Tooth Whitening Complex via Hectorite Clay Adsorption
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current tooth whitening products face challenges in providing a durable and safe solution for tooth whitening while minimizing tooth sensitivity, as water-soluble dyes are ineffective and peroxide-based products can be difficult to formulate and may exacerbate sensitivity.
Innovation Solution
A tooth whitening oral care composition comprising a water insoluble whitening complex of magnesium alkali metal silicate clay, specifically hectorite clay, combined with an orally acceptable blue dye like FD&C Blue #1, and L-arginine, which is prepared by dispersing the clay and dye in an aqueous solution with salt under agitation to form a stable complex that adheres to teeth without dissolving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water-soluble dye is used for tooth whitening, then the dye can be easily applied and formulated, but the dye is quickly dissolved by saliva and cannot provide durable effect
Solution Approach 1:
The patent combines water-soluble dye with water-insoluble particles (such as silica, calcium carbonate, or titanium dioxide) to create a composite material. The dye is adsorbed onto the surface of these particles, forming a stable complex that is insoluble in water. This composite structure allows the dye to be easily applied while resisting dissolution by saliva, thereby providing both ease of formulation and durable whitening effect.
2Reliability
If peroxide-based whitening products are used, then tooth whitening effect can be achieved, but the products are difficult to formulate due to oxidation of ingredients and decomposition into water and oxygen
Solution Approach 1:
The patent extracts the active whitening component (dye) from the problematic peroxide-based system and combines it with inert water-insoluble particles. This eliminates the formulation issues associated with peroxide (oxidation of other ingredients and decomposition) while retaining the whitening effect. The dye-particle complex provides stable, controllable whitening without the chemical instability of peroxide systems.
3Reliability
If harsh chemicals are used for tooth whitening, then whitening effect can be achieved, but tooth sensitivity is exacerbated
Solution Approach 1:
The patent changes the chemical parameters of the whitening system by using mild, non-irritating dyes (such as methylene blue or toluidine blue) instead of harsh chemicals like high-concentration peroxide. The dye is delivered in a controlled manner through the water-insoluble particle carrier, providing gradual and gentle whitening action that does not irritate exposed dentin or exacerbate tooth sensitivity, while still achieving effective whitening results.
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 by forming a stable, water-insoluble complex that adheres to teeth, reducing tooth sensitivity and providing a durable whitening effect while being safe for oral use.
Implementation Method 1
a water insoluble whitening complex comprising (a) an orally acceptable blue dye, e.g., a triarylmethane dye, and (b) a magnesium alkali metal silicate clay
Implementation Method 2
L-arginine in free or orally acceptable salt form
Data Source
AI summary
A tooth whitening composition containing a complex of a triarylmethane dye in with a magnesium alkali metal silicate clay in combination with an orally acceptable carrier.