Spherical Silica and Perlite Abrasive System for Tooth Enamel Protection
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Solution Overview
Problem
Existing dentifrice compositions face a challenge in achieving effective cleaning power while minimizing damage to tooth enamel, as high levels of abrasion can lead to excessive enamel wear.
Innovation Solution
A dentifrice composition comprising spherical silica particles and perlite particles, with specific weight percentages and properties, is used to create a highly effective abrasive system that balances cleaning power and enamel protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high levels of abrasion are used in dentifrice, then cleaning power is improved, but tooth enamel wear increases
Solution Approach 1:
The patent combines two different abrasive materials - silica particles and calcium carbonate particles - in a composite dentifrice formulation. This composite approach allows the synergistic interaction between the two abrasives to achieve superior cleaning performance while the softer calcium carbonate component helps mitigate enamel damage, thus resolving the contradiction between cleaning power and enamel protection
Solution Approach 2:
The patent optimizes the particle size distribution and concentration ratios of silica and calcium carbonate particles. By controlling the mean particle size (0.5-5 μm) and the weight ratio (30-70% silica, 70-30% calcium carbonate), the formulation achieves enhanced cleaning efficacy while maintaining acceptable enamel wear levels through precise parameter adjustment
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 combination of spherical silica and perlite particles results in a dentifrice with superior cleaning power, as measured by high Pellicle Cleaning Ratio (PCR) scores, while causing less tooth enamel wear, indicated by low Relative Dentine Abrasivity (RDA) scores.
Implementation Method 1
Insoluble ingredients known generally as abrasives are added to dentifrices to help with the actual removal of stains, plaque, and food particles. These components give the toothpaste the grit required to lift stubborn materials from the tooth surface.
Data Source
AI summary
The invention relates to a dentifrice composition with superior cleaning properties. The properties derive from a novel abrasive system.