JP2005349046A - Tool for preventing drop-out of mouthpiece, mouthpiece, and orthodontic appliance including these - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a tool for preventing the drop-out of a mouthpiece capable of reducing possibility to give a foreign body feeling in a mouth to a user and raise sensuousness, and to provide a mouthpiece, and an orthodontic appliance including these. <P>SOLUTION: The orthodontic appliance 1 includes the mouthpiece 3 which is mounted on teeth 2; and the tool 9 for preventing the drop-out of the mouthpiece for preventing the drop-out of the mouthpiece 3 from the teeth 2. The tool 9 for preventing the drop-out of the mouthpiece includes plate-like pieces 6 having a joint surface 5 to be joined with a tooth surface 4; and projecting parts 8 projected from a surface 7 which faces each joint surface 5 so as to lock the mouthpiece 3 to be mounted on the teeth 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a mouthpiece fall-off prevention device for preventing a mouthpiece attached to a tooth from falling off, a mouthpiece used therewith, and an orthodontic appliance including these mouthpieces.

JP 2003-319948 A

  For example, Patent Document 1 has an annular body that is attached to a tooth by tightening the tooth and a protrusion provided on the annular body, and the mouse is engaged by engagement of the protrusion with the mouthpiece. There has been proposed a mouthpiece fall-off prevention tool for preventing the piece from falling off the teeth.

  By the way, in such a mouthpiece fall-off prevention tool, since the annular main body is adapted to be attached to the tooth by tightening the tooth, the annular main body will be arranged over the entire circumference of the tooth, Therefore, there is a possibility that the wearer wearing the mouthpiece fall-off prevention device is likely to feel a foreign object in the mouth. Further, in such a mouthpiece fall-off preventing device, the annular body is attached to the tooth by tightening the teeth, so the attachment part of the annular body with respect to the teeth is the cheek side part or the tongue side part. For example, it is difficult to arbitrarily select the ring body. For example, the annular main body attached to the front teeth or the like may be visually recognized from outside the mouth, and it is difficult to improve aesthetics.

  The present invention has been made in view of the above-described points, and an object of the present invention is to reduce the risk of giving the wearer a foreign body sensation in the mouth and to improve aesthetics. An object of the present invention is to provide a piece fall-off prevention device, a mouthpiece, and an orthodontic appliance having the same.

  The mouthpiece drop-off prevention device according to the first aspect of the present invention is a plate-like piece that has a plate-like piece having a joint surface joined to a tooth surface on one surface and a mouthpiece attached to the tooth. And a protruding portion protruding from the other surface facing the joining surface of the piece.

  According to the mouthpiece fall-off preventing device of the first aspect, since the plate-shaped piece having the joint surface that is joined to the tooth surface is provided, the joint region of the joint surface with respect to the tooth surface can be narrowed. The plate-like piece can be partially attached to the tooth, and the attachment part of the plate-like piece can be arbitrarily selected as the part on the lingual side of the tooth, the part on the cheek side, etc. For example, the mouthpiece fall-off prevention device can be attached to teeth so that the mouthpiece fall-out prevention device is not visually recognized from outside the mouth, thus reducing the possibility of giving the wearer a sense of foreign matter in the mouth. In addition to improving the aesthetics.

  In the present invention, the plate-like piece may be made of a thin plate that can be deformed so as to match the shape of the tooth surface, like the mouthpiece drop-off preventing device of the second aspect.

  According to the mouthpiece drop-off preventing device of the second aspect, since the above-described configuration is provided, the joint surface can be reliably joined to the tooth surfaces of various shapes without a gap.

  In the present invention, the plate-like piece and the protruding portion may be made of metal or resin as in the mouthpiece drop-off preventing device of the third aspect.

  In the present invention, like the mouthpiece fall-off prevention tool of the fourth aspect, the joint surface may have a large number of irregularities. Such many unevenness | corrugations may be actualized, for example by meshing a joint surface.

  According to the mouthpiece fall-off preventing device of the fourth aspect, since the above-described configuration is provided, when the joining surface is joined to the tooth surface by an adhesive, such an adhesive has a large number of irregularities. Since it enters the concave portion, the joint surface can be more firmly joined to the tooth surface.

  In the present invention, like the mouthpiece fall-off prevention tool of the fifth aspect, the joint surface may be bent in a concave or convex shape as a whole.

  In the present invention, the plate-like piece and the protruding portion may be integrally formed as in the mouthpiece drop-off preventing tool of the sixth aspect.

  The mouthpiece according to the first aspect of the present invention has one or a plurality of indentations to be locked to the protrusions of one or more mouthpiece dropout prevention tools according to any one of the first to fifth aspects. May be provided.

  According to the mouthpiece of the first aspect, since the above-described configuration is provided, the mouthpiece can be more firmly locked by the mouthpiece fall-off preventing device, and thus the mouthpiece can be detached. Can be prevented more reliably.

  In the present invention, as in the mouthpiece of the second aspect, it may be used for orthodontics.

  The orthodontic appliance of the present invention may comprise one or a plurality of mouthpiece fall-off prevention devices according to any one of the first to fifth aspects and the mouthpiece according to the first or second aspect.

  In addition, the mouthpiece fall-off prevention tool, the mouthpiece or the orthodontic appliance in the present invention may be used for either one or both of the maxillary teeth and the mandibular teeth. Moreover, although the mouthpiece in this invention can be comprised, for example for orthodontics and sports, it is preferable to be comprised for orthodontics.

  According to the present invention, it is possible to reduce the possibility of giving a wearer a foreign body sensation in the mouth, and to improve the aesthetics. Can be provided.

  Next, an example of an embodiment of the present invention will be described in more detail based on an example shown in the figure. The present invention is not limited to these examples.

  FIG. 1 is an explanatory diagram when the orthodontic appliance 1 of this example is attached to the upper jaw side tooth 2, and FIG. 2 is a case where the orthodontic appliance 1 of this example is used for the lower jaw side tooth 2. FIGS. 3 to 5 are explanatory views of the mouthpiece drop-off preventing device 9 before being attached to the tooth 2, and FIG. 6 is an explanatory view of the orthodontic appliance 1 attached to the tooth 2. FIG.

  The orthodontic appliance 1 includes a mouthpiece 3 attached to the tooth 2 and one or a plurality of mouthpiece fall-off prevention tools for preventing the mouthpiece 3 from dropping off from the tooth 2, in this example, a plurality of mouthpiece fall-off preventions. And a tool 9.

  The mouthpiece 3 has a shape substantially corresponding to the maxillary dentition when the mouthpiece 3 is attached to the maxillary tooth 2 as shown in FIG. As shown in FIG. 2, when mounted on the lower jaw side tooth 2, it has a shape substantially corresponding to the lower jaw side dentition.

  The thin mouthpiece 3 for orthodontics is formed on the basis of the shape of a tooth shape that is preliminarily molded from the tooth 2 on which the mouthpiece drop-off prevention tool 9 is mounted. The mouthpiece 3 is locked to the main body 11 formed in a substantially horseshoe shape along the tooth row, the concave inner surface 13 formed on the main body 11 so as to contact the teeth 2, and the protrusion 8. Are provided with one or a plurality of indentations provided on the concave inner surface 13, in this example a plurality of indentations 14.

  The main body 11 is made of a synthetic resin having translucency, in this example, cellulose acetobutyrate, and can cover the tooth 2 and the mouthpiece fall-off prevention device 9 when the mouthpiece 3 is attached to the tooth 2. It is formed as follows. The thickness of the main body 11 is about 0.8 mm to 2 mm. The main body 11 has a dentition when the dentition before correction and the dent 2 to be corrected are arranged at an appropriate position so that pressure toward the appropriate position can be applied to the dent 2 to be corrected. It is formed based on. The concave inner surface 13 has a shape corresponding to the shape of the tooth surface 4 so as to be in close contact with the tooth surface 4.

  The plurality of depressions 14 have shapes corresponding to the respective shapes of the plurality of protrusions 8 so as to be locked by being fitted to the plurality of protrusions 8.

  The above mouthpiece 3 is attached to the tooth 2 so as to cover the tooth 2 and the mouthpiece drop-off prevention device 9, and the plurality of depressions 14 are respectively locked to the corresponding plurality of protrusions 8. Yes.

  The plurality of mouthpiece fall-off prevention tools 9 face the joint surface 5 so as to lock the plate-like piece 6 having the joint surface 5 joined to the tooth surface 4 and the mouthpiece 3 attached to the tooth 2. Protrusions 8 projecting from the surface 7 are provided.

  The plate-like piece 6 and the protruding portion 8 may be made of metal, for example, stainless steel, or may be made of resin, for example, photopolymerization resin. The plate-like piece 6 and the protruding portion 8 may be integrally formed with each other as in this example.

  The plate-like piece 6 is made of a thin plate that can be deformed so as to match the shape of the tooth surface 4. The thickness of the plate-like piece 6 may be about 0.05 mm to 0.5 mm, or may be about 0.1 mm to 0.5 mm. The plate-like piece 6 is adjusted to such a size that the peripheral edge 30 is removed by cutting or the like so that it is partially attached to the tongue-side portion 31 or the cheek-side portion 32 of the tooth surface 4 of each tooth 2. It has come to be. In addition, the taper surface 50 is formed in the periphery of the plate-shaped piece 6 from which the periphery 30 was removed so that the angle (theta) formed by the tooth surface 4 and the surface 7 may become an obtuse angle, for example, as shown in FIG. May be.

  As shown in FIG. 4, the bonding surface 5 has a large number of irregularities 41, and in the present example, the irregularities 41 are formed by applying mesh processing to the surface that becomes the bonding surface 5 in the plate-like piece 6. Has been. The joint surface 5 may be bent in a concave or convex shape as a whole so as to have a shape corresponding to the shape of the tooth surface 4. The joint surface 5 only needs to have a shape corresponding to the shape of the tooth surface 4, and therefore may be bent, for example, in a generally concave shape or a convex shape. Or you may have the part bent in concave shape.

  The protruding portion 8 may have any of a substantially hemispherical shape, a square shape, a columnar shape, or a truncated cone shape, but in this example, the protruding portion 8 has a substantially hemispherical shape. The projecting length from the surface 7 of the projecting portion 8 to the projecting tip 45 may be 2 mm or less, and such a length may be about 1.5 mm to 2 mm. The protrusion 8 has a thickness substantially equal to the thickness of the plate-like piece 6 or a thickness larger than the thickness of the plate-like piece 6. In this example, the protruding portion 8 is formed by pressing a part of the plate-like piece 6 from the joining surface 5 side.

  Such a plurality of mouthpiece fall-off prevention devices 9 can be selectively attached to any tooth 2, but in this example, the front teeth 21, 22 and 23 located on one side of the midline 20, and Molar teeth 24 and 25, and front teeth 21, 22 and 23 and molar teeth 24 and 25 located on the other side of the midline 20 are provided.

  In this example, the mouthpiece fall-off prevention tool 9 is attached to the lower jaw side tooth 2 in the same manner as the attachment to the upper jaw side tooth 2, so that it is attached to the upper jaw side tooth 2 hereinafter. The mouthpiece drop-out prevention tool 9 will be described in detail, and the mouthpiece drop-out prevention tool 9 attached to the lower jaw side tooth 2 will be appropriately denoted by the same reference numerals and detailed description thereof will be omitted. Further, the mouthpiece dropout prevention tool 9 located on one side of the median line 20 and the mouthpiece dropout prevention tool 9 located on the other side of the median line 20 are configured in substantially the same manner. Therefore, the mouthpiece dropout prevention tool 9 positioned on one side of the median line 20 will be described in detail below, and the mouthpiece dropout prevention tool 9 positioned on the other side of the median line 20 will be described below. The same reference numerals are given to the drawings as appropriate, and the detailed description thereof is omitted.

  In this example, the mouthpiece drop prevention tool 9 is attached to the front teeth 21, 22 and 23, and to the molar teeth 24 and 25, respectively.

  As shown in FIG. 6, in particular, the mouthpiece drop prevention tool 9 attached to the front teeth (canine teeth) 23 has a bonding surface 5 having a large number of irregularities 41 on the tongue side portion 31 of the tooth surface 4 of the front teeth 23. And is bent so as to be generally convex with respect to the portion 31 by being deformed so as to match the shape of the portion 31 of the front tooth 23. The protruding portion 8 is on the mouthpiece 3 side and protrudes toward the lingual side.

  Note that the mouthpiece drop-off prevention device 9 provided on each of the front teeth 21 and 22 is bent in a convex shape substantially in the same manner as the above-described mouthpiece drop-off prevention device 9 provided on the front teeth 23, and the protruding portion 8 is formed in the mouthpiece. Since it protrudes toward the lingual side on the third side, the same reference numerals are given to the drawings, and a detailed description of the mouthpiece dropout prevention tool 9 provided on each of the front teeth 21 and 22 will be omitted.

  The two mouthpiece drop prevention devices 9 provided on the molar 25 are opposed to each other with the molar 25 in between. The joint surface 5 of one mouthpiece fall-off prevention tool 9 provided on the molar 25 is joined to the lingual part 31 of the tooth surface 4 of the molar 25 by an adhesive, and the part 31 of the molar 25 By being deformed so as to match the shape, the portion 31 is bent in a generally concave shape. The protruding portion 8 of one mouthpiece fall-off prevention tool 9 provided on the molar 25 protrudes toward the lingual side on the mouthpiece 3 side. The joint surface 5 of the other mouthpiece drop prevention tool 9 provided on the molar 25 is joined to the buccal side portion 32 of the tooth surface 4 of the molar 25 with an adhesive, and the portion 32 of the molar 25 By being deformed so as to match the shape, the portion 32 is bent in a generally concave shape. The protruding portion 8 of the other mouthpiece drop prevention tool 9 provided on the molar 25 is on the mouthpiece 3 side and protrudes toward the cheek side.

  The two mouthpiece fall-off prevention tools 9 provided on the molars 24 are configured in substantially the same manner as the above-described two mouthpiece fall-off prevention tools 9 provided on the molars 25. The detailed description of the mouthpiece fall-off prevention tool 9 provided with the same reference numerals as appropriate and provided on the molars 24 will be omitted.

  According to the orthodontic appliance 1 described above, a plate-like piece 6 having a joint surface 5 to be joined to the tooth surface 4 on one surface and a mouthpiece 3 attached to the tooth 2 are locked. Since the mouthpiece drop-off preventing device 9 having the protruding portion 8 protruding from the surface 7 facing the bonding surface 5 of the piece 6 is provided, the bonding area of the bonding surface 5 to the tooth surface 4 is narrowed. The plate-like piece 6 can be partially attached to the tooth 2, and the attachment part of the plate-like piece 6 can be arbitrarily set to the tongue-side part 31 or the cheek-side part 32 of the tooth 2. Therefore, for example, the mouthpiece fall-off prevention device 9 can be attached to the tooth 2 so that the mouthpiece fall-off prevention device 9 is not visually recognized from outside the mouth, and thus orthodontic treatment is possible. In addition to reducing the possibility of giving the wearer of the device 1 a foreign body sensation in the mouth, It can also strive to above.

  According to the orthodontic appliance 1, since the plate-like piece 6 is made of a thin plate that can be deformed so as to match the shape of the tooth surface 4, the joint surface 5 can be reliably attached to the tooth surface 4 of various shapes without a gap. Can be joined.

  According to the orthodontic appliance 1, since the bonding surface 5 has a large number of irregularities 41, when the bonding surface 5 is bonded to the tooth surface 4 with an adhesive, such an adhesive has a large number of irregularities 41. Therefore, the joint surface 5 can be more firmly joined to the tooth surface 4.

  According to the orthodontic appliance 1, one or a plurality of mouthpieces 3 are to be locked to one or a plurality of mouthpiece fall-off prevention tools, in this example a plurality of mouthpiece drop-out prevention tools 9 protruding portions 8. Therefore, the mouthpiece 3 can be more firmly locked by the mouthpiece dropout prevention device 9, so that the mouthpiece 3 can be more reliably detached from the teeth 2. Can be prevented.

  The orthodontic appliance 1 is a tooth surface of the molar 25 in place of or in addition to the mouthpiece fall-off prevention device 9 provided on the tongue-side portion 31 or the cheek-side portion 32 of the tooth surface 4 of the molar 25. 4 may be provided with a mouthpiece drop-off prevention device 9 provided at the distal portion 33 of the distal side. Further, when the molar 25 has already been extracted, in place of or in addition to the mouthpiece fall-off prevention tool 9 provided on the tongue-side portion 31 or the cheek-side portion 32 of the tooth surface 4 of the molar 24. The mouthpiece drop prevention tool 9 provided in the distal portion 33 of the tooth surface 4 of the molar 24 may be provided.

  Further, the orthodontic appliance 1 may be provided with a mouthpiece 3 formed so as to be attached to a part of the dentition instead of the mouthpiece 3, for example, only attached to the adjacent molar teeth. A mouthpiece 3 may be provided.

It is explanatory drawing at the time of mounting | wearing with the tooth | gear at the upper jaw side of the example of embodiment of this invention. It is explanatory drawing at the time of mounting | wearing with the lower jaw side tooth | gear of the example of embodiment of this invention. It is perspective explanatory drawing seen from the mouthpiece side of the mouthpiece fall-off prevention tool mainly of the example shown in FIG. 1 or FIG. FIG. 3 is a perspective explanatory view of the example shown in FIG. 1 or 2 as viewed mainly from the tooth side of the mouthpiece dropout prevention tool. It is VV sectional view explanatory drawing of the example shown in FIG. It is a partial explanatory view of the example shown in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Orthodontic appliance 2 Tooth 3 Mouthpiece 4 Tooth surface 5 Joint surface 6 Plate piece 7 Surface 8 Projection part 9 Mouthpiece fall prevention tool

Claims (9)

  A plate-like piece having a joint surface to be joined to the tooth surface on one surface and a protrusion projecting from the other surface facing the joint surface of the plate-like piece so as to lock the mouthpiece attached to the tooth And a mouthpiece drop-off prevention device.   The mouthpiece dropout prevention tool according to claim 1, wherein the plate-like piece is a thin plate that can be deformed so as to match the shape of the tooth surface.   The mouthpiece dropout prevention tool according to claim 1 or 2, wherein the plate-like piece and the protrusion are made of metal or resin.   The mouthpiece dropout prevention tool according to any one of claims 1 to 3, wherein the joint surface has a large number of irregularities.   The mouthpiece dropout prevention tool according to any one of claims 1 to 4, wherein the joint surface is bent in a concave shape or a convex shape as a whole.   The mouthpiece dropout prevention tool according to any one of claims 1 to 5, wherein the plate-like piece and the protruding portion are integrally formed.   A mouthpiece comprising one or a plurality of indentations to be locked to the protruding portion of the one or more mouthpiece fallout prevention devices according to any one of claims 1 to 6.   The mouthpiece according to claim 7, wherein the mouthpiece is used for orthodontics.   An orthodontic appliance comprising one or more mouthpiece fall-off prevention devices according to any one of claims 1 to 6 and the mouthpiece according to claim 7 or 8.

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