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Construction method and system of retention accessory and bracket-free invisible orthodontic appliance

A construction method and appliance technology, applied in medical science, dental prosthetics, orthodontics, etc., can solve problems such as insufficient retention force and easy fall-off of the appliance, and achieve the effect of solving the problem of easy fall-off and improving the retention force

Active Publication Date: 2021-09-24
WUXI EA MEDICAL INSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a construction method and construction system of a retaining accessory, a computer-readable storage medium and an invisible orthodontic appliance without brackets, wherein the accessory can ensure the retaining force of the appliance, and solve the problem of the prior art due to the attachment of the accessory. Insufficient retaining force of the aligner leads to the problem that the aligner is easy to fall off

Method used

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  • Construction method and system of retention accessory and bracket-free invisible orthodontic appliance
  • Construction method and system of retention accessory and bracket-free invisible orthodontic appliance
  • Construction method and system of retention accessory and bracket-free invisible orthodontic appliance

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Embodiment 1

[0070] ginseng Figure 1 to Figure 8b , this embodiment discloses a construction method of a retention attachment, which is used to construct the retention attachment in the invisible orthodontic device without brackets at the design stage, especially the retention surface 12 of the retention attachment And the construction of the bottom surface; and, this embodiment also discloses the retention attachment 10 constructed by the construction method, and further discloses the invisible orthodontic appliance without brackets using the retention attachment 10 .

[0071] ginseng figure 1 , the construction method includes the following steps.

[0072] Step S101, obtaining a dentition model and a shell-shaped appliance model matching the dentition model.

[0073] This step, combined with figure 2 , for example, the dentition model 100 and the shell-shaped appliance model 200 are obtained.

[0074] Wherein, the dentition model 100 can be any one of the maxillary dentition model ...

Embodiment 2

[0168] ginseng Figure 9a to Figure 9c , which illustrates a preferred embodiment 2 of the present invention, which differs from the foregoing embodiment 1 only in that: the distance between the distal retaining surface 221, the corner retaining surface 222, the gingival retaining surface 223 and the bottom surface 21 The included angle is different from that attached in Example 1 Figure 7a hint. The following only introduces the technical content related to this difference point, and the rest of the technical content that is the same as that of Embodiment 1 will not be repeated.

[0169] Attached in the foregoing embodiment 1 Figure 7a Schematically, the distal retention surface 121 , the corner retention surface 122 and the gingival retention surface 123 are all perpendicular to the bottom surface 11 , that is, the angle k1 between the retention surface 12 and the bottom surface 11 is 90°.

[0170] In this embodiment 2, the included angles between the distal retention s...

Embodiment 3

[0172] First, see Figure 10a to Figure 10b , illustrates a preferred embodiment 3 of the present invention, which differs from the foregoing embodiment 1 only in the configurations of the distal retaining surface 521 and the gingival retaining surface 523 . The following only introduces the technical content related to this difference point, and the rest of the technical content that is the same as that of Embodiment 1 will not be repeated.

[0173] In Embodiment 1 described above, the distal retention surface 121 and the gingival retention surface 123 are both flat; and, the intersecting line P1-P2 between the distal retention surface 121 and the bottom surface 11, and the gingival retention surface The intersection lines P3 - P4 between the bit surface 123 and the bottom surface 11 are all straight lines.

[0174] And in the present embodiment 3, refer to Figure 10a to Figure 10b , the distal retention surface 521 and the gingival retention surface 123 are respectively d...

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Abstract

The invention discloses a construction method and system of a retention accessory and a bracket-free invisible orthodontic appliance. The construction method comprises the following steps: acquiring a dentition model and a shell-shaped appliance model matched with the dentition model; selecting an installation point in an accessory installation selectable area on the dentition model, and constructing the retention accessory based on the installation point, specifically, taking off the shell-shaped appliance model worn on the dentition model from the dentition model, and obtaining a movement track of a reference point, corresponding to the installation point, of the shell-shaped appliance model; and establishing a tangent line of a key position point in the movement track, or establishing a direct connection line of two key position points in the movement track, and constructing the retention accessory according to a predetermined rule based on the tangent line or the direct connection line. Therefore, the retention force of the accessory to the appliance is improved, and the appliance is prevented from accidentally falling off.

Description

technical field [0001] The invention relates to a construction method and construction system of a retention accessory, a computer-readable storage medium, and a bracketless invisible orthodontic appliance, belonging to the technical field of orthodontics. Background technique [0002] Bracketless invisible orthodontics is becoming more and more popular because of its advantages of easy removal and wearing, comfortable and beautiful appearance, clinical ease of use, and good oral hygiene cleaning. With the widespread use of bracketless clear aligners, some shortcomings are gradually exposed in the face of many patients with different oral conditions. [0003] Among them, the retention of the invisible aligner without brackets, in addition to relying on the friction between the aligner and the teeth, mainly depends on the attachments bonded to the teeth. The existing accessories cannot produce enough retaining force for the clear aligner without brackets, causing the clear a...

Claims

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Application Information

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IPC IPC(8): A61C7/00A61C7/08
CPCA61C7/00A61C7/08A61C7/002A61C2007/004
Inventor 郑轶刊侯俊祥
Owner WUXI EA MEDICAL INSTR TECH
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