Root Canal Material Curing in Moist Environments
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Solution Overview
Problem
Root canal treatment materials used in humid environments, such as the oral cavity, face insufficient curing, which is inadequate for effective treatment.
Innovation Solution
A root canal treatment material comprising a (meth)acrylamide compound with specific structures, an acidic group-containing monomer, and a polymerization initiator, which enhances reactivity and adhesiveness, ensuring sufficient curing even in moist conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional dental materials containing (meth)acrylate monomers are used for root canal treatment, then the materials can be applied in various dental procedures, but the curability in humid environment is insufficient and does not reach the required level
Solution Approach 1:
The patent changes the chemical parameters of the monomer from conventional (meth)acrylate to specific (meth)acrylamide compounds with particular molecular structures. This parameter change in monomer type and structure enables sufficient curing reaction to proceed even in humid environments, resolving the contradiction between reliability of curing and adaptability to moisture
Solution Approach 2:
The patent creates a composite material system combining specific (meth)acrylamide compounds with polymerization initiators and fillers. This composite formulation achieves synergistic effects where the specific monomer structure enables reliable curing in humid conditions while maintaining the versatility needed for root canal treatment applications
2Reliability
If the root canal treatment material is designed for high reactivity to ensure sufficient curing, then curability improves, but the material complexity increases
Solution Approach 1:
The patent achieves high reactivity and curability by changing the fundamental parameter of monomer chemistry to (meth)acrylamide compounds with specific structures. This single parameter change provides both the required curability and simplifies the overall material system compared to complex multi-component systems
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 material achieves superior curability and adhesiveness in humid environments, forming a stable cured product that effectively seals the dental pulp or root canal, preventing secondary infections.
Implementation Method 1
JP2011-236211A discloses a dental material containing 'at least one of a polymerizable ethylenically unsaturated monomer or an initiator for radical polymerization'
Implementation Method 2
the curability in a humid environment is insufficient... using a root canal treatment material containing a (meth)acrylamide compound having a specific structure
Data Source
AI summary
The present invention provides a root canal treatment material having excellent curability in a moist environment and a root canal treatment kit containing the root canal treatment material. The root canal treatment material of the present invention includes: at least one compound (A) selected from the group consisting of a compound represented by Formula (1), a compound represented by Formula (2), and a compound represented by Formula (3); an acidic group-containing monomer (B); and a polymerization initiator (C).