EFDA Sealant Application and Polishing 2

Question 1

Which type of pit and fissure sealant requires a curing light to polymerize?

Accepted Answer

Light-cured (photopolymerized) sealant

Answer

Self-cured (autopolymerizing) sealant

Answer

Glass ionomer sealant

Answer

Fluoride varnish

Question 2

What is the primary purpose of applying a conditioner (etchant) before sealant placement?

Accepted Answer

To create microporosities in enamel for mechanical retention

Answer

To remove stains from the enamel surface

Answer

To sterilize the tooth surface

Answer

To desensitize the dentin before bonding

Question 3

A patient returns six months after sealant placement and the sealant appears partially missing. What is the MOST likely cause?

Accepted Answer

Moisture contamination occurred during the bonding step

Answer

The tooth was over-etched during preparation

Answer

The curing light was held too close to the sealant

Answer

Excessive sealant material was applied

Question 4

When evaluating sealant integrity at a recall appointment, which instrument is most appropriate?

Accepted Answer

Explorer

Answer

Periodontal probe

Answer

Mouth mirror only

Answer

Articulating paper

Question 5

Which teeth are considered the BEST candidates for pit and fissure sealants?

Accepted Answer

Permanent molars with deep occlusal pits and fissures

Answer

Primary incisors with deep lingual pits

Answer

Teeth with existing Class II restorations

Answer

Fully erupted teeth with open, shallow fissures

Question 6

How long should phosphoric acid etchant typically remain on enamel before rinsing?

Accepted Answer

15–30 seconds

Answer

5–10 seconds

Answer

45–60 seconds

Answer

2 minutes

Question 7

After rinsing the etchant, properly etched enamel should appear:

Accepted Answer

Chalky white or frosted

Answer

Shiny and glassy

Answer

Slightly yellow

Answer

Translucent and wet