A. Translucency
B. Refractive optics
C. Metamerism
D. Opacification
A. Rubber matrix
B. Glass
C. Plastic
D. Resin matrix
A. Shape and size of particle
B. Uniform distribution of particle size
C. Number of particles
D. None of the above
A. Boric oxide
B. Copper oxide
C. Silica
D. Titanium oxide
A. Have a higher coefficient of thermal expansion than acrylic teeth:
B. Have a lower abrasion resistance than enamel
C. Should be used where the inter dental clearance is small
D. Have a higher abrasion resistance than gold
A. Alumino silicate powder and phosphoric acid
B. Aluminosillicate powder and polyacrylate
C. Zinc oxide powder and phosphoric acid
D. Zinc oxide powder and polyacrylate liquid
A. 15 microns
B. 25 microns
C. 50 microns
D. 100 microns
A. Polyacrylic acid is liquid
B. Chemical bond to tooth structure
C. Chelation
D. Substitution o eugenol by EBA to increase strength of cement
A. Zinc acetate
B. Barium sulphate
C. Zinc sulphate
D. Barium chloride
A. 3-4
B. 4-5
C. 6-7
D. 7-8