DENT MAT QUIZ 13-15

What are the uses of resin in dentistry?

• Restoration of missing teeth

• Restoration of missing tooth structure

• Denture base

• All of the above

What is the composition of acrylic resin in LIQUID?

• Methyl methacrylate monomer

• Benzoyl peroxide monomer

• Dibutyl phthalate monomer

• All of the above

Which property of denture base resin is low?

• Strength

• Flexibility

• Resistance to failure in fatigue

• Thermal conductivity

Which processing technique is most commonly used for acrylic denture base?

• Dough molding technique

• Injection molding

• Heat curing

• Chemical curing

What is the purpose of benzoyl peroxide in acrylic resin?

• To make the material translucent

• To improve fracture resistance

• To initiate polymerization

• To provide radiodensity

What is the function of dyed synthetic fibers in acrylic resin?

• To improve strength

• To simulate blood vessels

• To increase thermal conductivity

• To provide radiopacity

Acrylic are supplied in different forms, like:

• Powder-liquid

• Gels

• Sheets or blanks

• All of the above

In dental resins, the composition of liquid has disadvantage which is _________, water sorption and decreases handling qualities.

• Decreased cast fracture

• Increased air sorption

• Decreased impression qualities

• Increased transverse deflection

Which processing technique for acrylic denture base requires a less highly trained technician?

• Dough molding technique

• Injection molding

• Heat curing

• Chemical curing

What is acrylic resin used for in dentistry?

• Used to initiate free radical chain polymerization of the monomer

• Used for full denture bases and ‘gumwork’ for removable devices

• Use of a clinically acceptable waxed up denture in a stone cast

• Used to build up vertical walls around the impression