Ferroelectric Toothpaste Abrasives for Lasting Antibacterial Cleaning
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing toothpaste abrasives lack antibacterial properties, failing to inhibit dental plaque and prevent periodontitis or dental caries, and current antibacterial toothpaste formulations have issues with long-term biocompatibility and safety.
Innovation Solution
Incorporation of a charged antibacterial toothpaste abrasive comprising ferroelectric ceramics like potassium sodium niobate, barium titanate, lithium niobate, or barium strontium titanate, which utilize spontaneous polarization for continuous antibacterial action.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If traditional abrasives (calcium carbonate, silicon dioxide, etc.) are used in toothpaste, then cleaning function is achieved, but antibacterial function is lost
Solution Approach 1:
The patent combines cleaning and antibacterial functions into a single abrasive component by charging traditional abrasives (calcium carbonate, silicon dioxide, aluminum hydroxide, etc.) through corona discharge treatment. This merging allows the abrasive to simultaneously perform mechanical cleaning and antibacterial inhibition without requiring separate ingredients.
Solution Approach 2:
The patent changes the electrical parameter of the abrasive particles by applying corona discharge treatment, which imparts a positive charge to the surface of the abrasives. This parameter change transforms ordinary abrasives into antibacterial agents while preserving their cleaning properties.
2Object-affected harmful factors
If antibacterial ingredients are added to toothpaste to achieve antibacterial function, then bacteria and dental plaque are inhibited, but long-term biocompatibility and safety deteriorate
Solution Approach 1:
The patent replaces chemical antibacterial ingredients with a physical mechanism (electrostatic repulsion). The positively charged abrasives create an electrostatic barrier that repels bacteria and dental plaque, eliminating the need for chemical antibacterial agents and their associated safety concerns.
3Object-affected harmful factors
If antibacterial ingredients are used in toothpaste, then antibacterial effect is achieved, but antibacterial stability deteriorates
Solution Approach 1:
The patent ensures continuous antibacterial action through the persistent positive charge on the abrasive particles. As long as the abrasives remain in the toothpaste and on the tooth surface, they continuously repel bacteria and dental plaque, providing sustained protection without degradation.
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 antibacterial toothpaste effectively inhibits bacteria and dental plaque, preventing periodontal inflammation and dental caries while maintaining long-term compatibility and safety.
Implementation Method 1
Due to the spontaneous polarization property of the ferroelectric ceramic and its ability to maintain good electrical stability, the residual polarization effect of the ferroelectric ceramic is utilized to realize the inhibition of bacteria and dental plaque on the surface of teeth
Data Source
AI summary
The invention provides an antibacterial toothpaste, comprising a charged antibacterial toothpaste abrasive. The charged antibacterial toothpaste abrasive comprises a ferroelectric ceramic. The ferroelectric ceramic is selected from at least one or a compound or a composition of more than one of potassium sodium niobate, i.e. K0.5Na0.5NbO3, barium titanate, i.e. BaTiO3, lithium niobate, i.e. LiNbO3, and barium strontium titanate, i.e. BaxSr1−xTiO3, where 0<x<1. In the inventive antibacterial toothpaste, the charged antibacterial toothpaste abrasive can maintain good electrical stability, such that an antibacterial toothpaste containing same can play a lasting antibacterial role by utilizing a polarization effect, and has a relatively good antibacterial performance, thereby achieving both teeth cleaning and antibacterial effects.