Pit and Fissure Sealants - Taylor

Question 1

a pit and fissure surface on a permanent first molar is ______ times more likely to be carious or restored after 15 years (than what? I am not sure, the slides didn’t say)

Answer 1

7.5

Question 2

T/F Carious risk for teeth that have lost some or all of the sealant is greater than for teeth that were never sealed.

Answer 2

False - it found that the risk does not increase if the teeth have lost some or all of the sealant

therefore, it has been recommended to provide sealants to children even if follow-up cannot be ensured

Question 3

if patients have well-coalesced pits and fissures are sealants a cost effective choice or a non cost effective choice

Answer 3

non cost effective

Question 4

when are sealants contraindicated

Answer 4

when there is rampant caries like interproximal caries

Question 5

T/F glass ionomer is considered a provisional sealant

Answer 5

True because they come off easily

Question 6

When do we put on glass ionomer sealants?

Answer 6

when isolation is not easily achievable and then when isolation is easier we put on resin

Question 7

silverdiamine sealant is effective at what?

Answer 7

inhibiting carious lesion progression

Question 8

what are 2 downsides to silverdiamine sealants

Answer 8

they require follow-up care

they stain the carious lesion black.

Question 9

What effect do silverdiamine sealants have on bacteria and MMPs?

Can it be used as a diagnostic tool?

Answer 9

they reduce bacteria and MMPs

yes they are a great diagnostic tool

Question 10

T/F sealants need to be reevaluated after placement for effectiveness

Answer 10

True

Question 11

what is the recommended % of acid in the etchant?

what is the recommended time of etching?

Answer 11

30-50% phosphoric acid

etch for 20 seconds

Question 12

after you etch, you should wipe the enamel with a cotton palette T/F

Answer 12

false, it destroys the retentive enamel you just created with the etch.

Question 13

enamel on primary teeth is more resistant to etch than permanent teeth. T/F

Answer 13

True

Question 14

why should you not use pumice or aluminum oxide to clean the teeth before you place sealants?

Answer 14

because they leave behind particulate matter in the deep recesses of the pits.

Question 15

T/F additional acid etching is needed when the enamel is prepared with aluminum oxide air abrasion or laser for adequate resin bonding to enamel

Answer 15

True

Question 16

a combination of restoration of carious occlusal surfaces as well as sealing the remaining pits and fissures is highly effective. T/F

Answer 16

true

Question 17

after 8-10 years one study found that _____% of sealed surfaces remained caries free

Answer 17

85%

Question 18

what percent of sealants need repair?

Answer 18

5-10%

Question 19

T/F self-etch bonding agents provide as good retention as acid etch technique sealants

Answer 19

False - they may not provide the same level of retention

Question 20

characteristics of glass ionomers

Answer 20

considered a provisional sealant
continuous fluoride release
deeply fissured primary molars
Wet field
Partially erupted molars 
less shrinkage during setting

Question 21

Considerations when sealants may not be cost effective

Answer 21

well-coalesced pits and fissures
caries unlikely
Poor patient cooperation

Question 22

T/F Enamel rich with fluorhydroxyapatite and primary teeth

may be resistant to etching and may need to be exposed for longer periods

Answer 22

true

Question 23

T/F aggressive use of fissure opening may remove the last enamel layer over dentin at the bottom the fissures and become more susceptible to caries if sealant is lost

Answer 23

True

Question 24

T/F resin based sealant have higher retention rates compared to glass ionomer sealants

T/F glass ionomer sealants exhibit good short term retention

Answer 24

true

true

Question 25

rubber dam characteristics

Answer 25

helps child anxiety
maintain clear working field
controls lips and tongue
saves time
reduces margin of error
better detection of pulp exposure and vitality