Quiz on Denture Processing

What is the purpose of flasking in denture processing?

• To finish and polish the dentures

• To eliminate wax from the dentures

• To cool down the dentures after curing

• To produce a mold of the waxed-up denture for packing and processing of the acrylic material

What is the first step in the procedure of flasking?

• Preparation of the waxed denture for flasking

• Selection of the suitable flask

• Pouring the plaster or stone

• Applying separating medium

What is the purpose of using cellophane sheets during trial packing of the acrylic resin?

• To prevent the resin from curing too quickly

• To increase the strength of the acrylic resin

• To add color to the dentures

• To allow the flask to be re-opened for inspection without adherence of the cast to the tissue surface of the uncured resin

Which method involves constantly injecting acrylic resin into the mold during processing?

• The Injection molding method

• The compression molding method

• The cooling method

• The finishing method

What is the process of polymerization of acrylic resin known as?

• Deflasking

• Curing

• Cooling

• Finishing

Why should the flask be cooled slowly after curing?

• To prevent the acrylic resin from sticking to the stone

• To speed up the finishing process

• To minimize internal stress and subsequent warpage of the denture

• To increase the glossiness of the dentures

What is the objective of the deflasking procedure?

• To cool down the dentures

• To eliminate any remaining wax from the dentures

• To add final touches to the dentures

• To remove the denture from the investment material without breaking the denture or the cast

What is the purpose of finishing in denture processing?

• To remove any stone remaining around the teeth and any nodules of acrylic resin on the surfaces of the denture base

• To pack the resin material into the mold

• To cure the acrylic resin

• To cool down the dentures

What causes the problem of porosity of the denture base?

• Insufficient dough resin during packing and insufficient pressure during curing

• Rapid cooling

• Dry mix

• Improper flasking or deflasking

What does crazing in the denture base indicate?

• Sandy appearance

• Pores found internally or externally

• Cracked or fractured teeth

• Formation of small cracks, indicating the beginning of fracture