Digital Arch Wire Insertion Conflict Simulation
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Solution Overview
Problem
Current orthodontic treatment planning lacks tools to check if a target virtual orthodontic arch wire can be inserted into virtual brackets on a patient's malocclusion dentition without conflicts, leading to potential inefficiencies and increased treatment time and cost if conflicts arise.
Innovation Solution
A method and apparatus for digitally simulating the insertion of a customized virtual arch wire into virtual brackets, evaluating the insertion quality by applying incremental force and optimizing straight segment lengths to prevent collisions, and redesigning the arch wire if conflicts persist.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a customized arch wire is designed with complex bends and twists to move teeth in desired directions, then the effectiveness of the force system is improved, but the difficulty of detecting and measuring insertion conflicts increases
Solution Approach 1:
The system performs preliminary digital simulation of arch wire insertion into virtual brackets before actual manufacturing. This preliminary action identifies potential insertion conflicts and allows redesign of the arch wire geometry to ensure proper fit, thereby maintaining force system effectiveness while enabling early detection of insertion issues.
Solution Approach 2:
The invention creates a virtual copy of the arch wire and brackets in a digital environment. This virtual model allows for repeated testing and evaluation of insertion scenarios without affecting the physical components, enabling thorough detection of insertion conflicts while preserving the integrity of the designed force system.
2Adaptability or versatility
If manual bending of arch wire is performed to customize it for each patient, then the adaptability to individual patient needs is improved, but the loss of time increases
Solution Approach 1:
The system replaces manual mechanical bending with computer-based design and simulation. The software automatically generates customized arch wire geometries based on patient-specific dental models and simulates insertion to verify effectiveness, eliminating time-consuming manual bending while maintaining full customization capability.
Solution Approach 2:
The invention allows for digital modification of arch wire parameters such as bend angles, twist directions, and segment lengths through software controls. These parameter changes enable rapid customization of arch wires to meet individual patient requirements without the time investment required for manual bending adjustments.
3Ease of operation
If the arch wire is designed with straight segments longer than bracket slots to provide sliding room, then the ease of operation during tooth movement is improved, but the likelihood of bent segments colliding with bracket slots increases
Solution Approach 1:
The system performs preliminary simulation to identify potential collision zones between bent segments and bracket slots. By detecting these conflicts before manufacturing, the design can be adjusted to prevent collisions while maintaining adequate sliding room in straight segments, thereby eliminating harmful factors before they occur during actual treatment.
Solution Approach 2:
The invention simulates the dynamic insertion process of the arch wire into brackets, evaluating how the wire deforms and moves during insertion. This dynamic analysis allows for optimization of the balance between straight segment length (providing sliding room) and bent segment positioning (avoiding collisions), ensuring ease of operation without harmful interactions.
Data Source
AI summary
A method and apparatus is provided for digitally checking the insertion quality of a target customized virtual arch wire designed during treatment planning prior to actually manufacturing the target arch wire. The method includes the steps of digitally simulating the insertion of the customized target virtual arch wire into the virtual brackets placed up on virtual teeth of a patient in an initial state of interest for checking if the arch wire could be inserted into the virtual brackets without conflicts or collisions. The initial state may be a malocclusion state or any intermediate treatment state of the patient. In the event the target virtual arch wire would cause conflicts, then the simulation optimizes the arch wire design in an attempt to eliminate the conflicts. In another aspect, a method is provided for selecting the recommended starting point for inserting the customized arch wire in the brackets placed on the dentition of the patient in the initial state.