Transparent Orthodontic Attachments for Precise Force Transfer

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Solution Overview

Problem

Existing methods for designing transparent orthodontic appliances require significant manual effort and do not effectively guide orthodontic force, limiting efficiency and increasing manufacturing time and cost.

Innovation Solution

A computer-based method for designing transparent orthodontic appliances and attachments that optimize attachment placement and inner appliance shape to enhance orthodontic force transmission, using 3D printing for efficient manufacturing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If manual manufacturing methods are used for transparent orthodontic appliances, then flexibility in design is maintained, but manufacturing time and effort increase significantly

Engineering Contradiction:
Improvemanufacturing efficiencyVSAvoidmanufacturing time
Core Design Contradiction:
Ease of manufactureVSLoss of time

Solution Approach 1:

The patent replaces manual mechanical manufacturing with computer-based automated design and manufacturing systems. The computer automatically generates attachment designs, determines optimal placement positions, and guides the manufacturing process, eliminating manual drafting and measurement while maintaining design flexibility through software-based parametric modeling.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent utilizes parameter-based design where attachment dimensions, positions, and geometries are defined as adjustable parameters in the computer system. This allows rapid modification of design parameters without restarting the entire design process, enabling efficient iteration and optimization while maintaining ease of manufacture through standardized parameter sets.

Inventive Principle:
Principle #35Parameter changes

2Reliability

If attachments are designed without specific shape optimization, then design simplicity is maintained, but orthodontic force effectiveness is reduced

Engineering Contradiction:
Improveorthodontic force effectivenessVSAvoidattachment design complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent performs preliminary computer-based analysis and optimization of attachment shapes before manufacturing. The system pre-calculates optimal attachment geometries based on target tooth positions and force requirements, generating ready-to-manufacture designs that ensure force effectiveness without requiring complex manual iterations during the manufacturing phase.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The patent uses computer-generated digital models and virtual prototypes to represent and optimize attachment designs before physical manufacturing. The digital copies allow for virtual testing and optimization of various attachment shapes and configurations, ensuring force effectiveness is achieved through simulated performance evaluation rather than trial-and-error physical prototyping.

Inventive Principle:
Principle #26Copying

Data Source

PatentEP4706587A1Design method of transparent orthodontic device and attachment for orthodontics
Publication Date: 2026.03.11 ODS CO LTD
  • EP4706587A1 patent drawingFigure 1
  • EP4706587A1 patent drawingFigure 2
  • EP4706587A1 patent drawingFigure 3~4

AI summary

The method for designing a transparent orthodontic appliance and attachment for tooth alignment according to the present invention has been devised to solve the above technical problems. It is a method for designing an orthodontic appliance using a computer, comprising: a step (S01) of designing the shape of an attachment to be affixed to the surface of a tooth model; a step (S02) of designing the inner surface shape of the transparent orthodontic appliance corresponding to the attachment designed in step S01; and a step (S03) of outputting the transparent orthodontic appliance by means of a 3D printer. The attachment comprises: two pressure surfaces (101) formed to face each other; two inclined surfaces (201) formed to be inclined toward each other while contacting the two pressure surfaces (101); a top surface (301) contacting the edges of the two pressure surfaces (101) and the two inclined surfaces (201); and an attachment surface (401) affixed to the surface of a tooth. This configuration serves as the technical means for solving the problem.