A wire with a curve is provided to eliminate the demerits of an unmass correction (the tendency to incline lingually during the centrifugal movement of six anterior teeth).
By incorporating a 20° upward curve in the upper jaw and a 20° downward curve in the lower jaw into the wire design for the amass correction treatment, the issue of excessive lingual inclination is addressed, resulting in enhanced treatment efficiency and reduced operator burden.
Patent Information
- Application Number
- JP2024004418U
- Authority / Receiving Office
- JP · JP
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-06-11
- Estimated Expiration
- 2034-12-12
AI Technical Summary
The amass correction treatment method tends to cause excessive lingual inclination during the centrifugal movement of the six anterior teeth, which can lead to suboptimal treatment outcomes, prolonged treatment periods, and increased operator burden.
A wire with a specific curve is designed for the upper and lower jaws, where the curve in the upper jaw inclines 20° upward from the centrifugal side of the canine tooth, and the curve in the lower jaw inclines 20° downward from the same side, thereby preventing excessive lingual inclination.
This design effectively prevents excessive lingual inclination, allowing for improved treatment outcomes, reduced treatment duration, and decreased operator workload by maximizing the benefits of the amass correction treatment.
Smart Images

Figure 0003251578000001_ABST
Abstract
Description
Technical Field
[0001] Design a wire with a curve to eliminate the demerit of an amass correction (tendency to incline lingually during the centrifugal movement of the six anterior teeth).
Background Art
[0002] By designing a wire with a curve for amass correction treatment, good treatment progress and results can be obtained without excessive lingual inclination during the centrifugal movement of the six anterior teeth.
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Patent Document 2
Non-Patent Documents
[0004]
Non-Patent Document 1
Non-Patent Document 2
Summary of the Invention
Problems to be Solved by the Invention
Means for Solving the Problems
Effects of the Invention
Brief Description of the Drawings
Figure 1
Figure 2
Modes for Carrying Out the Invention
Examples
Industrial Applicability
Explanation of Reference Numerals
Claims
[Claim 1] In orthodontic treatments for lack of space, the unmass orthodontic treatment method has been considered to be better than the treatment method of distalizing the 6 anterior teeth together, which distalizes the 2 left and right canines first and the 4 left and right central incisors and lateral incisors, because it has fewer posterior anchorages, the molars move mesial and the amount of distalization of the anterior teeth is smaller. However, this method of distalizing the canines first requires a strong traction force to separate the interdental horizontal fibers that connect the teeth, and it is thought that from the perspective of differential orthodontic force, this strong traction force moves the molars forward without distalizing the canines. In contrast, the unmass orthodontic treatment method distalizes the 6 anterior teeth together, so there is no need to separate the interdental horizontal fibers, and the interdental horizontal fibers themselves have the power to connect the teeth, so it is thought that treatment can be performed with weak traction force. However, the unmass orthodontic treatment method has the disadvantage that the 6 anterior teeth tilt too much to the tongue side during distalization. To prevent this, the wire is given a curve that inclines 20 degrees upward from the distal canine to the ground for the upper jaw, and a curve that inclines 20 degrees downward from the distal canine to the ground for the lower jaw. In order to eliminate the disadvantages of unmasked orthodontics, a curved wire is devised.