Pulsatile Orthodontic Device with Precision Vibration Control
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Solution Overview
Problem
Current orthodontic treatments using static forces are uncomfortable, aesthetically unpleasing, and lengthy, with limited effectiveness in addressing complex malocclusions, and existing vibrating devices lack precision and comfort in delivering cyclic forces for accelerated tooth movement.
Innovation Solution
An orthodontic appliance with an extraoral vibratory source and an intraoral bite plate that uses a processor to control and adjust vibration frequency and force, providing a consistent and comfortable cyclic force between 20-40 Hz and 0.1-0.5 N, with a mechanism for monitoring and improving patient compliance through data capture and feedback.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If static mechanical force is used for orthodontic treatment, then bone remodeling occurs, but treatment time is lengthy (24 months average)
Solution Approach 1:
The patent applies periodic pulsatile forces (0.5-5 Hz frequency) instead of continuous static force. The device delivers cyclic compression and decompression phases to the periodontal ligament, creating oscillating mechanical stimulation that accelerates bone remodeling and tooth movement, reducing treatment time from 24 months to potentially half that duration.
Solution Approach 2:
The invention transitions from static orthodontic force application to dynamic pulsatile force delivery. The system uses a motor-driven mechanism with variable frequency control to deliver time-varying mechanical stimuli that mimic physiological loading patterns, enhancing osteoblastic and osteoclastic activity for faster bone turnover and tooth movement.
2Ease of operation
If conventional orthodontic appliances are used, then teeth are realigned, but patient comfort is reduced due to discomfort and pain
Solution Approach 1:
The pulsatile loading pattern with rest periods between compression phases reduces continuous stress on the periodontal ligament and bone. The cyclic nature of the force application allows tissue recovery during decompression phases, minimizing pain and discomfort while maintaining effective tooth movement, thereby improving patient comfort and compliance.
Solution Approach 2:
The system dynamically adjusts force magnitude (0.5-5 Newtons) and frequency (0.5-5 Hz) parameters based on treatment stage and patient response. This parameter optimization ensures forces remain within comfortable thresholds while maintaining therapeutic effectiveness, reducing harmful discomfort and pain associated with conventional high-force static appliances.
3Ease of operation
If traditional orthodontic appliances are used, then tooth movement occurs, but aesthetic appearance is compromised
Solution Approach 1:
The invention replaces traditional visible mechanical orthodontic appliances (braces, wires, brackets) with an intraoral device that delivers pulsatile forces through a bite plate or attachment system. This substitution maintains aesthetic appearance by avoiding external metallic components while achieving the same orthodontic treatment goals through controlled mechanical vibration and pulsatile loading.
4Productivity
If existing vibrating devices are used for accelerated tooth movement, then cyclic forces are applied, but precision and comfort are insufficient
Solution Approach 1:
The system incorporates sensors and control circuitry that monitor force magnitude, frequency, and duration of pulsatile delivery. This feedback mechanism ensures precise control of mechanical stimulation parameters, maintaining forces within the optimal 0.5-5 Newtons range at 0.5-5 Hz frequency, thereby achieving accurate and repeatable treatment acceleration while preventing excessive forces that would reduce comfort.
Solution Approach 2:
The device enables dynamic adjustment of vibration frequency and force amplitude parameters throughout treatment. The system can modify these parameters in real-time based on treatment progress and patient response, providing precise control over the mechanical stimulation delivered to accelerate tooth movement while maintaining comfort thresholds, unlike fixed-parameter existing vibrating devices.
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
The appliance significantly accelerates orthodontic tooth movement by up to 50%, reduces treatment time from two years to one, and enhances patient compliance and comfort by providing a non-static force-based treatment modality that can address a wide range of malocclusions and craniofacial anomalies.
Implementation Method 1
an extraoral vibratory source and an intraoral bite plate that uses a processor to control and adjust vibration frequency and force, providing a consistent and comfortable cyclic force between 20-40 Hz
Implementation Method 2
Bone is remodeled by the concerted activities of 3 cell types—osteoblasts, osteocytes, and osteoclasts. Mechanical loading is sensitized by the dendritic processes and transferred to biochemical responses involved in control of osteoblast and osteoclast function.
Data Source
AI summary
A processor containing software allowing for measuring the speed of a motor, and adjusting that speed by pulse width modulation is provided. A dedicated voltage limiter prevents excess speed, and a battery charge management controller to charge the battery and monitor the battery charge status, ensures battery voltage is regulated to 3.3 V. These additional features contribute to safety, such that when included on an orthodontic remodeling device they allow safe and effective vibration, with minimal changes in frequency and force and no danger of excess speed or power.