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Flashcards in Lecture 3 Deck (21)
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1

Describe the cariostatic properties of sealants.

Physical obstruction of pits and grooves

Decrease viable bacterial counts in sealed occlusal fissures

Prevents new bacterial colonization

Prevents penetration of fermentable carbohydrates and production of acid with bacteria

2

Sealants recalled after 15 years: ___% of surfaces were sound, ___% were carious/restored.

Group without sealants: __% were carious or restored

A pit and fissure surface (not sealed) on a permanent first molar is ___times more likely to be carious or restored after 15 years.

69
31

83

7.5

3

True or false...
Sealants are safe/effective. Their effectiveness increase with good technique. You must follow up and reseal deficiencies. Benefits increase for high risk (deep fissures and pits, incipient caries lesions)

True

4

True or false... you may never seal over decalcifications

False. You may as long as you dont see any radiographic evidence of caries under the enamel.

5

Evidence based reviews have found that caries risk for sealed teeth that have lost some or all sealant (does/does not) exceed the risk for never-sealed teeth

Does not

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

6

What are some considerations when sealants may not be cost effective?

Well-coalesced pits and fissures

Caries unlikely

Poor patient cooperation

7

When are sealants contraindicated?

Rampant caries

Interproximal lesions are present

Decay reaches dentin

8

Which are better for long term sealants.. glass ionomer or resin-based sealants?

Resin based

Glass ionomer are provisional sealants

9

True or false... reevaluation is important for resin sealants

True

10

What is the recommended acid concentration and etching time?

30-50% acid

20 second etching time

11

Overall, __% of restored surfaces (with sealants) remained caries-free 9 years after treatment

88%

12

Between __% and ___% of sealants need repair upon periodic recall

5%-10%

13

____ teeth are more susceptible to restoration failures that ___ teeth.

Primary

Permanent

14

What clamp should you use on primary molars?

8a

15

What bur do you use for pedo restorations? How tall is it?

330 bur

1.5mm

16

The isthmus of a class 1 should be ___ the width of the intercuspal width

1/3rd

17

In primary teeth, for small surface restorations, should you use amalgam or composite?

Composite

18

What is the prep for a primary MOD?

Stainless still crown

19

True or false... bruxism is more common in adults than in children

False. Bruxism is very common in children

20

In a class 3 prep for primary canines, the proximal box should be directed at an angle towards the ___

Gingiva

21

When are stainless steel crowns indicated?

Primary or young permanent teeth with extensive, large or multisurface lesions

First primary molars with mesial interproximal lesions

Hyperplastic teeth

Teeth w/ hereditary anomalies (imperfecta)

Disables individual when oral hygiene is extremely poor

Abutment for space maintenance or prosthetic appliance