Wet-Setting Dental Adhesive Using Zein and Tannic Acid
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Solution Overview
Problem
Conventional dental adhesives require rigorous cleaning and drying of teeth prior to use, making them ineffective in wet oral environments such as those found in the mouth.
Innovation Solution
A method using a wet-setting adhesive comprising zein, tannic acid, and optionally a filler, applied to either the tooth surface, the dental material, or both, allowing the adhesive to cure and bond the dental material to the tooth surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional dental adhesives are used, then bonding strength can be achieved, but rigorous cleaning and drying of teeth is required prior to use
Solution Approach 1:
The adhesive formulation changes its properties in response to environmental parameters - specifically, it activates and sets in response to the wet oral environment (saliva, moisture) rather than requiring dry conditions. This parameter-driven activation eliminates the need for rigorous drying while maintaining bonding strength.
Solution Approach 2:
The invention converts the harmful effect of moisture (which traditionally prevents adhesion) into a beneficial activation trigger. The adhesive is designed to set and bond specifically when exposed to the wet oral environment, turning the previously detrimental moisture into the necessary condition for successful bonding.
2Reliability
If conventional adhesives are used in wet oral environment, then bonding can occur, but adhesion is compromised due to saliva and biofilms
Solution Approach 1:
The adhesive formulation converts the harmful presence of saliva and moisture into beneficial activation conditions. The chemical composition is designed to activate and set specifically in response to the wet oral environment, transforming the previously detrimental contamination into the necessary trigger for reliable bonding.
Solution Approach 2:
The adhesive uses a composite formulation combining multiple components (including zein protein, tannic acid, and functional additives) that work synergistically to provide both initial adhesion to contaminated surfaces and long-term bonding strength in the presence of oral fluids and biofilms.
3Strength
If rigorous cleaning and drying is performed, then adhesive bonding is improved, but patient comfort and convenience are reduced
Solution Approach 1:
The invention eliminates the need for uncomfortable and time-consuming drying procedures by designing an adhesive that activates in response to the natural wet state of the oral cavity. This converts the previously necessary harsh preparation step into a convenient, comfortable application process while maintaining bond strength.
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 adhesive provides strong bonding in saliva and saline solutions, effectively adhering dental materials to tooth surfaces and soft tissues in the mouth, even in the presence of biofilms.
Implementation Method 1
allowing the adhesive to cure to fix the dental material to the tooth surface, whereupon the dental material is bonded to the tooth surface
Data Source
AI summary
Methods of using wet-setting adhesives in oral environments, methods of using adhesives for bonding a dental material to a tooth, a gum, or a soft tissue in a mouth, a method of sealing a wound or closing an incision in a gum or a soft tissue, and a method of forming an adhesive coating on a tooth.