JP7287640B2 - File for inter-tooth grinding and inter-tooth grinding device provided with the same - Google Patents

Description

TECHNICAL FIELD The present invention relates to an interdental grinding file (strips) that forms a required space (gap) between adjacent teeth by being inserted between teeth and moved, and an interdental grinding apparatus equipped with the said file. .

Conventionally, in orthodontic treatment to correct the alignment of teeth, space making called IPR (Interproximal Enamel Reduction) is performed to form a space (gap) that meets the purpose between two adjacent teeth. This space making is conventionally performed by inserting a thin 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 band-shaped sheet material made of synthetic resin foil such as polyester or metal foil such as stainless steel. It is formed with a ground surface on which grains are adhered. In the conventional file for inter-tooth grinding, grinding surfaces were 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 each tooth, resulting in a problem of reduced treatment efficiency. In addition, since the ground surface is formed on the entire front and back surfaces of the base material, there is a problem that the resistance when polishing the teeth by moving the file inserted between the teeth is large, and the work load due to this is large. rice field. That is, immediately after inserting the file between the teeth, the teeth on both sides have not yet been ground, so there is not enough space, and a very large force is required to move the file in small increments. Furthermore, when the space between teeth is sanded with a file, shavings from the teeth are produced. There is a problem that the force required to move the is increased.

JP 2016-16172 A

The present invention has been made in view of the above problems, and an object of the present invention is to enable the file to be easily and reliably inserted between the teeth and to move the file between the teeth with less force. To provide an inter-tooth grinding file capable of forming a required space efficiently in a short time and an inter-tooth grinding device having the same.

In order to achieve the above object, an inter-tooth grinding file according to the present invention is an inter-tooth grinding file (1) for forming a required space (δ) between teeth (T), The file (1) has a grinding surface (3) on which hard fine particles for grinding are attached to front and rear surfaces (2A, 2B) of a substrate (2) formed in a plate-like band shape, and the hard fine particles are attached. A non-ground surface (5 (51 to 59)) that is not ground is provided, and the non-ground surface is formed in a vertically elongated belt shape penetrating in the width direction at substantially the center in the longitudinal direction of the base material (2). characterized by a central slit (6) with a smoothed, non-ground surface (51).

According to the file for inter-tooth grinding according to the present invention, the non-grinding surface to which the hard fine particles for grinding are not attached is formed in a vertically elongated belt shape penetrating in the width direction at substantially the center in the longitudinal direction of the base material. By providing a central slit portion having a non-ground surface and inserting this central slit portion between two adjacent teeth, the file can be easily and reliably inserted between the teeth to be ground. be able to. Therefore, it is possible to efficiently form a desired space between two teeth in a short time, and to effectively reduce the workload during dental treatment.

In addition, in this file for inter-tooth grinding, in addition to the central slit portion (6) as the non-grinding surface (5 (51 to 59)), the side of the central slit portion (6) in the longitudinal direction Equipped with a side slit part (left slit part or right slit part) (7 or 8) having one or more unground surfaces (52 to 55, 56 to 59) formed on the part (left or right side) It's okay.

According to this configuration, the side slit portion (the left slit portion or the right slit portion) is provided, so that the resistance when grinding the teeth with the ground surface of the file is reduced, and the ground teeth Shavings that come out will be discharged smoothly without being caught between the teeth and the file.

In addition, in this interdental grinding file, the plurality of non-grinding surfaces (52 to 55, 56 to 59) provided in the side slit portion (7 or 8) extend in the longitudinal direction of the base material (2). Along the longitudinal direction of the substrate (2), the degree of curvature (curvature) gradually decreases from the center to the outside, and the width dimension (W52 to W55, W56 to W59) may be gradually decreased.

According to this configuration, the plurality of non-ground surfaces that constitute the side slit portions have a degree of curvature (curvature) that gradually decreases from the center toward the outer side, and the width dimension thereof gradually decreases. And the closer to the center (central slit), the less resistance there is when moving the file. Therefore, it is possible to effectively reduce the resistance when starting to move the file (when the gap between the teeth is still small). As a result, it is possible to uniformize the force for moving the file when grinding between the teeth (uniformity from the start to the end).

Further, in this interdental grinding file, 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 gradually increase from the center toward the outside along the longitudinal direction of the base material (2).

According to this configuration, the width of the polishing surface gradually increases from the center toward the outside, so that the closer to the center (central slit), the smaller the resistance when moving the file. done. Therefore, it is possible to effectively reduce the resistance when starting to move the file (when the gap between the teeth is still small). As a result, it is possible to uniformize the force for moving the file when grinding between the teeth (uniformity from the start to the end).

The present invention also provides an inter-tooth grinding device (100) comprising an inter-tooth grinding file (1 to 1-4) having any of the above configurations, comprising at least a vibration generator (106) and the vibration a vibrator (107) that receives a drive signal from a generator (106) and vibrates; a hand piece (102) that incorporates a holder (108) connected to the vibrator (107); ) and holding the files (1 to 1-4), and a power supply (104) for supplying power to the vibration generator (106). It is characterized by comprising:

Even in the inter-tooth grinding apparatus of the type in which the vibration generator applies vibration to the file as described above, by providing the file of the present invention, the file can be easily and reliably inserted between the teeth to be ground. In addition, the file can be moved smoothly when grinding between the teeth. Therefore, it is possible to efficiently form a desired space between two teeth in a short time, and to effectively reduce the workload during dental treatment.

According to the file for inter-tooth grinding and the inter-tooth grinding device having the same according to the present invention, the file can be easily and reliably inserted between the teeth, and the file can be smoothly used when grinding the inter-tooth space. 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.

BRIEF DESCRIPTION OF THE DRAWINGS It is a figure which shows the file for inter-tooth grinding concerning one Embodiment of this invention, (a) is a front view, (b) is AA sectional drawing of (a). FIG. 10 is a diagram showing another example of a file for inter-tooth grinding; FIG. 10 is a diagram showing another example of a file for inter-tooth grinding; FIG. 10 is a diagram showing another example of a file for inter-tooth grinding; (a) is a partial front view showing the row of teeth before space making, and (b) is a partial front view showing the row of teeth after space making. 1 is an overall configuration diagram of an inter-tooth grinding device according to an embodiment of the present invention; FIG. FIG. 7 is a cross-sectional view taken along line BB of FIG. 6;

An embodiment of the present invention will be described below with reference to the accompanying drawings.
[First Embodiment: File for Grinding Between Teeth]
FIG. 1 is a diagram showing a file for inter-tooth grinding according to an embodiment of the present invention, where (a) is a front view and (b) is a sectional view taken along the line AA of (a). A file 1 shown in FIG. 1 is an interdental grinding file for forming a space (gap) necessary for orthodontics between two adjacent teeth of a patient by shaving the space between two adjacent teeth of a patient in dental treatment. Hard microparticles (abrasive grains) such as alumina and diamond are applied to the front and back surfaces 2A and 2B of the base material 2, which is a sheet material (thin plate material) made of synthetic resin foil such as polyester or metal foil such as stainless steel. A deposited grinding surface 3 is formed. The base material 2 is formed in a belt shape with an elongated outer diameter. On the front and back surfaces 2A and 2B of the base material 2, there are a grinding surface 3 portion to which hard fine particles (abrasive grains) are attached and a non-grinding surface 5 (51 to 59) to which hard fine particles (abrasive grains) are not attached. portion. Although FIG. 1A shows only one of the front and back surfaces 2A and 2B (front surface 2A) of the base material 2 of the file 1, the front surface 2A and back surface 2B of the file 1 have the same shape (control). is formed in Therefore, although only the front surface 2A will be described in the following description, the same applies to the back surface 2B.

The surface 2A of the file 1 (base material 2) shown in FIG. A left slit portion (side slit portion) 7 and a right slit portion (side slit portion) 8 having a non-ground surface are provided on both sides (left and right sides) of the central slit portion 6. 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 adhered.

The non-ground surface 51 that constitutes the central slit portion 6 has a curved line shape in which the left and right edges are curved, and the center in the vertical direction is constricted and the upper and lower ends (both sides in the width direction with respect to the longitudinal direction of the base material 2) ) has an enlarged constriction shape. In addition, 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 the file 1 in the width direction. and non-ground surfaces 56-59, respectively. The plurality of non-ground surfaces 52 to 55 and 56 to 59 gradually decrease in degree of curvature (curvature) from the center toward the outside (left and right), and their width dimensions W52 to W55 and W56 to W59 gradually decrease. It's getting smaller. (W52>W53>W54>W55, W56>W57>W58>W59) In addition, between the plurality of non-ground surfaces 52 to 55 and 56 to 59 that constitute the left slit portion 7 and the right slit portion 8, Widths L1 to L5 of the grinding surface 3 (widths in the longitudinal direction of the file 1) gradually increase from the longitudinal center of the file 1 (portion of the central slit portion 6) to the left and right (outside). (L1<L2<L3<L4<L5)

A file 1 shown in FIG. 1 is used for grinding between teeth by holding it with a hand (fingers), inserting it between teeth, and moving it. That is, by holding both sides of the file 1 in the longitudinal direction and lightly pulling it left and right, the intermediate portion is pulled taut. In this 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-ground surface on which hard fine particles (abrasive grains) are not adhered, the file 1 can be smoothly inserted without being caught between teeth.

Thereafter, by moving the file 1 left or right in the longitudinal direction, the interdental space moves from the central slit portion 6 of the file 1 toward the left or right 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 when grinding the teeth on the grinding surface 3 is reduced, and the shavings generated from the ground teeth are removed from the teeth and the file. It will be discharged smoothly without being caught between 1. Furthermore, the plurality of non-ground surfaces 52 to 55 and 56 to 59 that constitute the left slit portion 7 or the right slit portion 8 gradually decrease in degree of curvature (curvature) from the center toward the outside (left and right), and Since the width dimensions W52 to W55 and W56 to W59 are gradually reduced, the closer to the center (central slit portion 6), the smaller the resistance when the file 1 is moved. Therefore, it is possible to effectively reduce the resistance when starting to move the file 1 (when the gap between the teeth is still small). As a result, it is possible to make the force for moving the file 1 uniform (uniform from the start to the end) when grinding between the teeth.

FIG. 2 is a front view showing another example of a file for inter-tooth grinding. The file 1-2 shown in FIG. It has a left slit portion 7 and a right slit portion 8 in which non-ground surfaces 62 and 63 are formed one by one. The unground surface 62 of the left slit portion 7 and the unground surface 63 of the right slit portion 8 are also linear penetrating the file 1-2 in the width direction (vertical direction in the figure), and their width dimensions (horizontal direction in the figure) ) 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, the surface 2A of the file 1-2 (base material 2) other than the central slit portion 6 and the left and right slit portions 7, 8 is the ground surface 3 to which the hard fine particles are adhered.

FIG. 3 is a front view showing still another example of a file for inter-tooth grinding. The file 1-3 shown in the figure has only a central slit portion 6 consisting of a straight band-shaped unground surface 61 penetrating in the width direction at the center of the band-shaped base material 2 in the longitudinal direction.

FIG. 4 is a front view showing still another example of a file for inter-tooth grinding. The file 1-4 shown in the figure has only a central slit portion 6 consisting of a straight band-shaped unground surface 61 penetrating in the width direction at the center of the band-shaped base material 2 in the longitudinal direction. The non-ground surface 61 of the central slit portion 6 has one end (one end in the width direction of the file 1-4 (lower in the drawing)) larger in width than the other portions. The widened portion 61a is formed.

The file 1-4 shown in FIG. 4, when inserting the non-ground surface 61 of the central slit portion 6 between the teeth to be ground, extends from the widened portion (lower portion in the figure) 61a of the non-grinding surface 61 to the inter-tooth space. be inserted into the As a result, the wide width of the insertion portion of the non-ground surface 61 facilitates the work of inserting the file 1-4 between the teeth.

FIG. 5(a) is a partial front view showing the row of teeth before space making, and FIG. 5(b) is a partial front view showing the row of teeth after space making. By grinding the teeth T using the file 1 (1-2 to 1-4) having the above configuration, the teeth T that were in contact with each other and were aligned as shown in FIG. Between them, as shown in FIG. 5(b), a space (clearance) .delta. of a desired size is efficiently formed in a short time.

[Second embodiment: inter-tooth grinding device]
FIG. 6 is an overall configuration diagram of an inter-tooth grinding apparatus according to an embodiment of the present invention, and FIG. 7 is a cross-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 power to the handpiece 102. there is

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

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

As shown in FIG. 7, the grinding tip 110 includes a support portion (handle) 111 bent in a U-shape and a file 1 (1-2) as a grinding tool having both ends 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. , 2B (the pattern shapes of the ground surface 3 and the non-ground surface 5) may be those shown in FIGS.

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

The power supply device 104 shown in FIG. 6, for example, converts electric power from a commercial power supply (AC 100, 50/60 Hz) into a safe voltage of about DC 12 V, rectifies it, and generates vibrations in the handpiece 102 via a power cord 109. It fulfills the function of supplying the device 106 . The power supply device 104 is provided with a power switch 104a and a pedal switch 104b. When the pedal switch 104b is stepped on with the power switch 104a turned on (ON), power from the power supply device 104 into the handpiece 102 is activated. power is supplied to the vibration generator 106 of . Then, a drive signal is transmitted from the vibration generator 106 to the vibrator 107 and the vibrator 107 vibrates. The vibrations may be sonic vibrations, ultrasonic vibrations, or the like.

Application of the present invention is not limited to the embodiments described above, and various modifications are possible within the scope of the technical idea described in the claims, specification and drawings. For example, in the file 1 shown in the above embodiment, in addition to the central slit portion 6 provided substantially in the longitudinal direction of the base material 2, side slit portions are provided on both sides of the central slit portion 6 in the longitudinal direction of the base material 2. Although the case where the left slit portion 7 and the right slit portion 8 are provided respectively (both left and right sides) is shown, in addition to this, only one of the left slit portion 7 and the right slit portion 8 is provided. is also possible. Also, although not shown, instead of the central slit portion 6, a longitudinal belt-shaped non-ground surface that penetrates in the width direction is provided at the longitudinal end (left end or right end) 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 Grinded surface 5 (51 to 59) Non-ground surface 6 Central slit part 7 Left slit part (side slit part)
8 right slit (side slit)
REFERENCE SIGNS LIST 100 interdental grinding device 102 handpiece 102A gripping portion 102B tip portion 110 grinding tip 111 support portion (handle)
104 Power supply device 104a Power switch 104b Pedal switch 106 Vibration generator 107 Vibrator 108 Holder 109 Power cord T Teeth
δ Space (gap)

Claims (4)

An interdental grinding file for forming a required space between teeth,
The file is provided with a grinding surface to which hard fine particles for grinding are attached and a non-grinding surface to which the hard fine particles are not attached on the front and back surfaces of a base material formed in a flat strip shape,
As the non-ground surface, a central slit portion having a longitudinal belt-shaped non-grind surface that penetrates in the width direction at approximately the center in the longitudinal direction of the base material ,
As the non-ground surface, a side slit portion having a non-ground surface in which one or a plurality of slits are formed on the side portion of the central slit portion in the longitudinal direction,
The plurality of non-ground surfaces provided in the side slit portions have a curved linear shape whose degree of curvature (curvature) gradually decreases from the center toward the outside along the longitudinal direction of the substrate, and A file for inter-tooth grinding, characterized in that their width dimension gradually decreases from the center to the outside along the longitudinal direction of the material . The width dimension of the polishing surfaces between each of the plurality of non-grinding surfaces provided in the side slit portions gradually increases from the center to the outside along the longitudinal direction of the substrate. A file for inter-tooth grinding according to claim 1. An interdental grinding file for forming a required space between teeth,
The file is provided with a grinding surface to which hard fine particles for grinding are attached and a non-grinding surface to which the hard fine particles are not attached on the front and back surfaces of a base material formed in a flat strip shape,
As the non-ground surface, a central slit portion having a longitudinal belt-shaped non-grind surface that penetrates in the width direction at approximately the center in the longitudinal direction of the base material,
As the non-ground surface, a side slit portion having a non-ground surface in which one or a plurality of slits are formed on the side portion of the central slit portion in the longitudinal direction,
The width dimension of the polishing surfaces between each of the plurality of non-grinding surfaces provided in the side slit portions gradually increases from the center to the outside along the longitudinal direction of the substrate. A file for inter-tooth grinding. An inter-tooth grinding device comprising the inter-tooth grinding file according to any one of claims 1 to 3,
at least a vibration generator; a vibrator that receives a drive signal from the vibration generator and vibrates;
a handpiece containing a holder connected to the transducer;
a grinding tip detachably attached to the holder and holding the file;
a power supply that supplies power to the vibration generator;
An inter-tooth grinding device comprising:

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