Two-Chamber Whitening System with Bleach Activator
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Solution Overview
Problem
Conventional tooth whitening compositions do not provide sufficient whitening action and stability, as they rely solely on peroxide agents that can degrade over time and fail to effectively penetrate the enamel layer for enhanced whitening.
Innovation Solution
A two-component tooth whitening system comprising a whitening agent and a bleach activator, such as an activated ester, stored separately until mixed, which enhances whitening efficacy and stability by forming a peracid that is a better oxidant, thereby improving bleaching effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional peroxide-based tooth whitening compositions are used, then whitening action is provided, but the whitening efficacy is insufficient and the composition degrades over time
Solution Approach 1:
The system divides the whitening composition into two separate storage chambers: one containing peroxide and another containing bleach activator. This segmentation prevents premature reaction between components, maintaining stability during storage while enabling enhanced whitening efficacy when the components are mixed and applied to teeth.
Solution Approach 2:
The system performs preliminary preparation by pre-loading the storage chambers with stable, inactive components (peroxide and bleach activator separately). When needed, these pre-prepared components are mixed in situ on the teeth, allowing the peroxide to be activated by the bleach activator and generate peracids that provide enhanced whitening action.
2Productivity
If peroxide concentration is increased to enhance whitening action, then whitening efficacy improves, but stability and safety during storage deteriorate
Solution Approach 1:
By segmenting the composition into separate chambers containing peroxide and bleach activator, the system allows use of higher peroxide concentrations without compromising stability, as the peroxide remains isolated from the bleach activator during storage and only reacts when applied to teeth.
Solution Approach 2:
The bleach activator serves as an intermediary that converts peroxide into more effective peracid species in situ. This allows the system to achieve enhanced whitening action through peracid formation rather than relying solely on high concentrations of stable but less effective peroxide.
3Device complexity
If single-component peroxide compositions are used, then the system is simple, but whitening penetration and efficacy are insufficient
Solution Approach 1:
The system uses a simple two-chamber design that segments the whitening components, providing enhanced penetration and efficacy through peracid formation while maintaining operational simplicity through integrated storage and application.
Solution Approach 2:
The system creates a composite whitening effect by combining peroxide and bleach activator components that work synergistically. The bleach activator enhances peroxide penetration into enamel and promotes formation of peracids that provide superior whitening action compared to peroxide alone.
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 system achieves superior and faster whitening compared to conventional compositions, maintaining stability and efficacy over multiple uses, as demonstrated by increased peracid generation and prolonged whitening treatment.
Implementation Method 1
The primary active ingredient in such products and substances that provides whitening action, known as the whitening agent, is a peroxide which whitens teeth by oxidizing the organic matrix of teeth.
Implementation Method 2
combining at least one whitening agent and at least one bleach activator
Data Source
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AI summary
Provided is a tooth whitening system, including at least one whitening agent disposed in a first storage chamber, and least one bleach activator disposed in a second storage chamber.