Maintenance aid for tartar removal instruments

Abstract

To provide a maintenance aid for a tartar removal tool, which enables even a beginner to easily sharpen the tartar removal tool. [Solution] The maintenance aid 10 for tartar removal instruments is a maintenance aid 10 for tartar removal instruments that has a blade 4 and a magnetic round rod-shaped first shank 6 connected to the blade 4 and is used when sharpening a tartar removal instrument 2 for removing tartar using a grindstone 8, and is characterized by having a magnet part 12 that can be magnetically attached to the first shank 6, and a main body part 14 that extends from the magnet part 12 so that the angle it forms with the first shank 6 is a predetermined angle.

Description

[Technical Field]

[0001] The present invention relates to a maintenance aid for a dental scaling tool. [Background technology]

[0002] Conventionally, the blade of a curette may become dull due to wear caused by continuous use of the curette to remove tartar, so it is recommended that users sharpen the curette a little at a time using a whetstone after each use.

[0003] As a technology related to the present invention, for example, Patent Document 1 discloses a grinding stone for plaque removal curettes, which is characterized by having a grinding surface with a curved surface whose curvature gradually increases from the top surface to the lower side surface.

[0004] Patent Document 2 also discloses an angle setting tool that is used to position the blade of a hand scaler at a predetermined angle when sharpening the blade, and is placed on a grinding stone when used, and is characterized by having at least one inclined surface that is inclined at a predetermined angle relative to the bottom surface of the tool. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Japanese Patent Application Publication No. 6-237942 [Patent Document 2] International Publication No. 2003 / 072303 Summary of the Invention [Problem to be solved by the invention]

[0006] When sharpening, for example, if the curette is a Gracey curette, the inner surface of the blade is inclined at 70° to the first shank, and when the grinding stone is placed against the edge of the blade, the angle between the first shank and the contact surface of the grinding stone must be maintained at 40°. This process requires skill, so it is desirable for even beginners to be able to sharpen easily.

[0007] An object of the present invention is to provide a maintenance aid for a tartar removal tool that enables even a beginner to easily sharpen a tartar removal tool. [Means for solving the problem]

[0008] The maintenance aid for a tartar removal instrument according to the present invention is a maintenance aid for a tartar removal instrument that has a blade and a first shank connected to the blade and having magnetic properties and is used when sharpening, using a grindstone, a tartar removal instrument for removing tartar, The tartar removal tool a magnet portion that can be magnetically attached to the first shank; a mounting portion provided with the magnet portion and having a recess for gripping the first shank; and an extension portion extending from the mounting portion and formed at a predetermined angle with respect to the mounting portion; The present invention is characterized by comprising:

[0009] Furthermore, in the maintenance aid for a tartar removal instrument according to the present invention, it is preferable that the main body portion comprises an attachment portion in which the magnet portion is provided and which has a recess for grasping the first shank, and an extension portion extending from the attachment portion so as to form a predetermined angle with the first shank.

[0010] In the maintenance aid for a tartar removal instrument according to the present invention, the mounting portion preferably has a position adjustment portion for adjusting the mounting position of the main body portion so that it is at an accurate position.

[0011] In the maintenance aid for a tartar removal instrument according to the present invention, the predetermined angle is preferably set in consideration of a parallax based on an angle of the first shank relative to the blade.

[0012] In addition, in the maintenance aid for a tartar removal instrument according to the present invention, before a straight portion provided at a tip of the extension portion, extending in a direction perpendicular to the extension portion to form a T-shape; The tartar removal tool It is preferable that the blade further comprises another magnet portion that can be magnetically attached to the flat inner surface of the blade. [Effects of the Invention]

[0013] According to the present invention, even a beginner can easily sharpen a tartar removal tool. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a view showing a maintenance auxiliary for a tartar removal tool according to a first embodiment of the present invention. FIG. [Figure 2] 1 is a diagram showing a state in which sharpening is performed using the maintenance auxiliary device for a tartar removal tool of the first embodiment according to the present invention. FIG. [Figure 3] FIG. 2 is a diagram showing a three-dimensional representation of the relationship between a first shank and a blade using the maintenance aid for a tartar removal instrument of the first embodiment according to the present invention. [Figure 4] FIG. 10 is a view showing a maintenance aid for a tartar removal tool according to a second embodiment of the present invention. [Figure 5] FIG. 10 is a diagram showing a state in which sharpening is performed using a maintenance auxiliary tool for a tartar removal tool according to a second embodiment of the present invention. [Figure 6] FIG. 10 is a diagram showing a state in which a maintenance aid for a tartar removal tool according to a second embodiment of the present invention is magnetically attached to the flat inner surface of a blade. [Figure 7] FIG. 1 is a diagram illustrating sharpening using a grindstone according to a conventional technique. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following, similar elements in all drawings will be designated by the same reference numerals, and duplicate explanations will be omitted. Furthermore, in the description below, previously described reference numerals will be used as necessary.

[0016] Fig. 1 is a diagram showing a maintenance aid 10 for a tartar removal instrument according to a first embodiment of the present invention. Fig. 2 is a diagram showing a state in which sharpening is performed using the maintenance aid 10 for a tartar removal instrument according to the first embodiment of the present invention. Fig. 3 is a diagram showing a three-dimensional representation of the relationship between the first shank 6 and the blade 4 in the maintenance aid 10 for a tartar removal instrument according to the first embodiment of the present invention.

[0017] FIG. 1(a) is a front view of a maintenance aid 10 for a tartar removal instrument according to a first embodiment of the present invention, FIG. 1(b) is a rear view of the maintenance aid 10 for a tartar removal instrument, and FIG. 1(c) is a bottom view of the maintenance aid 10 for a tartar removal instrument as viewed from the direction of arrow A in FIG. 1(a).

[0018] The maintenance aid 10 for a tartar removal instrument is an instrument used when sharpening, using a grindstone 8, a tartar removal instrument 2 for removing tartar, which has a magnetic blade 4 and a first shank 6 connected to the blade 4. The maintenance aid 10 for a tartar removal instrument has a magnet portion 12 and a main body portion 14.

[0019] The tartar removal instrument 2 is a sickle scaler, a universal curette, or a Gracey curette. The tartar removal instrument 2 is a dental instrument used to remove tartar from tooth roots and periodontal pockets. The tartar removal instrument 2 includes a handle (gripping portion), a first shank 6, and a blade 4.

[0020] The sickle scaler blade 4 has two cutting edges that meet at a sharp point. The inner surface of the blade 4 is at a 90° angle to the first shank 6.

[0021] The blade 4 of a universal curette has two parallel cutting edges that meet at a rounded toe. The cutting edge of a universal curette is formed by the junction of the inner and lateral surfaces. The inner surface of the blade is at a 90° angle to the first shank 6.

[0022] Unlike the Sickle Scaler and Universal Curette, the Gracey Curette has an inner surface of the blade 4 that is inclined at 70° to the first shank 6, with a sharp cutting edge only on the inclined lower side, as shown in Fig. 7. Here, the tartar removal instrument 2 will be described as a Gracey Curette, but it can also be applied to the Sickle Scaler and Universal Curette.

[0023] Sharpening stones 8 are made of Arkansas stone, ceramic stone, India stone, etc. Sharpening stones 8 come in various shapes, including conical or conical, which are used to finish edges and remove burrs after sharpening, rectangular flat stones of various sizes, and rectangular (teardrop-shaped) wedge stones with rounded corners.

[0024] Arkansas stone is a fine to medium grit natural stone, and the use of sharpening oil is recommended. Sharpening oil helps to loosen metal particles that are produced when sharpening the blade, preventing them from clogging the sharpening stone. The shavings that accumulate in the oil are called "sludge."

[0025] Ceramic stones are artificial stones with fine, medium and coarse grains. The fine grain ceramic stones are suitable for everyday sharpening and can be used both wet and dry.

[0026] These are artificial stones made from fine, medium and coarse grain aluminum oxide crystals, and although the use of sharpening oil is recommended, they can also be used with water or dry.

[0027] To sharpen, you will need protective glasses to cover your eyes, tight-fitting gloves, cotton swabs to apply lubricant and water, gauze to remove sludge and metal shavings from the surface of the sharpening stone and the blade, a loupe or magnifying glass to magnify the blade, a hard acrylic plastic test stick to test the sharpness of the cutting edge, and a clock diagram to verify the correct positioning of the instrument, sharpening stone, and test stick.

[0028] The magnet portion 12 is a magnet that can be magnetically attached to the first shank 6 of the tartar removal tool 2. The magnet portion 12 can be made of a neodymium magnet, a ferrite magnet, an alnico magnet, a samarium-cobalt magnet, or the like.

[0029] Neodymium magnets are primarily composed of neodymium, iron, and boron, and have extremely strong magnetic force, making them the most powerful of modern permanent magnets. Ferrite magnets are made from a mixture of iron oxide and other metal oxides, and are low cost and highly durable. Alnico magnets are alloys of aluminum, nickel, and cobalt, and are highly resistant to high temperatures, maintaining stable magnetic force for a long period of time. Samarium-cobalt magnets are alloys of samarium and cobalt, and are resistant to high temperatures and have extremely stable magnetic force.

[0030] The main body 14 is a rod-shaped member that extends from the magnet portion 12 so as to form a predetermined angle (40°) with the first shank 6. The main body 14 includes an attachment portion 14a having a round bar-shaped recess that grips the first shank 6, and an extension portion 14b that extends from the attachment portion 14a so as to form a predetermined angle with the first shank 6.

[0031] As shown in Fig. 1(a), the mounting portion 14a has a notch extending vertically to allow the first shank 6 to pass through in the vertical direction, and is depicted as a recess in the bottom view shown in Fig. 1(c). Also, as shown in Fig. 1(a), a magnet portion 12 is provided in the center of the recess (notch).

[0032] Then, when the first shank 6 is passed through the notch shown in Figure 1(a), the first shank 6 is magnetically attracted to the magnet portion 12, and the maintenance aid 10 for tartar removal instruments is attached as shown in Figure 2.

[0033] 2, the position of mounting portion 14a is adjusted so that the relationship between mounting portion 14a and blade 4 when viewed from the bottom side of mounting portion 14a is such that the longitudinal direction of blade 4 is parallel to the pair of extensions of the recess (viewed from the bottom side). In this way, the recess of mounting portion 14a serves as a position adjustment portion for adjusting the mounting position of main body 14 to an accurate position.

[0034] The predetermined angle is set in consideration of the parallax based on the angle of the first shank 6 relative to the blade 4. Here, if the first shank 6 is inclined by, for example, 20° relative to the blade 4, and is tilted by a 20° rotational movement around the first shank 6, the theoretical parallax will be +1.8°, as will be described later. Therefore, in order to correct this parallax, it is preferable to set the angle (predetermined angle) between the extension 14b of the main body and the first shank to 40°-1.8°=38.2°.

[0035] Here, the relationship between the first shank 6 and the blade 4 will be explained using Figure 3. As shown in Figure 3, the position of point P corresponds to the position of the first shank 6, and point P' corresponds to the blade 4. The angle that point P makes with the Y axis is α, and as shown in Figure 3(a), the coordinates of point P can be expressed as (sinα, cosα).

[0036] Point P' is obtained by rotating point P by β around the X axis, and as shown in Figure 3(b), the (y, z) coordinates of point P' are (cosα·cosβ, cosα·sinβ). Note that Figure 3(b) shows a view from the X axis direction, and the three-dimensional coordinates of P' on the XYZ axes are (sinα, cosα·cosβ, cosα·sinβ).

[0037] Furthermore, as shown in Figure 3(c), when points P and P' are viewed from the Z-axis direction, the (x, y, z) coordinates of point P are (sinα, cosα, 0) and point P' are (sinα, cosα·cosβ, cosα·sinβ), and tanθ = sinα / (cosα·cosβ) = tanα×1 / cosβ (Equation 1).

[0038] Here, the angle between the mounting portion 14a of the main body 14 and the first shank 6 is required to be 40°, so α = 40°. Furthermore, because the blade 4 and the first shank 6 are inclined at an angle of 20° as described above, β = 20°. Substituting these values ​​into Equation 1, θ = 41.8° is obtained, and the parallax based on the angle of the first shank 6 relative to the blade 4 is 1.8°. Therefore, it is preferable to set the angle between the mounting portion 14a of the main body 14 and the first shank 6 taking this into consideration.

[0039] Next, the effects of the maintenance aid 10 for a tartar removal instrument having the above-described configuration will be described. First, conventional sharpening will be described. The tartar removal instrument 2 will be described as a Gracey curette for right-handed use.

[0040] First, hold the tartar removal tool 2 (curette) vertically in your left hand. Point the blade 4 to be sharpened downwards, with the tip facing towards you. Support the upper shank with your thumb, and rest your elbow on the table so that your hand is facing forward.

[0041] Next, tilt the first shank 6 of the culet from 12 o'clock to 11 o'clock by about 3 minutes. Then, hold the sharpening stone 8 in your right hand and place it on the right side of the blade 4. First, set the sharpening stone 8 to 12 o'clock, then tilt it by about 3 minutes toward 1 o'clock. In other words, as shown in Figure 7, the angle between the first shank 6 of the culet and the sharpening stone 8 needs to be adjusted to 40°.

[0042] Then, begin sharpening with a smooth up-and-down motion, starting at the heel of the blade 4, then moving to the middle, and finally to the tip. Sludge will accumulate on the entire inner surface of the blade 4, and gauze can be used to remove the sludge from the blade 4 and the grindstone 8.

[0043] As described above, when sharpening a Gracey curette, the angle between the first shank 6 and the grindstone 8 needs to be set to 40°, but sharpening while setting this angle requires skill, so it is desirable that even beginners can easily set it to 40° and sharpen. In response to this problem, the maintenance aid 10 for tartar removal instruments according to the embodiment of the present invention exhibits a remarkable effect.

[0044] When sharpening the tartar removal tool 2, which is a Gracey curette, the first shank 6 is first passed through the recess (cutout) of the attachment portion 14a shown in Figure 2, and the first shank 6 is magnetically attached to the magnet portion 12, thereby attaching the maintenance aid 10 for the tartar removal tool.

[0045] 2, the position of the mounting portion 14a is adjusted so that the relationship between the mounting portion 14a and the blade 4 when viewed from the bottom side of the mounting portion 14a is such that the longitudinal direction of the blade 4 is parallel to the pair of extensions of the recess (viewed from the bottom). As a result, the angle between the rod-shaped extensions 14b extending obliquely upward from the ceiling surface of the magnet portion 12 and the first shank 6 is 40°.

[0046] By simply positioning the grindstone 8 so that it is parallel to the rod-shaped extension 14b, the angle between the grindstone 8 and the first shank 6 can be set to 40°. Once the 40° angle has been confirmed, the maintenance aid 10 for tartar removal instruments can be removed and sharpened, and if the angle becomes unclear, it can be reattached and checked. This has the remarkable effect of allowing even beginners to easily sharpen while maintaining the 40° angle.

[0047] Fig. 4 is a diagram showing a maintenance aid 20 for a tartar removal instrument according to a second embodiment of the present invention. Fig. 5 is a diagram showing a state in which sharpening is performed using the maintenance aid 20 for a tartar removal instrument according to the second embodiment of the present invention. Fig. 6 is a diagram showing a state in which the maintenance aid 20 for a tartar removal instrument according to the second embodiment of the present invention is magnetically attached to the flat inner surface of the blade 4.

[0048] Figure 4(a) is a front view of a maintenance aid 20 for a tartar removal instrument of a second embodiment according to the present invention, Figure 4(b) is a rear view of the maintenance aid 20 for a tartar removal instrument, Figure 4(c) is a side view of the maintenance aid 20 for a tartar removal instrument, and Figure 4(d) is a perspective view of the maintenance aid 20 for a tartar removal instrument.

[0049] The maintenance aid 20 for a tartar removal instrument comprises a first magnet part 22, a main body part 24, and a second magnet part 26. The maintenance aid 20 for a tartar removal instrument has the same basic configuration as the maintenance aid 10 for a tartar removal instrument, so the following description will focus on the differences and omit other descriptions.

[0050] The main body 24 includes an attachment portion 24a having a slit-shaped recess for fitting and holding the first shank 6, and an extension portion 24b extending obliquely upward from the attachment portion 24a at a predetermined angle (for example, 40°). Furthermore, a straight portion 24c is formed at the tip of the extension portion 24b so as to be perpendicular to the longitudinal direction of the extension portion 24b, giving the tartar removal instrument maintenance aid 20 a T-shaped appearance.

[0051] The first magnet portion 22 is attached to a recess in the attachment portion 24a of the main body portion 24, and plays the same role as the magnet portion 12. The second magnet portion 26 is provided in the center of the linear portion 24c, and is a magnet that can be magnetically attached to the blade 4 of the tartar removal tool 2. The first magnet portion 22 and the second magnet portion 26 can be made of a neodymium magnet, a ferrite magnet, an alnico magnet, a samarium-cobalt magnet, or the like.

[0052] As described above, the first magnet portion 22 is provided on the attachment portion 24a, and can be magnetically attached to the first shank 6, thereby enabling the entire maintenance aid 20 for tartar removal instruments to be stably attached. Furthermore, the second magnet portion 26 is provided in the center of the linear portion 24c, as described above, and is configured to be magnetically attached to the flat inner surface of the blade 4.

[0053] In the maintenance aid 20 for a tartar removal instrument, the attachment portion 24a is provided with a recess with a slit, so that the maintenance aid 20 for a tartar removal instrument is fitted and held on the first shank 6. The extension portion 24b is formed at an inclination angle of 40°.

[0054] As shown in Figure 5, when the maintenance aid 20 for tartar removal instruments is attached, the user can visually align the extension 24 and the grinding wheel 8 so that they are parallel, allowing the angle between the grinding wheel 8 and the first shank 6 to be set accurately to 40°. This allows even a beginner to perform accurate sharpening work without angle error.

[0055] Furthermore, as shown in Figure 6, the second magnet portion 26 provided on the straight portion 24c of the maintenance aid 20 for tartar removal instruments is magnetically attached to the flat inner surface of the blade 4, thereby holding the T-shaped horizontal bar portion of the maintenance aid 20 for tartar removal instruments in an inclined position. This allows the user to immediately visually determine the inclination direction of the blade 4 from the inclination of the T-shaped portion. This is particularly advantageous for instruments with a blade on only one side, such as a Gracey curette, in that the side on which the blade is located (the direction of inclination) can be clearly identified. [Explanation of symbols]

[0056] 2 Tartar removal tool, 4 Blade, 6 First shank, 8 Grindstone, 10 Maintenance aid for tartar removal tool, 12 Magnet portion, 14 Main body portion, 14a Mounting portion, 14b Extension portion, 14c Second extension portion, 20 Maintenance aid for tartar removal tool, 22 First magnet portion, 24 Main body portion, 24a Mounting portion, 24b Extension portion, 24c Single-character portion, 26 Second magnet portion.

Claims

1. A maintenance aid for a tartar removal tool, which is used when sharpening a tartar removal tool for removing tartar using a grindstone, the tartar removal tool having a blade and a magnetic first shank connected to the blade, a magnet portion that can be magnetically attached to the first shank of the tartar removal tool; a mounting portion provided with the magnet portion and having a recess for gripping the first shank; an extension portion extending from the mounting portion and formed at a predetermined angle with respect to the mounting portion; A maintenance aid for a tartar removal instrument, comprising:

2. 2. The maintenance aid for a tartar removal tool according to claim 1, a straight portion provided at the tip of the extension portion and extending in a direction perpendicular to the extension portion to form a T-shape; Another magnet portion that can be magnetically attached to the flat inner surface of the blade of the dental tartar removal tool; A maintenance aid for a tartar removal instrument, further comprising:

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