TW202332412A - Tooth extraction kit capable of reducing the load applied to the tooth to be extracted, the alveolar bone at the site, and/or the adjacent teeth - Google Patents

Abstract

An object of the present invention is to provide a tooth extraction aid or the like capable of reducing the load applied to the tooth to be extracted, the alveolar bone at the site, and/or the adjacent teeth. The solution of the present invention is to use a tooth extraction aid (1) having a first auxiliary base body (11) and a second auxiliary base body (12). The first auxiliary base body (11) is inserted into the recess (X0) formed on the tooth (X2), and a hot melt adhesive (M) is injected. In the state where the tooth extraction aid (1) is firmly fixed to the tooth (X2) by the cured hot melt adhesive (M), the operator holds the second auxiliary base body (12) with fingertips so that the tooth (X2) is pulled out from the gum (X1) while being twisted.

Description

Tooth extraction aids and tooth extraction kits

The present invention relates to an auxiliary tool for tooth extraction.

Tooth extraction during dental treatment is generally performed between the tooth and the alveolar bone. A tooth extraction rod is inserted into the periodontal ligament around the tooth root to dislocate the tooth, and then dental tooth extraction pliers are used. The tooth is held and extracted (for example, refer to Patent Documents 1 and 2).

However, if the tooth is accidentally pushed in when levering the tooth through extraction, it may cause nerve damage or blood vessel damage, increase bleeding, or cause the alveolar bone to be dented.

Therefore, the inventor of the present invention proposes a tooth extraction auxiliary tool that can perform tooth extraction more safely and easily (for example, see Patent Document 3). The tooth extraction auxiliary tool has a screw part screwed into the tooth and a handle part, and an anti-slip part is formed on the handle part. Hold the handle and screw the screw into the hole in the center of the tooth. After the screw is firmly bitten into the tooth, force is applied to the handle to pull the tooth out of the gums. If there is a torsional force acting on the root of the tooth, the tooth will be more easily lifted from the alveolar bone, so the tooth can be easily extracted. Therefore, there is no need to use an extraction truss during tooth extraction, and the force of tooth extraction will only be exerted on the tooth to be extracted, so it is rarely affected by or affects adjacent teeth, so it is safe (for example, Refer to patent document 4). [Prior technical literature] [Patent Document]

[Patent Document 1] Japanese Patent Application Laid-Open No. 2002-291753 (Fig. 1) [Patent Document 2] Japanese Patent Application Laid-Open No. 2009-119095 (Fig. 15) [Patent Document 3] Japanese Utility Model Registration No. 3162169 [Patent Document 4] Japanese Utility Model Registration No. 3162226

[Problem to be solved by the invention]

However, since the screw part must be firmly bitten into the teeth, a twisting force is inevitably exerted on the teeth at this time. Even so, when screwing the screw part into the hole in the center of the tooth with the handle part and firmly biting into the tooth for fixation, it is preferable not to exert too much force in the twisting direction on the tooth.

Therefore, the present invention aims to provide a tooth extraction auxiliary tool, etc., which can reduce the load placed on the tooth to be extracted, the alveolar bone of the site, and/or the adjacent teeth. [Technical means to solve problems]

The tooth extraction auxiliary tool of the present invention is equipped with: The first auxiliary base is inserted into the recess formed in the tooth; 2nd auxiliary base; The connecting portion connects the aforementioned first auxiliary base body and the aforementioned second auxiliary base body; and The distance adjusting mechanism is used to adjust the distance between the first auxiliary base and the second auxiliary base through the connecting portion.

The tooth extraction auxiliary device composed of the above is preferably: The distance adjustment mechanism is constituted by a male thread portion formed in the connecting portion and a female thread portion formed in the second auxiliary base body and screwed into the male thread portion.

The tooth extraction tool set of the present invention is composed of the following: the aforementioned tooth extraction auxiliary tool of the present invention; and A tooth extraction tool is formed with an engaging portion that is guided to a gap between the second auxiliary base and the tooth and engaged in a state where the first auxiliary base is inserted into the recessed portion formed in the tooth. on the aforementioned second auxiliary substrate.

The tooth extraction equipment set composed of the above is preferably: The aforementioned tooth extraction tool is provided with: a first base body extending in the length direction; and a second base body connected to one end of the first base body in the length direction and inserted into the patient's oral cavity. Among the engaging holes composed of the first hole and the second hole, at least one of them is formed in the second base body as the aforementioned engaging portion; the first hole is configured to divide the front end portion of the aforementioned second base body. The engagement notch and the second base allow the second auxiliary base to pass through; the second hole is configured to prevent the second auxiliary base from passing through and is continuous with the first hole.

The tooth extraction equipment set composed of the above is preferably: In the tooth extraction tool, the second base system is formed in a convex curved surface, and the bottom of the second base is formed in a flat shape, or in a convex curved surface with a smaller curvature than the periphery of the second base. [Effects of the invention]

The tooth extraction auxiliary tool and the tooth extraction tool set according to the present invention are in a state where the tooth forms a recess (cavity or depression) to which the first auxiliary base can be inserted, and the first auxiliary base is inserted into the recess. , the hot melt adhesive injected into the concave portion is solidified, and the tooth extraction auxiliary tool is fixed to the tooth. After that, force is applied to the second auxiliary base, whereby the tooth can be easily pulled out from the gums. This can reduce the load placed on the tooth to be extracted and the adjacent teeth.

(First Embodiment) (composition)

A tooth extraction auxiliary tool 1 according to the first embodiment of the present invention shown in Fig. 1 includes a first auxiliary base 11, a second auxiliary base 12, and a connecting portion 10 that connects the first auxiliary base 11 and the second auxiliary base 12. The material of the tooth extraction auxiliary tool 1 can be selected arbitrarily, but it can be formed of a nickel-titanium alloy, for example.

The first auxiliary base 11 is formed into a substantially spherical shape. As shown in FIG. 1 , the size of the first auxiliary base 11 is designed to be insertable into the recessed portion X0 that is provided to penetrate the crown of the tooth X2 with the root embedded in the gum X1. In addition to a substantially spherical shape, the shape of the first auxiliary base 11 may also be a substantially elliptical sphere, a substantially hemispherical shape, a substantially cubic shape, a substantially rectangular parallelepiped shape, a substantially cylindrical shape, a substantially triangular prism shape, a substantially conical shape, a substantially pyramidal shape, or a substantially truncated cone shape. Or roughly pyramidal, or various shapes that combine these shapes. This is the same for other embodiments.

The second auxiliary base 12 is formed in a substantially cylindrical shape or a substantially disc shape with a larger diameter than the first auxiliary base 11 . The second auxiliary base 12 may have a substantially cylindrical or disc shape, a substantially regular polygonal plate shape, a substantially spherical shape, a substantially elliptical spherical shape, a substantially hemispherical shape, a substantially cubic shape, a substantially rectangular parallelepiped shape, or a substantially cylindrical shape. , roughly prism-shaped, generally conical, generally pyramid-shaped, generally truncated cone-shaped or generally truncated cone-shaped, or various shapes that combine these shapes. This is the same for other embodiments.

On the side surface of the second auxiliary base 12, a plurality of convex strip portions 120 protruding outward in the radial direction in a linear shape extending in the forward axial direction are formed to be spaced apart in the circumferential direction. Instead of the plurality of convex strips 120 , a plurality of grooves or concave strips may be formed on the side surface of the second auxiliary base 12 in a linear manner extending in the forward axial direction and recessed radially inward, and arranged separately in the circumferential direction. Instead of the plurality of convex strip portions 120 , a plurality of substantially hemispherical convex portions protruding outward in the radial direction may be formed in a dispersed manner on the side surface of the second auxiliary base 12 to form various uneven structures.

The connecting portion 10 is formed in a substantially cylindrical or rod shape with a smaller diameter than the first auxiliary base 11 . The connecting portion 10 is integrally or detachably fixed to one end of the first auxiliary base 11 so that its central axis coincides or substantially coincides with the central axis of the first auxiliary base 11 . The connecting portion 10 is integrally or detachably fixed to the second auxiliary base 12 at the other end so that its central axis coincides or substantially coincides with the central axis of the second auxiliary base 12 .

The shape of the connecting part 10 may be various shapes, such as a curved shape, a spiral shape, etc., in addition to a substantially cylindrical shape. The connecting portion 10 may be fixed to one end of the first auxiliary base 11 so that its central axis is inclined with respect to the central axis of the first auxiliary base 11 . The connecting portion 10 may be fixed to the second auxiliary base 12 at the other end so that its central axis is inclined with respect to the central axis of the second auxiliary base 12 . This is the same for other embodiments.

(Instructions) Next, a method of using the tooth extraction auxiliary tool 1 configured as described above will be described. First, as shown in FIG. 1 , a cutting instrument is used to form a recess X0 on the crown of the tooth X2 that is large enough for the first auxiliary base 11 to enter, and the first auxiliary base 11 is inserted into the recess X0 ( FIG. 2 / STEP1). Next, the melted hot-melt adhesive M is injected into the recessed portion X0 in which the first auxiliary base 11 is inserted using a hot-melt injection tool, and the hot-melt adhesive M is solidified. Thereby, as shown in Figure 1, the tooth extraction auxiliary tool 1 is fixed to the tooth X2 through the solidified hot melt adhesive M (Figure 2/STEP2).

As a hot melt adhesive M, in view of the limitation of treatment time, it is better to use one that can be cured as quickly as possible. Generally speaking, APOA (Amorphous Poly Alpha Olefin, amorphous polyalpha olefin) resin or EVA (Ethylene Vinyl Acetate, ethylene/vinyl acetate) resin, etc. can be used. In order to speed up the solidification of the hot melt adhesive M, there is a treatment method such as forcibly blowing air or water to cool the hot melt adhesive M. In addition, compared with other adhesives that are stored in the tube in a viscous state and require tedious installation and removal of the cover, the hot-melt adhesive M can be used directly at any time as long as it is installed in the hot-melt injection tool in advance, so it is suitable for Tooth extraction treatment. In the case where the hot melt injection tool is shaped like a pistol, it is easy to aim at the target tooth X2.

Furthermore, the operator holds the second auxiliary base 12 with his fingertips, and applies a twisting force to the second auxiliary base 12 while moving the second auxiliary base 12 in a direction away from the gum X1, thereby moving the tooth X2 away from the gum X1. Pull out X1 (Figure 2/STEP3).

Since the convex portion 13 is formed on the side surface of the second auxiliary base 12, when the second auxiliary base 12 is held with the thumb, index finger and/or middle finger, and a rotational force or a torsional force is applied to the central axis, salivation can be suppressed. etc. causing the finger and the second auxiliary base 12 to slide. When the tooth X2 rises from the gum X1 due to the torsion applied to the tooth X2, the tooth X2 is pulled out from the gum X1 while the second auxiliary base 12 is clamped with the fingers or by the jaws of the tooth extraction forceps. Tooth extraction.

(Second Embodiment)

(composition) A tooth extraction auxiliary tool 1 according to the second embodiment of the present invention shown in FIG. 3 includes a first auxiliary base 11, a second auxiliary base 12, and a connecting portion 10 that connects the first auxiliary base 11 and the second auxiliary base 12.

The first auxiliary base 11 is formed in a substantially triangular pyramid shape with a size that can be inserted into the recessed portion X0 that is provided to penetrate the crown of the tooth X2 in a state where the tooth root is embedded in the gum X1. A male thread portion 110 extending spirally along the side surface of the first auxiliary base 11 is formed on the convex curved side surface. The male thread portion 110 may be omitted. Instead of the male thread portion 110 , a concave-convex structure such as one or a plurality of protrusions and/or recessed portions protruding outward from the side of the first auxiliary base 11 may be formed on the side of the first auxiliary base 11 .

The second auxiliary base 12 is formed in a substantially cylindrical shape or a substantially disc shape with substantially the same diameter as the bottom of the first auxiliary base 11 . Similar to the first embodiment, the side surface of the second auxiliary base 12 may also be formed with convex strip portions, concave strip portions and/or convex portions for preventing slipping.

The connecting portion 10 is formed in a substantially cylindrical or rod shape with a smaller diameter than the first auxiliary base 11 . The connecting portion 10 is integrally or detachably fixed to one end of the first auxiliary base 11 so that its central axis coincides or substantially coincides with the central axis of the first auxiliary base 11 . The connecting portion 10 is integrally or detachably fixed to the second auxiliary base 12 at the other end so that its central axis coincides or substantially coincides with the central axis of the second auxiliary base 12 .

FIG. 4 shows a tooth extraction tool 2 constituting a tooth extraction tool set together with the tooth extraction auxiliary tool 1 shown in FIG. 3 . As shown in FIG. 4 , the tooth extraction tool 2 is provided with: a first base body 21 that is in the shape of an elongated flat plate when viewed from above; and a second base body 22 that is provided at one end of the first base body 21 in the longitudinal direction. The bottom is roughly oblong or roughly elliptical.

The hole 210 used as a string threading part etc. is formed in the other end part of the 1st base body 21. Although the second base 22 is formed into a convex curved surface like a spoon as a whole, the bottom 220 is formed to be flat or substantially flat (meaning that the curvature of the second base 22 is smaller than its surrounding parts). The front end portion of the second base body 22 is formed with an engaging notch portion 221 for dividing the front end portion into a bifurcated shape. An engaging hole 222 is formed at the rear end of the second base 22 by a substantially circular hole having a diameter larger than that of the second auxiliary base 12 of the tooth extraction auxiliary tool 1 and a width continuing behind the hole. It is composed of a substantially rectangular hole smaller in diameter than the second auxiliary base 12 . Although the engagement notch 221 reaches the edge of the second base 22 , the engagement hole 222 does not reach the edge of the second base 22 (continuous portion with the first base 21 ). The front end of the second base 22 may also be formed with an engaging hole that is the same as the engaging hole 222 in place of the engaging notch 221 .

(Instructions) The method of using the tooth extraction auxiliary tool 1 having the above structure and the tooth extraction tool set composed of the tooth extraction auxiliary tool 1 and the tooth extraction tool 2 will be explained. First, a cutting instrument is used to form a recess X0 (see FIG. 1 ) in the crown of the tooth X2 that is large enough for the first auxiliary base 11 to enter, and as shown in FIG. 5 , the first auxiliary base 11 is inserted into the recess. X0 (refer to Figure 2/STEP1).

Next, the melted hot-melt adhesive M is injected into the recessed portion X0 in which the first auxiliary base 11 is inserted using a hot-melt injection tool, and the hot-melt adhesive M is solidified. Thereby, as shown in FIG. 5 , the tooth extraction auxiliary tool 1 is fixed to the tooth X2 by the solidified hot-melt adhesive M (see FIG. 2/STEP2 ).

Furthermore, the operator holding the first base 21 of the tooth extraction tool 2 uses the bottom 220 to find the upper surface portion of the tooth row adjacent to the tooth X2 (in terms of the insertion direction of the second base 22 into the oral cavity). The engaging hole 222 of the second base 22 is hooked on the second auxiliary base 12 of the tooth extraction auxiliary tool 1 . Then, the tooth X2 is pulled out from the gum X1 together with the tooth extraction auxiliary tool 1 by moving the tooth extraction tool 2 away from the gum X1 (see FIG. 2/STEP3).

Through the flat or substantially flat bottom 220 of the substantially spoon-shaped second base 22, the operator can search not only the upper surface portion of the dentition but also the corners of the dentition. Since the operator can search for the corners of the teeth and the stepped parts of the dentition, the operator can respond to the patient's difficulty in opening the mouth and/or the shape of the mouth, as well as the operator's posture, the patient's tooth arrangement and/or occlusion, etc. condition.

The operator holding the first base 21 of the tooth extraction tool 2 can also use the bottom 220 of the second base 22 to search for teeth adjacent to the tooth X2 (in the opposite direction to the insertion direction of the second base 22 into the oral cavity). The upper surface portion of the row is hooked to the second auxiliary base 12 of the tooth extraction auxiliary tool 1 while the engagement notch 221 at the front end of the second base 22 is hooked. Furthermore, the first base 21 of the tooth extraction tool 2 may be pressed to extract the tooth X2 from the gum X1 together with the tooth extraction auxiliary tool 1 .

In this way, the influence of the teeth adjacent to the tooth X2 can be reduced, and the tooth can be extracted safely, stably and easily. Therefore, the burden on the patient and the operator in the tooth extraction operation can be reduced. Since the shape of the second base 22 is substantially elliptical when viewed from a plan view, the resistance is low when the second base 22 is introduced into the patient's oral cavity, so that this aspect can be secure.

The tooth extraction auxiliary tool 1 of this embodiment is the same as the first embodiment. The operator does not use the tooth extraction tool 2 similar to a spoon shape, but uses the fingertips to hold the second auxiliary base 12 while pulling out the tooth X2 from the gum X1. Yes. The tooth extraction tool 2 may be used in combination with the auxiliary tool 1 (see FIG. 1 ) of the first embodiment.

(Third Embodiment)

(composition) A tooth extraction auxiliary tool 1 according to the third embodiment of the present invention shown in FIG. 6 includes a first auxiliary base 11, a second auxiliary base 12, and a connecting portion 10 that connects the first auxiliary base 11 and the second auxiliary base 12.

The first auxiliary base 11 is formed in a substantially spherical shape with a size that can be inserted into the recessed portion X0 that is provided to penetrate the crown of the tooth X2 in a state where the tooth root is embedded in the gum X1.

The second auxiliary base 12 is formed in a substantially annular plate shape with a larger diameter than the first auxiliary base 11 . A female thread portion is formed on the inner surface of the second auxiliary base 12 . Similar to the first embodiment, convex strips, concave strips and/or convex portions for preventing slipping may also be formed on the inner surface of the second auxiliary base 12 .

The connecting portion 10 is formed in a substantially cylindrical or rod shape with a smaller diameter than the first auxiliary base 11 . A male thread portion 100 screwed to the female thread portion of the second auxiliary base 12 is formed on the side surface of the connecting portion 10 . The connecting portion 10 is integrally or detachably fixed to one end of the first auxiliary base 11 so that its central axis coincides or substantially coincides with the central axis of the first auxiliary base 11 . The connecting portion 10 is screwed to the second auxiliary base 12 so that its central axis coincides or substantially coincides with the central axis of the second auxiliary base 12 .

(Instructions) Next, a method of using the tooth extraction auxiliary tool 1 configured as described above will be described. First, as shown in FIG. 7 , a cutting instrument is used to form a recess X0 in the crown of the tooth X2 that is large enough for the first auxiliary base 11 to enter, and the first auxiliary base 11 is inserted into the recess X0 (refer to FIG. 2 /STEP1). Next, the second auxiliary base 12 is rotated to expand the distance between the first auxiliary base 11 and the second auxiliary base 12 . This is to prevent the second auxiliary base 12 from causing obstruction when the hot melt adhesive is injected into the recessed portion X0 of the tooth X2.

Next, as shown in FIG. 6 , a hot melt injection tool is used to inject the dissolved hot melt adhesive M into the recessed portion X0 in which the first auxiliary base 11 is inserted, and the hot melt adhesive M is solidified (see FIG. 2 / STEP2). Thereby, the tooth extraction auxiliary tool 1 is fixed to the tooth X2 by the solidified hot-melt adhesive M.

Next, the second auxiliary base 12 is rotated in the opposite direction to the previous one, so that the distance between the first auxiliary base 11 and the second auxiliary base 12 is reduced. Furthermore, the operator who holds the first base 21 of the tooth extraction tool 2 configured as shown in FIG. 4 uses the bottom 220 to find the point adjacent to the tooth X2 (in terms of the insertion direction of the second base 22 into the oral cavity). The upper surface portion of the tooth row is hooked to the second auxiliary base 12 of the tooth extraction auxiliary tool 1 by the engaging hole 222 of the second base 22 . Then, the tooth X2 is pulled out from the gum X1 together with the tooth extraction auxiliary tool 1 by moving the tooth extraction tool 2 away from the gum X1 (see FIG. 2/STEP3).

In this embodiment, the male thread portion 100 formed on the side surface of the substantially cylindrical connecting portion 10 and the male thread portion 100 formed on the inner surface of the substantially annular second auxiliary base 12 are screwed to the male thread portion 100 . The female thread portion constitutes an interval adjustment mechanism for adjusting the distance between the first auxiliary base 11 and the second auxiliary base 12 . In addition, for example, the distance adjustment mechanism may be configured to have a sliding type structure in which the connecting portion 10 is variable in length and can be fixed. [Industrial utilization possibility]

The tooth extraction auxiliary tool 1 of the present invention and the tooth extraction tool set composed of the tooth extraction auxiliary tool 1 and the tooth extraction tool 2 are secure, safe and less burdensome when extracting teeth for patients such as children and/or the elderly. The tooth extraction auxiliary tool 1 and the tooth extraction tool set of the present invention can also be used for tooth extraction of pets or livestock.

1: Tooth extraction auxiliary tools 2:Tooth extraction tools 10:Connection Department 11: 1st auxiliary base 12: 2nd auxiliary base 13: convex part 21: 1st base body 22: 2nd matrix 100: Male thread part (interval adjustment mechanism) 110:Male thread part 120: convex part 210:hole 220: bottom 221: Engagement notch part 222:Latching hole X0: concave part X1: Gums X2:Teeth M: Hot melt adhesive

[Fig. 1] is an explanatory diagram regarding the structure of a tooth extraction auxiliary tool as the first embodiment of the present invention. [Fig. 2] It is an explanatory diagram regarding the use method of the tooth extraction auxiliary tool as the first embodiment of the present invention. [Fig. 3] is an explanatory diagram regarding the structure of a tooth extraction auxiliary tool as a second embodiment of the present invention. [Fig. 4] is an explanatory diagram regarding the structure of a tooth extraction tool as one embodiment of the present invention. [Fig. 5] It is an explanatory diagram about the use form of the tooth extraction tool set as one embodiment of the present invention. [Fig. 6] is an explanatory diagram regarding the structure of a tooth extraction auxiliary tool as a third embodiment of the present invention.

1: Tooth extraction auxiliary tools

10:Connection Department

11: 1st auxiliary base

12: 2nd auxiliary base

120: convex part

X0: concave part

X1: Gums

X2:Teeth

M: Hot melt adhesive

Claims (5)

An auxiliary tool for tooth extraction, which is provided with: The first auxiliary base is inserted into the recess formed in the tooth; 2nd auxiliary base; The connecting portion connects the aforementioned first auxiliary base body and the aforementioned second auxiliary base body; and The distance adjusting mechanism is used to adjust the distance between the first auxiliary base and the second auxiliary base through the connecting portion. The tooth extraction auxiliary device as described in claim 1, wherein, The distance adjustment mechanism is constituted by a male thread portion formed in the connecting portion and a female thread portion formed in the second auxiliary base body and screwed into the male thread portion. A tooth extraction equipment set is composed of the following: The tooth extraction aid described in claim 1 or 2; and A tooth extraction tool is formed with an engaging portion that is guided to a gap between the second auxiliary base and the tooth and engaged in a state where the first auxiliary base is inserted into the recessed portion formed in the tooth. on the aforementioned second auxiliary substrate. The tooth extraction kit as described in claim 3, wherein, The aforementioned tooth extraction tool is provided with: a first base body extending in the length direction; and a second base body connected to one end of the first base body in the length direction and inserted into the patient's oral cavity. Among the engaging holes composed of the first hole and the second hole, at least one of them is formed in the second base body as the aforementioned engaging portion; the first hole is configured to divide the front end portion of the aforementioned second base body. The engagement notch and the second base allow the second auxiliary base to pass through; the second hole is configured to prevent the second auxiliary base from passing through and is continuous with the first hole. The tooth extraction kit as described in claim 4, wherein, In the tooth extraction tool, the second base system is formed in a convex curved surface, and the bottom of the second base is formed in a flat shape, or in a convex curved surface with a smaller curvature than the periphery of the second base.

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