Angled Bristle Toothbrush Head for Plaque Removal
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Solution Overview
Problem
Conventional toothbrushes often fail to provide effective teeth cleaning within the recommended two to three minutes of brushing time, and even when time is adequate, the arrangement of bristles may not be optimal for thorough cleaning, leading to inadequate dental hygiene.
Innovation Solution
A toothbrush design featuring a head with bristles angled at specific degrees (between 4 and 10 degrees) and arranged in multiple directions (vertical, left, and right) to enhance plaque removal and cleaning efficiency, combined with a contoured handle for improved grip and control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional bristle arrangement is used, then manufacturing is simple, but plaque removal effectiveness is insufficient
Solution Approach 1:
The patent applies local quality by creating different bristle zones with specific angle ranges (first zone: 0-10 degrees, second zone: 10-20 degrees, third zone: 20-30 degrees) to address different cleaning needs in specific oral regions. Each zone's bristles are angled differently to optimize plaque removal from teeth surfaces and gumlines in that particular area, thereby improving overall plaque removal effectiveness without uniformly complicating the entire brush head design.
Solution Approach 2:
The bristle arrangement is segmented into multiple distinct zones with different angle characteristics. This segmentation allows each zone to perform a specialized cleaning function while maintaining manufacturing feasibility through modular construction. The segmented approach breaks down the complex cleaning task into manageable sections, improving plaque removal effectiveness without requiring a completely redesign of the entire bristle system.
2Reliability
If brushing time is extended to 2-3 minutes, then cleaning effectiveness improves, but user compliance decreases
Solution Approach 1:
The toothbrush performs self-service by having bristles that automatically orient themselves at optimal angles during normal brushing motions. The multi-zone angle design ensures that bristles in different zones naturally engage with teeth surfaces and gumlines without requiring the user to learn or execute complex brushing techniques. This self-adjusting capability delivers superior cleaning effectiveness while maintaining ease of use and user compliance.
3Reliability
If bristle angles are optimized for gumline cleaning, then dental hygiene improves, but tooth surface coverage may be reduced
Solution Approach 1:
The bristle arrangement is segmented into multiple distinct zones with different angle characteristics. This segmentation allows each zone to perform a specialized cleaning function while maintaining manufacturing feasibility through modular construction. The segmented approach breaks down the complex cleaning task into manageable sections, improving plaque removal effectiveness without requiring a completely redesign of the entire bristle system.
Solution Approach 2:
The patent applies local quality by creating different bristle zones with specific angle ranges (first zone: 0-10 degrees, second zone: 10-20 degrees, third zone: 20-30 degrees) to address different cleaning needs in specific oral regions. Each zone's bristles are angled differently to optimize plaque removal from teeth surfaces and gumlines in that particular area, thereby improving overall plaque removal effectiveness without uniformly complicating the entire brush head design.
Data Source
AI summary
A toothbrush having a distal end and a proximal end. The toothbrush has a head portion located at the distal end. The toothbrush also has a plurality of bristles coupled to the head portion and extending outward in a ventral direction. The toothbrush also has a neck portion being coupled to the head portion at a neck portion distal end. The toothbrush also has a shoulder portion being coupled to the neck portion at a shoulder portion distal end and a neck portion proximal end, and the shoulder portion being curved toward the ventral direction. The toothbrush also has a base portion located at the proximal end, the base portion being coupled to the shoulder portion at a base portion distal end and a shoulder portion proximal end, the base portion being curved toward the ventral direction.