Exp Func Ch 59 Sealants

Question 1

Resin material applied to the pits and fissures of teeth

Answer 1

Dental sealants

Question 2

The process of changing a simple chemical into another substance that contains the same elements

Answer 2

Polymerization

Question 3

A technique used to open fissures before sealant is placed

Answer 3

Microabrasion

Question 4

A sealant material that does not contain filler particles

Answer 4

Unfilled resin

Question 5

A salt or ester or acrylic acid

Answer 5

Acrylate

Question 6

Sealant firmly adheres to the tooth surface because of…

Answer 6

Sealant retention

Question 7

Why is clear sealant material less desirable

Answer 7

More difficult to evaluate

Question 8

What is the difference between filled and unfilled sealants with regard to retention rates

Answer 8

No difference

Question 9

What is the range of shelf life of sealant materials

Answer 9

18-36 months

Question 10

What are sealants and what do they provide

Answer 10

“Plastic coverings” provides mechanical barrier against cariogenic bacteria

Question 11

Caries risk factors

Answer 11

Accumulation of plaque, cariogenic diet, history of caries, low fluoride intake, pit and fissure anatomy

Question 12

Do teeth need to be fully erupted before placing sealants

Answer 12

No

Question 13

Can you do sealants if there are caries present interproximally

Answer 13

No

Question 14

What does frank mean

Answer 14

Suspicious

Question 15

What type of sealant material release fluoride and is moisture tolerant

Answer 15

Glass ionomer

Question 16

What are glass ionomer sealants a good choice for

Answer 16

Partially erupted, difficult to isolate transitional sealant

Question 17

What do resin based sealants provide

Answer 17

Higher bond strengths and longer retention

Question 18

Self etch technique

Answer 18

Clean teeth, no cleaning medium containing fluoride or oils (affects adhesion), rinse, isolate, dry, activate L-pop

Question 19

How to apply L-Pop

Answer 19

Churning or spinning motion to applicator for 5 seconds to mix adhesive

Question 20

What color should the applicator on the L-Pop be when properly activated

Answer 20

Light yellow tint. If not unfold and reactivate. Clear indicates improper activation

Question 21

How long do you scrub adhesive onto surface to be sealed

Answer 21

15 seconds

Question 22

How far in advance can the l-pop be activated

Answer 22

10 minutes

Question 23

What is the highest risk period for decay after a tooth erupts

Answer 23

Within 3 yrs of eruption

Question 24

Sealant material shouldn’t be stored near

Answer 24

In proximity to eugenol-containing products

Question 25

Etchant contains what chemical

Answer 25

Phosphoric acid

Question 26

Self cured sealants are supplied with two parts...

Answer 26

Base and catalyst

Question 27

Why are sealants contraindicated on teeth with proximal decay

Answer 27

Sealant would break off because if filling placed to restore after sealant placed

Question 28

What percent of low income children are sealants used

Answer 28

30

Question 29

What is the most important factor in the success of a sealant

Answer 29

Proper placement/retention

Question 30

What teeth are candidates for sealants

Answer 30

Teeth with deep pits and fissures preferably recently erupted teeth

Question 31

What does carries risk assessment involve

Answer 31

Premolars/molar deep grooves of some others permanent, primary molars

Question 32

Can you place a sealant over incipient lesions

Answer 32

Yes

Question 33

What is the advantage of a tinted sealant over clear/colorless sealant

Answer 33

Easier to diagnose, easy to see during application and checking for retention

Question 34

What is the difference between filled and unfilled sealants

Answer 34

Filler more wear resistant, unfilled, unfilled does not require occlusal adjustment because natural wear is sufficient filled does with possible adjustment

Question 35

What technique error most commonly leads to sealant failure

Answer 35

Poor isolation

Question 36

What item could be used in interproximal spaces to prevent the etchant from contacting adjacent teeth during the etchant procedure

Answer 36

Mylar matrix strips or metal matrix band

Question 37

What technique can be used to clean the teeth other than using prophy paste

Answer 37

Air polish

Question 38

What situations indicate the sealant may need to be replaced or adjusted

Answer 38

Too high, sealant comes off when retention checked, blocks contact area, holes

Question 39

What is the benefit of a fluoride releasing sealant

Answer 39

Makes pit or fissure more resistant to decay if sealant lost, fluoride released from sealant creates layer at base of sealed groove to re-mineralize incipient

Question 40

Pit and fissure sealants are especially useful through the carries active period Which is

Answer 40

6-15 years

Question 41

What happens to the enamel if it is etched but not sealed

Answer 41

Will re-mineralize after 24 hour exposure to calcium phosphate salts in saliva

Question 42

If the tooth becomes contaminated with moisture, after it is etched, what should you do

Answer 42

Reapply etch for five seconds and rinse again

Question 43

How would you describe a pit? A fissure?

Answer 43

Pit=deep pocket fissure= groove

Question 44

According to studies, with proper maintenance and recall appointment, what is the success rate of sealants after a decade or more

Answer 44

80%

Question 45

Most sealant failures occur within the first

Answer 45

3 to 6 months

Question 46

What kind of barrier do sealants provide

Answer 46

Mechanical barrier against cariogenic bacteria

Question 47

After a sealant has been placed and before it is cured, what should you do

Answer 47

Illuminate bubbles with explore and used to spread the sealant

Question 48

What happens to the tooth if the sealant is partially lost

Answer 48

Microleakage occurs and decay under the sealant

Question 49

Unfilled sealants that are high after they are cured, will wear down and do not need to be adjusted

Answer 49

True

Question 50

If a child has a tooth that hasn't erupted yet what material would be used to place a sealant

Answer 50

You can't

Question 51

What kind of sealant material would be used for a transitional sealant

Answer 51

Glass ionomer

Question 52

Is there a difference between resin base sealants and glass ionomer sealants

Answer 52

Resin base provides hire bond strength and longer retention, glass ionomer moisture tolerant releases fluoride

Question 53

What kind of damage can a light cure cause

Answer 53

Retinal