CCE CCE Finishing & Surface Characterization 2

Question 1

External staining of a ceramic restoration is best performed:

Accepted Answer

On the fully glazed and fired surface using low-fusing stains fired at the stain firing temperature

Answer

External stains are low-fusing ceramic colorants applied to the glazed surface and fired at a stain/glaze firing temperature to permanently incorporate characterizations.

Question 2

Which staining technique produces the most durable long-term characterization in ceramic restorations?

Accepted Answer

Internal layering of stains within the ceramic body during buildup

Answer

Internal characterization stains fired within the ceramic layers are encapsulated and protected by overlying ceramic, making them far more durable than external surface stains.

Question 3

The ceramist applies a white opaque internal stain to simulate a hypocalcification spot. This stain should be placed:

Accepted Answer

Within the enamel ceramic layer at the appropriate depth

Answer

Hypocalcification simulation stains must be placed within the enamel ceramic layer at the correct depth so that overlying translucent ceramic creates the appearance of depth and authenticity.

Question 4

Which surface characteristic of a ceramic restoration most directly increases the risk of opposing tooth wear?

Accepted Answer

High surface roughness (Ra > 0.2 µm) from incomplete polishing

Answer

A rough ceramic surface (Ra > 0.2 µm) acts as an abrasive against opposing enamel, accelerating wear; properly polished or glazed ceramics minimize this risk.

Question 5

When adding brown check lines (craze lines) to simulate aged enamel on a ceramic restoration, the ceramist typically uses:

Accepted Answer

Dark brown external stain applied freehand before the stain firing

Answer

Brown or gray check lines are simulated using fine-tipped external stain application of brown ceramic stains before the final stain/glaze firing cycle.

(CCE) Certified Ceramist Practice Test

(CCE) Certified Ceramist Practice Test

CCE CCE Finishing & Surface Characterization 2