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Direct Operative > Isolation > Flashcards

Isolation Flashcards

1
Q

What are the 3 main reasons to use Isolation

A
  1. Moisture Control 2. Retraction 3. Harm Prevents
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2
Q

How does Isolation assist in Moisture control

A
  1. Excludes Sulcular fluid, saliva, and blood 2. Prevents spray of handpick and debris from being swallowed
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3
Q

How does Isolation assist in retraction?

A
  1. Provides maximal exposure
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4
Q

How does Isolation assist in harm prevention

A
  1. Provides patient comfort, and prevents harm while increasing operator efficiency
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5
Q

Define Rubber Dam Isolation

A

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

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6
Q

5 Advantages of Rubber Dam Isolation

A
  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
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7
Q

Rubber Dam Material

A

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

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8
Q

What does the Frame do in Rubber Dam isolation

A

Maintains borders of Dam - U Shaped

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9
Q

What does the Punch do in Rubber Dam isolation

A

Precision instrument with rotating table & sharp pointed plunger

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10
Q

What does the retainer forceps do in Rubber Dam isolation

A

Used for placement and removal of retainer

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11
Q

What does the Napkin do in Rubber Dam Isolation

A

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

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12
Q

What does lubricant do in Rubber Dam Isolation

A

Applied in area of punched holes to facilitate passing contact

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13
Q

Steps in Rubber Dam placement - 9 steps

A
  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)
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14
Q

Name the parts of the retainer

A
  1. Hole
  2. Jaw
  3. Prong
  4. Bow
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15
Q

How many line angles should the retainer contact?

A

4

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16
Q

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

A
  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
17
Q

What is the purpose of wings on the retainer

A

They are for extra retraction of the dam

18
Q

What are the 2 placement techniques for rubber dam

A
  1. Retainer first, then rubber dam
  2. Retainer and dam applied simultaneosly
19
Q

What can be used as an anterior anchor

A

Wedjet, dental tape, piece of rubber dam

20
Q

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

A

dental floss

21
Q

What can be used to invert the rubber dam after placement

A

dental tape or air-water syringe with IPC

22
Q

When would you use ligatures in RD placement

A

Teeth with short crown

It is unnecessary if enough teeth are isolated.

Use a surgeon’s knot to tie

23
Q

What are the four steps in RD removal

A
  1. Cut RD at interproximal areas
  2. Remove retainer
  3. Remove rubber dam
  4. Check for any remaining pieces in interproximal areas
24
Q

What is the benefit of Light-Cured Resin Barriers

A

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

25
Q

What is optragate?

A

a lip and cheek retractor

26
Q

How is Retraction cord used?

A

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

27
Q

What are the dimensions that should be used for retraction cord

A

It should extend approximately 1 mm beyond gingival width

28
Q

Ultrapak Cord (Ultradent)

A

Braided Cord

Size 000-2

Dampen with Water or Hemodent

Leave in until finished

29
Q

Hemostatic

A

Retraction cord w/hemodent

Buffered Aluminum Chloride

Viscostat Clear: 25% Aluminum Chloride

Expasil: Kaolin and Aluminum Chloridge

30
Q

Hemodent

A

Good Hemostasis

Buffered with Aluminum Chloride

Used with cord or as a liquid

Localized action

31
Q

Viscostat

A

Excellent Hemostasis

20% ferric sulfate

Stains composite

32
Q

Viscostat Clear

A

Good hemostasis

25% aluminum chloride

No stain

Less effective than viscostat

scrub and rinse

33
Q

Expa-syl

A

Excellent Hemostasis

Kaolin & Aluminum Chloride

Selective

EXPENSIVE!

Decreased Tissue Trauma

Learning Curve

34
Q

What are the steps in rebonding after contamination (6)

A
  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

Direct Operative (5 decks)

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