A. Plastic
B. Stainless steel
C. Iron
D. None of the above
Related Mcqs:
- Radio opacity to composite resins is rendered by_______________?
A. Silica glass
B. Organic matrix
C. Barium glass and strontium glasses
D. Fluoride particles - 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 - Which one of the following is used as filler in composite resins ?
A. Quartz
B. Silicates
C. Zinc particles
D. Aluminium - For photo-curing the composite resin the light source______________?
A. Should be held at a millimeter distance from the restoration
B. Need no protection while in use
C. Will cure composite upto a depth of 5 millimeter thickness
D. Is fiber optic - Which of the following provide opacity to composite ?
A. TEGDMA
B. BIS-GMA
C. Ti02
D. None of the above - About polymerization shrinkage of composite all are true, except______________?
A. Polymerization shrinkage is greater if bonded surface area is lesser than unbounded surface area
B. Polymerization shrinkage is high if within the enamel margins
C. Acid etching and priming will decrease polymerization shrinkage
D. Microleakage can occur because of polymerization shrinkage - The commonly used laser for curing composite resin is______________?
A. Nd:YAG
B. CO2
C. ER:YAG
D. Argon - Bonding of composite resins to tooth structure is by________________?
A. Covalent bond
B. Ionic bond
C. Mechanical
D. Vanderval forces - Which of the following is an example of a composite material ?
A. A filled resin
B. Colloidal silica
C. Gold alloy
D. Wax - Composite has_______________?
A. Resin
B. Filler
C. Resin & Filler
D. None
