SEALANTS CH. 57,58,59 EXAM
QUESTIONS AND ANSWERS
Which should be done if a sealant is found to be partially lost during a subsequent
examination? - Correct Answers -Freshen the remaining portion of sealant adjacent to
the lost portions, re-etch the enamel, and apply new sealant to replace the missing
portion
The first step in placing dental sealants is to ____________ the surface - Correct
Answers -clean
enamel has what appearance when dry? - Correct Answers -frosty
What is the primary reason that few children are protected by dental selants? - Correct
Answers -there is a lack of public awareness
Properly placed dental sealants are _______ % effective in protecting against caries in
sealed surfaces - Correct Answers -100%
What is the most common cause of sealant loss? - Correct Answers -Moisture
contamination during placement
the retention of sealant is obtained by etching the enamel with what? - Correct Answers
-phosphoric acid
why are sealants contradicted with proximal caries? - Correct Answers -posterior
proximal tooth preparation will usually include the occlusal pits and fissures
the technique is sometimes used before sealant application to open fissures and
remove slight decay - Correct Answers -microabrasion
which type of sealant is polymerized by photo initiators in the resin that are sensitive to
light? - Correct Answers -light-cured
Using a small round or needle-shaped bur or diamond rotary instrument prior to
placement of a dental sealant can allow for inspection for the presence of caries, and -
Correct Answers -provide increased retention of the sealant material
what technique error most commonly leads to sealant failure? - Correct Answers -
moisture
QUESTIONS AND ANSWERS
Which should be done if a sealant is found to be partially lost during a subsequent
examination? - Correct Answers -Freshen the remaining portion of sealant adjacent to
the lost portions, re-etch the enamel, and apply new sealant to replace the missing
portion
The first step in placing dental sealants is to ____________ the surface - Correct
Answers -clean
enamel has what appearance when dry? - Correct Answers -frosty
What is the primary reason that few children are protected by dental selants? - Correct
Answers -there is a lack of public awareness
Properly placed dental sealants are _______ % effective in protecting against caries in
sealed surfaces - Correct Answers -100%
What is the most common cause of sealant loss? - Correct Answers -Moisture
contamination during placement
the retention of sealant is obtained by etching the enamel with what? - Correct Answers
-phosphoric acid
why are sealants contradicted with proximal caries? - Correct Answers -posterior
proximal tooth preparation will usually include the occlusal pits and fissures
the technique is sometimes used before sealant application to open fissures and
remove slight decay - Correct Answers -microabrasion
which type of sealant is polymerized by photo initiators in the resin that are sensitive to
light? - Correct Answers -light-cured
Using a small round or needle-shaped bur or diamond rotary instrument prior to
placement of a dental sealant can allow for inspection for the presence of caries, and -
Correct Answers -provide increased retention of the sealant material
what technique error most commonly leads to sealant failure? - Correct Answers -
moisture
