Dental Separation Material Using Fatty Acid Film
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Solution Overview
Problem
Current dental separation materials fail to effectively prevent impression materials from adhering to teeth, leading to inaccurate impression taking.
Innovation Solution
A dental separation material comprising a fatty acid with a carbon number of 6 or more, preferably a saturated fatty acid, combined with an aqueous solvent, which is applied to the teeth to prevent adhesion and facilitate accurate impression removal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional dental separation materials are used, then resin adhesion is prevented, but impression material adhesion cannot be prevented
Solution Approach 1:
The patent changes the chemical composition parameters of the separation material by incorporating specific fatty acids (lauric acid, myristic acid, palmitic acid, or stearic acid) in controlled concentrations (0.01-65% by mass) within an aqueous solvent system. This parameter modification enables the material to effectively prevent adhesion of both resin and impression materials, resolving the limitation of conventional materials that only worked for resin applications.
2Manufacturing precision
If impression material is applied to teeth, then dental impression is obtained, but adhesion to teeth causes inaccurate impressions
Solution Approach 1:
The patent introduces a fatty acid-based separation material as an intermediary substance applied to the tooth surface before impression taking. This intermediary layer prevents direct adhesion between the impression material and tooth structure, allowing accurate impression removal without distortion. The aqueous solvent system ensures proper delivery and distribution of the fatty acid components on the tooth surface.
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 effectively prevents impression material adhesion to teeth, enabling highly accurate impression taking and easy removal, particularly when used with alginate impression materials.
Implementation Method 1
a dental separation material including a fatty acid and an aqueous solvent
Data Source
AI summary
A dental separation material which prevents adhesion of an impression material to a tooth is provided. The dental separation material includes a fatty acid and an aqueous solvent.