Etching agents are not dangerous and therefore do not require any safety measures.
a. True
b. False
Indicate whether the statement is true or false
Question 2
Why is the etchant or conditioner applied on the occlusal surface 2 to 3 mm beyond the area to be sealed?
a. To prevent fracture of the sealant and possible microleakage.
b. To ensure coverage of the tooth.
c. To make room for buffing after the sealant process.
d. Because there is shrinkage of the material after application.