Oral Care Evaluation System Using Fluorescence Pixel Analysis

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Solution Overview

Problem

Current systems for evaluating oral hygiene, particularly of soft tissues like the tongue, are not convenient for home use and lack objective measures, relying on subjective observations of fluorescence from porphyrin compounds.

Innovation Solution

An oral care evaluation system that illuminates oral tissue with a specific wavelength to induce fluorescence in organic compounds, using an image sensor and processor to generate and analyze image data, objectively assessing oral hygiene by evaluating attributes of each pixel in the image.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Measurement precision

If subjective observation of fluorescence is used to evaluate oral hygiene, then the evaluation can be performed without complex equipment, but the measurement precision and objectivity are insufficient

Engineering Contradiction:
Improveoral hygiene evaluation accuracyVSAvoidsystem complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces the mechanical/subjective observation method with an optical detection system. The image sensor captures fluorescence emissions objectively, and the processor analyzes the captured images to quantify oral hygiene status, substituting human subjective judgment with automated optical measurement and image analysis

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent changes the evaluation parameter from subjective visual assessment to quantitative analysis of fluorescence intensity and distribution. By measuring the intensity of fluorescence emissions and analyzing pixel values in captured images, the system transforms the evaluation into an objective parameter-based assessment

Inventive Principle:
Principle #35Parameter changes

2Measurement precision

If professional evaluation systems are used, then measurement precision is improved, but ease of operation and accessibility for home use deteriorates

Engineering Contradiction:
Improveoral hygiene evaluation accuracyVSAvoidhome use convenience
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The patent creates a universal system that can be used both professionally and at home. The device combines professional-grade fluorescence detection capabilities with a portable, easy-to-operate design, allowing the same system to serve multiple functions and user contexts without requiring separate specialized equipment

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system enables self-service oral hygiene evaluation through automated image capture and analysis. The processor automatically analyzes the captured fluorescence images and provides evaluation results without requiring professional intervention, allowing users to perform accurate oral hygiene assessments at home independently

Inventive Principle:
Principle #25Self-service

3Measurement precision

If quantitative pixel analysis is implemented, then measurement precision and objectivity are improved, but device complexity increases

Engineering Contradiction:
Improveoral hygiene evaluation accuracyVSAvoidimage processing complexity
Core Design Contradiction:
Measurement precisionVSDevice complexity

Solution Approach 1:

The patent replaces complex manual image analysis with automated computational processing. The processor automatically captures images, analyzes pixel values, quantifies fluorescence intensity distribution, and generates evaluation results, substituting manual analysis with automated digital image processing algorithms

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

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

Provides a consistent and objective evaluation of oral hygiene, correlating fluorescence intensity with bacterial presence, enabling effective oral hygiene assessment both professionally and at home.

Implementation Method 1

a light source configured to emit a spectrum of light which induces fluorescence in an organic compound

Methodology Applied
Scientific EffectFluorescence: Fluorescence

Implementation Method 2

an image sensor receiving light generated by fluorescence of the organic compound on the soft oral tissue, the image sensor generating image data

Methodology Applied
Scientific EffectPhotoelectric Effect: Photoelectric Effect

Data Source

PatentEP3651635B1Oral care evaluation system and process
Publication Date: 2024.11.06 COLGATE PALMOLIVE CO
  • EP3651635B1 patent drawingFigure 1~2
  • EP3651635B1 patent drawingFigure 3
  • EP3651635B1 patent drawingFigure 4A~4B

AI summary

An oral care evaluation system may include: a light source (103) configured to emit a spectrum of light which induces fluorescence in an organic compound, the light source illuminating soft oral tissue within an oral cavity; an image sensor (105) receiving light generated by fluorescence of the organic compound on the soft oral tissue, the image sensor generating image data for an image of the oral tissue, the image comprising a plurality of pixels; and an image processor (109) receiving the image data from the image sensor and programmed to evaluate oral hygiene of the soft oral tissue by assessing an attribute of each pixel in the image.