Pit and Fissure Sealants Exam 3

Question 1

Biggest sayin with pit and fissure sealants!!:)

Answer 1

Less is MORE

Question 2

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

Answer 2

Pit and Fissure

Question 3

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

Answer 3

Sealant

Question 4

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

Answer 4

90%

Question 5

sealing the fissures with materials that lock into the irregularities

Answer 5

Obturation

Question 6

drill and fill suspected areas

Answer 6

Restoration

Question 7

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

Answer 7

Eradication

Question 8

Indications for Sealant Application

Answer 8

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

Question 9

Evidence Based Sealant Guidelines

Answer 9

American Academy of Pediatric Dentistry

ADA

Question 10

Contraindications

Answer 10

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

Question 11

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

Answer 11

adhere

isolate

Question 12

entrapment of material within pores and cavities

Answer 12

Mechanical Bonding

Question 13

attraction between unlike molecules

Answer 13

Secondary Bond or physical bond

Question 14

Factors Affecting Bonding

Answer 14

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

Question 15

Armementarian

Answer 15

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

Question 16

Acid Etching: Removes the organic debris left after _____ cleaning

Answer 16

mechanical

Question 17

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

Answer 17

physical

Question 18

Etched Enamel:

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

Answer 18

1. surface areas

2. porosity,

Question 19

Etchant CAUTION IS:

Answer 19

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

Question 20

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

Answer 20

suction the etch with HVE so no soft tissue is contacted

Question 21

Dry Surface: Sealants are ____ sensitive

a. air
b. wet
c. technique

Answer 21

technique

Question 22

Which step is most ctritical/most important factor in retention

Answer 22

Drying technique

Question 23

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

Answer 23

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

Question 24

the process by which sealants harden

Answer 24

POLYMERIZATION

Question 25

Peroxide/amine

Self-curing

Answer 25

Auto-polymerization

Question 26

Light activated

Light cured

Answer 26

Photo polymerization

Question 27

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

Answer 27

terminal

Question 28

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

Answer 28

strict

Question 29

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

Answer 29

Dry field

Question 30

Sealants must be checked at each visit and repaired if defective

Answer 30

recare