Orthodontic Bracket With Elastic Baffle Plate For Torque Control
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Solution Overview
Problem
Current orthodontic self-ligating bracket systems face challenges in achieving precise, safe, and efficient control of tooth movement, particularly during incisor adduction and gap closure, due to issues with torque control, stress concentration, and excessive friction forces, which can lead to side effects like root resorption and overbite.
Innovation Solution
The orthodontic self-ligating bracket system incorporates a design with elastic baffle plates and notched brackets to manage orthodontic forces differently across incisors, canines, and premolars, reducing friction and stress through adjustable notches and clearances, allowing for precise torque application and minimizing unnecessary tooth movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If torque is increased to eliminate clearance between incisor bracket groove and arch wire, then precise control of tooth movement is improved, but stress concentration in apical area causes root resorption or shortening
Solution Approach 1:
The bracket groove is segmented into a main groove and an auxiliary groove, allowing the arch wire to engage differently in each groove to achieve precise clearance control without excessive torque
Solution Approach 2:
A torque control element is introduced as an intermediary component between the arch wire and the bracket, enabling precise torque application and clearance control while distributing stress to prevent root resorption
2Productivity
If orthodontic force is increased to overcome friction force between rocking chair arch wire and bracket groove, then gap closure efficiency is improved, but displacement of other teeth and periodontal destruction occur
Solution Approach 1:
The groove system is divided into main and auxiliary grooves, allowing the rocking chair arch wire to engage in the auxiliary groove with reduced friction, enabling gap closure without excessive force that would displace other teeth
Solution Approach 2:
The friction coefficient between the arch wire and bracket is changed by modifying the groove geometry and adding elastic baffle plates, reducing the orthodontic force needed for gap closure and preventing periodontal damage
3Force
If elastic baffle plate is added to reduce friction force, then orthodontic force requirement is reduced, but device complexity increases
Solution Approach 1:
An elastic baffle plate is added to the bracket structure to reduce friction between the arch wire and groove, allowing effective gap closure with lower orthodontic force while maintaining manageable device complexity through the use of a simple elastic component
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This design enables precise control of tooth movement, reduces stress on the apical area, prevents overbite and anchorage loss, and minimizes unnecessary tooth displacement, enhancing the efficacy and stability of orthodontic treatment while reducing the risk of periodontal damage.
Implementation Method 1
an elastic baffle plate is arranged between the main groove and the auxiliary groove
Data Source
AI summary
An orthodontic self-ligating bracket system with an open auxiliary groove, and a self-ligating bracket. The system includes brackets, wherein each bracket includes a main groove and auxiliary groove, and an elastic baffle plate is between the main and auxiliary grooves; the brackets include first, second and third brackets. The first bracket is arranged on an incisor, the second bracket is arranged on a canine, the third bracket is arranged on a premolar, and the elastic baffle plates of the first bracket, the second bracket and the third bracket are ingeniously arranged, such that an arch wire of the bracket system generates different orthodontic forces at the positions corresponding to different brackets.