Essential Oil Oral Rinse Formulation for Plaque and Odor Control

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Solution Overview

Problem

There is a need for an alcohol-free, fluoride-free, chemical-free, abrasive-free, natural oral rinse that is non-irritating, safe, and can be repeatedly used to effectively prevent plaque, oral malodor, and staining without harming tooth enamel.

Innovation Solution

The development of oral-care rinse compositions primarily consisting of water and specific essential oils such as thyme, lemongrass, peppermint, and tea tree, with water making up greater than 95% of the composition, and essential oils present in specific weight percentages to provide antibacterial and anti-plaque properties.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If alcohol-based oral rinses are used to achieve antibacterial effects, then bacterial growth is suppressed, but dry mouth and pH imbalances occur which promote further bacterial and fungal growth

Engineering Contradiction:
Improveantibacterial effectivenessVSAvoiddry mouth and pH imbalances
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent extracts and eliminates alcohol from the oral rinse formulation while maintaining antibacterial effectiveness through alternative essential oils (tea tree, peppermint, lemongrass, eucalyptus, lavender) that provide antimicrobial properties without the harmful side effects of alcohol-based formulations

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the chemical composition parameters by replacing alcohol with a specific blend of essential oils at defined concentrations (tea tree oil 0.05-0.2%, peppermint oil 0.05-0.2%, lemongrass oil 0.05-0.2%, eucalyptus oil 0.05-0.2%, lavender oil 0.05-0.2%), thereby maintaining antimicrobial activity while eliminating harmful pH imbalances and dry mouth effects

Inventive Principle:
Principle #35Parameter changes

2Productivity

If abrasive ingredients are added to oral rinses to treat plaque and tartar, then plaque removal is improved, but tooth enamel is harmed over time

Engineering Contradiction:
Improveplaque removal efficiencyVSAvoidtooth enamel damage
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent substitutes mechanical abrasive action with chemical/biological action by using essential oils that naturally inhibit plaque formation and remove stains through their antimicrobial and enzymatic properties, eliminating the need for abrasive particles that damage tooth enamel

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent converts the natural sticky properties of essential oils into a beneficial cleaning mechanism where the oils adhere to plaque and stains, allowing them to be naturally removed through rinsing without requiring abrasive mechanical action that would harm enamel

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Reliability

If multiple essential oils are combined in the oral rinse formulation, then antibacterial and anti-plaque properties are enhanced, but formulation complexity increases

Engineering Contradiction:
Improveantibacterial and anti-plaque propertiesVSAvoidformulation complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent merges five essential oils (tea tree, peppermint, lemongrass, eucalyptus, and lavender) into a single unified formulation where the oils work synergistically to enhance antibacterial and anti-plaque effects, creating a comprehensive oral hygiene solution that addresses multiple oral health concerns simultaneously

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent creates a multi-functional oral rinse formulation where the essential oil blend serves multiple purposes: antimicrobial action, plaque inhibition, stain removal, and breath freshening, thereby achieving enhanced overall oral health benefits from a single formulation rather than requiring multiple separate products

Inventive Principle:
Principle #6Universality (Multi-functionality)

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 oral-care rinse compositions effectively reduce dental plaque, prevent oral malodor, and minimize staining on teeth, while being safe for repeated use and non-irritating to the oral cavity, thus enhancing oral hygiene without the adverse effects of alcohol or harsh chemicals.

Implementation Method 1

Several known oral rinses use alcohol and/or other anti-bacterial components, including some of the hundreds of known essential oils. Though essentials oils are natural products that may have antibacterial properties, they do not all act in the same manner to help retard bacterial growth, especially in the mouth.

Methodology Applied
Scientific EffectAntibacterial properties of essential oils:

Implementation Method 2

the inventor has honed-in on specific formulations that she and her dental clinicians have observed as reducing dental plaque, oral malodor, and stains to the teeth

Methodology Applied
Scientific EffectAnti-plaque properties of essential oils:

Data Source

PatentUS20250064715A1Oral Rinse Formulations Having Essential Oils
Publication Date: 2025.02.27 PROSANUS LLC

AI summary

An oral-care rinse composition comprises water, thyme essential oil, lemongrass essential oil, and peppermint essential oil. The water is present in an amount that is greater than 95-99 weight % based on the total weight of the rinse composition. The thyme essential oil is present in an amount of 0.15 to 0.65 weight % based on the total weight of the rinse composition. The lemongrass essential oil is present in an amount of 0.15 to 0.65 weight % based on the total weight of the rinse composition. The peppermint essential oil is present in an amount of 0.15 to 0.65 weight % based on the total weight of the rinse composition.