Which of the following constituents is common in occlusal sealants, bonding agents, composite resins ?
A. BIS GMA
B. Polymethyl methacrylate
C. Benzoin methyl ether
D. Silica filter
A. BIS GMA
B. Polymethyl methacrylate
C. Benzoin methyl ether
D. Silica filter
A. porosity
B. Shrinkage
C. Tooth breakage
D. Water absorption
The most important disadvantage of acrylic denture base is_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Silica glass
B. Organic matrix
C. Barium glass and strontium glasses
D. Fluoride particles
Radio opacity to composite resins is rendered by_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Melts at 100°C
B. Softens at 100°C
C. Still requires heat for polymerization
D. Produces heat during polymerization
Acrylic (cold cure)______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins A. Thermal polymerization of acrylic
B. Chemical polymerization
C. Retarding the polymerization reaction
D. To inhibit the action of benzoyl peroxide
Use of dimethyl-P-toluidine is indicated for_______________? Read More »
Dental Materials, Medical Mcqs, Restorative Resins 1. Hard thick central area
2. Thin Palatal area
3. Thin area of flanges
4. Porosity is uniformly distributed
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