Dextranomer Microspheres for Selective Cariogenic Bacteria Removal
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Solution Overview
Problem
Current methods for preventing tooth decay disrupt both healthy and pathogenic bacteria in the oral cavity, lacking specificity for targeting cariogenic bacteria like Streptococcus mutans without affecting commensal flora.
Innovation Solution
Development of antimicrobial microspheres encapsulated in a glycosidic polymer-based matrix, such as insoluble cross-linked dextran, which selectively targets and removes cariogenic bacteria by exploiting their affinity for the polymer, while minimizing disruption to healthy bacteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If general antimicrobial agents are used to prevent tooth decay, then pathogenic bacteria are eliminated, but healthy commensal flora is also disrupted
Solution Approach 1:
The patent uses dextranomer microspheres as an intermediary carrier that selectively binds to cariogenic bacteria through glucan-binding proteins. The microspheres act as a mediator between the antimicrobial agent and target bacteria, enabling selective delivery of antimicrobials only to pathogenic organisms while sparing healthy commensal flora. This resolves the contradiction by introducing a targeted delivery mechanism that distinguishes between harmful and beneficial bacteria.
Solution Approach 2:
The invention applies local quality by creating microspheres with specific surface properties (dextranomer composition) that are selectively recognized only by cariogenic bacteria possessing glucan-binding proteins. This localized specificity ensures that antimicrobial effects are concentrated only where needed (on pathogenic bacteria) rather than affecting the entire oral microbiome uniformly.
2Reliability
If conventional antimicrobial treatments are applied, then cariogenic bacteria are reduced, but specificity for target bacteria is not achieved
Solution Approach 1:
The dextranomer microsphere serves as a selective intermediary that exploits the specific interaction between glucan-binding proteins on cariogenic bacteria and dextran polymers. This mediator enables precise targeting of Streptococcus mutans and other cariogenic species while leaving other oral bacteria unaffected, thereby achieving both elimination of target pathogens and high specificity.
Solution Approach 2:
The invention changes the parameter of bacterial surface recognition by utilizing the specific biochemical interaction between glucan-binding proteins and dextranomer. This parameter change (from general antimicrobial action to specific molecular recognition) enables selective targeting based on the presence of glucan-binding proteins, which are characteristic of cariogenic bacteria.
3Quantity of substance
If broad-spectrum antimicrobial agents are used, then overall bacterial load is reduced, but selective removal of pathogens is not achieved
Solution Approach 1:
The dextranomer microsphere acts as a selective intermediary that physically binds to cariogenic bacteria through their glucan-binding proteins before delivering antimicrobial agents. This two-step process (specific binding followed by antimicrobial delivery) ensures that only pathogenic bacteria are removed or killed, achieving both quantity reduction and high selectivity simultaneously.
Solution Approach 2:
The invention segments the oral microbiome treatment approach by separating pathogenic bacteria from commensal flora through specific molecular recognition. The dextranomer microspheres selectively bind only to cariogenic bacteria, effectively segmenting the bacterial population for targeted intervention while leaving the rest of the microbiome intact.
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 microspheres effectively inhibit the growth and remove cariogenic bacteria from the oral cavity, reducing the risk of dental caries and associated infections like infective endocarditis with minimal impact on commensal microbiota.
Implementation Method 1
selectively targets and removes cariogenic bacteria by exploiting their affinity for the polymer
Data Source
AI summary
Provided herein are microspheres containing an antimicrobial agent encapsulated within a glycosidic polymer and use thereof, especially to inhibit the growth of carie-causing organism.