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RDA > Sealants > Flashcards

Sealants Flashcards

1
Q

What is best used to polish the pits and fissures?

A

Prophet brush

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2
Q

What instrument is used to help assure complete sealant material penetration in the pits and fissures?

A

Explorer

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3
Q

What instrument is used to inspect for sealant voids and etched surfaces, remove air bubbles and check the sealants retention?

A

Explorer

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4
Q

What are the positives of sealant placement?

A

Prevents cavities from forming

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5
Q

Method of applying sealant material on the pits and fissures:

A

Brushing the material over the grooves

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6
Q

Who can apply pit and fissure sealants?

A

RDA under direct supervision
RDH
RDAEF

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7
Q

Prior to pit and fissure sealant certification what must dental assistants have?

A

75% or better on written exam
4 patients w/ 75% or better on each
All legal paperwork signed

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8
Q

Sealants are more frequently placed on which teeth?

A

Molars and premolars

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9
Q

What are the enchant characteristics and indications?

A

Chalky; Matte film; Cloudy
Preps surface for bonding
Disinfects and dries tooth surface

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10
Q

Characteristics of properly placed sealants:

A

Explorer glides over grooves, doesn’t stick
Smooth, cloudy look
No bubbles
No overfill

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11
Q

When are sealants not to be placed?

A

When the patient has preexisting cavities or fillings

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12
Q

How soon does sealant failure occur?

A

3-6 months

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13
Q

Sealant adhesion depends primarily on what type of bonding mechanism?

A

Self cure

Light cure

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14
Q

What is included in the concept of bonding?

A

Etching
Sealant placement
Proper wetting of pit and fissures to apply properly

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15
Q

If the etch material comes in contact with the skin or face what must be done immediately?

A

Flush area w/ large amounts of water

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16
Q

What is correct to do if anyone gets prima dry in their eyes?

A

Rinse eyes immediately

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17
Q

What is the best isolation method when applying sealants?

A

Dental dam

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18
Q

When sealants first were used what was the main problem causing failure?

A

Moisture/ Saliva contamination

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19
Q

What type of pumice is used to polish the tooth prior to sealant placement?

A

Pumice paste (nada)

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20
Q

What is the correct term for the very beginning of caries?

A

Incipient caries

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21
Q

What does decalcified enamel look like?

A

White spots

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22
Q

What info is charted on the patients record when sealants are placed?

A

Which teeth were sealed

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23
Q

Will a limited variable number of bacteria live under a properly placed sealant?

A

No

24
Q

Can incipient caries revert from active to inactive?

A

Yes

25
Q

How are sealants stored when not in use?

A 
Do not expose to air or light 
Recap material
Keep away from Eugenol products
Room temp
Shelf life 18-36 months
Some stored in refrigerator
26
Q

Where is the Parotid gland and by which teeth?

A

Front of ear area

Next to teeth 2,3,14,15

27
Q

What is the strongest substance in the body and where is it found?

A

Enamel

On tooth surface

28
Q

A bubble void is found in the sealant with no saliva contamination what do you do?

A

Reapply sealant

Recure

29
Q

Is dental adhesion by mechanical bonding or chemical bonding?

A

Mechanical (light cure)

30
Q

A child demonstrating moderate risk factors will have how many cavities in the past year?

A

1-2 cavities

31
Q

How is excess sealant material removed from high spots interfering with occlusion?

A

Reduce occ with white stone

32
Q

How close is the curing light held from the sealant and tooth?

A

1-2 mm

33
Q

What is the energy output of the curing light to successfully cure the sealant material?

A

400-600 nanometers

34
Q

What is photopolymerization? What is self cure?

A

Light cure=polymerization

Self cure= chemicals cure one another

35
Q

What is the curing time for sealants when using a high intensity energy curing light?

A

10 sec

36
Q

What does interprasmatic substance do to the enamel rods?

A

Holds enamel rods together

37
Q

What is the process called when the saliva calcium and phosphates are absorbed by the enamel?

A

Recalcification

38
Q

What is the curing time for sealants when using a standard curing light?

A

20 sec

39
Q

What is the initial recommended etching time?

A

15 sec

40
Q

What is the re etching time?

A

10 sec

41
Q

What percentage of orthophosphoric acid is in most etching materials used?

A

50%

42
Q

After rinsing the enchant off for how long is the tooth dried?

A

20 sec

43
Q

When re etching due to moisture control what 2 steps are done?

A

Wash and dry

Re isolate with dry cotton rolls

44
Q

At what step is prima dry applied and for how long?

A

After etching

45
Q

What is the purpose of wiping the just cured sealant with a wet cotton roll?

A

Remove the inhibition layer

46
Q

What can be used to remove moisture from the tooth?

A

Cotton roll
Gauze
Air and water syringe
Hve

47
Q

What is the benefit of fluoride containing sealant material?

A

Remineralize incipient dental caries

48
Q

Which disinfectant is contraindicated and may erode the curing light tip?

A

Alcohol

49
Q

What are the small faults that occurs form the noncoaloenscense of enamel formation on the occ surface?

A

Pits

50
Q

Now many mm of the surrounding area of deep pit and fissures on the bucc or ling surfaces should the etchant cover?

A

2 mm

51
Q

What are the linear faults that occur from noncoaloenscense of enamel formation on the occ surface?

A

Fissures

52
Q

The occ surface and the _________ surfaces are inspected for excess material placement.

A

Interprovincial

53
Q

Sealants Procedure:

A 
Coronal polish sealing surfaces
Wash and dry remove all pumice
Isolate w/ cotton rolls; dry angles
Etch 15 sec 
Wash 20 sec 
Dry 20 sec HVE 
Prima dry 5 sec 
Dry again 
Apply sealant material 
Cure 20 sec
54
Q

Benefits of Sealants:

A 
Eliminates bacteria 
Fills grooves with acid resistant resin 
Eliminates cariogenic bacteria 
Arrests incipient decade 
Cost effective of prevention over restoration cost
55
Q

What is used to check the occlusion after the sealants have been placed?

A

Articulating paper

RDA (2 decks)

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