Oral Care Foam Stabilization via Surfactant-Polymer Synergy
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Solution Overview
Problem
Existing oral and dental care products face challenges in providing effective cleaning and care for teeth and gums without causing damage to the tooth enamel or underlying dentin, especially when used with electric toothbrushes, and in maintaining a stable foam that prevents spilling or impairing the mechanics of the toothbrush.
Innovation Solution
A combination of anionic and amphoteric surfactants, carboxymethyl cellulose, and xanthan gum, with specific weight ratios and degrees of substitution, creates a stable and fine-pored foam that enhances active ingredient deposition and protects the gums and oral mucosa, while being suitable for use with electric toothbrushes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If polishing agents with certain abrasiveness are used to achieve cleaning and polishing effect, then cleaning performance is improved, but tooth enamel and dentin may be damaged from daily use
Solution Approach 1:
The patent changes the chemical parameters of the toothpaste by using specific concentrations of surfactants (0.5-5% anionic, 0.1-2% amphoteric) and polymers (0.1-5% each of xanthan and CMC) to create a foam matrix that enables effective cleaning with reduced abrasive action, thus maintaining cleaning performance while reducing mechanical damage to teeth
Solution Approach 2:
The patent creates a composite foam system combining multiple surfactants and polymers that work synergistically to provide cleaning efficacy through chemical action and foam mechanics rather than relying solely on abrasive polishing agents, thereby reducing enamel damage while maintaining cleaning performance
2Stability of the object's composition
If stable foam is used to prevent spilling and protect gums, then foam stability is improved, but the mechanics of electric toothbrush may be impaired
Solution Approach 1:
The patent optimizes the foam parameters by controlling surfactant concentrations (0.5-5% anionic, 0.1-2% amphoteric) and polymer content (0.1-5% each) to achieve a foam that is stable enough to prevent spilling but has appropriate flow characteristics that do not interfere with electric toothbrush mechanics
Solution Approach 2:
The patent creates different functional zones within the foam structure where the outer layer provides stability and spill prevention while the inner structure maintains appropriate fluidity and brush penetration characteristics, allowing the foam to serve multiple functions without compromising toothbrush operation
3Productivity
If abrasives are used for effective tooth cleaning, then cleaning activity is improved, but mechanical stress on gums and oral mucosa increases
Solution Approach 1:
The patent replaces the mechanical action of abrasives with a chemical and foam-based cleaning mechanism where surfactants and enzymes perform the cleaning function through chemical interaction and foam penetration, eliminating the need for harsh abrasive particles that cause mechanical stress to gums and mucosa
Solution Approach 2:
The patent changes the cleaning mechanism from mechanical abrasion to chemical-f foam action by optimizing surfactant concentrations and foam stability parameters, allowing effective cleaning through chemical interaction and foam mechanics rather than physical abrasion, thus protecting soft tissues
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 solution effectively cleans teeth, provides optimal caries prophylaxis, vitalizes and strengthens the gums, and protects against mechanical stress, ensuring the foam is stable and easy to wash out, thus preventing damage to the teeth and gums.
Implementation Method 1
A combination of anionic and amphoteric surfactants, carboxymethyl cellulose, and xanthan gum, with specific weight ratios and degrees of substitution, creates a stable and fine-pored foam that enhances active ingredient deposition
Implementation Method 2
They usually contain a combination of polishing agents, humectants, surfactants, binders, flavorings and fluoride-containing and antimicrobial active ingredients
Data Source
AI summary
Oral and dental care and cleaning agents containing – by weight – 0.05 to 5.0 wt.% anionic surfactant(s), preferably sodium lauryl sulfate; 0.05 to 5.0 wt.% amphoteric surfactant(s), preferably cocamidopropyl betaine; 0.1 to 10 wt.% carboxymethylcellulose and 0.1 to 10 wt.% xanthan gum, possess a stable and fine-pored foam that intensifies the deposition of active ingredients onto tooth enamel, gums, and oral mucosa. The foam is stable and easily rinsed away, making it particularly suitable for application with electric toothbrushes.