Hydrogen Peroxide Dental Appliance Cleanser for Rapid Antimicrobial Action

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Solution Overview

Problem

Existing dental appliance cleansers are inconvenient, often requiring soaking or mechanical brushing, which are not effective in removing bacteria and can damage the appliance, and there is a need for fast-acting, safe, and compatible cleansers.

Innovation Solution

Aqueous dental appliance cleanser compositions containing hydrogen peroxide, salicylic acid, furoic acid, or formic acid, and an anionic surfactant, which are ready to use and form an aerated foam, providing rapid antimicrobial action and compatibility with dental appliance materials.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If dental appliances are cleaned by soaking in a cleanser bath, then every part of the appliance is reached, but the process requires extended time (overnight soaking) and is inconvenient

Engineering Contradiction:

Improvecleaning effectivenessVSAvoidcleaning time

Core Design Contradiction:

ReliabilityVSLoss of time

Solution Approach 1:

The patent changes the chemical parameters of the cleanser by using a lower pH formulation (pH 2-4) with specific acids (citric, lactic, or acetic acid) combined with hydrogen peroxide. This parameter change enables the cleanser to be effective in a short contact time (1-5 minutes) rather than requiring overnight soaking, thus resolving the contradiction between cleaning effectiveness and time required

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent creates a composite cleanser system combining multiple active ingredients (hydrogen peroxide 0.5-3% w/v plus pH-adjusting acids) that work synergistically. This composite formulation achieves superior cleaning and antimicrobial effects in reduced time compared to conventional single-ingredient cleansers, resolving the time-effectiveness contradiction

Inventive Principle:

Principle #40Composite materials

2Productivity

If mechanical brushing or scrubbing is used to clean dental appliances, then cleaning can be performed quickly, but it may scratch or damage the appliance surface

Engineering Contradiction:

Improvecleaning speedVSAvoidsurface damage

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent replaces the mechanical cleaning action (brushing/scrubbing) with a chemical cleaning system. The low-pH formulation with hydrogen peroxide provides effective cleaning and antimicrobial action through chemical mechanisms rather than mechanical abrasion, thus eliminating surface damage while maintaining cleaning speed and effectiveness

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If conventional cleansers are used, then cleaning can be performed, but they are not effective in removing bacteria and may require extended contact time

Engineering Contradiction:

Improvebacterial removal effectivenessVSAvoidcontact time

Core Design Contradiction:

ReliabilityVSDuration of action of moving object

Solution Approach 1:

The patent changes the chemical parameters by incorporating hydrogen peroxide (0.5-3% w/v) with pH-adjusting acids to create a formulation with enhanced antimicrobial properties. This parameter modification enables rapid bacterial removal (log reductions achieved in 1-5 minutes) compared to conventional cleansers, resolving the contradiction between effectiveness and contact time

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent utilizes hydrogen peroxide as a strong oxidizing agent that rapidly destroys bacterial cell walls and membranes. This oxidative mechanism provides accelerated bacterial killing action, achieving high-level disinfection in minimal contact time, thus resolving the effectiveness-time contradiction

Inventive Principle:

Principle #38Strong oxidants (Accelerated oxidation)

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 compositions achieve at least a log 2.5 reduction in microbial colonies within 60 seconds, are stable for up to 24 months, and are safe for dental appliance materials, without alcohol and with low environmental impact.

Implementation Method 1

aqueous dental appliance cleanser composition comprising (a) hydrogen peroxide, (b) at least one acid selected from the group consisting of salicylic acid, furoic acid and formic acid and (c) an anionic surfactant

Methodology Applied

Scientific EffectOxidation: Oxidation

Implementation Method 2

Methodology Applied

Scientific EffectSurfactant: Surfactant

Data Source

PatentUS20250288709A1Dental appliance cleanser

Publication Date: 2025.09.18 HALEON UK IP LTD

AI summary

The present invention relates to improved compositions for cleansing dental appliances comprising hydrogen peroxide and at least one acid selected from the group consisting of salicylic acid, furoic acid and formic acid.