Transparent Test Cell for Dentin Permeability Measurement
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Solution Overview
Problem
Existing methods for measuring the effectiveness of treatments on reducing dentin permeability are limited by the inability to visually record fluid movement through dentin, requiring disassembly of the testing device, which can damage the dentin and alter results.
Innovation Solution
A test cell design that allows direct visualization of fluid movement through dentin sections by maintaining access to the dentin surface while securing it in place, using a transparent top component that enables unobstructed viewing and secure engagement with a bottom component, facilitating real-time visual recording and comparison of hydraulic conductance before and after treatment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the top portion of the testing device is covered to secure the dentin section, then the dentin section is securely held in place, but direct visualization of fluid movement through dentin becomes impossible
Solution Approach 1:
The patent employs a transparent thin film or window material for the top portion of the testing device, allowing visual observation of fluid movement through the dentin section while maintaining the structural integrity and securement function. This transparent barrier enables simultaneous achievement of both securement and visualization requirements.
Solution Approach 2:
The patent creates a visual copy or representation of the fluid movement through dentin by using transparent materials that allow direct observation. This enables researchers to visually record and document the fluid flow patterns without compromising the securement of the dentin section within the testing device.
2Ease of operation
If the top portion is removed and reattached to allow treatment application, then access to dentin surface is obtained, but the dentin may be damaged and results altered
Solution Approach 1:
The testing device is divided into modular components including a removable top portion with treatment application features. This segmentation allows the top portion to be easily removed and reattached without compromising the dentin section, providing convenient access for treatment application while maintaining structural integrity through proper sealing mechanisms.
Solution Approach 2:
The top portion of the testing device is designed with dynamic characteristics, allowing it to be removed and reattached as needed. This dynamic design provides flexibility for treatment application while maintaining a consistent hydraulic conductance window through proper sealing, thereby avoiding damage to the dentin section that would occur with repeated handling.
3Ease of operation
If the top portion is removed for treatment application, then treatment can be applied to dentin, but the hydraulic conductance window consistency is compromised
Solution Approach 1:
The testing device incorporates a modular top portion that can be removed and reattached while maintaining a consistent hydraulic conductance window. The segmented design includes precision sealing mechanisms that ensure the window geometry remains unchanged during treatment application, thereby preserving measurement consistency.
Solution Approach 2:
The top portion is designed with excessive sealing capability or redundant sealing features that ensure the hydraulic conductance window maintains its precise geometry even during repeated removal and reattachment cycles. This partial over-engineering of the sealing mechanism guarantees consistency in the measurement window dimensions.
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
Enables precise, non-destructive measurement and visualization of hydraulic conductance changes, improving the accuracy and reproducibility of dentin permeability assessments by maintaining a consistent hydraulic conductance window and allowing direct application of treatments without disassembly.
Implementation Method 1
Positive pressure is used to drive a testing fluid through the bottom chamber to the dentin section
Implementation Method 2
A test cell design that allows direct visualization of fluid movement through dentin sections by maintaining access to the dentin surface while securing it in place, using a transparent top component that enables unobstructed viewing
Data Source
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AI summary
A method and device for visually recording hydraulic conductance through a sectioned piece of dentin; and which can be used to measure the effectiveness of treatments to reduce the permeability of dentin.