Pit and Fissure Sealants Exam 3 Flashcards Preview

Fundamentals > Pit and Fissure Sealants Exam 3 > Flashcards

Flashcards in Pit and Fissure Sealants Exam 3 Deck (30)
Loading flashcards...
1

Biggest sayin with pit and fissure sealants!!:)

Less is MORE

2

Enamel defect or fault that is the result of incomplete fusion of enamel

Pit and Fissure

3

Organic polymer that bonds to the enamel surface and protects the pits & fissures from bacterial activity

Sealant

4

Occlusal decay makes up approximately ___ % of decay in school aged children

90%

5

sealing the fissures with materials that lock into the irregularities

Obturation

6

drill and fill suspected areas

Restoration

7

using burs to make fissures that are not too deep and more accessible for cleaning

Eradication

8

Indications for Sealant Application

Deep pits and narrow fissures on occlusal surfaces
Xerostomia
Orthodontics
Recently erupted teeth
Incipient caries
Snacking >3X/day
Teeth free of interproximal caries
Elevated risk for dental caries
Total prevention program
Heavy plaque
Infrequent preventive care
Head and neck radiation

9

Evidence Based Sealant Guidelines

American Academy of Pediatric Dentistry
ADA

10

Contraindications

Wide fossa – self cleaning
Low caries risk
Good dietary habits
Restorations present
Decayed teeth (evaluate radiographically for interproximal decay)

11

Success lies in the ability to ___ firmly and __ the pits and fissures

adhere
isolate

12

entrapment of material within pores and cavities

Mechanical Bonding

13

attraction between unlike molecules

Secondary Bond or physical bond

14

Factors Affecting Bonding

Wetting ability of adhesive
Greater adhesion takes place when the material is able to wet the surface of the adherend.
Viscosity – Ability of material to flow over surface. Low viscosity flows better.
Prevention of salivary contamination
Drying and isolation of surface

15

Armementarian

Rubber dam (ehh)
cotton rolls and holder
dry-angle/neodry
Isolite

16

Acid Etching: Removes the organic debris left after _____ cleaning

mechanical

17

Acid Etch: Increases bonding since the ____ bond is a weak bond

physical

18

Etched Enamel:
1. Increases the __ ____ for bonding
2. Enhances enamel ___ , increases the size of pores.

1. surface areas
2. porosity,

19

Etchant CAUTION IS:

irritant to sot tissues, eyes, etc, patient and clinician must wear safety glasses

20

A good thing to do when before rinsing etch of tooth with your air water is to ....

suction the etch with HVE so no soft tissue is contacted

21

Dry Surface: Sealants are ____ sensitive
a. air
b. wet
c. technique

technique

22

Which step is most ctritical/most important factor in retention

Drying technique

23

When re-isolating teeth with dry cotton rolls what is good advice

DO NOT REMOVE WET COTTON ROLLS, AS THIS WILL CONTRIBUTE TO CONTAMINATING ETCHED SURFACE WITH SALIVA

24

the process by which sealants harden

POLYMERIZATION

25

Peroxide/amine
Self-curing

Auto-polymerization

26

Light activated
Light cured

Photo polymerization

27

Wear on sealants tends to uncover the ____ ends of the fissures

terminal

28

with ___ technique during placement sealants should last up to 5-10 + years

strict

29

Saliva occludes porosities and inhibits bonding. Re-etch with acid 10-20 seconds following saliva contamination.

Dry field

30

Sealants must be checked at each visit and repaired if defective

recare