Orthodontic Treatment Planning via Segmented Tooth Movement Control

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Solution Overview

Problem

Existing orthodontic treatment planning methods lack precision in controlling tooth movements, often leading to collisions and discomfort due to simultaneous execution of multiple movement components, which can result in suboptimal treatment outcomes.

Innovation Solution

The method involves determining tooth movements as a series of distinct components such as translation, tipping, torquing, rotation, extrusion, and intrusion, allowing each component to be performed separately with specific speed and order control, enabling more accurate trajectory planning and appliance configuration for improved comfort and efficacy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If multiple tooth movement components are executed simultaneously, then treatment efficiency is improved, but collision risk and patient comfort deteriorate

Engineering Contradiction:
Improvetreatment efficiencyVSAvoidcollision risk
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the tooth movement into distinct components (translation, tipping, torquing, rotation, extrusion, intrusion) and executes them sequentially rather than simultaneously. This segmentation allows precise control over each movement phase, preventing collisions between teeth while maintaining treatment effectiveness through structured progression.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system performs preliminary actions by planning and executing movement components in a predetermined sequence before proceeding to the next phase. Each movement component is completed and stabilized before initiating the subsequent component, ensuring safe transitions and avoiding harmful collisions during the orthodontic treatment process.

Inventive Principle:
Principle #10Preliminary action

2Duration of action of moving object

If multiple tooth movement components are executed simultaneously, then treatment duration is reduced, but treatment safety deteriorates

Engineering Contradiction:
Improvetreatment durationVSAvoidtreatment safety
Core Design Contradiction:
Duration of action of moving objectVSReliability

Solution Approach 1:

By dividing the treatment into segmented movement components with controlled sequencing, the patent maintains treatment safety while managing treatment duration. Each segment is executed with controlled velocity and timing, ensuring safe force application and preventing collisions, thereby maintaining reliability without unnecessarily extending the overall treatment period.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system dynamically controls the velocity and timing of each movement component based on real-time conditions and treatment progress. This dynamic adjustment allows optimization of treatment duration while maintaining safety standards, as the system can accelerate or decelerate specific movements to balance efficiency with patient safety.

Inventive Principle:
Principle #15Dynamics

3Productivity

If tooth movement components are executed with high velocity, then treatment efficiency is improved, but patient comfort and safety deteriorate

Engineering Contradiction:
Improvetreatment efficiencyVSAvoidpatient comfort
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent employs dynamic velocity control for each tooth movement component, adjusting the speed based on the specific movement type, tooth position, and treatment phase. This dynamic approach allows high velocity when safe and appropriate, while reducing velocity to maintain patient comfort and prevent damage during critical phases, thereby balancing efficiency with comfort.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the velocity parameter of tooth movement components based on predefined criteria and real-time monitoring. By adjusting velocity as a variable parameter rather than maintaining a constant high speed, the patent optimizes treatment efficiency while ensuring patient comfort and safety are not compromised during any specific movement phase.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11766312B1Systems and methods for determining an orthodontic treatment
Publication Date: 2023.09.26 OXILIO LTD
  • US11766312B1 patent drawing
  • US11766312B1 patent drawing
  • US11766312B1 patent drawing

AI summary

A method and a system for determining an orthodontic treatment for a subject are provided. The method comprises: obtaining an indication of a current and target position of the given tooth; determining a tooth movement trajectory of the given tooth during the orthodontic treatment, the tooth trajectory defining a path of the given tooth from the current to the target position, the determining the tooth trajectory comprising determining a movement of the given tooth along the tooth trajectory by: determining, a plurality of movement components for the given tooth to be performed to displace from the current to the target position; obtaining, for a given one of the plurality of movement components, a respective magnitude value, the respective magnitude value being indicative of a path length at which the given tooth is to displace towards the target position thereof performing the given one of the plurality of movement components.