JP2009000412A - Dental brace - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a dental brace capable of suitably moving teeth and facilitating the attachment/detachment to/from the teeth. <P>SOLUTION: This dental brace 1 includes an abutment part 4 abutting on the surfaces 3 in a tongue side of front teeth 2 whose position should be adjusted by the orthodontics, a wire having an energization part 5 which energizes the abutment part 4 for moving the front teeth 2 to be position-adjusted toward a position to be disposed after the orthodontics and extending along the surface 3 in the tongue side of the tooth row, a pair of mouthpieces 12 joined with sites 9 and 10 in the side of the both ends 7 and 8 of the wire and being installed on molar teeth 11 for retaining the wire 6, and an engagement projection 13 joined with the surface 3 in the tongue side of the front teeth to be position-adjusted and engaged with the abutment 4 for transmitting the energizing force from the energization part 5 to the front teeth 2. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to orthodontics, and more particularly to an orthodontic appliance that corrects the dentition by urging the front teeth in a desired direction.

JP 2005-349046 A

  For example, Patent Document 1 proposes an orthodontic mouthpiece. When such a mouthpiece is formed so as to have translucency, it is difficult to be visually recognized from the outside of the mouth, which contributes to an improvement in aesthetics.

  By the way, in such a mouthpiece, it is difficult to move teeth, particularly to reduce and extract them, in order to perform orthodontics by covering the teeth. Moreover, it is preferable that the orthodontic appliance can be easily detached from the teeth from the viewpoint of dental hygiene.

  The present invention has been made in view of the above-described points, and an object thereof is to provide an orthodontic appliance that can move teeth appropriately and that can be easily detached from the teeth. It is in.

  The orthodontic appliance of the present invention abuts so that the abutment portion that abuts on the front teeth to be position-adjusted in orthodontics and the front teeth to be position-adjusted move toward the position to be placed after orthodontics. Has a biasing part that biases the part, extends along the lingual surface of the dentition, and is attached to the molar teeth to hold the wire while being joined to the both ends of the wire And a pair of holders.

  According to the orthodontic appliance of the present invention, the anterior teeth can be preferably moved in order to provide the wire having the abutting portion and the biasing portion described above, and the pair of holding tools can be attached to the molar teeth. Since it is mounted, the orthodontic appliance can be easily detached from the teeth.

  In a preferred example of the orthodontic appliance of the present invention, the urging portion urges the abutting portion so that the front tooth to be adjusted is squeezed or squeezed out toward the position to be arranged after the orthodontic treatment. It has become. According to such a preferable example, the front teeth can be suitably reduced or squeezed out.

  In a preferred example of the orthodontic appliance of the present invention, the abutting portion is composed of a wire portion disposed on the lingual side with respect to the front tooth, and the biasing portion is a pair of wires connected to both ends of the portion. It consists of parts.

  In a preferred example of the orthodontic appliance of the present invention, each of the pair of holders comprises a mouthpiece.

  In a preferred example of the orthodontic appliance of the present invention, the orthodontic appliance is joined to the abutment portion so that the urging force from the urging portion can be transmitted to the anterior tooth while being joined to the lingual surface of the front tooth to be adjusted. Engaging engagement protrusions are provided. According to such a preferable example, the contact portion can be reliably engaged by the engagement protrusion, and the urging force from the urging portion can be suitably transmitted to the front teeth.

  ADVANTAGE OF THE INVENTION According to this invention, a tooth can be moved suitably, Furthermore, the orthodontic appliance which can be easily attached or detached from a tooth 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.

  1 to 6, the orthodontic appliance 1 of this example includes an abutment portion 4 that abuts on the surface 3 on the lingual side of the front tooth 2 to be position-adjusted and a front tooth 2 to be position-adjusted. A wire 6 having a biasing portion 5 that biases the abutting portion 4 so as to be moved toward a position to be disposed after correction, and extending along the lingual surface 3 of the dentition; A pair of mouthpieces 12 as a pair of holders that are joined to the portions 9 and 10 on both ends 7 and 8 side of the wire 6 and are attached to the molar teeth 11 to hold the wire 6, and the front teeth to be adjusted in position And an engaging protrusion 13 that engages with the abutting portion 4 so that the urging force from the urging portion 5 can be transmitted to the front teeth 2. . In this example, the urging portion 5 urges the abutting portion 4 so that the front teeth 2 are squeezed down toward a position where the front teeth 2 should be disposed after orthodontic treatment.

  The front teeth 2 include medium incisors 21, side incisors 22, and canines. The molar 11 includes a first premolar, a second premolar 23, a first molar 24, a second molar 25 and a third molar 26. In this example, the front teeth 2 to be adjusted are the middle incisors 21 and the side incisors 22, and the molars 11 to which the mouthpiece 12 is attached are the second premolars 23, the first molars 24, and the second molars 25. As the third molar 26, the orthodontic appliance 1 will be described in detail below.

  The wire 6 has elasticity and may mainly contain titanium and molybdenum. For example, an orthodontic wire may be applied to the wire 6. The wire 6 may be made of metal or synthetic resin.

  The abutting portion 4 includes a portion 41 of the wire 6 disposed on the lingual side with respect to the front tooth 2. The region 41 is located between the two-dot chain lines 42 and 43 shown in FIG. Such a portion 41 extends in an arc shape along the lingual surface 3 of the front tooth 2.

  The biasing portion 5 having elasticity is composed of a pair of portions 46 and 47 of the wire 6 connected to both ends 44 and 45 of the portion 41. The part 46 is located between the two-dot chain lines 42 and 48, and the part 47 is located between the two-dot chain lines 43 and 49. The urging portion 5 is configured to urge the contact portion 4 in the A direction by being bent so that it can be restored when the orthodontic appliance 1 is attached to the teeth. The biasing portion 5 of this example is configured to bias the contact portion 4 in the A direction so as to reduce the front teeth 2. For example, the biasing portion 4 is set to the A direction so as to project the front teeth 2. May be biased in the opposite direction. In such a case, the portion 41 is engaged with the engaging protrusion 13 in a state of being arranged on the gingival side with respect to the engaging protrusion 13. .

  The part 46 is located on one side with respect to the median line 20 shown in FIG. 5, and the part 47 is located on the other side with respect to the median line 20. The part 46 may be formed so as to cause a recoverable deflection in the entire region from the two-dot chain line 42 to the two-dot chain line 48 in order to urge the contact portion 4 in the A direction. The region from the chain line 42 to the two-dot chain line 48 may be formed so as to cause a locally recoverable deflection. In order to cause the local deflection, a part of the portion 46 may be curved. The part 47 may be formed so as to cause a recoverable deflection in the entire region from the two-dot chain line 43 to the two-dot chain line 49 in order to bias the contact portion 4 in the A direction. The region from the chain line 43 to the two-dot chain line 49 may be formed so as to cause a locally recoverable deflection. In order to cause the local deflection, a part of the portion 47 may be curved.

  The biasing force by which the part 46 biases the contact part 4 and the biasing force by which the part 47 biases the contact part 4 may be set in advance to be equal to each other. For example, the biasing force by which the portion 46 biases the contact portion 4 may be set in advance so that the biasing force by which the portion 47 biases the contact portion 4 is set. The biasing force that biases the contact portion 4 may be set in advance such that the portion 47 is less than the biasing force that biases the contact portion 4.

  The parts 46 and 47 are connected to the parts 9 and 10 of the wire 6 at a position near the third molar 26, but may be connected to both ends 7 and 8, for example, No. 6 folded portion 50 is not formed. Further, the orthodontic appliance 1 of this example may include other urging portions and other abutting portions connected to both ends 7 and 8 in addition to the abutting portion 4 and the urging portion 5. In such a case, the other abutment portion may be mounted and engaged with a front tooth, for example, a canine tooth, whose position is to be adjusted by a mouthpiece, an engaging projection, etc., and the other urging portion is a canine tooth whose position is to be adjusted. The other contact portion may be biased so as to be moved toward a position to be disposed after correction.

  The portions 9 and 10 located on the mouthpiece 12 side with respect to the portions 46 and 47 of the wire 6 are respectively embedded in the mouthpiece 12.

  Since the pair of mouthpieces 12 are formed in the same manner, the mouthpiece 12 disposed on one side with respect to the midline 20 will be described in detail, and disposed on the other side with respect to the midline 20. About the mouthpiece 12, the same code | symbol is attached | subjected to a figure suitably and the detailed description is abbreviate | omitted.

  The mouthpiece 12 is made of synthetic resin (including ethylene vinyl acetate (EVA), cellulose acetobutyrate, etc.) and has translucency. In this example, the surface that contacts the tooth surface of the mouthpiece 12 has a shape corresponding to the dentition of the premolar teeth 23 and the molars 24, 25, and 26 located on one side of the midline 20. In the part 61 of the mouthpiece 12 positioned on the lingual side with respect to the premolar teeth 23 and the molars 24, 25 and 26, the parts 9 and 10 and the ends 7 and 8 of the wire 6 are embedded. The mouthpiece 12 is preferably formed to be thin as a whole. In this example, the thickness of the mouthpiece 12 is about 0.8 mm to 2 mm excluding the portion 61. The part 61 may be formed thicker than other parts of the mouthpiece 12. The mouthpiece 12 of this example is formed so as to cover the premolars 23 and the molars 24, 25 and 26, but in addition to these, it may be formed so as to cover the first premolars, Further, as long as the wire 6 can be suitably held, it may be formed so as to cover at least one of the first premolars and premolars 23 and the premolars 24, 25 and 26.

  In addition, the mouthpiece 12 is corrected with the dentition before correction so that, for example, when the molar 11 to be positioned exists, the pressure toward the appropriate position side can be applied to the molar 11. It may be formed based on the dentition when the power molar 11 is arranged at an appropriate position. In such a case, the orthodontics of the molar 11 may be performed together with the orthodontics of the front teeth 2. Can be done.

  For example, as shown in FIGS. 3 and 4, the engaging protrusion 13 protrudes from the lingual surface 3 of the front tooth 2 in a state where it is joined to the front tooth 2. Such engagement protrusions 13 may be made of metal, for example, stainless steel, or may be made of resin, for example, photopolymerization resin. As long as the engagement protrusion 13 has a shape that can be suitably engaged with the contact portion 4, the engagement protrusion 13 may have any shape of a substantially hemispherical shape, a rectangular shape, a cylindrical shape, and a truncated cone shape. Then, it is assumed to be substantially hemispherical. The protrusion length of the engagement protrusion 13 may be 2 mm or less, for example, about 1.5 mm to 2 mm. Such an engaging projection 13 is bonded to the lingual surface 3 of the front tooth 2.

  The orthodontic appliance 1 is attached to the upper teeth as shown in FIGS. 5 and 6, for example. When the mouthpiece 12 is attached to the molar 11, the contact portion 4 is engaged with the engagement protrusion 13, and the biasing portion 5 is bent between the mouthpiece 12 and the contact portion 4. The abutting portion 4 is urged in the A direction based on the restoring force that resists this. Thus, the orthodontic appliance 1 attached to the maxillary tooth gives the A-direction correction force to the intermediate incisors 21 and the side incisors 22 from the contact portion 4 through the engaging protrusions 13. Become. The orthodontic appliance 1 of this example is formed so as to be attached to the upper jaw side teeth. However, for example, when correcting the lower jaw side dental row, of course, it is attached to the lower jaw side teeth. It is formed so that.

  According to the orthodontic appliance 1, the abutment portion 4 that abuts on the front tooth 2 to be position-adjusted and the front tooth 2 to be position-adjusted are moved toward the position to be arranged after the orthodontics. A wire 6 extending along the lingual surface 3 of the dentition, and portions 9 and 10 on both ends 7 and 8 side of the wire 6. Since the mouthpiece 12 as a pair of holders attached to the molar tooth 11 to hold the wire 6 is joined, the front teeth 2 can be suitably moved, and the pair Since the mouthpiece 12 is attached to the molar 11, the orthodontic appliance 1 can be easily detached from the teeth. In addition, according to the orthodontic appliance 1, even if the wearer of the orthodontic appliance 1 opens his / her mouth, the wire 6 is not exposed on the cheek-side surface 66 of the front teeth 2, so that the orthodontic appliance 1 is hardly visible from outside the mouth. The urging portion 5 urges the abutment portion 4 so that the front teeth 2 to be adjusted are squeezed or squeezed out toward the positions to be arranged after orthodontic correction. 2 can be suitably reduced or squeezed out.

  According to the orthodontic appliance 1, the abutment portion 4 is joined to the lingual surface 3 of the front tooth 2 to be position-adjusted and the urging force from the urging portion 5 can be transmitted to the front tooth 2. Since the engagement protrusion 13 is engaged, the contact portion 4 can be reliably engaged by the engagement protrusion 13, and the urging force from the urging portion 5 is preferably applied to the front teeth 2. Can communicate.

  In addition, in the orthodontic appliance 1 of this example, as shown, for example in FIG. 7, you may further comprise the engagement protrusion 65 with which the molar 11 is mounted | worn so that the mouthpiece 12 may be engaged. The engaging protrusion 65 mounted on the lingual surface 3 of the molar 11 protrudes toward the tongue, and the engaging protrusion 65 mounted on the buccal surface 66 of the molar 11 protrudes toward the buccal side. In such a case, each of the mouthpieces 12 is formed with a recessed portion that engages with the engaging protrusion 65 on the surface side that contacts the tooth surface. When the mouthpiece 12 is engaged with the engaging protrusion 65, the mouthpiece 12 can be more securely attached to the molar tooth 11, and thus the wire 6 can be more suitably held by the mouthpiece 12. .

  Further, in the orthodontic appliance 1 of the present example, the abutting portion 4 includes the portion 41, but instead, for example, it covers the front teeth 2 to be orthodontic and is engaged with the engaging protrusions 13. The abutting portion 4 having a mouthpiece (not shown) fixed to the portion 41 may be provided. In such a case, the urging force in the A direction by the urging portion 5 or the A direction is The biasing force in the opposite direction can be easily transmitted to the front teeth 2, and in addition, orthodontics of the front teeth 2 based on the shape of the mouthpiece can be performed.

It is a whole explanatory view of an example of an embodiment of the invention. It is a perspective explanatory view of the example shown in FIG. It is explanatory drawing mainly of an engagement protrusion of the example shown in FIG. It is explanatory drawing mainly of an engagement protrusion of the example shown in FIG. It is explanatory drawing at the time of mounting | wearing to the tooth | gear of the example shown in FIG. It is sectional explanatory drawing at the time of mounting | wearing to the tooth | gear 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 Front tooth 3,66 Surface 4 Contact part 5 Energizing part 6 Wire 11 Molar tooth 12 Mouthpiece 13, 65 Engagement protrusion

Claims (5)

  An abutting portion that abuts on the front tooth to be adjusted in orthodontic and a biasing portion that urges the abutting portion so that the front tooth to be adjusted is moved toward a position to be arranged after orthodontic correction. And a wire extending along the lingual surface of the dentition, and a pair of holders attached to the molar teeth to hold the wire while being joined to both ends of the wire Orthodontic appliances.   The dentition according to claim 1, wherein the urging unit urges the contact portion so that the front teeth to be adjusted are pressed down or squeezed toward a position where the front teeth should be arranged after orthodontic correction. Correction tool.   The tooth according to claim 1 or 2, wherein the abutting portion includes a portion of a wire arranged on the lingual side with respect to the front tooth, and the urging portion includes a pair of portions of the wire connected to both ends of the portion. Column corrector.   The orthodontic appliance according to any one of claims 1 to 3, wherein each of the pair of holders includes a mouthpiece.   An engagement protrusion that is joined to a lingual surface of the front tooth to be position-adjusted and that engages with the abutting portion so that the urging force from the urging portion can be transmitted to the front tooth. The orthodontic appliance according to any one of 1 to 4.

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