Denture Base Coating Film Scratch Resistance

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Solution Overview

Problem

Denture bases made from (meth)acrylic polymers are prone to scratches and bacterial adhesion, leading to potential oral health issues and discomfort for users.

Innovation Solution

A denture base coating composition comprising specific compounds, such as those represented by Formulas (1-0) and (2-0), which form a coating film with excellent scratch resistance and inhibit bacterial attachment, is applied to the denture base, enhancing its surface properties through hydrophilicity and smoothness.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a denture base is made from (meth)acrylic polymer to provide adequate flexibility, then the denture base becomes easily scratchable and prone to bacterial adhesion

Engineering Contradiction:
ImproveflexibilityVSAvoidscratch resistance
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The patent applies composite materials by combining (meth)acrylic polymer with specific inorganic particles (silica, alumina, or glass) having controlled surface treatments. This composite structure provides both the required flexibility from the polymer matrix and the scratch resistance from the inorganic particle reinforcement, resolving the contradiction between adaptability and reliability.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies local quality by providing surface treatment specifically to the surface layer of the denture base while maintaining the bulk properties of the (meth)acrylic polymer. The surface treatment creates a scratch-resistant and bacteria-resistant layer without affecting the overall flexibility of the denture base material.

Inventive Principle:
Principle #3Local quality

2Adaptability or versatility

If a denture base is made from (meth)acrylic polymer to provide adequate flexibility, then bacterial attachment is likely to occur on the denture base

Engineering Contradiction:
ImproveflexibilityVSAvoidbacterial attachment
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The patent uses composite materials with inorganic particles (silica, alumina, or glass) that have been surface-treated to be hydrophilic. This composite structure creates a surface that is less prone to bacterial adhesion while maintaining the flexibility of the (meth)acrylic polymer matrix.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The patent applies parameter changes by modifying the surface properties of the denture base through surface treatment to change its hydrophobicity to hydrophilicity. This parameter change makes the surface less favorable for bacterial attachment while preserving the bulk flexibility of the material.

Inventive Principle:
Principle #35Parameter changes

3Reliability

If surface treatment is applied to improve scratch resistance and bacterial attachment inhibition, then the coating composition complexity increases

Engineering Contradiction:
Improvescratch resistanceVSAvoidcoating composition complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent applies local quality by concentrating the complex surface treatment only in the coating layer applied to the denture base surface, while the bulk denture base material remains simple. This localized approach provides the necessary scratch resistance without requiring complex modifications to the entire denture base structure.

Inventive Principle:
Principle #3Local quality

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 coating film provides superior scratch resistance and effectively prevents bacterial adhesion, improving the durability and hygiene of the denture base, thereby enhancing user comfort and oral health.

Implementation Method 1

a denture base coating composition comprising at least one selected from the group consisting of a first compound represented by Formula (1-0) and a second compound represented by Formula (2-0)

Methodology Applied
Scientific EffectPolymerization: Photopolymerisation

Data Source

PatentUS10945928B2Denture base coating composition, coating film-bearing denture base, plate denture, and method for producing coating film-bearing denture base
Publication Date: 2021.03.16 FUJIFILM CORP
  • US10945928B2 patent drawing
  • US10945928B2 patent drawing
  • US10945928B2 patent drawing

AI summary

A denture base coating composition includes at least one selected from the group consisting of a first compound represented by Formula (1-0) and a second compound represented by Formula (2-0).