Silver Nanoparticle Dental Care Composition for Long-Term Caries Prevention
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Solution Overview
Problem
Existing dental care methods, such as amalgam fillings and composite resin fillings, face health concerns and limitations in effectively preventing tooth decay, particularly in deep grooves, while over-the-counter fluoride toothpaste is insufficient for high-risk patients.
Innovation Solution
A dental care solution is formulated by mixing silver nanoparticles with zinc, titanium, or silicon ions, along with fluoride or chloride ions, using a hydrothermal method to synthesize the nanoparticles, which are then applied to directly enter dentinal tubules for long-term antibacterial effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If amalgam fillings are used, then durability and strength are improved, but health concerns arise due to mercury vapor release
Solution Approach 1:
The patent extracts and removes the harmful mercury component from dental fillings by replacing amalgam with composite resin materials that maintain structural strength without toxic vapor release, thereby eliminating the harmful factor while preserving durability
Solution Approach 2:
The patent employs composite resin fillings that combine multiple materials (methyl methacrylate-based resin and glass ionomer-based filling) to achieve both mechanical strength and biocompatibility, replacing the homogeneous amalgam material with a composite alternative that eliminates mercury while maintaining durability
2Ease of operation
If fluoride toothpaste is used, then daily oral care is provided, but it is insufficient for high-risk patients with deep grooves
Solution Approach 1:
The patent segments the dental care approach into two levels: daily oral care with fluoride toothpaste for general prevention, and targeted sealing agent application for high-risk areas with deep grooves, allowing each method to address its specific function effectively
Solution Approach 2:
The patent applies sealing agents preliminarily to seal deep grooves and vulnerable areas before daily brushing occurs, creating a protective barrier that enhances the effectiveness of subsequent fluoride toothpaste application and provides ongoing protection for high-risk patients
3Reliability
If sealing agents are applied, then protection against tooth decay is improved, but the process requires removal of natural tooth structure
Solution Approach 1:
The patent applies sealing agents locally only to specific high-risk areas with deep grooves rather than preparing entire surfaces, and uses minimally invasive techniques that preserve maximum natural tooth structure while providing targeted protection where most needed
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 solution provides significant antibacterial action against common oral bacteria, reduces tooth staining, and enhances the willingness of patients to use it due to milder staining, while maintaining effectiveness in preventing tooth decay.
Implementation Method 1
the particle size of the silver nanoparticles is smaller than the diameter of the human dentinal tubules, so that the silver nanoparticles can directly entre into the tubules to release silver ions
Implementation Method 2
the preparation of titanium ion solution, zinc ion solution, and silicon ion solution, also uses a hydrothermal method to synthesize silver nanoparticles
Implementation Method 3
can be induced the generation of reactive oxygen species (ROS), so that the tiny size of silver nanoparticles further can affect the metabolism of bacteria, inhibits the activity of cellular proteins, and ultimately causes apoptosis of microorganisms
Data Source
AI summary
The present invention is a dental care solution and manufacturing method thereof. By using silver nanoparticles and mixing zinc ions, titanium ions, or silicon ions to improve the dental care solution stability, the present invention has antibacterial effect and effectively assists preventing tooth decay.