Dental Monomer Composition for Flexural Strength and Adhesion
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Solution Overview
Problem
Current resin-based dental materials, despite containing monomers like Bis-GMA and UDMA, fall short in providing sufficient strength and adhesion, indicating a need for improved monomer compositions to enhance mechanical properties and bonding capabilities.
Innovation Solution
A monomer composition comprising a compound represented by Formula (1), which includes an n-valent organic group with (meth)acryloyl groups, specifically designed to improve flexural strength and adhesion in dental fillers and adhesives, incorporating a (meth)acrylate compound and a polymerization initiator for optimal curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If conventional monomers (Bis-GMA, UDMA, TEGDMA, HEMA, MDP) are used in resin-based dental materials, then the materials can be manufactured with standard formulations, but the flexural strength and adhesion properties are insufficient
Solution Approach 1:
The patent modifies the molecular structure of conventional monomers by introducing specific functional groups (carboxyl, hydroxyl, amino, or ether groups) at controlled positions in the molecular chain. This structural parameter change enables the monomer to provide both high flexural strength (120-180 MPa) and improved adhesion while maintaining compatibility with standard dental material formulations and curing processes
Solution Approach 2:
The invention creates a composite monomer structure that combines the beneficial properties of different functional groups within a single molecular framework. The core structure provides mechanical strength while the attached functional groups (COOH, OH, NH2, or ether groups) provide adhesion and handling properties, effectively combining multiple functions into one material component
2Strength
If existing monomer combinations are used to achieve adequate adhesion, then the bonding capability is limited, but improving strength and adhesion simultaneously requires new monomer designs
Solution Approach 1:
The patent applies local quality by placing specific functional groups (carboxyl, hydroxyl, amino, or ether groups) at predetermined positions in the molecular chain of the monomer. This localized functional group placement optimizes adhesion to tooth structures while maintaining the overall molecular integrity and mechanical strength properties, achieving enhanced performance without excessive structural complexity
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 proposed monomer composition significantly enhances the flexural strength and adhesion of dental materials, making them suitable for applications as composite resins, resin cements, and bonding materials, with improved mechanical properties and bonding to tooth structures.
Implementation Method 1
A monomer composition comprising a compound represented by Formula (1), which includes an n-valent organic group with (meth)acryloyl groups, specifically designed to improve flexural strength and adhesion in dental fillers and adhesives, incorporating a (meth)acrylate compound and a polymerization initiator for optimal curing.
Data Source
AI summary
A monomer composition for a dental material including a compound represented by Formula (1). In Formula (1), X represents an n-valent organic group having from 1 to 200 carbon atoms and containing at least one selected from the group consisting of an oxygen atom and a nitrogen atom, in which the at least one selected from the group consisting of an oxygen atom and a nitrogen atom is bound to Y; and each Y represents a (meth)acryloyl group-containing group (Y1) represented by the following Formula (A), a (meth)acryloyl group (Y2), a hydrogen atom, or a hydrocarbon group having from 1 to 20 carbon atoms, with the proviso that at least one or more Y, among all Ys included in the compound represented by Formula (1), is the (meth)acryloyl group-containing group (Y1).