Optical Plaque Detection in Smart Toothbrush Bristles
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Solution Overview
Problem
Many individuals fail to effectively remove dental plaque despite regular brushing, leading to conditions such as gingivitis, periodontitis, and caries.
Innovation Solution
A smart toothbrush system that emits light, detects reflections, and analyzes the light to determine plaque location and amount, providing feedback to enhance brushing effectiveness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional toothbrushing is used, then brushing effort is applied, but plaque removal effectiveness is insufficient
Solution Approach 1:
The patent replaces manual mechanical brushing with an automated optical detection system. A light source emits light that passes through the toothbrush bristles, and a sensor detects the reflected light to identify plaque locations automatically, eliminating the need for manual inspection and guiding targeted brushing.
Solution Approach 2:
The toothbrush system performs self-diagnosis by using its own light source and sensor to detect plaque on the user's teeth. The system autonomously identifies contaminated areas and provides feedback without requiring external assistance or manual inspection, enabling users to target their brushing effectively.
2Measurement precision
If manual toothbrushing without feedback is used, then brushing time is consumed, but plaque detection accuracy is poor
Solution Approach 1:
The system performs preliminary detection of plaque locations before the user begins brushing. By pre-identifying contaminated areas using optical detection, the system enables users to target their brushing efforts from the start, eliminating unnecessary brushing in clean areas and reducing overall brushing time while maintaining high detection accuracy.
Solution Approach 2:
The toothbrush provides real-time feedback to the user by indicating detected plaque locations through visual or haptic signals. This feedback loop allows users to adjust their brushing technique and focus on specific areas, improving detection accuracy and reducing the time needed to effectively remove plaque.
3Productivity
If uniform brushing coverage is applied, then all tooth surfaces are brushed, but plaque removal efficiency is low
Solution Approach 1:
The patent applies local quality by directing brushing effort specifically to areas where plaque is detected rather than uniformly brushing all tooth surfaces. The light source and sensor are positioned to illuminate and detect specific local areas, and the system provides targeted feedback for those regions, enabling efficient plaque removal with simplified brushing patterns.
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
Enhances plaque removal by guiding users to targeted brushing areas, improving dental hygiene and reducing the risk of plaque-related conditions.
Implementation Method 1
a light source and a sensor integrated into the toothbrush, wherein the light source is configured to emit light through the bristles
Implementation Method 2
the sensor is configured to detect light reflected from a tooth surface
Data Source
AI summary
The exemplary embodiments disclose an apparatus, a system and method, and a computer program product for removing dental plaque. The exemplary embodiments may include emitting light, detecting reflections of the light, analyzing the reflected light, and determining an amount or location of dental plaque based on the reflected light.