The enamel surface is etched, or conditioned, by a phosphoric ...

[mspears3]

The enamel surface is etched, or conditioned, by a phosphoric acid (or another type of acid) solution. This solution is left on the tooth for _____.
 a. 15-30 seconds
  b. 1-2 minutes
  c. 60 seconds
  d. 5 minutes

Question 2

Attachment to the tooth surface is also known as _____.
 a. bonding
  b. coalescing
  c. filling
  d. etching

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Answer to Question 1

a
RATIONALE: The enamel surface is etched, or conditioned, by a phosphoric acid (or another type of acid) solution that is applied to a clean tooth with a brush, syringe, or small cotton-tipped applicator.It is very important for the area to be dry and the phosphoric acid to be placed correctly in order for a good bond to occur and for the sealant to last.

Answer to Question 2

a
RATIONALE: Attachment to the tooth surface, or bonding, occurs differently for the composite sealants than for the glass ionomer sealants.

[mspears3]

TYSM

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