9 Questions
What is the main factor that determines the bond (retention) of composite resin to the tooth structure?
Micromechanical retention through micropores produced by acid etching.
What is the main difference between micro-filled & flowable composites and micro-hybrid & nano-filled composites?
Micro-filled & flowable composites have low filler loading, while micro-hybrid & nano-filled composites have high filler loading.
What is the main difference between the bond (retention) of amalgam and glass ionomer to the tooth structure?
The bond of amalgam depends on mechanical retention through undercut, while the bond of glass ionomer depends on chemical bond (adhesion).
What is the main factor that determines the mechanical properties of micro-filled and flowable composites?
Low filler loading
What is the main factor that determines the bond (retention) of composite resin to the tooth structure?
Micromechanical retention through micropores
The higher the filler loading in a composite, the lower its mechanical properties.
False
What is the main factor that determines the bond (retention) of amalgam to the tooth structure?
Mechanical retention through undercut
The retention of composite resin to the tooth structure is dependent on micromechanical retention through micropores.
True
Compomer has higher wear resistance than composite resin.
False
Study Notes
Retention of Composite Resin to Tooth Structure
- The main factor that determines the bond (retention) of composite resin to the tooth structure is micromechanical retention through micropores.
Types of Composites
- Micro-filled & flowable composites are different from micro-hybrid & nano-filled composites.
- The main difference lies in their composition and properties.
Retention of Amalgam and Glass Ionomer
- The main difference between the bond (retention) of amalgam and glass ionomer to the tooth structure is in their bonding mechanisms.
- Amalgam relies on mechanical retention, while glass ionomer uses chemical bonding.
Mechanical Properties of Composites
- The main factor that determines the mechanical properties of micro-filled and flowable composites is the type and amount of filler loading.
- A higher filler loading in a composite corresponds to lower mechanical properties.
Comparative Properties
- Compomer has higher wear resistance than composite resin.
Test your knowledge on composite resin materials with our quiz on Micro-filled & flowable composites versus Micro-hybrid & nano-filled composites. Learn about the differences in filler loading and resulting mechanical properties, and understand the importance of micromechanical retention for successful bonding to tooth structure. Take the quiz now and become an expert on composite resins!
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