JP3212235U - Straightening device - Google Patents

Abstract

The present invention provides a dental orthodontic device that is easy to attach to the oral cavity and that simultaneously improves maxillary and mandibular jaws. An orthodontic orthodontic apparatus 1 for improving shortage of jaw growth is formed with an upper jaw contact portion 10 that contacts the inner surface of the upper jaw, and a lower jaw that is formed integrally with the upper jaw contact portion and contacts the inner surface of the lower jaw. A contact portion 20 and an engagement wire 40 attached to both side surfaces of the upper jaw contact portion and engaged with any molar tooth of the upper dentition. Further, the upper inner wire 50 attached to the front surface of the upper jaw contact portion and applied along the inner surface of the upper jaw dentition, and attached to the front surface of the lower jaw contact portion and applied along the inner surface of the lower jaw dentition. It is preferable to further include a lower inner wire 60. [Selection] Figure 1

Description

  The present invention relates to a dental orthodontic device for improving a shortage of jaw growth.

  Conventionally, various devices have been developed as correction devices for improving insufficient jaw growth. In general, separate orthodontic devices for the upper and lower jaws are attached to the oral cavity for use. On the other hand, for the purpose of providing a correction device that can improve the bite of the patient more effectively, a device in which correction devices for the upper jaw and the lower jaw are connected is known (for example, see Patent Document 1). ).

  Patent Document 1 discloses that an upper resin plate that is attached to the inner surface of the upper jaw and a lower resin plate that is attached to the inner surface of the lower jaw are connected to the front portions of both resin plates by a spring-like connection member that is substantially U-shaped in side view. The upper arched wire is attached to the upper resin plate along the outer surface of the upper dental arch, and the lower arch shape is applied to the lower resin plate along the outer surface of the lower dental arch. A wire is attached, and at least a pair of the connecting members are provided on the left and right sides. Each connecting member includes a plurality of substantially U-shaped linear bodies having a spring property, and a resin-made outer skin fitted to the linear bodies. A straightening device comprising a tube is disclosed.

  However, the correction device of Patent Document 1 has a problem that it is difficult to attach to the mouth. On the other hand, in the conventional orthodontic apparatus separated for the upper jaw and the lower jaw, there is a problem in that pain is often caused when the lower jaw dentition is enlarged, and there is a problem that the time required for the enlargement becomes longer. Furthermore, since the correction device is composed of two, there is a problem that it is troublesome to wear and use.

JP 2013-146442 A

  In view of the above circumstances, an object of the present invention is to provide a dental orthodontic device that is easy to attach to the oral cavity and that simultaneously improves maxillary growth and lower jaw.

In order to solve the above problems, the present invention is grasped as follows.
(1) A first aspect according to the present invention is a dental orthodontic apparatus for improving insufficient jaw growth, wherein an upper jaw contact portion that comes into contact with an inner surface of the upper jaw and the upper jaw contact portion are integrated. A lower jaw abutting portion that is molded and abutted against the inner surface of the lower jaw; and an engagement wire that is attached to both side surfaces of the upper jaw abutting portion and engages with any molar tooth of the upper jaw dentition. And

(2) In the configuration of (1), the lower jaw contact portion includes a left lower jaw contact portion and a right lower jaw contact portion that respectively extend downward from both side surfaces of the upper jaw contact portion.

(3) In the configuration of (1) or (2), the upper jaw contact portion includes a left upper jaw contact portion and an upper right jaw contact portion, and the left upper jaw contact portion and the upper right jaw contact portion. Further provided is an expansion / contraction connecting portion that is connected in an expandable / reducible manner.

(4) In any one of the configurations (1) to (3), the engagement wire is formed in a substantially X shape in a side view.

(5) In any one of the configurations (1) to (4), the upper inner wire attached to the front surface of the upper jaw contact portion and applied along the inner surface of the upper jaw dentition, and the lower jaw contact And a lower inner wire attached to the front surface of the portion and applied along the inner surface of the lower dentition.

  According to the present invention, it is possible to provide a dental orthodontic device that is easy to attach to the oral cavity and that simultaneously improves maxillary growth deficiency in the upper and lower jaws.

It is a perspective view which shows the correction apparatus which concerns on this invention. It is the top view which looked at the correction apparatus which concerns on this invention from the downward direction. It is the front view which looked at the correction apparatus which concerns on this invention from the front. FIG. 4 is a plan view of the state in which the correction device is in contact with the inner surface of the upper jaw when viewed from below, corresponding to FIG. 2. FIG. 4 is a front view of the state in which the correction device is in contact with the inner surfaces of the upper jaw and the lower jaw corresponding to FIG. Corresponding to FIG. 4, it is a plan view of a modification of the correction device viewed from below. FIG. 6 is a front view of a modification of the correction device viewed from the front in correspondence with FIG. 5.

  DESCRIPTION OF EMBODIMENTS Hereinafter, a mode for carrying out the present invention (hereinafter referred to as an embodiment) will be described in detail with reference to the accompanying drawings. Note that the same number is assigned to the same element throughout the description of the embodiment.

(Overall configuration of the correction device 1)
First, the whole structure of the correction apparatus 1 is demonstrated with reference to FIG. Here, as shown in FIG. 1, the correction device 1 includes an upper jaw contact portion 10, a lower jaw contact portion 20, an expansion / contraction connection portion 30, an engagement wire 40, an upper inner wire 50, and a lower inner wire. 60 and an upper outer wire 70 are shown. Here, the inside refers to the lingual side.

  The maxillary abutment portion 10 is a portion that abuts on the inner surface of the upper jaw (the palate surrounded by the upper dentition UT (see FIG. 4)) when the correction device 1 is mounted in the oral cavity, and the shape of the inner surface of the upper jaw Is formed in a gentle mountain shape. The lower jaw contact portion 20 is a portion that comes into contact with the inner surface of the lower molar (inner side of the lower tooth row LT (see FIG. 5)) when the orthodontic appliance 1 is mounted in the oral cavity, and follows the shape of the inner surface of the lower jaw. Thus, it is formed in a wall shape.

  The expansion / contraction connection part 30 connects the upper jaw contact part 10 to the left upper jaw contact part 11 and the right upper jaw contact part 12 so that they can be expanded and contracted. The engagement wire 40 is attached to both side surfaces of the maxillary abutment portion 10 and is engaged with any molar tooth of the maxillary tooth row UT. The upper inner wire 50 is a wire located inside the maxillary dentition UT, and induces anterior growth of the maxillary dentition UT. The upper outer wire 70 is a wire located outside the maxillary dentition UT, and has a function of mainly eliminating lip pressure that attempts to inhibit the induction of forward growth, and retains the dentition after correction. It also has secondary functions. The lower inner wire 60 is a wire located inside the lower dentition LT and induces anterior growth of the lower dentition LT. The expansion / contraction coupling part 30, the engagement wire 40 and the upper inner wire 50 are embedded in the upper jaw contact part 10, and the lower inner wire 60 is embedded from the lower jaw contact part 20 to the upper jaw contact part 10.

  The upper jaw contact portion 10 and the lower jaw contact portion 20 are preferably made of resin from the viewpoints of ease of molding and compatibility with the growth of the user of the correction device 1. Resin materials are safe materials in that they have sufficient strength for orthodontic treatment and are softer than teeth, and above all, the low risk of damaging teeth is suitable for orthodontic treatment. The engagement wire 40, the upper inner wire 50, and the lower inner wire 60 can use known ones, but if the user has a metal allergy, it does not contain nickel or chromium that causes metal allergy. In addition to (Biodent's beta-titanium wire), it is preferable to use rubber metal (Ti-Nb alloy wire) or gold or white coated.

  Hereinafter, each element will be described in more detail.

(Upper jaw contact part 10)
As described above, the maxillary abutment portion 10 is a portion that abuts on the inner surface of the maxilla (the palate surrounded by the maxillary dentition UT (see FIG. 4)) when the correction device 1 is mounted in the oral cavity. Here, as shown in FIG.1 and FIG.2, the upper jaw contact part 10 of the aspect divided | segmented into the left upper jaw contact part 11 and the upper right jaw contact part 12 is shown.

  As shown in FIG. 2, the upper jaw contact portion 10 includes a left upper jaw contact portion 11 and an upper right jaw contact portion 12 which are divided into left and right, and the left upper jaw contact portion 11 and the upper right jaw contact portion 12 are The expansion / contraction connecting part 30 is connected so as to allow expansion / contraction. By connecting the left upper jaw contact portion 11 and the upper right jaw contact portion 12 so as to be expandable / contractible, the left upper jaw contact portion 11 and the upper right jaw contact portion according to the symptoms and growth of the user of the correction device 1. The twelve gaps G can be expanded outward and reduced inward.

  A specific aspect of the expansion / contraction connecting part 30 will be described. The expansion / contraction connection part 30 is connected to the gap G between the left upper jaw contact part 11 and the right upper jaw contact part 12 so as to be able to expand and contract both. As shown in FIG. 2, the expansion / contraction connecting portion 30 includes a screw shaft 31 that is reversely threaded on both left and right sides, guide shafts 32 and 32 that are located on both sides of the screw shaft 31, and a left upper jaw abutment. It is comprised from the holder 33 and 33 which were attached to the part 11 and the upper right jaw contact part 12, respectively.

  A through hole 34 is provided at the center of the screw shaft 31, and a rotation operation tool (not shown) is inserted into the through hole 34 to rotate the screw shaft 31. The gap G between the upper jaw contact portions 12 is enlarged or reduced. That is, when the through-hole 34 is rotated in one direction by the rotary operation tool, the left upper jaw contact portion 11 and the upper right jaw contact portion 12 move away from each other to enlarge the gap G between the two, and after the enlargement, they are opposite. When rotated in the direction, the left upper jaw contact portion 11 and the upper right jaw contact portion 12 can move in directions close to each other to reduce the gap G therebetween.

  The upper jaw contact portion 10 is provided on both sides of the left upper jaw contact portion 11 and the upper right jaw contact portion 12 for locking the left upper jaw contact portion 11 and the upper right jaw contact portion 12 to the upper teeth UT. A left engagement wire 41 and a right engagement wire 42 are provided.

  As shown in FIG. 1, the engagement wire 40 including the left engagement wire 41 and the right engagement wire 42 is formed in a substantially X shape in a side view, and any molar tooth ( Engaged with the back teeth). Taking the left engagement wire 41 as an example, the base 41b is fitted to the root of the molar tooth, and the distal end portion 41a is engaged with the boundary between the molar tooth and another adjacent tooth. Although the shape of the engagement wire 40 is not limited to that illustrated, the correction device 1 according to the present embodiment integrally forms the upper jaw contact portion 10 and the lower jaw contact portion 20. By making it X-shaped, the engagement with the maxillary tooth row UT can be made more reliable.

  On the front surfaces of the left upper jaw contact portion 11 and the upper right jaw contact portion 12, an upper inner wire 50 that guides the forward growth of the maxillary dentition UT is provided. The upper inner wire 50 includes a left upper inner wire 51 and an upper right inner wire 52. Each wire is fixed to only one of the left and right sides, and can cope with a case where the gap G between the left upper jaw contact portion 11 and the upper right jaw contact portion 12 is enlarged or reduced. That is, the upper left inner wire 51 and the upper right inner wire 52 can cope with expansion and contraction by passing each other as the gap G between the left upper jaw contact portion 11 and the upper right jaw contact portion 12 expands and contracts.

(Lower jaw contact part 20)
The lower jaw contact portion 20 is formed integrally with the upper jaw contact portion 10 and extends downward from the upper jaw contact portion 10. The lower jaw contact portion 20 includes a left lower jaw contact portion 21 and a right lower jaw that extend downward from both side surfaces of the upper jaw contact portion 10, that is, the side surfaces of the left upper jaw contact portion 11 and the right upper jaw contact portion 12, respectively. Contact portion 22. At this time, as shown in FIGS. 2 and 3, the lower jaw contact portion 20 considers the meshing of the upper jaw row UT and the lower jaw row LT, and is lower than the lower edge of the upper jaw contact portion 10. It extends from the position brought inward by the thickness corresponding to.

  The lower jaw contact portion 20 is configured to come into contact with the inner side (that is, the lingual side) of the molar teeth of the lower teeth row LT when the orthodontic appliance 1 is engaged in the oral cavity. It is possible to guide the position of the tongue to the inside of the lip, and to assist in acquiring a normal good tongue tongue.

  In the dental orthodontic apparatus 1 according to the present embodiment, the lower jaw contact portion 20 is formed integrally with the upper jaw contact portion 10 as described above, so that the user can use the upper teeth UT and lower jaw teeth. It is possible to more effectively achieve the meshing of the row LT and thus the correction of the maxillary and mandibular positions. Moreover, the correction | amendment apparatus 1 can be mounted | worn at once in the oral cavity.

  On the front surfaces of the left lower jaw contact portion 21 and the right lower jaw contact portion 22, a lower inner wire 60 that guides the forward growth of the lower jaw teeth row LT is provided. The lower inner wire 60 includes a lower left inner wire 61 and a lower right inner wire 62. Each wire is fixed to only one of the left and right sides, and can cope with a case where the gap G between the left upper jaw contact portion 11 and the upper right jaw contact portion 12 is enlarged or reduced. That is, the lower left inner wire 61 and the lower right inner wire 62 can cope with expansion / contraction by passing each other along with the expansion / contraction of the gap G between the left upper jaw contact portion 11 and the upper right jaw contact portion 12.

(How to use the correction device 1)
Next, the usage method of the correction apparatus 1 which concerns on this embodiment is demonstrated with reference to FIG.4 and FIG.5.

  4 and 5 show a state in which the orthodontic apparatus 1 is mounted at the stage where a child, who is a user, grows from a deciduous tooth to a permanent tooth. Here, there are twelve teeth each as a maxillary dentition UT and a mandibular dentition LT, that is, the maxillary dentition UT is a central incisor UT1, a side incisor UT2, a canine tooth UT3, a first molar UT4, The second molar UT5 and the first molar UT6, the lower dentition LT indicates the middle incisor LT1, the side incisor LT2, the deciduous tooth LT3, the first molar LT4, the second molar LT5 and the first molar LT6. ing.

  As shown in FIG. 4, when the user wears the orthodontic appliance 1 into the oral cavity, the left engagement wire 41 and the right engagement wire 42 provided on both side surfaces of the upper jaw contact portion 10 are connected to the upper teeth UT. The left and right second molar teeth UT5 are engaged. Then, the left upper jaw contact portion 11 and the upper right jaw contact portion 12 contact the inner side of the lower molar. The left lower jaw contact portion 21 and the right lower jaw contact portion 22 extend downward (upward in the drawing).

  When the user closes his / her mouth, as shown in FIG. 5, the left lower jaw contact portion 21 and the right lower jaw contact portion 22 automatically show the lower molar (up to the second molar LT5 in the figure). And abut the inside of those teeth.

(Modification)
Although the one aspect | mode of the correction apparatus 1 was demonstrated above, the correction apparatus 1 can be made into various aspects besides that. For example, FIG.6 and FIG.7 shows the modification of the correction apparatus 1 seen from the downward direction and the front. In this modification, an example is shown in which a parlay wire composed of a left lower outer wire 61a and a right lower outer wire 62a, which is used in a removable orthodontic treatment, is provided as the lower outer wire 60a. . This parlay wire may be detachably attached to the correction device 1. Further, in the modification, an example in which a left engagement portion 71 and a right engagement portion 72 are provided as part of the upper outer wire 70 is shown, and these include four front teeth (left and right central incisors) of the maxillary dentition UT. The main purpose is to move the UT1 and the side incisors UT2), and as a secondary purpose, the dentition after orthodontic treatment is retained.

(Effect of this embodiment)
The present inventor has arrived at the idea of the present embodiment as described above through clinical experience of more than 500 cases, and can achieve the following effects. That is, since the orthodontic apparatus 1 according to the present embodiment is configured as a vertically integrated type, there is very little pain when the mandibular dentition LT is enlarged, and as a result, the period required for the enlargement can be shortened. Since the correction device 1 is composed of one piece, there is an effect that the wearing and use are simplified. In using the straightening device 1, further effects can be obtained by closing the mouth and biting several times.

  As mentioned above, although this invention was demonstrated using embodiment, it cannot be overemphasized that the technical scope of this invention is not limited to the range as described in the said embodiment. It will be apparent to those skilled in the art that various modifications or improvements can be added to the above embodiment. Further, it is apparent from the scope of the claims that the embodiments added with such changes or improvements can be included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Correction apparatus 10 ... Upper jaw contact part 11 ... Left upper jaw contact part 12 ... Upper right jaw contact part 20 ... Lower jaw contact part 21 ... Left lower jaw contact part 22 ... Right lower jaw contact part 30 ... Expansion / contraction connection part 31 ... Screw shaft 32 ... Guide shaft 33 ... Holder 34 ... Through hole 40 ... Engagement wire 41 ... Left engagement wire 42 ... Right engagement wire 50 ... Upper inner wire 51 ... Left upper inner wire 52 ... Upper right inner wire 60 ... Lower inner wire 61 ... Lower left inner wire 62 ... Lower right inner wire 60a ... Lower inner wire (parlay wire)
61a ... Left lower inner wire (Parlay wire)
62a ... Lower right inner wire (parlay wire)
70 ... upper outer wire 71 ... left engagement part 72 ... right engagement part 73 ... retaining part G ... gap

Claims (5)

It is a dental orthodontic device that aims to improve jaw growth deficiency,
A maxillary abutment portion that abuts the inner surface of the maxilla,
A lower jaw contact portion that is molded integrally with the upper jaw contact portion and contacts the inner surface of the lower jaw;
An orthodontic device comprising: an engagement wire attached to both side surfaces of the upper jaw contact portion and engaged with any molar tooth of the upper jaw dentition.   The correction apparatus according to claim 1, wherein the lower jaw contact portion includes a left lower jaw contact portion and a right lower jaw contact portion that respectively extend downward from both side surfaces of the upper jaw contact portion.   The upper jaw contact portion includes a left upper jaw contact portion and an upper right jaw contact portion, and further includes an expansion / contraction connection portion that connects the left upper jaw contact portion and the upper right jaw contact portion so as to allow expansion / contraction. The correction apparatus according to claim 1 or 2.   The correction device according to any one of claims 1 to 3, wherein the engagement wire is formed in a substantially X shape in a side view.   An upper inner wire attached to the front surface of the upper jaw contact portion and applied along the inner surface of the upper jaw dentition, and a lower portion attached to the front surface of the lower jaw contact portion and applied along the inner surface of the lower jaw dentition The correction device according to claim 1, further comprising an inner wire.

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