Dental Post Composite with Reflective X-Ray Markers
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Solution Overview
Problem
Current dental posts face challenges in achieving optimal mechanical properties, precise X-ray detectability, rapid and reliable bonding with light-curing adhesives, and high aesthetic standards while maintaining cost-effectiveness and ease of production.
Innovation Solution
A dental post composed of a composite material with fibers and a matrix containing uniformly distributed X-ray marker particles that reflect visible or UV light, allowing for improved mechanical properties and even light distribution for adhesive curing, without compromising on strength or flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If X-ray marker particles are added to the matrix material to improve X-ray detectability, then the dental post becomes reliably detectable by X-ray methods, but the cost of production increases due to the use of expensive radiopaque materials
Solution Approach 1:
The patent applies local quality by concentrating X-ray marker particles specifically in the matrix material surrounding the fiber core, rather than uniformly distributing them throughout the entire dental post. This localized approach ensures reliable X-ray detectability at the bonding interface while minimizing the overall quantity of expensive radiopaque materials used, thereby reducing production costs.
Solution Approach 2:
The patent employs composite materials by combining fiber-reinforced polymer material with X-ray marker particles in the matrix. This composite structure integrates the mechanical strength of fibers with the X-ray detectability of radiopaque particles, achieving both functional requirements without relying on expensive solid radiopaque materials throughout the entire post.
2Productivity
If light-reflecting particles are added to the matrix material to enable rapid bonding with light-curing adhesives, then the bonding process becomes faster and more reliable, but the cost of production increases
Solution Approach 1:
The patent applies local quality by incorporating light-reflecting particles specifically in the matrix material at the bonding interface, creating a localized optical enhancement zone. This allows efficient light-curing adhesive bonding where it is most needed, while avoiding the addition of expensive light-reflecting materials throughout the entire dental post structure.
Solution Approach 2:
The patent achieves multi-functionality by using the same matrix material to serve both as the bonding interface for light-curing adhesives and as the medium containing X-ray marker particles. The matrix material simultaneously enables rapid bonding through light-reflecting particles and ensures X-ray detectability through radiopaque particles, eliminating the need for separate functional layers or materials.
3Shape
If the dental post is made transparent to visible light to meet aesthetic requirements, then the aesthetic appearance is improved, but the ability to reflect light for adhesive curing is reduced
Solution Approach 1:
The patent applies local quality by creating a functional gradient within the dental post: the outer surface maintains transparency for aesthetic purposes, while the internal matrix material contains light-reflecting particles to enhance bonding efficiency. This spatial differentiation allows the post to simultaneously meet aesthetic requirements and bonding performance requirements without compromise.
Solution Approach 2:
The patent resolves the contradiction by transitioning from a uniform material composition to a multi-layered or gradient structure. The light-reflecting particles are distributed within the matrix material in the bonding region, creating optical functionality in the internal dimension while maintaining external transparency for aesthetics, effectively adding a functional dimension without sacrificing appearance.
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 solution enables a dental post with enhanced mechanical properties, efficient X-ray visibility, rapid bonding, and aesthetic appeal, while minimizing the use of expensive X-ray markers and ensuring homogeneous stiffness along its length.
Implementation Method 1
X-ray marker particles that reflect visible or UV light
Implementation Method 2
X-ray marker particles are adapted both to reflect light and to be visible in X-ray examinations
Implementation Method 3
a composite material comprising fibers and a matrix material
Data Source
AI summary
The invention relates to a dental post formed from a composite of fibers and a matrix material, wherein X-ray markers are embedded in the matrix material and the X-ray markers are formed from visible and/or UV light reflective material. According to another aspect of the invention, the X-ray markers are concentrated in a central region of the dental post. The dental post has very good mechanical properties and allows visible and/or UV light to pass through to cure an adhesive disposed on the dental post.