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
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.
You might also like to view...
What practice that is regulated by the FDA is described as physicians prescribing approved medications for use other than their intended indication?
A) Off-label usage B) Unintended usage C) Unintended consequences D) Malpractice
Which of the following is NOT a common problem affecting collections?
a. Estates b. Bankruptcies c. Skips d. Divorces