Isolation

Question 1

What are the 3 main reasons to use Isolation

Answer 1

1. Moisture Control 2. Retraction 3. Harm Prevents

Question 2

How does Isolation assist in Moisture control

Answer 2

1. Excludes Sulcular fluid, saliva, and blood 2. Prevents spray of handpick and debris from being swallowed

Question 3

How does Isolation assist in retraction?

Answer 3

1. Provides maximal exposure

Question 4

How does Isolation assist in harm prevention

Answer 4

1. Provides patient comfort, and prevents harm while increasing operator efficiency

Question 5

Define Rubber Dam Isolation

Answer 5

Used to define operating field by isolating 1 or more teeth from oral environment. It eliminates saliva and retracts soft tissue

Question 6

5 Advantages of Rubber Dam Isolation

Answer 6

1. Prevent Pulpal contamination from fluid - Increases performance 2. Retracts soft tissue, dark color dam provides non reflective background for better contrast 3. Provides dry optimal condition for placing material 4. Protects patient from aspiration and swelling. Protects soft tissue irritation. Effective infection control of dental office 5. Increase productivity, decrease conversation, keeps mouth open

Question 7

Rubber Dam Material

Answer 7

5x5 or 6x6 Thin: .006 in, Med: .008 in, Heavy: .101 in, Extra Heavy, .012 in Dark material preferred Thinner material easier to pass contact

Question 8

What does the Frame do in Rubber Dam isolation

Answer 8

Maintains borders of Dam - U Shaped

Question 9

What does the Punch do in Rubber Dam isolation

Answer 9

Precision instrument with rotating table & sharp pointed plunger

Question 10

What does the retainer forceps do in Rubber Dam isolation

Answer 10

Used for placement and removal of retainer

Question 11

What does the Napkin do in Rubber Dam Isolation

Answer 11

Placed between rubber dam and skin: 1. improves patient comfort 2. absorbs seeping saliva 3. Cushions 4. Convenient to wipe patients lips on removal of Dam 5. Comfort for long appointments

Question 12

What does lubricant do in Rubber Dam Isolation

Answer 12

Applied in area of punched holes to facilitate passing contact

Question 13

Steps in Rubber Dam placement - 9 steps

Answer 13

1. Anesthesia 2. Retainer Selection 3. Pre-Framing 4. Placement 5. Passing Dam through posterior contact 6. Applying anterior anchor 7. Passing dam through contacts 8. Inverting the Dam 9. Ligature Placement (if necessary)

Question 14

Name the parts of the retainer

Answer 14

1. Hole
2. Jaw
3. Prong
4. Bow

Question 15

How many line angles should the retainer contact?

Answer 15

4

Question 16

What are the 3 reasons the jaw should not extend beyond the mesial and distal line angles?

Answer 16

1. They can interfere with matrix/wedge placement
2. Ginigival trauma is more likely to occur
3. Complete seal around anchor tooth is more difficult to achieve

Question 17

What is the purpose of wings on the retainer

Answer 17

They are for extra retraction of the dam

Question 18

What are the 2 placement techniques for rubber dam

Answer 18

1. Retainer first, then rubber dam
2. Retainer and dam applied simultaneosly

Question 19

What can be used as an anterior anchor

Answer 19

Wedjet, dental tape, piece of rubber dam

Question 20

What can be used to pass the dam through the contacts?

Answer 20

dental floss

Question 21

What can be used to invert the rubber dam after placement

Answer 21

dental tape or air-water syringe with IPC

Question 22

When would you use ligatures in RD placement

Answer 22

Teeth with short crown

It is unnecessary if enough teeth are isolated.

Use a surgeon’s knot to tie

Question 23

What are the four steps in RD removal

Answer 23

1. Cut RD at interproximal areas
2. Remove retainer
3. Remove rubber dam
4. Check for any remaining pieces in interproximal areas

Question 24

What is the benefit of Light-Cured Resin Barriers

Answer 24

they isolate and protect soft tissue by focusing heat away from the tooth and ginigiva for added comfort

Question 25

What is optragate?

Answer 25

a lip and cheek retractor

Question 26

How is Retraction cord used?

Answer 26

Used in direct restorations involving subgingival areas Used in indirect involving gingival margins It is used without dam to control sulcular seepage, hemmorhage Improved access and visibility helps prevent abrasion

Question 27

What are the dimensions that should be used for retraction cord

Answer 27

It should extend approximately 1 mm beyond gingival width

Question 28

Ultrapak Cord (Ultradent)

Answer 28

Braided Cord Size 000-2 Dampen with Water or Hemodent Leave in until finished

Question 29

Hemostatic

Answer 29

Retraction cord w/hemodent Buffered Aluminum Chloride Viscostat Clear: 25% Aluminum Chloride Expasil: Kaolin and Aluminum Chloridge

Question 30

Hemodent

Answer 30

Good Hemostasis Buffered with Aluminum Chloride Used with cord or as a liquid Localized action

Question 31

Viscostat

Answer 31

Excellent Hemostasis 20% ferric sulfate Stains composite

Question 32

Viscostat Clear

Answer 32

Good hemostasis 25% aluminum chloride No stain Less effective than viscostat scrub and rinse

Question 33

Expa-syl

Answer 33

Excellent Hemostasis Kaolin & Aluminum Chloride Selective EXPENSIVE! Decreased Tissue Trauma Learning Curve

Question 34

What are the steps in rebonding after contamination (6)

Answer 34

1. Control Field 2. Rinse and Dry 3. Apply etch and rinse 4. Apply primer 5. Apply adhesive and polymerize 6. Apply and Polymerize resin