A. The former have a lower molecular weight
B. The former have higher residual monomer content
C. The former are more porous
D. The former have greater transverse strength
Related Mcqs:
- The % of free monomer in a heat – cured acrylic resin is_______________?
A. 3% to 5%
B. 8% to 10%
C. 0.2% to 0.5%
D. 0.6% to 0.8% - In heat cure denture base acrylic resins the monomer is___________?
1. Methacrylate
2. Ethylmethacrylate
3. Methyl ethyl methacrylate
4. Polymethylmethacrylate - Composite resins in comparison to acrylic have_______________?
A. Low compressive strength
B. High abrasive resistance
C. High water absorption
D. High polymerization shrinkage - Acrylic resins were first introduced as a denture base material in______________?
A. 1925
B. 1937
C. 1951
D. 1956 - Acrylic resins are used for______________?
A. Anterior restorations
B. Temporary bridges
C. Denture base
D. All of the above - Polymerisation of heat-cured methyl methacrylate is initiated by______________?
A. Tertiary amine
B. Benzoyl peroxide free radical
C. Hydroquinone
D. Methyl ether - In self-cure acrylic resin, activator is_____________?
A. Toluidine
B. Quaternary ammonium compound
C. Benzoyl peroxide
D. Tertiary amine - To prevent porosity in self-cure acrylic resin, curing should be carried in______________?
A. Cold water
B. Hot water
C. Under tap water
D. Under vacuum pressure - All of the following statements are true for zinc oxide eugenol cements except______________?
A. Equal lengths of base paste and accelerator paste are mixed together until the mix has a uniform colour
B. Increase in temperature and humidity shorten the setting time
C. The mix appear thick at the start of mixing but after 30 seconds of additional spatulation it becomes more fluid
D. Water accelerates but heat retards the setting of zinc oxide eugenol cements
E. Both C & D - All of the following statements regarding biovailability of a drug are true except______________?
A. It is the proportion (fraction) of unchanged drug that reaches the systemic circulation
B. Biovailability of an orally administered drug can be calculated by comparing the area under cure (o-a) after oral and intravenous (IV) administration
C. Low oral biovailability always and necessarily mean poor absorption
D. Biovailability can be determined from plasma concentration or urinary excretion data
