Class I

Question 1

why we can not use pumice with flavoring agents, glycerin, or fluorides

Answer 1

it act as contamination and will compromise the adhesive procedure

Question 2

carbide or diamond burs?

Answer 2

Both carbide and diamond burs can be used effectively ( carbide is less aggressive and preferable).

Question 3

A, The bur is held parallel to the long axis of the crown. Initial pulpal depth is …… from the central groove.

Answer 3

1.5 mm

Question 4

Microfilled Composite

Answer 4

• Filler particle size of 0.04 microns.
• Very polishable and excellent esthetic.
• Unsuitable for stress bearing restorations.
• Contraindicated for the restoration of posterior teeth.

Question 5

are a combination of
nanometer and micrometer-sized fillers.

Answer 5

Nanohybrids composite

Question 6

composite resins are a
combination of small and large
micrometer sized filler particles.

Answer 6

Microhybrid composite

Question 7

Nanocomposites

Answer 7

nanometer sized filler particles and polish to a very
high luster which is maintained over time.

Question 8

what is the difference between micro/nanohybrid and nanofilled composites in mechanical
and clinical performance

Answer 8

there is NO difference