JP2022032018A - Tooth extraction method and tooth extraction implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tooth extraction method and a tooth extraction tool which can reduce the burden on the tooth to be extracted in the preparation stage and can extract the tooth by pinching the handle portion with a finger or pinching it between the jaw portions of forceps. offer.
SOLUTION: A tooth extraction tool 1 including an anchor portion 12 and a handle portion 10 is used. The hot melt adhesive 30 melted by the hot melt injection tool 3 is injected into the cavity 20 opened in the tooth 2 by cutting and solidified. When the tooth extraction tool 1 is firmly fixed to the tooth 2 by the solidifying portion 31 of the hot melt adhesive 30, the handle portion 10 is pinched with a fingertip to twist the tooth 2 and pull it out while floating it from the alveolar bone.
[Selection diagram] Fig. 2

Description

The present invention relates to a method and a tool for tooth extraction so that tooth extraction can be performed safely and easily and the burden on the patient is lightened.

When extracting a tooth in conventional dental treatment, a tooth is inserted into the periodontal ligament around the root between the tooth and the alveolar bone to displace the tooth, and then the tooth is used for dentistry. It is common to pinch the tooth with a forceps (pench) and pull it out. An example of this forceps is described in detail in JP-A-2002-291753, and an example of a lever is described in detail in JP-A-2009-119095.

However, if you accidentally push your teeth when you pry them with a lever, this may damage your nerves, damage your blood vessels, cause more bleeding, or cause your alveolar bone to collapse. There is a problem.

Therefore, the present inventor once provided a tooth extraction tool of Utility Model Registration No. 3162169 so that tooth extraction can be performed more safely and easily. This is a tooth extraction tool composed of a screw portion for screwing into a tooth and a handle portion, and the handle portion is provided with a non-slip portion. Screw the screw part into the hole in the center of the tooth with the handle part, and when the screw part firmly bites into the tooth, pull it out with the handle part. The root of the tooth is weak against twisting force and can be lifted from the alveolar bone relatively easily when twisted. If this is pulled out, it is possible to easily extract the tooth. Therefore, since the force of tooth extraction is applied only to the tooth to be extracted without using a lever for tooth extraction, it is safe because it is less likely to be affected or affected by adjacent teeth.

JP-A-2002-291753 (Fig. 1) JP-A-2009-119095 (Fig. 15) Utility model registration No. 3162169 Utility model registration No. 3162226 (described later)

Certainly, according to Utility Model Registration No. 3162169, the problems up to that point have been successfully solved. However, since it is necessary to firmly bite the screw part into the tooth, it is unavoidable that the force in the twisting direction is applied to the tooth at this time. Still, when screwing the screw part into the hole in the center of the tooth with the handle part and firmly biting it into the tooth to fix it, is it possible to prevent the force in the twisting direction from being applied to the tooth so much? The subject of the present invention is whether it is possible to prevent the burden on the tooth to be pulled out, the alveolar bone at this site, and the adjacent tooth.

Prior to solving the above-mentioned problems, the present inventor has obtained the finding that such a tooth extraction tool may be fixed to a tooth by a method other than directly screwing the screw portion into the tooth.

Therefore, in the present invention, a tooth extraction tool including an anchor portion for fixing in the tooth and a handle portion for pulling the anchor portion is prepared, and the tooth is cut larger than the diameter of the anchor portion. A cavity (dent) is formed, the anchor is placed in the cavity, and a hot melt adhesive is injected using a hot melt injection tool. After the hot melt adhesive cools and the anchor is fixed, the anchor is fixed. Provided is a tooth extraction method in which a tooth is extracted using a handle portion. What is characteristic of the present invention is not the time when the tooth is extracted, but the time when the tooth extraction tool is fixed to the tooth.

This usage and action are as follows. First, the tooth to be extracted is cut to create a cavity (dent), but the size of this depression should be large enough to accommodate the anchor (between the tooth and the anchor). (Because hot melt adhesive enters), the degree of looseness when the anchor part is placed in the recess is left to the discretion of the dentist. The anchor part of the tooth extraction tool was first placed in this cavity, then the hot melt adhesive was injected using the hot melt injection tool, and when the hot melt adhesive cooled and solidified, the anchor part was fixed. become. As a result, it is no longer necessary to screw the screw portion into the tooth as in the utility model registration No. 3162169 described above. The solidified hot melt adhesive may be called a plastic core or the like by analogy with the prior art. As will be described later, the case where a resin is used is a resin core.

When the hot melt adhesive solidifies, the tooth and the tooth extraction tool become one, so the handle part should be picked up with a finger or pinched by the jaw part of the forceps to pull out. If the root is twisted at this time, the tooth is lifted from the alveolar bone, so that the tooth extraction is relatively easy and safe. In addition, since the force of tooth extraction is applied only to the tooth to be extracted, it is less likely to be affected or affected by adjacent teeth. If the handle has a non-slip portion, the force of picking it with a finger or pinching it with forceps and pulling it can be effectively applied to the anchor portion, that is, the tooth to be pulled out. Further, in the case where the handle portion is provided with a hook portion, the tip of forceps or a hook can be firmly hooked on the hook portion. Even if the handle portion is provided with a hole portion, this can be used as a hooking portion. A step portion formed between the anchor portion and the handle portion can also be used as a hooking portion.

Any kind of hot melt adhesive may be used, but it is preferable that the hot melt adhesive is solidified as soon as possible because of the limitation of the treatment time. Generally, APOA (Amorphous Poly Amorphous Olefin) resin, EVA (Ethylene Vinyl Acetate) resin, and the like can be used. Another way to accelerate the solidification of the hot melt adhesive is to force the hot melt adhesive to cool by blowing air or running water. In addition, the hot melt adhesive is set in the hot melt injector, compared to the fact that other adhesives are stored in the tube in a viscous liquid form and there is the trouble of removing and tightening the cap. The fact that it can be used as it is at any time is optimal for tooth extraction. If the hot melt injection tool imitates a pistol, it has the advantage that it is easy to aim at the target tooth.

The shape of the anchor portion is arbitrary, but a columnar shape or a conical shape is preferable. In addition, it is advisable to provide a ball-shaped, dish-shaped, or spine-shaped check valve at the tip of the anchor portion so that the hot melt adhesive does not separate from the solidified hot melt adhesive. If the shape of the anchor portion is screw-shaped (not for screwing into the tooth), the same effect as the check valve can be obtained.

By the way, it is a tooth extraction tool consisting of the anchor part and the handle part for pulling the anchor part. At this time, there are the following problems. That is, there is a shaft part that connects the anchor part and the handle part, but if this is long, the distance between the anchor part and the handle part becomes long, and even if you try to hook the handle part with a lever, it will not be stopped well. Or, the handle part tends to be unable to be pulled unless the tip of the lever is moved significantly. It is a good idea to shorten the shaft part and narrow the space between the anchor part and the handle part, but then when injecting the hot melt adhesive into the cavity part using the hot melt injection tool, the handle part will It can get in the way. Therefore, the present inventor has obtained the finding that the distance between the anchor portion and the handle portion may be variable.

That is, in the present invention, it is composed of an anchor portion for fixing to the cavity provided in the tooth, a handle portion for pulling the anchor portion, and a shaft portion connecting the two, and the anchor portion and the handle portion are provided via the shaft portion. It was used as a tooth extraction tool having an interval adjustment part that changes the interval between the tooth and the tooth. Since the space between the anchor part and the handle part is left by this interval adjusting part and the hot melt adhesive is injected into the cavity part by using the hot melt injection tool, the handle part interferes with the hot melt adhesive injection. It will never be. Then, when the lever is hooked on the handle portion, the space between the anchor portion and the handle portion is narrowed by the interval adjusting portion.

Further, a screw may be engraved on the shaft portion, and the handle portion may be screwed into the screw to form the spacing adjusting portion. If you turn this screw counterclockwise with your fingertip, you can make a gap between the anchor part and the handle part, and conversely, if you turn it clockwise, you can narrow the space between the anchor part and the handle part.

According to the present invention, in the preparatory stage for fixing the tooth extraction tool to the tooth, the tooth is cut to a diameter appropriately larger than the diameter of the anchor portion to form a cavity (dent), and the anchor is hot-melted in the cavity. Since it is fixed with an adhesive, it has the effect of reducing the burden on the tooth to be extracted in the above preparation stage. If it is fixed in this way, the tooth can be pulled out by pinching the handle portion with a finger or pinching it between the jaw portions of forceps.

It is explanatory drawing of Example 1. FIG. It is explanatory drawing of Example 1. FIG. It is explanatory drawing of the operation method of Example 1. FIG. It is explanatory drawing of Example 2. FIG. It is explanatory drawing of Example 2. FIG. It is explanatory drawing of Example 2. FIG. It is explanatory drawing of the operation method of Example 2. It is explanatory drawing of Example 3. FIG.

Hereinafter, three types of examples of the present invention will be described with reference to FIGS. 1 to 8, but the present invention is not limited to these examples.

In the tooth extraction method of this embodiment in which a doctor performs a tooth extraction procedure, a tooth extraction tool 1 of FIG. 2 and a hot melt injection tool 3 equipped with a hot melt adhesive 30 as an adhesive are used. The tooth extraction tool 1 is composed of an anchor portion 12 to be housed in a cavity portion 20 opened in the tooth 2 by cutting described later and a handle portion 10, and the handle portion 10 is provided with a non-slip convex portion 13. .. These anchor portions 12 and the handle portion 10 are connected via a shaft portion 11 as a rotation center axis. Further, the anchor portion 12 has a spherical shape. The material of the tooth extraction tool 1 can be selected arbitrarily, but a nickel-titanium alloy is used here. Further, regarding the non-slip portion of the handle portion 10, a concave portion may be used instead of the convex portion 13, or the convex portion and the concave portion may be mixed. Alternatively, many round protrusions such as milk on the bell may be arranged.

After preparing such a tooth extraction tool 1, a cavity portion 20 having a spherical anchor portion 12 inserted into the tooth 2 is formed by a cutting tool, and the anchor portion 12 is housed therein (step S1). Next, FIG. 2 is a schematic representation of the hot melt injection tool 3 that is considerably smaller than the actual one, but it is generated by energizing the hot melt injection tool 3 in the cavity portion 20 in which the anchor portion 12 is housed. The hot melt adhesive 30 melted by the heat is injected to solidify the hot melt adhesive 30. In this way, the tooth extraction tool 1 is firmly fixed to the tooth 2 by the solidifying portion 31 of the hot melt adhesive 30 (step S2). Therefore, if the handle portion 10 is pinched with a fingertip to twist the tooth 2, the tooth root is weak against the twisting force and can be relatively easily lifted from the alveolar bone by twisting, so the handle portion 10 is pulled out in accordance with this. For example, the tooth can be easily extracted (step S3).

The handle portion 10 is picked up by the thumb and the index finger or the middle finger and rotated in either the left or right direction. At this time, since the handle portion 10 is provided with the non-slip convex portion 13, saliva is produced. It is unlikely that your finger will slip due to such factors. At this time, the cavities are floating due to the twist on the cavities. Then, if the handle portion 10 is strongly pinched with a finger or pinched by the jaw portion of the forceps and pulled in the direction of extracting the tooth, the tooth is easily extracted. The adhesive strength of this solidified hot melt adhesive 30 is very strong, and this series of treatments is very safe. This tooth extraction procedure is shown in FIGS. 1 to 3. Reference numeral 21 in the figure indicates the gum.

The tooth extraction method of this embodiment will be described with reference to FIGS. 4 to 7. As shown in FIG. 4, the tooth extraction tool 4 used in the tooth extraction method of this embodiment has a substantially screw-shaped anchor portion 42 and a handle portion 40 to be housed in a cavity portion 20 opened in a tooth, and a shaft portion connecting them. It consists of 41. The shaft portion 41 and the handle portion 40 have a T-shape.

Further, the tooth extraction tool 5 used in the tooth extraction method of this embodiment is composed of a handle 50 and a substantially oval-shaped hooking portion 51 provided at the tip portion thereof. In particular, the bottom portion of the hooking portion 51 is a ship bottom portion 52 that is convexly curved in the longitudinal direction and downward of the tooth extraction tool 5. This is similar to the shape of a spoon, but the portion of the hook 51 near the handle 50 is thickly formed. Further, a hooking groove 53 for bifurcating this portion is formed at the tip end portion of the hooking portion 51. Further, at the rear end of the hooking portion 51, there is a circular hole having a size that allows the handle portion 40 of the tooth extraction tool 4 having a substantially screw shape to pass through, and a long shape having a thickness that does not allow the handle portion 40 that continues to the rear to pass through. A hook hole 54 formed by continuously connecting the holes is formed. The hooking groove 53 reaches the edge of the hooking portion 51, but the hooking hole 54 does not reach the edge of the hooking portion 51. A hook hole 54 can be provided instead of the hook groove 53. The tooth extraction tool 4 is hooked on the hook groove 53 and the hook hole 54. The handle portion 40 enters the long hole so that it will not come off during tooth extraction. For convenience, a string through hole 55 is provided at the other end of the handle 50.

After preparing such tooth extraction tools 4 and 5, a cavity portion 20 is formed by a cutting tool to the extent that a substantially screw-shaped anchor portion 42 can be accommodated in the tooth, and the anchor portion 42 of the tooth extraction tool 4 is accommodated therein. Step S4). Subsequently, by energizing a hot melt injection tool 3 (not shown) in the cavity 20 around the anchor portion 42, the hot melt adhesive 30 melted by the generated heat is injected to solidify the hot melt adhesive 30. In this way, the tooth extraction tool 4 is firmly fixed to the tooth 2 by the solidifying portion 31 of the hot melt adhesive 30 (step S5).

Next, in order to grasp the handle 50 of the tooth extraction tool 5 and hang the hook hole 54 of the hook portion 51 on the handle portion 40 of the tooth extraction tool 4, the upper surface portion of the dentition adjacent to the front of the tooth decay is formed by the ship bottom portion 52. While exploring, hook the hook hole 54 on the handle portion 40. In this way, the tooth extraction tool 4 is pulled out by pulling up the handle 50 of the tooth extraction tool 5 (step S6).

Regarding the search for the bottom portion 52, by having a wide bottom portion 52 similar to the shape of a spoon, it is possible to search not only the upper surface portion of the dentition but also the corners of the dentition. Since it is possible to search for the corners of teeth and the stepped parts of the dentition, it was said that the patient's mouth was difficult to open, the shape of the mouth at that time, the posture of the doctor at that time, the alignment and meshing of teeth, etc. It is possible to deal with special circumstances. To express this, it means that the axis is aligned with the contact point between the tooth extraction tool 4 of the hook hole 54 and the tooth of the ship bottom 52 and the handle 50.

In this way, there is almost no effect on adjacent teeth, tooth extraction can be performed safely, stably and easily, and the burden on the patient is reduced. It also has the effect of making the dentist's job easier and less fatigued. Since the shape of the hook 51 is substantially oval, there is little resistance when it is put into the patient's mouth, and it is a safe tooth extraction tool in this sense as well.

In step S6, contrary to the above, the ship grips the handle 50 of the tooth extraction tool 5 and hooks the hook groove 53 having the tip of the hook 51 bifurcated on the handle 40 of the tooth extraction tool 4. The hook groove 53 is hooked on the handle portion 40 while searching for the upper surface portion of the dentition adjacent to the rear of the tooth decay on the bottom portion 52. In this way, it is also possible to pull out the tooth extraction tool 4 by pushing down the handle 50 of the tooth extraction tool 5.

The tooth extraction tool 4 of this embodiment can be operated only with a fingertip without using the tooth extraction tool 5 similar to the shape of the spoon described above. That is, the tooth is pulled out by picking the handle portion 40 with a finger.

In the tooth extraction method of this embodiment in which a doctor performs a tooth extraction procedure, the tooth extraction tool 6 of FIG. 8 and the hot melt injection tool 3 equipped with the hot melt adhesive 30 as an adhesive are used, but the hot melt injection tool 3 is used. It is represented schematically smaller than it actually is.

The tooth extraction tool 6 includes an anchor portion 60 to be housed in the cavity portion 20 opened in the tooth 2 by the above-mentioned cutting, and a handle portion 63 having a non-slip convex portion 13, and the anchor portion 60 and the handle portion 63. Is connected via a shaft portion 61 as a rotation center shaft. Further, a screw 62 is engraved on the shaft portion 61, and the handle portion 63 is configured to be screwed into the screw 62 so that the shaft portion 61 can be moved in the vertical direction. This part is the interval adjusting part in the present invention. The anchor portion 60 has a spherical shape.

First, the handle portion 63 is turned counterclockwise with a fingertip by the spacing adjusting portion to leave a space between the anchor portion 60 and the handle portion 63. This is to prevent the handle portion 63 from interfering with the injection of the hot melt adhesive. Next, the anchor portion 60 is housed in the cavity portion 20 formed by the cutting tool. Then, the hot melt adhesive is injected into the cavity 20 using a hot melt injection tool to provide the solidified portion 31.

Subsequently, the handle portion 63 is turned clockwise with a fingertip by the spacing adjusting portion to narrow the space between the anchor portion 60 and the handle portion 63, and then, for example, the hook groove of the tooth extraction tool 5 of the above-mentioned Example 2 is inserted between them. Try to multiply by 53. Since the feeling between the anchor portion 60 and the handle portion 63 is narrow, when the tooth extraction tool 5 is operated like a lever, the force of tooth extraction is efficiently transmitted to the handle portion 63.

The anchor portion 60 and the handle portion 63 are connected to each other via the shaft portion 61, and the handle portion 63 is provided with an interval adjusting portion that can be screwed into the screw 62 to move the shaft portion 61 in the vertical direction. However, since the spacing adjustment section can be configured by using a structure that can fix the length, for example, by using an antenna instead of screwing with the screw 62, this side can be arbitrarily designed. You can do it.

According to the tooth extraction method and the tooth extraction tool of the present invention, it is safe, secure and less burdensome for children and elderly patients. Therefore, it is possible to provide the present invention for pets.

1 Tooth extraction tool 10 Handle part 11 Shaft part 12 Anchor part 13 Convex part 2 Tooth 20 Cavity part 21 Tooth stalk 3 Hot melt injection tool 30 Hot melt adhesive 31 Solidification part 4 Tooth extraction tool 40 Handle part 41 Shaft part 42 Anchor part 5 Tooth extraction Tool 50 Handle 51 Hook 52 Ship bottom 53 Hook groove 54 Hook hole 55 String threading hole 6 Tooth extraction tool 60 Anchor 61 Shaft 62 Screw 63 Handle

Claims (6)

A tooth extraction tool consisting of an anchor part for fixing in the tooth and a handle part for pulling the anchor part is prepared, and the tooth is cut larger than the diameter of the anchor part to form a cavity part. A tooth extraction method in which the anchor is placed in the tooth cavity, a hot melt adhesive is injected using a hot melt injection tool, and when the hot melt adhesive cools and the anchor is fixed, a tooth is extracted using the handle. The tooth extraction method according to claim 1, wherein the hot melt adhesive is cooled by blowing air or running water. The tooth extraction method according to claim 1, wherein a tooth extraction tool having a non-slip portion on the handle portion is used, and the tooth extraction is performed by pinching the handle portion with a finger. The tooth extraction method according to claim 1, wherein a tooth extraction tool having a hooking portion on the handle portion is used, and the tooth extraction is performed by hooking the hooking portion on a pulling tool. It consists of an anchor part for fixing to the tooth cavity provided in the tooth, a handle part for pulling this anchor part, and a shaft part connecting the two, and the distance between the anchor part and the handle part is provided via the shaft part. A tooth extraction tool with a variable interval adjustment unit. The tooth extraction tool according to claim 5, wherein a screw is engraved on the shaft portion, and the handle portion is screwed onto the screw to form the spacing adjusting portion.

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