A. Thermal polymerization of acrylic
B. Chemical polymerization
C. Retarding the polymerization reaction
D. To inhibit the action of benzoyl peroxide
Related Mcqs:
- The base paste of the condensation poly sillicone has a low molecular weight dimethyl siloxane with a terminal-group_______________?
A. Marcaptan group
B. Hydroxyl group
C. Silane group
D. Virryl group - Acid-etching is done for_______________?
A. 30 seconds
B. 60 seconds
C. 90 seconds
D. 120 seconds - Which of the following procedure is indicated to produce cross-linking in the polymerization of linear chains of acrylic_______________?
A. Addition of grain refining agents
B. Addition of difunctional monomers
C. Increasing the amount of heat required for linear polymerization
D. Incorporation of terminating agents - Frozen slab technique of mixing zinc phosphate is used for_______________?
A. Cementing crowns
B. Temporary dressing
C. base
D. cementing orthodontic bands - 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 - 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 - Perforated impression tray are used for_______________?
A. Alginate
B. Zinc oxide-eugenol
C. Agar-agar
D. Impression compound - Waxes are used for_______________?
A. Primary impression
B. Corrective impressions
C. Impression of single tooth
D. None of the above - Quartz in investment material is added for_______________?
A. Strength
B. Expansion components for casting shrinkage
C. Decrease strength
D. Contraction - Crucible indicated for casting base metal alloys is______________?
A. Carbon crucible
B. Clay crucible
C. Quartz crucible
D. High melting plastic crucible
