may be implanted in the alveolar bone 1 of FIG. 1 and used as an artificial tooth root.

However, in the case of the alveolar bone 2, which is somewhat normal as shown in FIG. 2, the conventional straight screw type fixture (not shown) described above cannot be used.

In other words, in the case of the alveolar bone 2, in which the upper end forms a thin ridge 2a and the lower end forms a relatively wide base bone 2b, as shown in FIG. While fixing the fixture (100, see Fig. 3) to be placed, it is possible to ensure the structural stability as an artificial tooth root.

Therefore, in the case of the fixture 100 (refer to FIG. 3) implanted in the alveolar bone 2 as shown in FIG. 2, the structure is different from that of a conventional straight screw type fixture (not shown). This will be described with reference to FIGS. 3 to 5.

3 is a view of a state in which the fixture of the dental implant according to the first embodiment of the present invention is implanted in the alveolar bone of FIG. 2, FIG. 4 is an enlarged view of the fixture of the dental implant shown in FIG. 3, and FIG. 5 is a plan view of FIG. 4.

Referring to these drawings, the fixture 100 of the dental implant according to the present embodiment, the upper end forms a thin ridge (2a) and the lower end forms a relatively wide base bone (2b) than the silage The alveolar bone 2 can be placed while making the most of the alveolar bone 2 to secure structural stability as an artificial tooth root, and includes a body part 110 and a screw part 130.

The body portion 110 is a portion forming a central stem in the fixture 100 of the present embodiment. This body portion 110 has an approximately straight rod type.

In the fixture 100 of the present embodiment, the body portion 110 has a tapered shape with a predetermined angle along the longitudinal direction.

In other words, the body 110 is manufactured to have a taper type in which the diameter becomes narrower toward the initial placement portion 120 from the head 111. As the body 110 is manufactured in such a form, there is an advantage in that the fixture 100 is easily placed.

For reference, the cross-sectional diameter of the body portion 110 may have a thickness of about 5 mm to 8 mm, the scope of the present invention does not need to be limited to its numerical value.

The head 111 is formed on one side of the body portion 110. Head 111 is a portion formed in the upper end of the body portion 110 is used as a place where the abutment (not shown) is coupled later.

The head 111 has an internal type head in which one region of the abutment is inserted and coupled inward, and a region of the abutment is inserted and coupled inward and protrudes upward on the upper surface. It may be provided as any one type of external type head.

In the present embodiment, the former internal type head 111 is applied. However, it does not matter even if an external type head (not shown) is applied.

On the opposite side of the head 111 in the body portion 110, the initial placement portion 120 is formed. In other words, the initial placement portion 120 is formed on the outer surface of the other end of the body portion 110, the upper end forms a thin ridge (2a) and the lower end is a relatively wide base bone It is used as a part which is initially implanted in the part of the silage 2a of the alveolar bone 2 forming (2b).

The initial implantation unit 120 includes a sharpening processing unit 121 for an insertion position guide, and an initial implantation screw unit 122.

The sharpening processing part 121 for the insertion position guide is processed sharply at the other end of the body portion 110 to guide the placement position for the shingles 2a. Unlike other fixtures (not shown) is characterized in that the end is sharply processed.

The initial placement screw portion 122 is connected to the sharpening portion 121 for the insertion position guide and the other side is disposed spirally on the outer surface of the body portion 110 is connected to the lower screw portion (131c) of the screw portion 130 do.

On the other hand, the screw portion 130 is a portion formed spirally on the outer surface of the body portion (110). In the present embodiment, the screw 130 is formed such that the height of the mountain is gradually increased toward the initial placement portion 120 in the head 111 region.

The screw portion 130 has an upper screw portion 131a adjacent to the head 111 and a lower screw portion 131c adjacent to the initial placing portion 120, that is, continuously connected to the initial placing screw portion 122. And a plurality of connecting screw portions 131b for continuously connecting the upper screw portion 131a and the lower screw portion 131c.

The upper threaded portion 131a and the lower threaded portion 131c mean a row at the corresponding position, and the connecting threaded portion 131b indicates a plurality of rows between the upper threaded portion 131a and the lower threaded portion 131c. In this embodiment, the connection screw portion 131b has a total of eight rows. However, since the scope of the present invention is not limited to the shape of the drawings, the connection screw portion 131b may be less or more than eight lines.

Thus, the screw portion 130 may be formed in the form of the upper screw portion (131a), a plurality of connecting screw portion (131b) and the lower screw portion (131c), in this embodiment the upper screw portion (131a), a plurality of connections The virtual outline trajectory connecting the end portions of the screw portion 131b and the lower screw portion 131c has a trapezoidal shape.

As described above, as the virtual outline trajectory connecting the ends of the upper screw portion 131a, the plurality of connecting screw portions 131b, and the lower screw portion 131c has a trapezoidal shape, the fixture 100 is the alveolar bone ( When placed in 2), the alveolar bone (2) can be implanted while making the best use, thereby securing structural stability as an artificial tooth root.

Looking at the upper screw portion 131a, the plurality of connecting screw portions 131b and the lower screw portion 131c constituting the screw portion 130, the thickness of the thread toward the lower screw portion 131c toward the lower screw portion 131c ( It can be seen that t1, t2) is gradually thinned, having such a structural feature is convenient for placement and helps to ensure structural stability.

Although not shown in the drawings, a cutting edge portion may be further formed on the screw portion 130.

The cutting edge portion serves to facilitate the placement of the fixture 100 due to the sharp tip.

When the cutting edge portion is formed, the cutting edge portion may be formed in the threaded portion 130 in a direction inclined to one side with respect to the longitudinal direction of the body portion 110, in this case, the cutting edge portion relative to the body portion 110 As a result it may be formed symmetrically on both sides of the body portion (110).

Of course, this content is not limited to the scope of the present invention, the cutting edge portion does not necessarily need to be formed symmetrically on both sides of the body portion (110).

The implant procedure using the fixture 100 having such a configuration will be briefly described.

First, the installation position is drilled using a predetermined drill. Then, as shown in FIG. 3, the fixture 100 of the present embodiment is disposed at the implantation position, and the fixture 100 is implanted at the implantation position of the thin ridge region 2a of the alveolar bone 2.

The alveolar bone 2 applied in the present embodiment is an alveolar bone 2 having an upper end forming a thin ridge 2a and a lower end forming a base bone 2b that is relatively wider than the silage 2a. The fixture 100 of the embodiment has a trapezoidal shape of a virtual outline trajectory that connects the end portions of the upper screw portion 131a, the plurality of connecting screw portions 131b, and the lower screw portion 131c, and the body portion 110. As it is formed in the tapered type can be well implanted in the alveolar bone (2), it is also possible to ensure the structural stability as an artificial tooth root after implantation.

After the fixture 100 has been placed and the time for fusion to the fixture 100 has elapsed, the abutment is attached to the head 111 of the fixture 100, and then the final prosthesis is placed on the abutment. As a result, the implant procedure is completed.

According to the fixture 100 of the present embodiment having such a structure and action, the upper end forms a thin ridge 2a and the lower end forms a relatively wide base bone 2b than the silage 2a. The alveolar bone (2) can be placed while making the most of the structural stability as an artificial tooth root can be secured.

6 is a view of a state in which a fixture of a dental implant according to a second embodiment of the present invention is placed in the alveolar bone, FIG. 7 is an enlarged view of the fixture of the dental implant shown in FIG. 6, and FIG. 8 is It is a top view of FIG.

The fixture 200 of the dental implant according to the present embodiment also includes a body portion 210 having a head 211 and an initial placing portion 220, and a screw portion 130.

The screw unit 130 includes an upper screw portion 131a, a plurality of connecting screw portions 131b, and a lower screw portion 131c as in the above-described embodiment.

A virtual outline trajectory connecting the upper threaded portion 131a, the plurality of connecting threaded portions 131b, and the ends of the lower threaded portion 131c has a trapezoidal shape. The thickness of the thread (t1, t2, see FIG. 4) gradually becomes thinner from the upper screw portion 131a toward the lower screw portion 131c.

In this structure, the body portion 210 is applied in a straight type having a same diameter from the head 211 to the initial placement portion 220.

Thus, even if the fixture 200 of the present embodiment in which the body portion 210 is applied in a straight type is used, the upper portion forms a thin ridge 2a and the lower portion has a relatively wide base bone than the silage 2a. (2b) can be implanted while making full use of the alveolar bone (2) to ensure structural stability as an artificial tooth root.

9 is a view of a state in which a fixture of a dental implant according to a third embodiment of the present invention is placed in the alveolar bone, FIG. 10 is an enlarged view of the fixture of the dental implant shown in FIG. 9, and FIG. It is a top view of FIG.

The fixture 300 of the dental implant according to the present embodiment also includes a body portion 310 having a head 311 and an initial placing portion 320, and a screw portion 130.

In this structure, the body portion 310 is applied as a cone type (cone type) that is wider in diameter toward the initial placement portion 320 from the head 311.

Even though the fixture 300 of the present embodiment in which the body portion 310 is applied in a cone type is used, the upper portion forms a thin ridge 2a and the lower portion is a relatively wide basement bone than the silage 2a. (2b) can be implanted while making full use of the alveolar bone (2) to ensure structural stability as an artificial tooth root.

As described above, the present invention is not limited to the described embodiments, and various modifications and changes can be made without departing from the spirit and scope of the present invention, which will be apparent to those skilled in the art. Therefore, such modifications or variations will have to be belong to the claims of the present invention.

The present invention can be used in dental treatment.

Claims

A body portion in which a head is formed at one side;

An initial placing portion formed on an outer surface of the other end of the body portion, an upper portion forming a thin ridge and a lower portion initially placed in the silage portion of the alveolar bone forming a relatively wide base bone; And

Spirally formed on the outer surface of the body portion, the fixture of the dental implant, characterized in that it comprises a screw portion is formed to gradually increase the height of the mountain toward the initial placement portion in the head region.
The method of claim 1,

The screw portion,

An upper threaded portion adjacent the head;

A lower screw portion adjacent to the initial placing portion; And

Fixture of the dental implant, characterized in that it comprises a plurality of connecting screw portion for connecting the upper screw portion and the lower screw portion continuously.
The method of claim 2,

Fixture of the dental implant, characterized in that the virtual contour trajectory connecting the upper screw portion, the plurality of connecting screw portion and the end of the lower screw portion has a trapezoidal shape.
The method of claim 2,

Fixture of the dental implant, characterized in that the thickness of the thread gradually becomes thinner toward the lower screw portion from the upper screw portion.
The method of claim 1,

The body portion of the dental implant, characterized in that the taper type (taper type) is narrowed toward the initial placement portion from the head.
The method of claim 1,

The initial placement portion,

Fixture of the dental implant, characterized in that it comprises a sharp processing part for the implantation position guide is sharply processed at the other end of the body portion to guide the implantation position for the shrine.
The method of claim 6,

The initial placement portion,

One side is connected to the sharpening processing unit for the insertion position guide, the other side is a fixture of the dental implant, characterized in that it further comprises an initial implantation screw connected to the screw portion is arranged spirally on the outer surface of the body portion.
The method of claim 1,

The body portion of the dental implant, characterized in that the straight type (straight type) having the same diameter from the head to the initial placement.
The method of claim 1,

The body portion of the dental implant, characterized in that having a cone type (cone type) is wider toward the initial placement portion from the head.
The method of claim 1,

Fixing dental implant further comprises a cutting edge portion (cutting edge portion) formed in the screw portion.
The method of claim 10,

The cutting edge portion of the dental implant, characterized in that formed in the screw portion having a direction inclined to one side with respect to the longitudinal direction of the body portion.
The method of claim 11,

The cutting edge portion of the dental implant, characterized in that formed on both sides of the body portion symmetrical with respect to the body portion.
The method of claim 1,

The head has an internal type head in which one region of the abutment is inserted and coupled inwardly, and an extruded portion having a protrusion protruding upward in the upper surface thereof is inserted into the region of the abutment. Fixture of a dental implant, characterized in that provided in any one type of external type head (tunnel).