7. Which of the following in not an elastomeric impression material? a. Polysulphites b. Condensation c. Additional Sili

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7 Which Of The Following In Not An Elastomeric Impression Material A Polysulphites B Condensation C Additional Sili 1 (36.35 KiB) Viewed 19 times

7. Which of the following in not an elastomeric impression material? a. Polysulphites b. Condensation c. Additional Silicone d. Polyether e. Alginate hydrocolloid 8. Which of the following is false about ceramics? a. It is material made up of soil b. It is generally in silicate structure. c. It is an inorganic compound formed by oxygen wrapping the atoms of one or more small metals or semi-metals (such as silicon) with covalent or ionic chemical bonds. d. The word ceramic comes from the Greek word "keramikos" meaning burnt matter. e. Ceramics are not used as dentalmaterials. 9. Which of the following is false about dental porcelain? a. Being transmittance, light transmittance and biological compatibility are the mood important features of ceramic materials. b. Dental porcelain is one of the most important materials in the construction of fixed restorations. c. Porcelains are more resistant to compressive stresses than tensile, shear and bursal stresses. They are fragile, d. Metal infrastnature can be used to prevent fragility. e. Dental porcelains are not aesthetic at all. 10. Which of the following is not found in porcelain? a. FELDSPAT b. QUARTZ C. KAOLINE d. COLOR PIGMENTS e. AGAR AGAR 11. Which of the following is phase of zirconia? a. Monoclinic b. Tetrahedral c. Atomic d. Dynamic e. Elliptical