A precursor to a jaw position correction device with facial appearance improvement function.

Abstract

We provide a jaw position correction device that reduces the labor required for on-site adjustments. [Solution] A prototype of a jaw position correction device is used, comprising a lateral dentition arrangement section, a first pressing force generating section, a second pressing force generating section, and a resultant force transmission section, wherein the lateral dentition arrangement section is positioned along the palatal side of the maxillary dentition in the region corresponding to the longest part from the canine to the second premolar in the right and left maxillary dentition of the wearer (patient) when fitted, the first pressing force generating section includes a pressing force transmission section and a pressing force source near the hard palate, and is connected to the right and left lateral dentition arrangement sections, the second pressing force generating section is located at the connection point between the right and left lateral dentition arrangement sections and the right and left first pressing force transmission sections, and generates a force as the posterior angle formed by the connection point tends to widen as the second pressing force, and the resultant force transmission section includes a bent redundant section connected from the distal end of the lateral dentition arrangement section, and does not have a fitting and fixing section.

Claims

1. A prototype of a part of a jaw position correction appliance, which is attached to the maxilla, either individually or as a set, and is equipped with a lateral dental arch arrangement part, a first pressing force generating part, a second pressing force generating part, and a resultant force transmission part; (1) The above-mentioned lateral dental arch placement portion is positioned along the palatal side of the maxillary dentition in the left and right maxillary dentition of the wearer, in a region where the longest portion extends from the mesial interproximal surface of the canine tooth to the distal interproximal surface of the second premolar, and the shortest portion extends from the distal interproximal surface of the first premolar to the distal crown bulge of the second premolar; (2) The first pressing force generating portion is continuous with or connected to the right and left lateral dental arch arrangement portions at one end and includes (a) a first pressing force transmission portion that intersects with a region near a line projected onto the midline of the hard palate, which is located higher in the oral cavity than the cervical region of the area from the canine to the second premolar, or (b) a first pressing force source that intersects with the first pressing force transmission portion and is continuous with or connected to the aforementioned region; (3) The first pressing force generating unit can generate a first pressing force in the orthodontic appliance that laterally expands the maxillary dentition or maxillary teeth in a region corresponding to the longest range from the mesial interproximal surface of the canine to the distal interproximal surface of the second premolar, and the shortest range from the distal interproximal surface of the first premolar to the distal crown bulge of the second premolar; (4) The second pressing force generating part is located in the continuous or connecting part between the right and left lateral dental arch arrangement parts and one end of the right and left first pressing force transmitting parts, and the force that causes the posterior angle formed by the continuous or connecting part to widen can be generated as a second pressing force in the orthodontic appliance; (5) The combined force transmission section includes, on both the left and right sides, or either side, a bent redundant section of elastic wire, one end of which is continuous with or connected to the distal ends of the left and right lateral dental arch arrangement sections, and which is arranged along the region from the palatal cervical to the root of the wearer; A precursor to a jaw position orthodontic appliance, which does not have a mounting and fixing portion in the combined force transmission portion, and which satisfies the conditions of (1) to (5) above, wherein the lateral dentition arrangement portion, the first pressing force generating portion, the second pressing force generating portion, and the combined force transmission portion exist as substantially the same planar structure, or as a preliminary three-dimensional structure to the three-dimensional structure of the jaw position orthodontic appliance.

2. The precursor of the jaw position correction appliance according to claim 1, wherein the region in the left and right maxillary dentitions where the lateral dentition arrangement portion is positioned corresponds to the region from the crown bulge of the canine tooth to the crown bulge of the second premolar, or the region from the crown bulge of the first premolar to the crown bulge of the second premolar.

3. The prototype of the jaw position correction device according to claim 1, wherein the highest position of the first pressing force generating part is in contact with or close to the vicinity of the midline of the wearer's hard palate.

4. A precursor to a part of a jaw position correction device according to claim 1, wherein the pressing force generated in the first pressing force source is the stress on elastic deformation in a member continuous with or connected to the other end of the first pressing force transmission part.

5. The stress on elastic deformation is the stress caused by the narrowing of the gap in the open portion on one side of a linear member having an open portion on either the anterior or posterior side that is substantially symmetrical with respect to the midline, and the other side having an encircling shape, as described in claim 4, for the part of a jaw position correction device.

6. The precursor of a part of a jaw position correction device according to claim 5, wherein one side is the anterior side and the other side is the posterior side.

7. The force generated in the second pressing force generating section, which causes the angle to widen backward, is a stress against elastic deformation, a precursor to the part of the jaw position correction device according to claim 1.

8. A precursor to a part of a jaw position correction device according to any one of claims 1 to 7, wherein both or either of the lateral dentition arrangement portion and the first pressing force transmission portion are made of elastic wire.

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