JP2015150179A - orthodontic appliance - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a detachable orthodontic appliance that imparts a persistent proper force to each of dentitions of upper and lower jaws from a deciduous dentition period to the formation and completion of permanent dentitions.SOLUTION: An orthodontic appliance is characterized in that shape memory alloys 3 are embedded in an outer peripheral wall 2, an inner peripheral wall 4 and an occlusal surface 5 of each of upper and lower jaws of a U-shaped mouthpiece 1 formed from an elastic material or a flexible material, respectively.

Description

  The present invention relates to a detachable orthodontic apparatus that applies a continuous and appropriate force to each of upper and lower jaw dentitions from the deciduous dentition stage to the formation and completion of permanent dentitions.

  In recent years, aesthetic desires for the body such as posture and beauty are rapidly increasing due to the improvement of living standards. As a major factor, facial features, especially teeth and attention are gathered. To complete the alignment of teeth, it takes a long period of time, up to more than a decade, until adulthood, during which various forces act on the upper and lower jaw dentition, and have a great influence on the teeth.

  The majority of conventional orthodontic treatments are those in which the multi-bracket device is placed in the oral cavity, which is particularly sensitive even in vivo for a long period of time. In addition, it is obliged to regularly visit a dental clinic during the treatment period, which is a very heavy burden on the user.

  Patent Document 1 discloses an orthodontic apparatus called a bracket type. Multi-bracket type orthodontic appliances use, for example, the restoring force of a wire that is bonded to the cheek side of each of the maxillary and mandibular dentitions. is there.

  Furthermore, biologically friendly muscle function therapy is promoted by enthusiastic orthodontic dentists, etc., but it is difficult to recognize the actual feeling to the trainees, so the effect cannot be expected, and eventually orthodontic treatment with a multi-bracket device is the most .

Therefore, development of a mouthpiece-type orthodontic treatment apparatus as a device other than the multi-bracket device is also underway. The treatment device is a custom-made hard synthetic resin mouse created so that it can be adapted to the dentition modified to be the ideal dentition after treatment assumed from the user's current dentition The piece is forcibly attached to the user's dentition. However, since the mouthpiece is hard, the user feels uncomfortable and painful at the time of wearing, and the device must be made frequently.

  Patent Document 2 discloses an orthodontic apparatus called a mouthpiece type. The mouthpiece type orthodontic apparatus disclosed in Patent Document 2 is formed of a shape memory plastic that deforms a molded recess into a normal maxillary and mandibular dentition at the user's body temperature (around 37 ° C.). .

JP 60-234656 A (Metal Bracket Type) JP 63-011148 A (Mouthpiece type)

   The orthodontic device with a multi-bracket device is worn in the sensitive oral cavity for a long time, has a strong foreign body sensation and interferes with the normal muscle activity of the oral muscle group, and after the treatment, The so-called “return” phenomenon is likely to occur. In addition, the user does not tend to desire treatment with the multi-bracket device again for improvement such as “returning”.

  In addition, in the case of muscular function therapy that is gentle on the living body, the outcome of treatment is highly dependent on the skill of the surgeon, and the actual effect of the user and guardian is not understood. In many cases.

  Furthermore, a custom-made hard synthetic resin mouthpiece created so that it can be adapted to the dentition modified to be the ideal dentition after treatment assumed from the user's current dentition is Because of the hard material, the user feels uncomfortable and painful at the time of wearing, and the device must be made frequently. In view of the state of the prior art as described above, a detachable orthodontic apparatus that can easily improve the dentition is desired.

An object of the present invention is to provide a detachable orthodontic apparatus which applies a continuous and appropriate force to each of the upper and lower jaw dentitions from the deciduous dentition stage to the formation and completion of the permanent dentition.

  The detachable orthodontic apparatus of the present invention has various upper and lower jaw arch shapes for each user, but the U-shaped mouthpiece 1 formed of an elastic material or a flexible material has an appropriate force and heat. Can be easily deformed and shaped to fit the upper and lower jaw arches for each subject.

The detachable orthodontic appliance of the present invention continuously generates an appropriate restoring force that can be restored to the ideal upper and lower jaw arches on the outer peripheral wall, inner peripheral wall and occlusal surface formed on the ideal upper and lower jaw arches. The shape memory alloy to be made is embedded.

According to the above configuration, the orthodontic appliance can be easily customized, and it is a detachable orthodontic device in which appropriate pressure is applied to each tooth constituting the upper and lower jaw dentitions regardless of the skill level of the operator, so it is easy to use. . In addition, the mild and continuous restoring force due to the physical properties of the shape memory alloy formed on the ideal upper and lower jaw arches is less uncomfortable for the user. In addition, due to the restoring force of the shape memory alloy from each of the three surfaces of the outer peripheral wall, the inner peripheral wall and the occlusal surface, it is possible to expect a stable, reliable and mild correction force in the upper and lower jaw dentition.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. The detachable orthodontic apparatus of the present invention has ideal upper and lower jaw arches on the outer peripheral wall 2, inner peripheral wall 4 and occlusal surface 5 formed on ideal upper and lower jaw arches as seen in FIGS. 1 to 4. The shape memory alloy 3 that can be restored to the surface and generates a suitable restoring force continuously is embedded.

  Since the removable orthodontic apparatus of the present invention is inserted into the oral cavity, which is a very delicate sensory part, the flexibility of the elastic material or flexible material is softened and deformed at 60 degrees or less, and 40 degrees or less. Physical properties that do not deform are required.

With the above structure, the removable orthodontic appliance transformed into the user's upper and lower jaw arch is made of the shape memory alloy formed on the ideal upper and lower jaw arch by the outer peripheral wall 2, the inner peripheral wall 4 and the occlusal surface 5, respectively. Improvement of the arrangement of upper and lower jaw dentition can be expected by utilizing the restoring force of the shape memory alloy embedded in the upper and lower jaws.

  The detachable orthodontic apparatus of the present invention is provided with a groove so as to be a guide for attachment in the middle of each upper and lower jaw so that the user can attach more accurately to the upper and lower jaw dentition.

  In addition, since proper occlusal pressure is required for tooth extraction, it is desirable that the mouthpiece occlusal surface of each of the upper and lower jaws has an appropriate thickness so that appropriate occlusal pressure can be applied.

Orthodontic appliance maxillary posterior view

Orthodontic appliance upper jaw lower view

Orthodontic appliance maxillary cross section

Orthodontic appliance mandibular posterior view

1 U-shaped mouthpiece 2 Outer wall 3 Shape memory alloy 4 Inner wall 5 Occlusal surface 6 Groove 7 Projection

Claims (6)

  An orthodontic apparatus characterized in that a shape memory alloy 3 is embedded in an outer peripheral wall 2 of each of upper and lower jaws of a U-shaped mouthpiece 1 formed of an elastic material or a flexible material.   2. The orthodontic appliance according to claim 1, wherein the shape memory alloy 3 is embedded in the inner peripheral wall 4 of each of the upper and lower jaws of the U-shaped mouthpiece 1 made of an elastic material or a flexible material.   3. The dentistry according to claim 1 or 2, wherein the shape memory alloy 3 is embedded in the occlusal surfaces 5 of the upper and lower jaws of the U-shaped mouthpiece 1 made of an elastic material or a flexible material. Straightening device. The orthodontic appliance according to any one of claims 1 to 3, wherein the shape memory alloy 3 is formed on the outer peripheral wall 2, the inner peripheral wall 4 and the occlusal surface 5 of an ideal upper and lower jaw arch. The groove | channel 6 used as the pointer | guide of mounting | wearing is provided in the center of the outer peripheral wall 2 of each upper and lower jaw of the U-shaped mouthpiece 1 formed from the elastic material or the flexible material, The 1-4 characterized by the above-mentioned. An orthodontic appliance according to any one of the above. 6. A projection 7 for guiding the tongue apex is imparted to the inner peripheral wall 4 of the upper jaw of the U-shaped mouthpiece 1 made of an elastic material or a flexible material. Orthodontic appliance according to the description.