Polyphenol Hydrogel Dental Varnish for Fluoride Delivery
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Solution Overview
Problem
Conventional fluoride varnishes are hydrophobic, poorly biocompatible, and inefficient in releasing fluoride ions to the enamel, leading to inadequate fluoridation and potential fluorosis risks, while also being aesthetically unpleasing and harsh on oral tissues.
Innovation Solution
A water-soluble hydrogel system based on naturally derived polyphenols like tannic acid and gallic acid, combined with metal ions and polymers, which forms a cohesive and adhesive film on the tooth surface, allowing for effective fluoride release and uptake without the need for organic solvents, promoting remineralization and occlusion of dentine tubules.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional fluoride varnishes are used, then fluoride delivery to enamel is achieved, but the varnish is hydrophobic and poorly biocompatible with organic solvents
Solution Approach 1:
The patent changes the fundamental parameter of the varnish base from hydrophobic organic solvent system to hydrophilic aqueous hydrogel system. This transforms the compatibility profile while maintaining fluoride delivery capability through the hydrogel network structure that can incorporate and release fluoride ions.
Solution Approach 2:
The invention uses a composite hydrogel system combining polyvinyl alcohol polymer matrix with crosslinking agents and fluoride compounds. This composite structure provides both the biocompatible hydrophilic base and the effective fluoride delivery mechanism needed for caries prevention.
2Quantity of substance
If hydrophobic varnish systems are used, then fluoride can be incorporated, but adhesion to tooth surface and biocompatibility are reduced
Solution Approach 1:
The patent changes the polarity parameter of the varnish base from hydrophobic to hydrophilic, enabling better interaction with the hydrophilic tooth surface. The aqueous hydrogel base adheres more effectively to enamel while maintaining high fluoride content through the gel network.
Solution Approach 2:
The hydrogel matrix acts as an intermediary carrier that bridges the fluoride compound and the tooth surface. It provides a hydrophilic interface for better adhesion while transporting and releasing fluoride ions to the enamel.
3Reliability
If conventional varnishes are applied, then fluoride release occurs, but the system is aesthetically unpleasing and harsh on oral tissues
Solution Approach 1:
The patent changes the base composition from organic solvent-based to aqueous hydrogel-based, eliminating the harshness and poor aesthetics associated with conventional varnishes. The hydrogel provides a gentle, biocompatible, and aesthetically acceptable base that still enables effective fluoride release.
Solution Approach 2:
The hydrogel matrix serves as a gentle intermediary that delivers fluoride without the harshness of organic solvents. It provides a biocompatible environment that is aesthetically pleasing while maintaining the therapeutic fluoride release function.
4Quantity of substance
If hydrophobic varnish is used, then fluoride can be delivered, but water solubility and patient comfort are compromised
Solution Approach 1:
The patent fundamentally changes the solubility parameter by transitioning from a hydrophobic organic solvent system to a hydrophilic aqueous hydrogel system. This improvement in water solubility and patient comfort is achieved while maintaining effective fluoride concentration through the hydrogel's ion-trapping capability.
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 hydrogel system enhances fluoride uptake and release, providing effective fluoridation and remineralization, is biocompatible, and aesthetically acceptable, with improved adhesion and fluoride delivery, reducing the risk of fluorosis and enhancing tooth health.
Implementation Method 1
The hydrogel system includes at least one polyphenol having at least one phenol group, at least one polymer, and a metal ion
Implementation Method 2
the dental varnish is water soluble... allowing for effective fluoride release and uptake
Implementation Method 3
effective fluoride release and uptake without the need for organic solvents
Implementation Method 4
forms a cohesive and adhesive film on the tooth surface
Implementation Method 5
forms a cohesive and adhesive film on the tooth surface
Data Source
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AI summary
Described herein are dental treatment compositions, more particularly, a dental varnish composition useful in effective fluoridation, enhancement of remineralization the tooth enamel, and hypersensitivity through occlusion of dentine tubule. The dental varnish composition includes a hydrogel system and at least one fluoride source, wherein the dental varnish is water soluble. The hydrogel system includes at least one polyphenol having at least one phenol group, at least one polymer, and a metal ion. Described herein are also methods of making such dental varnish composition.