Dental Photopolymerizable Composition Elastic Modulus
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Solution Overview
Problem
Single-component dental photopolymerizable compositions used for abutment construction in dental prosthetics often result in set products with lower elastic modulus compared to dual-component systems, which is undesirable for mimicking the mechanical properties of human dentin.
Innovation Solution
Incorporating specific amounts of vanadium compounds, α-diketone compounds, and tertiary aromatic amine compounds, along with a filler and photopolymerization initiator, to enhance the generation of radicals during setting and improve the elastic modulus of the set product, while maintaining storage stability and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a single-component photopolymerizable composition is used for abutment construction, then the ease of operation is improved, but the elastic modulus of the set product is reduced
Solution Approach 1:
The patent changes the chemical composition parameters by incorporating specific redox initiator systems (vanadium compounds, α-diketone compounds, and tertiary aromatic amine compounds) to achieve both single-component simplicity and high elastic modulus through enhanced radical generation during setting
Solution Approach 2:
The patent creates a composite photopolymerizable composition combining multiple functional components (monomers, fillers, redox initiators, photopolymerization initiators) that work synergistically to achieve both ease of operation and high elastic modulus properties
2Strength
If a dual-cure composite resin is used for abutment construction, then the elastic modulus of the set product is improved, but the device complexity is increased
Solution Approach 1:
The patent merges the advantages of both chemical-curing and light-curing systems into a single-component composition by incorporating dual-initiator systems that enable both setting mechanisms to occur within one material, eliminating the need for separate components while maintaining high elastic modulus
3Strength
If the content of vanadium compound is increased, then the elastic modulus of the set product is improved, but the storage stability is reduced
Solution Approach 1:
The patent optimizes the concentration parameter of vanadium compound within a specific range (0.001-1 mass%) to achieve the desired elastic modulus while maintaining storage stability, demonstrating precise parameter control to balance performance and stability
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 enhanced composition achieves a higher elastic modulus and improved mechanical strength of the set product, comparable to human dentin, while maintaining stability and operability, as demonstrated by increased radical generation and mechanical testing results.
Implementation Method 1
the amount of radicals generated during the setting time of the dental photopolymerizable composition may be increased
Implementation Method 2
a photopolymerization initiator and a (meth)acrylate compound
Data Source
AI summary
A single-component dental photopolymerizable composition is provided that includes a (meth)acrylate compound, a vanadium compound, an α-diketone compound, and a tertiary aromatic amine compound.