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

[answerhappygod]

7 Which Of The Following In Not An Elastomeric Impression Material A Polysulphites B Condensation T Additional Sili 1 (30.71 KiB) Viewed 20 times

7. Which of the following in not an elastomeric impression material? a. Polysulphites b. Condensation t. Additional Silicone d. Polyether e. 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 Alginate hydrocolloid 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. a. FELDSPAT Which of the following is not found in porcelain? b. QUARTZ KAOLINE 11. d. COLOR PIGMENTS e. AGAR AGAR 13. Which of the following is phase of zirconia? a. Monodinic b. Tetrahedral c. Atomic d. Dynamic e. Eliptical 12. There are three different crystal structures of zirconium oxide: monoclinic at room temperature, tetragonal at "120 C, and cubic at 2370 C. These phases can transform into each other. What is the specific name of this transformation? a. Phase transformation b. Phase rehabilitation c. Phase unity d. Phase separation e. Phase fusion Which of the following is not a characteristic of zirconia? a. Low thermal conductivity b. To be opaque c High fracture resistance d. Chemically inert and corrosion resistant e. Being fluid