Denture Soft Liners and Artificial Teeth Quiz

What are the two main families of polymers used commercially as soft liners?

• Polyester and Polyurethane

• Acrylics and Polyethylene

• Acrylics and Silicones

• Silicones and Polypropylene

Which type of plasticizer used in soft acrylic liners is unbound to the acrylic and results in a loss of resilience during use?

• Extrinsic plasticizer

• Intrinsic plasticizer

• Internal plasticizer

• Reactive plasticizer

What is the greatest drawback of Room Temperature Vulcanizing (RTV) silicones as soft liners?

• Poor abrasion resistance

• Low tear strength

• Low bond strength to dentures

• Attacked by cleansers

What is the main advantage of Tissue Conditioners as temporary soft liners?

• High cohesive strength

• Ideal viscoelastic properties

• Not affected by cleansers

• Can be used for years

Which type of artificial teeth is more resilient and can be used in case of diabetic patients?

• Ceramic teeth

• Metal teeth

• Porcelain teeth

• Acrylic teeth

What is the main disadvantage of Porcelain teeth compared to Acrylic teeth?

• Resilient

• Low wear resistance

• High density

• Low impact strength

Which type of artificial teeth is more likely to transfer pressure to the bone underneath gums, accelerating bone loss?

• Acrylic teeth

• Metal teeth

• Ceramic teeth

• Porcelain teeth

What is the main advantage of Acrylic teeth over Porcelain teeth?

• Low density

• High impact strength

• High wear resistance

• High cost

What is the main disadvantage of Acrylic teeth compared to Porcelain teeth?

• High click sound

• Low hardness/wear

• Low resilience

• Low staining

What is the main advantage of Heat Cured Silicones over Room Temperature Vulcanizing (RTV) silicones?

• Higher resilience

• More resistant to cleansers

• Better adhesion to acrylics

• Less affected by water