A. Silica glass
B. Organic matrix
C. Barium glass and strontium glasses
D. Fluoride particles
Related Mcqs:
- Which of the following provide opacity to composite ?
A. TEGDMA
B. BIS-GMA
C. Ti02
D. None of the above - All of the following statements about the differences between self-polymerizing acrylic resins and heat-cured resins are true EXCEPT______________?
A. The former have a lower molecular weight
B. The former have higher residual monomer content
C. The former are more porous
D. The former have greater transverse strength - Which of the following constituents is common in occlusal sealants, bonding agents, composite resins ?
A. BIS GMA
B. Polymethyl methacrylate
C. Benzoin methyl ether
D. Silica filter - Composite resins in comparison to acrylic have_______________?
A. Low compressive strength
B. High abrasive resistance
C. High water absorption
D. High polymerization shrinkage - Which one of the following is used as filler in composite resins ?
A. Quartz
B. Silicates
C. Zinc particles
D. Aluminium - Which one of the following is used as filler in composite resins ?
A. Quartz
B. Silicates
C. Zinc particles
D. Aluminium - Bonding of composite resins to tooth structure is by________________?
A. Covalent bond
B. Ionic bond
C. Mechanical
D. Vanderval forces - The opacity in ceramics is achieved by adding_______________?
A. Boric oxide
B. Copper oxide
C. Silica
D. Titanium oxide - Opacity around colonies of Clostridium perfringens is due to_________________?
A. Theta toxin
B. Lecithinase
C. Desmolase
D. Cytokinin - Residual monomer content of chemically activated resins is______________?
A. 0.2% to 0.5%
B. 2% to 5%
C. 0.3% to 0.5%
D. 2% to 5%
