Quartz in investment material is added for_______________?

Related Mcqs:

1. Quartz is added to gypsum bonded investment to______________?

   A. Increase the strength B. Counter balance contraction of gypsum during heating C. aid in hygroscopic expansion D. Increase the shelf life of investment...

2. Quartz is Dental porcelain is______________?

   A. Strengthener B. Binder C. Pigment D. Crack minimzer...

3. Quartz tungsten light cure device minimum output of energy should not be less than_____________?

   A. 300 mw/sm2 B. 350 mw/cm2 C. 400 mw/cm2 D. 450 mw/cm2...

4. Investment material used for cobalt-chromium alloys is_____________?

   A. Gypsum bonded B. Phosphate bonded C. Silica bonded D. None of the above...

5. Waxes are used for_______________?

   A. Primary impression B. Corrective impressions C. Impression of single tooth D. None of the above...

6. Frozen slab technique of mixing zinc phosphate is used for_______________?

   A. Cementing crowns B. Temporary dressing C. base D. cementing orthodontic bands...

7. Gillmore needle is used for_______________?

   A. Testing the strength of plaster of paris B. Evaluating the setting time of plaster of pris C. Testing the metal hardness D. Testing the purity of noble metals...

8. K2SO4 in agar-agar is for_______________?

   A. Accelerating the setting stage of gypsum B. Increase strength C. Give dimensional stability D. None of the above...

9. Perforated impression tray are used for_______________?

   A. Alginate B. Zinc oxide-eugenol C. Agar-agar D. Impression compound...

10. Use of dimethyl-P-toluidine is indicated for_______________?

    A. Thermal polymerization of acrylic B. Chemical polymerization C. Retarding the polymerization reaction D. To inhibit the action of benzoyl peroxide...