KR0116369Y1 - Implant fixing for transplantation surgery for artificial teeth - Google Patents

Abstract

1. TECHNICAL FIELD OF THE INVENTION

Fixture of Artificial Teeth Implant Surgery

2. The technical problem the invention is trying to solve

The present invention is to improve the efficiency and success rate of denture transplant surgery by improving the configuration of implant implants.

3. Summary of the solution of the design.

By forming the inclined surface (4) downwardly to the lower side of the conventional fixture (F) in which the engaging protrusion (5) protrudes above the threaded portion (1) formed with an etched portion (2) at the lower end and the screw hole (6) Will.

4. Significant Uses of the Invention.

For fixture fixing of dental implants.

Description

Fixture of denture implant implant

1 is a perspective view showing a preferred embodiment of the present invention.

2 is a cross-sectional view of the implanted state of the present invention.

Figure 3 is an exploded perspective view showing the configuration of a conventional implant.

4 is a cross-sectional view of the engaged state of FIG.

5 is a cross-sectional view of a conventional implant procedure.

Figure 6 (a) is a side view of the detachment of the fixture and the cover screw of Figure 3, (b) is a side view of the separation state of Figure 3, (c) is a cross-sectional view of the abutment and abutment screw.

7 is an external view showing the configuration of an existing implant.

8 is a diagram showing the implantation procedure of the implant, (a) ~ (f) is a process of drilling a hole in the jawbone.

(g) ~ (i) is a process chart having a certain healing period.

(j) ~ (k) is a cross-sectional view of the process of tightening the teeth after healing.

9 is a diagram showing the size of a fixture diameter (DIAMETER Ø 3.75 mm) head portion using more than 80% of the conventional implant size.

10 is a configuration diagram showing the size of the product of the present invention.

* Explanation of symbols used in the main part of the drawing

A: ABUTMENT C: CYLINDER

F: Fixture S1: Cover Screw

S2: Avert Screw S3: Cylinder Screw

1: thread part 2: POCKET CHIP

3: head 4: slope

5: EXTERNAL HEXAGON TOP

6: screw hole 7: jaw bone (JOW)

7a: upper jaw bone hard layer (COPMPACT BONE = dense bone)

7b: Jawbone sponge bone (SPONGY BONE = CANCELLOUS BONE)

8: MEMBRANES 9: Teeth (prosthesis replacement produced by CROWN)

The present invention is an improvement of the implant (FIXTURE) of the implant for artificial teeth implants (IMPLANT), a feature of the present design is to improve the safety and accuracy of artificial teeth implantation by improving the upper head of the fixture. When implanting a conventional implant fixture (F), the jawbone is short because the inclination length (4a) (0.3 mm) of the fixture head (see Fig. 9) is short even if it is fixed to the upper hard layer 7a of the jawbone. It is of technical construction that the bone volume (thickness: 2-5 mm) of the upper hard layer 7a cannot be utilized sufficiently, and it is difficult to expect effective stress distribution from excessive vertical loads or concentrated external and lateral pressures temporarily. In addition, the short length of the inclined surface (b of FIG. 9) is easy to fix the fixture (F) even if it is inadvertently damaged when the upper hard layer (7a) and the hole is large when the hole is drilled in the upper hard layer (7a) of the jawbone. Provides cause to be shaken

Accordingly, the damaged bone tissue is regenerated by the membrane (MEMBRANES) process, which usually fills the bone hard powder (8) with the damaged upper hard layer (8) to induce the bone fusion between the fixture (F) and the pubis (7) tissue firmly. As such, the membrane work is time-consuming, has a high risk of entering foreign substances, and has the disadvantages such as lowering the success rate of the procedure.

On the contrary, the present invention is intended to solve the technical configuration problem of the conventional implant fixture, and the gist of the present invention is to increase the diameter of the fixture head diameter 3c and the inclination angle 3b as shown in FIG.

The present invention relates to a fixture of a denture implant implant that can be completely fixed by drilling a hole in the upper hard layer (7a) of the jawbone, in particular, a sufficient amount of bone in the upper hard layer (7a) of the jawbone It is more relevant to the use.

Looking at the configuration of the present invention as follows.

The same code | symbol was used for the same part as the conventional component part.

In general, there are many factors in order to implant implant fixture (F) to maintain the fixation for a long time, but the most important of them are as follows.

The first is to proceed with the fixation (F) implantation procedure (figure 8) without difficulty. The second is to accurately diagnose the jaw bone before the fixation (F) implantation. Select one.

(Reference: 25th Anniversary Conference, Kyung Hee Medical Center, P12. Yeo Gap Kim, Kyung Hee University College of Dentistry)

FINT ELEMENT METHOD (Reference: Dental Implantology, Hubertus Spiekermann with T.Hassel, S.Jovanovic, and J. Richter. Prof. Inho Cho, School of Dentistry and International Dentistry Press, 1996.09.06) is widely used as a research method for stress distribution in the jaw bone according to the type of implant fixture (F). The results show that the larger the diameter of the implant fixture (F) is, the better the stress dispersion is in the finite element method.

Third, to maximize the bone of the upper hard layer (7a) of the jaw bone, the fixture (F) to the head (3) the inclined surface (4) to be completely in close contact.

Fourth, in addition to the fact that the larger diameter of the fixture (F) in the finite element research method is shown to be more advantageous to the stress distribution, the fixture (F) to make full use of the bones of the upper hard layer (7a) of the jaw bone The size of the inclined surface 4 of the head 3 is to insert a fixture F as shown in Table 1.

Looking at the technical configuration of the present invention in more detail as follows. (See Figure 10 and Table 1)

end. Fixture Head Diameter (FIXTURE HEAD DIAMETER) (3c)

The diameter (3c) of the conventional implant fixture (F) head 3 occupies 80% or more of the market share (fixture (F) head diameter Ø3.75mm, F1 of Fig. 9 (b)) 4.1mm ( 3c) of FIG. 9 (b) is the most representative.

The diameter 3c of the head 3 is +0.35 mm (4.1 mm) compared to the diameter of the fixture F (F1, Ø3.75 mm in FIG. 10 (b)), but this is almost a straight line with a slight difference in the diameter. Close to (Fig. 9 (b)), it is not easy to disperse the stress from continuous and intensive external pressure or lateral pressure, so there is a possibility that the fixture F may be shaken, and for a long time There is a problem when using it.

In addition, when placed in the posterior portion (molar) rather than anterior teeth (ear tooth) is more problematic. Because, when chewing food, more than 90% of molar teeth are used in molar teeth, and the load received at the time of chewing is average 25 ~ 40㎏. Therefore, it is said to be vulnerable to the side.

The present invention is intended to prevent such problems as possible,

The diameter of the present invention (F) head 3 (3c in FIG. 10) is that stress dispersion is easy by 0.7 mm larger than that of the conventional product F (3) head 3 (3c in FIG. 9). .

Then, when the diameter of the fixture (F) head 3 (3c in FIG. 10) is Ø4.8 mm, it is equivalent to that of the conventional fixture diameter (F1) Ø 4.5 mm, it is applied to the posterior molar jawbone. Placement of the diameter of the present fixture head 3 (3c in FIG. 10) Ø4.8 mm rather than the conventional fixture (F) head 3 diameter (3c) Ø㎜4.1 mm is helpful for holding and fixing. The holding force persists semi-permanently even in the millstone direction.

I. Fixture Head Height (FIXTURE HEAD HEIGHT) (3a + 3b)

The height of the conventional implant fixture (F) head 3 (3a + 3b in FIG. 9) is from as low as 1.0 mm to as high as 1.2 mm, and is utilized only less than 50% of the bone volume of the upper hard layer 7a of the jaw bone. There is a concern that the fixture F may fluctuate from excessive vertical loads or continuous external and lateral pressures.

The present invention solves this problem by fixing the height of the fixture (F) head 3 (3a + 3b in FIG. 10 and Table 1) to the diameter (F1) of the fixture F (Ø3.3, Ø3.75). And Ø4 mm were 2.3 mm, and Ø4.5 and Ø5 mm were 2.0 mm.

Since such height can fully utilize the upper hard layer 7a of the jawbone, when placed, it is possible to prevent the fixture F from excessive vertical load or continuous external and lateral pressure.

Then, the height of the head 3 (3a + 3b in FIG. 10) of the diameter F1 Ø4.5 mm and the diameter Ø5 mm of the fixture F is determined by the diameter F1 Ø3.3 mm, Ø3 of the fixture F. The diameter of the fixture F head (3c in FIG. 10) is large because the diameter (75 mm, 0.3 mm lower than the height 3a + 3b of the 4 mm head 3) is large.

All. Fixture Head Slope (angle) (4)

Conventional implant fixture (F) head (3) inclined surface (Fig. 10 (4) is short in length when the hole is placed in the upper hard layer (7a) of the jaw bone, as shown in (e) of Fig. 9, the upper In the hard layer (7a), the counter sinking (COUNTER SINKING) must be made to fit the upper layer portion, and also placed in place.

And during the initial one year after implantation of the fixture (F), since the bone loss is about 1 to 1.5 mm mainly in response to the surgical damage, the problem of the fixture (F) flow (shake) may occur.

The present invention has a high fixation head height (3a + 3b in Table 1), which facilitates stress dispersion from excessive vertical loads or continuous external and lateral pressures until the upper hard layer 7a is completely absorbed. F) can also be prevented.

Table 1 below shows the specifications of the present invention fixture (F) in detail.

As described above, the present invention is fully implanted using the bone of the upper hard layer (7a) of the jaw bone, so bone loss and absorption are mainly in response to surgical damage in the first year after the fixation. After that, bone resorption of 0.05 to 0.1 mm per year (Reference: Implant Selection, Implantation, Prosthesis and Maintenance, P299, Kim Myung Rae, B.C., 1997), followed by 10 Vertical bone loss of about 2 mm occurs over the years, so that the diameter of the fixture (F) head 3 (3c in FIG. 10) and the height (3a + 3b in FIG. 10) are designed to be better than the conventional implant fixture (F). It is completely unaffected because it is completely different.

In addition, 2 mm or more of bone absorption compared to bone volume (2-4 mm thickness) is still fixed because of the length of the inclined surface (4 in Table 1), and it is still fixed from excessive vertical load or continuous external pressure and lateral pressure. The fluctuation of F) can be prevented, and the function of stress distribution is also maintained continuously.

In addition, as shown in Fig. 8 (C) to (F), when the hole is drilled for the fixture F, the upper part of the upper hard layer 7a is inadvertently damaged, or the hole is large. Can be fixed.

The present invention is because the diameter of the fixture (F) head 3 (3c in FIG. 10) is large, and the length (3a + 3b in FIG. 10) of the inclination surface (4 in FIG. 10) of the fixture F is long, and the height is high. Because it is high, and there is a bone thickness.

Claims (1)

It consists of a threaded portion (1) having an etched portion (2) at the lower end, a defect protrusion (5) on the top of the screw portion (1) and a screw hole (6) formed inside the threaded portion (1) from the upper surface of the coupling protrusion (5). In the configuration of a normal implant fixture (F), On the head portion 3 of the fixture F, an inclined surface 4 having an inclination angle of 68 ° to 76 ° inclined downward inward is formed, and the head 3 on which the inclined surface 4 is formed has its height. Fixture of a denture implant implant, characterized in that consisting of more than 1 ~ 1.3㎜ higher than the existing diameter and 0.3 ~ 0.7㎜ larger than the existing diameter.