JP2020099549A - Interdental grinding file and interdental grinding device with the same - Google Patents

Abstract

To provide an interdental grinding file that can be inserted in an interdental space simply and reliably, and can be moved by smaller force, and provide an interdental grinding device with the same.SOLUTION: An interdental grinding file 1 is provided for forming a space required in an interdental space. The interdental grinding file includes: a central slit part 6 provided with a ground surface 3 with grinding hard fine particles deposited on front and rear sides 2A, 2B of a base material 2 and non-ground surfaces 51-59 without rigid fine particles deposited thereon, and having the non-ground surface 51 formed in the lengthwise band penetrating in the width direction in substantially the center of the base material in the longitudinal direction as the non-ground surface; and a left slit part 7 and a right slit part 8 having the non-ground surfaces formed by one or multiple pieces in each of both sides (both right and left sides) of the central slit part 6.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a file (strips) for interdental grinding that inserts and moves between teeth to form a required space (gap) between adjacent teeth, and an interdental grinding device including the file. ..

2. Description of the Related Art Conventionally, in orthodontic treatment for correcting alignment of teeth, space making called IPR (Interproximal Enamel Reduction) is performed to form a space (gap) suitable for a purpose between two adjacent teeth. Conventionally, this space making is performed by inserting an elongated thin plate-like file (strips) between the teeth and moving it back and forth in small steps, as shown in Patent Document 1, for example.

Here, the file for interdental grinding is a strip-shaped sheet material made of a synthetic resin foil such as polyester or a metal foil such as stainless steel. Grain) is attached to the ground surface. In the conventional file for interdental grinding, the ground surface is formed on the entire front and back surfaces of the base material. Therefore, there is a problem that it is difficult to insert the file between the teeth. In particular, when space making is performed between a plurality of teeth, it is difficult to insert a file between the teeth, so that there is a problem that treatment efficiency is reduced. In addition, since the ground surfaces are formed on the entire front and back surfaces of the base material, there is a problem that a large resistance is exerted when a file inserted between the teeth is moved to polish the teeth, and a work load due to that is large. It was That is, immediately after inserting the file between the teeth, there is not enough space because the teeth on both sides have not been ground yet, and very large force is required to move the file in small steps. Furthermore, when the tooth gap is shaved with a file, tooth scraps are generated, but if a ground surface is formed on the entire front and back surfaces of the base material, the scraps will not be discharged smoothly from between the teeth, which also causes the scrap. There was a problem that the power required to move the robot would increase.

JP, 2016-16172, A

The present invention has been made in view of the above problems, and an object thereof is to be able to easily and surely insert between teeth and to move the file with a smaller force, so that the teeth can be moved between the teeth. An object of the present invention is to provide a file for interdental grinding capable of efficiently forming a required space in a short time, and an interdental grinding device including the file.

In order to achieve the above object, an interdental grinding file according to the present invention is an interdental grinding file (1) for forming a required space (δ) between teeth (T). The file (1) attaches the hard particles for grinding to the front and back surfaces (2A, 2B) of the base material (2) formed in the shape of a flat strip, and the grinding surface (3) to which the hard particles for grinding are attached. A non-ground surface (5 (51 to 59)) which is not formed is provided, and the non-ground surface is formed in a vertically elongated band shape that penetrates in the width direction at approximately the center in the longitudinal direction of the base material (2). It is characterized in that it comprises a central slit part (6) having a ground non-ground surface (51).

According to the file for interdental grinding according to the present invention, as a non-grinding surface to which hard fine particles for grinding are not attached, it is formed in a vertically long strip shape penetrating in the width direction at approximately the center in the longitudinal direction of the base material. By providing a central slit portion having a non-grinding surface so that the portion of the central slit portion is inserted between two adjacent teeth, a file is simply and surely inserted between the teeth to be ground. be able to. Therefore, a desired space can be efficiently formed between two teeth in a short time, and the work load at the time of dental treatment can be effectively reduced.

In addition, in this file for interdental grinding, in addition to the central slit portion (6) as the non-ground surface (5 (51 to 59)), the side of the central slit portion (6) in the longitudinal direction is further provided. A side slit portion (left slit portion or right slit portion) (7 or 8) having a non-ground surface (52 to 55, 56 to 59) formed with one or a plurality of portions (left side or right side) is provided. You can stay.

According to this configuration, since the side slit portion (left slit portion or right slit portion) is provided, the resistance at the time of grinding the tooth on the grinding surface of the file is reduced, The shavings that come out will be discharged smoothly without being pinched between the tooth and the file.

Further, in this file for grinding between teeth, a plurality of non-ground surfaces (52 to 55, 56 to 59) provided in the side slit portions (7 or 8) are arranged in the longitudinal direction of the base material (2). A curved linear shape in which the degree of curvature (curvature) gradually decreases from the center to the outside along the width dimension (W52) from the center to the outside along the longitudinal direction of the base material (2). ~W55, W56 to W59) may be gradually reduced.

According to this structure, the plurality of non-ground surfaces forming the side slits have a gradually decreasing degree of curvature (curvature) from the center to the outside, and their width dimensions gradually decrease. Then, the closer to the center (center slit part), the smaller the resistance when moving the file. Therefore, it is possible to effectively reduce the resistance when the file is started to move (the state where the gap between the teeth is still small). As a result, it is possible to make the force of moving the file uniform when grinding between teeth (uniformization from the start to the end).

Further, in this file for grinding between teeth, the polishing surface (3) between each of the plurality of non-grinding surfaces (52 to 55, 56 to 59) provided in the side slit portion (7 or 8) is The width dimension (L1 to L5) may be gradually increased from the center to the outside along the longitudinal direction of the base material (2).

According to this configuration, the width dimension of the polishing surface gradually increases from the center to the outside. Therefore, even with this configuration, the resistance when moving the file decreases as it approaches the center (center slit portion). Complete. Therefore, it is possible to effectively reduce the resistance when the file is started to move (the state where the gap between the teeth is still small). As a result, it is possible to make the force of moving the file uniform when grinding between teeth (uniformization from the start to the end).

The present invention also provides an interdental grinding device (100) including an interdental grinding file (1 to 1-4) having any one of the above-mentioned configurations, which comprises at least a vibration generator (106) and the vibration. A vibrator (107) that receives a drive signal from a generator (106) and vibrates, a handpiece (102) containing a holder (108) connected to the vibrator (107), and the holder (108). ), a grinding tip (110) removably attached to which the files (1 to 1-4) are held, and a power supply device (104) for supplying electric power to the vibration generator (106). It is characterized by being configured.

Even in an interdental grinding device of the type that applies vibration to a file with the above-described vibration generator, by providing the file of the present invention, the file can be simply and reliably inserted between the teeth to be ground, In addition, the file can be moved smoothly when grinding between teeth. Therefore, a desired space can be efficiently formed between two teeth in a short time, and the work load at the time of dental treatment can be effectively reduced.

According to the file for interdental grinding according to the present invention and the interdental grinding device provided with the file, the file can be simply and surely inserted between the teeth, and the file can be smoothly smoothed when the interdental is ground. Since it can be moved, a required space can be efficiently formed between adjacent teeth in a short time, and the physical burden on the patient and the therapist can be reduced.

It is a figure showing the file for interdental grinding concerning one embodiment of the present invention, (a) is a front view and (b) is an AA sectional view of (a). It is a figure which shows the other example of the file for interdental grinding. It is a figure which shows the other example of the file for interdental grinding. It is a figure which shows the other example of the file for interdental grinding. (A) is a partial front view showing a tooth row before space making, and (b) is a partial front view showing a tooth row after space making. It is the whole block diagram of the interdental grinding device concerning one embodiment of the present invention. It is the BB sectional view taken on the line of FIG.

Embodiments of the present invention will be described below with reference to the accompanying drawings.
[First embodiment: file for grinding between teeth]
1A and 1B are diagrams showing a file for interdental grinding according to an embodiment of the present invention, in which FIG. 1A is a front view and FIG. 1B is a sectional view taken along line AA of FIG. The file 1 shown in FIG. 1 is a file for interdental grinding for forming a space (gap) required for orthodontics between the teeth by cutting a space between two adjacent teeth of a patient in dental treatment. Then, hard fine particles (abrasive grains) such as alumina and diamond are formed on the front and back surfaces 2A and 2B of the base material 2 which is a sheet material (thin plate material) made of a synthetic resin foil such as polyester or a metal foil such as stainless steel. The adhered grinding surface 3 is formed. The base material 2 is formed in an elongated strip shape with its outer diameter. On the front and back surfaces 2A and 2B of the base material 2, there are a portion of the ground surface 3 to which hard fine particles (abrasive particles) are attached and a non-ground surface 5 (51 to 59) to which hard fine particles (abrasive particles) are not attached. Parts and are provided. In addition, in FIG. 1A, only one of the front and back surfaces 2A and 2B (front surface 2A) of the base material 2 in the file 1 is shown, but the file 1 has the same shape in the front surface 2A and the back surface 2B (control). Is formed in. Therefore, in the following description, only the front surface 2A will be described, but the same applies to the back surface 2B.

On the surface 2A of the file 1 (base material 2) shown in FIG. 1, there is a central slit portion 6 which is a non-abrasive surface formed in a vertically long strip shape and which penetrates in the width direction at approximately the center in the longitudinal direction, and A left slit portion (side slit portion) 7 and a right slit portion (side slit portion) 8 each having a non-ground surface formed with a plurality of slits on both sides (left and right sides) of the central slit portion 6 are provided. There is. A portion of the surface 2A of the file 1 (base material 2) excluding the central slit portion 6 and the left and right slit portions 7 and 8 is a grinding surface 3 to which hard fine particles (abrasive grains) are attached.

The non-grinding surface 51 forming the central slit portion 6 has a curved line shape whose left and right edges are curved, and the upper and lower ends (both sides in the width direction with respect to the longitudinal direction of the base material 2) are constricted in the vertical center. ) Has an expanded constricted shape. Further, the left slit portion 7 and the right slit portion 8 have shapes symmetrical to each other in the longitudinal direction of the file 1, and a plurality of curved linear slit-like non-ground surfaces 52 to 55 penetrating in the width direction of the file 1. And non-ground surfaces 56 to 59, respectively. The curvature degree (curvature) of the plurality of non-grinding surfaces 52 to 55, 56 to 59 gradually decreases from the center to the outside (left and right), and the width dimensions W52 to W55, W56 to W59 thereof gradually increase. It is getting smaller. (W52>W53>W54>W55, W56>W57>W58>W59) Further, the non-grinding surfaces 52 to 55 and 56 to 59 which form the left slit portion 7 and the right slit portion 8 are formed. The widths (widths in the longitudinal direction of the file 1) L1 to L5 of the grinding surface 3 gradually increase from the center (the portion of the central slit portion 6) in the longitudinal direction of the file 1 to the left and right (outside). (L1<L2<L3<L4<L5)

The file 1 shown in FIG. 1 is used for carrying out grinding between teeth by holding it with a hand (finger), inserting it between the teeth and moving it. That is, holding the both sides of the file 1 in the longitudinal direction by hand and pulling lightly to the left and right, the middle portion is pulled tight. In that state, the file 1 is set between the teeth by inserting the central slit portion 6 between the teeth to be ground. At this time, since the central slit portion 6 is a non-grinding surface to which hard fine particles (abrasive particles) are not attached, the file 1 can be smoothly inserted without being caught between the teeth.

Then, by moving the file 1 to the left or right in the longitudinal direction, the space between the teeth moves from the central slit portion 6 of the file 1 toward the left side or the right side in the longitudinal direction. As a result, the teeth on both sides are ground by the grinding surface 3 formed on the surface 2A of the file 1 (base material 2). At this time, since the left slit portion 7 or the right slit portion 8 is provided, the resistance at the time of grinding the tooth on the grinding surface 3 is reduced, and at the same time, the scraps generated from the ground tooth are scraped off with the tooth. It will be discharged smoothly without being sandwiched between 1. Furthermore, the plurality of non-grinding surfaces 52 to 55, 56 to 59 forming the left slit portion 7 or the right slit portion 8 have a gradually decreasing degree of curvature (curvature) from the center to the outside (left and right), and Since the width dimensions W52 to W55 and W56 to W59 are gradually reduced, the resistance when the file 1 is moved becomes smaller as the width is closer to the center (center slit portion 6). Therefore, it is possible to effectively reduce the resistance when the file 1 is started to move (the gap between the teeth is still small). As a result, it is possible to make the force of moving the file 1 uniform when grinding the teeth (uniformization from the start to the end).

FIG. 2 is a front view showing another example of a file for grinding between teeth. The file 1-2 shown in the figure is a straight central slit portion 6 penetrating in the width direction at the center of the base material 2 in the longitudinal direction, and left and right sides of the central slit portion 6 (both sides in the longitudinal direction of the file 1). And a left slit portion 7 and a right slit portion 8 on which non-ground surfaces 62 and 63 are formed respectively. The non-grinding surface 62 of the left slit portion 7 and the non-grinding surface 63 of the right slit portion 8 are also straight lines penetrating in the width direction of the file 1-2 (vertical direction in the drawing), and their width dimensions (the left and right direction in the drawing). W62, W63 are smaller than the width W61 of the non-ground surface 61 of the central slit portion 6 (W62<W61, W63<W61). In this case also, in the surface 2A of the file 1-2 (base material 2), the portion other than the central slit portion 6 and the left and right slit portions 7 and 8 is the grinding surface 3 to which hard fine particles are attached.

FIG. 3 is a front view showing still another example of a file for grinding between teeth. The file 1-3 shown in the figure includes only a central slit portion 6 formed of a straight strip-shaped non-ground surface 61 penetrating in the width direction at the center of the strip-shaped substrate 2 in the longitudinal direction.

FIG. 4 is a front view showing still another example of a file for grinding between teeth. The file 1-4 shown in the figure includes only a central slit portion 6 formed of a straight strip-shaped non-ground surface 61 penetrating in the width direction at the center of the strip-shaped substrate 2 in the longitudinal direction. Then, in the non-ground surface 61 of the central slit portion 6, the width dimension of one end portion (the one end portion in the width direction of the file 1-4 (the lower end in the drawing)) is larger than the width dimensions of the other portions. The widened portion 61a is formed.

When the non-ground surface 61 of the central slit portion 6 is inserted between the teeth to be ground, the files 1-4 shown in FIG. To be inserted into. As a result, the width of the insertion portion of the non-grinding surface 61 is wide, which makes it easier to insert the files 1-4 between the teeth.

FIG. 5A is a partial front view showing a tooth row before space making, and FIG. 5B is a partial front view showing a tooth row after space making. By performing the grinding of the inter-tooth T using the file 1 (1-2 to 1-4) having the above-described configuration, the teeth T which are arranged in order in contact with each other as shown in FIG. Between them, as shown in FIG. 5B, a space (gap) δ having a desired size is efficiently formed in a short time.

[Second Embodiment: Interdental Grinding Device]
6 is an overall configuration diagram of an interdental grinding device according to an embodiment of the present invention, and FIG. 7 is a sectional view taken along the line AA of FIG. The illustrated interdental grinding device 100 includes a handpiece 102, a grinding tip 110 detachably attached to the tip of the handpiece 102, and a power supply device 104 for supplying electric power to the handpiece 102. There is.

The handpiece 102 is composed of a substantially cylindrical grip portion 102A and a substantially cylindrical tip portion 102B that is bent at a substantially right angle from the tip of the grip portion 102A, and as shown in FIG. 6, the grip portion 102A. A vibration generator 106 is housed inside. Further, as shown in FIG. 7, a vibrator 107 that receives a drive signal from the vibration generator 106 and vibrates, and a holder 108 connected to the vibrator 107 are housed inside the tip portion 102B. There is. The vibration generated by the vibration generator 106 can be various frequencies (frequency) such as sonic vibration and ultrasonic vibration.

Here, the vibration generator 106 is composed of, for example, a transistor (not shown), a capacitor, a choke coil, etc. mounted on a circuit board (not shown). The vibrator 107 is composed of, for example, a piezoelectric element or a magnetostrictive element.

Further, as shown in FIG. 7, the grinding tip 110 includes a support portion (handle) 111 that is bent in a U shape, and a file 1 (1-2 as a grinding tool whose both ends are supported by the support portion 111). ~ 1-4). Here, the file 1 (1-2 to 1-4) may have the configuration shown in any of FIGS. 1 to 4, and the surface (front and back) 2A of the file 1 (1-2 to 1-4). , 2B (pattern shapes of the ground surface 3 and the non-ground surface 5) may be as shown in FIGS.

The grinding tip 110 holding the file 1 (1-2 to 1-4) configured as described above is detachably attached to the holder 108 (see FIG. 7) built in the hand bead 102 for use.

The power supply device 104 shown in FIG. 6 converts, for example, electric power from a commercial power supply (AC100, 50/60 Hz) into a safe voltage of, for example, DC 12V, rectifies the same, and causes the power cord 109 to generate vibration in the handpiece 102. It fulfills the function of supplying to the container 106. The power supply device 104 is provided with a power supply switch 104a and a pedal switch 104b. When the pedal switch 104b is stepped on with the power switch 104a turned on (ON), the power supply device 104 moves to the inside of the handpiece 102. Power is supplied to the vibration generator 106. Then, a drive signal is transmitted from the vibration generator 106 to the vibrator 107, and the vibrator 107 vibrates. The vibration may be sonic vibration, ultrasonic vibration, or the like.

The application of the present invention is not limited to the embodiments described above, and various modifications can be made within the scope of the technical idea described in the claims and the specification and drawings. For example, in the file 1 shown in the above embodiment, in addition to the central slit portion 6 provided substantially at the center in the longitudinal direction of the base material 2, both side portions of the central slit portion 6 in the longitudinal direction of the base material 2 are used as side slit portions. Although the case where the left slit portion 7 and the right slit portion 8 provided on each (right and left sides) are provided is shown, in addition to this, only one of the left slit portion 7 and the right slit portion 8 is provided. It is also possible. Further, although not shown in the figure, in place of the central slit portion 6, a non-grinding surface formed in a vertically long strip shape penetrating in the width direction is provided at an end portion (left end or right end) in the longitudinal direction of the file 1, You may comprise so that the part of a grinding surface may be inserted between teeth.

1 (1-2 to 1-4) File 2 Base material 3 Grinding surface 5 (51 to 59) Non-grinding surface 6 Central slit portion 7 Left slit portion (side slit portion)
8 Right slit part (side slit part)
100 Interdental Grinding Machine 102 Handpiece 102A Gripping Part 102B Tip Part 110 Grinding Tip 111 Support Part (Handle)
104 power supply device 104a power switch 104b pedal switch 106 vibration generator 107 oscillator 108 holder 109 power cord T tooth (tooth)
δ space (gap)

Claims (5)

A file for interdental grinding to form a required space between teeth,
The file is provided on the front and back surfaces of the base material formed in the shape of a flat strip, a grinding surface to which hard particles for grinding are attached, and a non-grinding surface to which the hard particles are not attached,
A file for interdental grinding, comprising a central slit portion having, as the non-grinding surface, a non-grinding surface that is formed in a vertically long strip shape and penetrates in the width direction at approximately the center in the longitudinal direction of the base material. The side slit part which has a non-ground surface by which one or more were formed in the side part of the said center slit part in a longitudinal direction as said non-grinding surface, It further comprises. File for interdental grinding. The plurality of non-ground surfaces provided in the side slit portion are curved linear shapes whose curvature degree (curvature) gradually decreases from the center to the outside along the longitudinal direction of the base material, and the base. The file for interdental grinding according to claim 2, characterized in that the width dimension thereof gradually decreases from the center to the outside along the longitudinal direction of the material. The polishing surface between each of the plurality of non-ground surfaces provided in the side slit portion is characterized in that the width dimension thereof gradually increases from the center to the outside along the longitudinal direction of the base material. The file for interdental grinding according to claim 2 or 3. An interdental grinding device comprising the file for interdental grinding according to any one of claims 1 to 4,
At least a vibration generator, a vibrator that vibrates by receiving a drive signal from the vibration generator, and a handpiece including a holder connected to the vibrator,
A grinding tip detachably attached to the holder and holding the file;
A power supply device for supplying power to the vibration generator,
An interdental grinding device comprising: