Multi-Phase Oral Composition for Low-Sensitivity Teeth Whitening
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Solution Overview
Problem
Existing dental products for teeth whitening face challenges in achieving improved bleaching efficacy, increased speed of whitening, decreased tooth-sensitivity, and reduced oral soft tissue irritation, often exacerbated by high concentrations of bleaching agents.
Innovation Solution
A multi-phase oral composition comprising a bleaching agent, an aqueous phase, and a hydrophobic phase, with the hydrophobic phase being the predominant portion, formulated to include a cone penetration consistency value from about 50 to 400 and a melt point from 30°C to 90°C, applied via a delivery carrier like a strip or film, and optionally enhanced with electromagnetic radiation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the level of bleaching agent is increased to improve bleaching efficacy and speed of whitening, then bleaching efficacy and speed of whitening are improved, but tooth sensitivity and oral soft tissue irritation increase
Solution Approach 1:
The patent introduces a multi-phase composition system where a hydrophobic phase acts as an intermediary carrier for the bleaching agent. This intermediary system allows controlled delivery of the bleaching agent to tooth surfaces, improving bleaching efficacy while reducing direct contact with high concentrations of bleaching agent that cause sensitivity and irritation.
Solution Approach 2:
The patent changes the physical and chemical parameters of the bleaching agent delivery system by formulating it in a multi-phase composition with specific hydrophobic phase content (40-99.1% by weight). This parameter change enables effective bleaching at lower overall bleaching agent concentrations while maintaining safety and reducing side effects.
2Productivity
If the level of bleaching agent is increased to improve bleaching efficacy and speed of whitening, then bleaching efficacy and speed of whitening are improved, but regulatory compliance becomes problematic
Solution Approach 1:
The patent reformulates the bleaching agent concentration parameters within the multi-phase composition system. By distributing the bleaching agent across phases with the hydrophobic phase predominating (40-99.1% by weight), the system achieves effective bleaching at lower overall concentrations that comply with regulatory limits while maintaining therapeutic efficacy.
3Speed
If high concentration of bleaching agent is used to achieve fast whitening, then speed of whitening is improved, but oral soft tissue irritation increases
Solution Approach 1:
The hydrophobic phase serves as an intermediary delivery system that controls the release and distribution of the bleaching agent. This intermediary mechanism enables rapid whitening action through controlled delivery to tooth surfaces while preventing excessive contact with the bleaching agent by oral soft tissues, thereby reducing irritation.
Solution Approach 2:
The multi-phase composition system creates local quality differences in bleaching agent distribution. The hydrophobic phase concentrates the bleaching agent at the tooth interface where it is needed for rapid whitening, while keeping the overall concentration low in the oral environment to minimize soft tissue irritation.
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 composition effectively whitens teeth with reduced sensitivity and irritation by using low bleaching agent concentrations, ensuring balanced distribution and absorption, thereby enhancing bleaching efficacy.
Implementation Method 1
A multi-phase oral composition is provided that comprises in certain embodiments, more than 0.5% to about 10% of a bleaching agent, about 0.9 to about 60% an aqueous phase, and about 40% to about 99.1% of a hydrophobic phase by weight of the multi-phase oral composition
Implementation Method 2
The present invention relates to a method of whitening teeth with a multi-phase oral composition... bleaching agents are effective in very low concentration, if presented in a multi-phase oral composition as disclosed herein
Data Source
AI summary
A method of whitening teeth with a multi-phase oral composition. The multi-phase oral care composition includes an aqueous phase and a hydrophobic phase. The aqueous phase includes a bleaching agent. The multi-phase oral care composition is applied to the surface of one or more teeth and exposed to electromagnetic radiation (EMR), directed from an EMR source. The EMR has a wavelength of between 200 nm and 1700 nm.