CDC Material Selection & Aesthetic Customization 2

Question 1

Which ceramic system is most appropriate for fabricating a high-strength posterior crown that also requires translucency matching natural dentition?

Accepted Answer

Zirconia-reinforced lithium silicate (ZLS)

Answer

Zirconia-reinforced lithium silicate combines high flexural strength with acceptable translucency, making it suitable for posterior crowns requiring aesthetics.

Question 2

When customizing the chroma of a ceramic restoration, increasing chroma primarily affects which optical characteristic?

Accepted Answer

Saturation of the hue

Answer

Chroma refers to the saturation or intensity of a hue; increasing chroma makes the color appear more vivid and saturated.

Question 3

A patient presents with hypocalcified white spot lesions on adjacent teeth. Which layering technique best mimics this internal characterization?

Accepted Answer

Incorporating opacious dentin internally before adding enamel layer

Answer

Opacious dentin layered internally replicates the subsurface opacity of hypocalcification spots, creating depth and realism.

Question 4

Which factor most significantly influences the selection between press-ceramic and CAD/CAM-milled ceramic for an anterior veneer?

Accepted Answer

Required surface texture and marginal fit precision

Answer

CAD/CAM milling offers superior marginal accuracy while press ceramics allow precise control of surface texture and optical characterization during wax-up.

Question 5

Fluorescence in natural teeth originates primarily from which structure?

Accepted Answer

Dentin collagen and organic matrix

Answer

Dentin's organic collagen matrix fluoresces under UV light, giving natural teeth their characteristic blue-white glow in black-light conditions.

(CDC) Certified Dental Ceramist Practice Test

(CDC) Certified Dental Ceramist Practice Test

CDC Material Selection & Aesthetic Customization 2