Dental Composition Using Titanium Oxide for Radiopacity and Strength
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Solution Overview
Problem
The use of zirconium oxide as an X-ray contrast medium in dental compositions improves compression strength and shortens setting time but results in insufficient contrast properties, necessitating a balance among contrast properties, discoloration resistance, and compression strength.
Innovation Solution
A dental composition comprising a cement component, specifically Portland cement, combined with titanium oxide, pure titanium, or strontium titanate, which provides excellent contrast properties, discoloration resistance, and compression strength, replacing conventional MTA.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If zirconium oxide is used as an X-ray contrast medium, then compression strength is improved and setting time is shortened, but contrast properties become insufficient
Solution Approach 1:
The patent changes the type of X-ray contrast medium from zirconium oxide to titanium oxide or its compounds (titanium dioxide, titanium trioxide, titanium tetrachloride). This parameter change in the chemical composition provides superior X-ray contrast properties while maintaining or improving compression strength and setting time characteristics.
Solution Approach 2:
The patent creates a composite dental composition by combining Portland cement with titanium oxide or its compounds. This composite material achieves a balance of multiple properties including excellent X-ray contrast, adequate compression strength, and appropriate setting time, resolving the contradiction between contrast properties and mechanical properties.
2Measurement precision
If bismuth oxide is used as an X-ray contrast medium, then contrast properties are improved, but discoloration occurs when exposed to light
Solution Approach 1:
The patent replaces bismuth oxide, which has stability issues under light exposure, with titanium oxide or its compounds. Titanium oxide provides comparable or superior X-ray contrast properties while offering excellent stability and resistance to discoloration when exposed to light, effectively substituting the problematic material with a more reliable alternative.
Solution Approach 2:
The patent changes the chemical composition from bismuth oxide to titanium oxide-based materials. This parameter change in the X-ray contrast medium provides sustained contrast properties without the discoloration problem associated with bismuth oxide exposure to light.
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 composition achieves superior contrast properties, resistance to discoloration, and enhanced compression strength, eliminating the need for zirconium oxide, thereby offering a substitute for conventional MTA.
Implementation Method 1
adding an inorganic substance having radiopacity so that it can be used in the oral cavity
Implementation Method 2
it is hardened by mixing it with water through hydration reaction
Data Source
AI summary
The present invention is a dental composition comprising a cement component and at least one selected from the group consisting of titanium oxide, pure titanium, sodium titanate, and strontium titanate.