Powered Toothbrush with Pneumatic Bladder for Adaptive Plaque Removal
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Solution Overview
Problem
Conventional dental cleaning methods, including manual and powered toothbrushes, often fail to effectively remove plaque due to inadequate technique and time constraints, leading to poor oral health outcomes, especially with non-uniform cleaning and neglect of interproximal areas.
Innovation Solution
A powered toothbrush with adjustable brush heads and pneumatic or oscillating mechanisms that mimic the Bass Method of brushing, providing simultaneous cleaning of multiple teeth surfaces and adapting to various dental arch shapes, ensuring proper bristle contact and reduced brushing time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional manual or powered toothbrushes are used, then plaque removal can be achieved, but the brushing time required is two or more minutes which exceeds the average usage time of thirty-seven seconds
Solution Approach 1:
The brush head is divided into multiple independent bristle segments or zones, each targeting specific tooth surfaces. This segmentation allows simultaneous cleaning of multiple tooth surfaces with a single brush head position, dramatically reducing the number of strokes needed and thereby reducing brushing time while maintaining effective plaque removal.
Solution Approach 2:
Multiple cleaning functions are merged into a single brush head design that can clean multiple tooth surfaces simultaneously. The brush head incorporates bristle patterns and positioning mechanisms that enable one stroke to clean several teeth, combining what would traditionally require multiple separate brushing actions into a single efficient operation.
2Ease of operation
If small brushing heads on typical toothbrushes are used, then the toothbrush can maneuver in the mouth, but precision positioning is required for the bristles to contact the proper locations on the teeth
Solution Approach 1:
The brush head incorporates self-positioning features such as flexible bristle bases, elastic elements, or compliant structures that automatically adjust the bristle contact points to match the user's specific dental anatomy. This self-adjusting mechanism eliminates the need for the user to precisely position the brush, as the system automatically adapts to ensure proper bristle-tooth contact.
Solution Approach 2:
The brush head design allows for variable bristle stiffness, length, or angular orientation that can be adjusted or that naturally varies across different zones of the brush head. This parameter variation enables different sections of the brush head to contact different tooth surfaces at optimal angles, maintaining effectiveness across diverse dental arch shapes without requiring precise user positioning.
3Adaptability or versatility
If the brush head shape is fixed, then manufacturing is simplified, but the brush head cannot adapt to various malocclusion and dental arch shapes
Solution Approach 1:
The brush head incorporates flexible or movable components such as elastic bristle holders, compliant arch wires, or adjustable segments that can dynamically adapt to different dental arch shapes and malocclusions. These dynamic elements allow the brush head to conform to various tooth arrangements while maintaining a relatively simple overall structure that does not require complex mechanical adjustment mechanisms.
Solution Approach 2:
The brush head utilizes flexible materials and thin-walled structures that can elastically deform to match the contours of different dental arches. This flexibility allows a single brush head design to adapt to various malocclusion types and arch shapes without requiring multiple specialized designs, maintaining manufacturing simplicity while achieving high adaptability.
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 powered toothbrush effectively reduces the time and effort required for effective brushing, improves plaque removal, and adapts to different dental arch shapes, enhancing oral health by ensuring uniform cleaning and deep interproximal cleaning.
Implementation Method 1
The pneumatic pump providing pressure to inflate the bladder and suction to deflate the bladder. The inflation of the bladder causes the first dental arch and the second dental arch to move apart
Implementation Method 2
The pneumatic pump providing pressure to inflate the bladder and suction to deflate the bladder
Implementation Method 3
moving the first set of brush pads in an upward and downward motion along the multiple tooth surfaces
Implementation Method 4
The power toothbrush automatically generates motion of the brush head that simulates the 'Modified Bass Method' of brushing that is recommended by dental professionals as being most effective for removal of dental plaque
Data Source
AI summary
Powered toothbrush systems that provide improved bristle positioning and bristle contact with tooth surfaces that reduce the time and effort required for effective brushing. Some embodiments use alternating or oscillating pneumatic pressure and suction to move a tooth brush head. Various configuration of the brush head provide different areas of coverage ranging from individual tooth to quarter mouth (U-cross section), to half (U-cross section or H-cross section) or whole mouth (U-cross section or H-cross section) coverage. Some embodiments include flexible fingers and/or bladders to keep the bristle tips properly engaged with the teeth and gums, providing bristle contact over a wide variety of malocclusion. The shape of the brush heads adapts to conform closely to the shape of the user's dental arch and to any malocclusion that may be present. The power toothbrush automatically generates motion of the brush head that simulates the “Modified Bass Method” of brushing.