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Operative 2 > Operative II Review > Flashcards

Operative II Review Flashcards

1
Q

skipped
ISOLATION OF OPERATING FIELD
* But Why?
(6)

A
  • Better visualization
  • Better access
  • Prep walls dry and clean
  • Your materials work better https://www.researchgate.net/figure/Minimally-invasive-distal-slot-preparation_fig14_237388550
  • Improved properties- direct contact of varnish/liner/base with cavity walls
  • Moisture affects bond as well as materials ability to set up
  • Prevents injury to patient soft tissues
  • Prevents aspiration and swallowing of debris
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2
Q

Components of Dental Dam set up
(4)

A
  • Rubber sheet, clamp, frame, punch, forceps
  • Rubber sheet
  • Different sizes rubber material
  • Different thickness (gauges)
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3
Q
  • Rubber sheet
    (2)
A
  • Dull side faces operator
  • Shiny side against patient tongue, palate
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4
Q
  • Different sizes rubber material
    (2)
A
  • 5x5 pediatric patients
  • 6x6 adults
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5
Q
  • Different thickness (gauges)
    (5)
A
  • Thin 0.006” (used only for very tight contacts)
  • Medium 0.008”
  • Heavy 0.010”
  • Extra Heavy 0.012”
  • Special Heavy 0.014”
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6
Q

Frame
(2)

A
  • Metal
  • Plastic- can be radiographed
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7
Q

Punch
(2)

A
  • Choose appropriate hole size based on tooth size
  • Anchor tooth gets largest hole
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8
Q

Forceps
(2)

A
  • Used to place clamp
  • Holes in clamp correspond to extension in forceps
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9
Q

ISOLATION OF OPERATING FIELD
* Extremely important in composite cases
(4)

A
  • USE RUBBER DAM
  • Bonding requires uncontaminated surface
  • Technique sensitive!
  • Wet field= recurrent caries or failed bond
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10
Q

ISOLATION OF OPERATING FIELD
Class II=

A

one tooth posterior, two teeth anterior to tooth you’re working on
* ONE TOOTH BEHIND (anchor) and TWO TEETH IN FRONT

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11
Q

ISOLATION OF OPERATING FIELD
Anteriors
(2)

A
  • Canine to canine
  • Or can clamp on one premolar
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12
Q

ISOLATION OF OPERATING FIELD
* Pediatric-

A

only isolate teeth necessary

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13
Q

ISOLATION OF OPERATING FIELD
* Endo-

A

single tooth

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14
Q

ISOLATION OF OPERATING FIELD
General isolation/FDP-

A

general field isolation
* May be acceptable to cut a slit between holes

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15
Q

ISOLATION OF OPERATING FIELD
(6)

A
  1. Prep work
    * punch holes in rubber
    * check contacts for floss shredding
    * Smooth contacts if necessary
    * mark occlusion
  2. Place clamp in dam
    * Don’t forget to tie clamp with floss
  3. Place dam over tooth
    * Can do with or without frame in place
  4. stretch dam through contacts
    * Floss between contacts
  5. Invert dam
    * Delicately blow air around cervical area and push rubber into sulcus
    with plastic instrument
  6. Ligate anterior tooth /
    * Ligate with ligatures or piece of rubber dam cut and placed
    interproximally
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16
Q

Cotton rolls
(2)

A
  • Placed in vestibule
  • Wet when removing to avoid “cotton roll burn”
17
Q

Dry Shield (parotid shield, cellulose wafer)
(2)

A
  • Blocks parotid, retracts and protects cheek
  • Wet when removing to avoid “cotton roll burn”
18
Q

2x2 gauze
(2)

A
  • Least effective
  • Works well as throat pack
19
Q

Cotton Pellets
(2)

A
  • Remove moisture from inside preparation
  • Remove moisture when patient is sensitive to air and water spray
20
Q

High evacuation suction
(4)

A
  • Vented is better- reduces sucking up of tongue and mucosa
  • Very effective at picking up debris
  • Can be used to retract tissue
  • Leave room for water from handpiece to cool the tooth
21
Q

Saliva Ejector
(3)

A
  • Ineffective at removing debris
  • Do NOT have patient close lips around suction
  • Backflow, extra gross
22
Q

Svedopter

A
  • Old fashioned isovac
23
Q

Additional tools:
(3)

A
  • Retraction cord
  • Bite Block
  • Anterior lip retractors
24
Q

— is the optimal method
* Get good at placing it!
* Fast and efficient
* Makes life easier

A

Rubber dam

25
Q

D1 (Dentin-first layer):

A

caries extends only to first third of dentin
Treatment planning consideration: restore surgically or
attempt to remineralize

26
Q

D2 (Dentin-second layer):

A

caries extends to middle third of
dentin
Treatment planning: restore surgically

27
Q

Interproximal clearance= —
Facial, lingual, and gingival

A

0.5mm

28
Q

Once ideal outline form is achieved, remove caries
(2)

A
  • Spoon excavator
  • Round bur on slow speed handpiece
29
Q

Refine prep
(2)

A
  • Plane axiopulpal line angle
  • Reduces stress
  • Plane gingival margin
  • Use margin trimmer
  • This removes loose enamel rods
30
Q

amalgam
Good condensation is important!
* Fill — first
* Fill — above margins

A

Box
1.0mm

31
Q

Begin carving
(3)

A
  • Carve mesial incline of marginal ridge using explorer
  • Pre-carve burnish
  • Carve with Hollenback
32
Q

CLASS II AMALGAM MODIFICATIONS
* Maxillary molars
(3)

A

Do not cross oblique ridge when possible
-if less than 0.5mm thick= cross ridge
-preserves resistance form

33
Q

Clean tooth
* w/

A

Pumice and water mixture

34
Q

Proximal outline form
(3)

A
  • Must break gingival margin
  • CARIES must be removed
  • Occur just below contact
  • Matrix band must fit passively
  • Keep margins in enamel when possible
  • Only remove carious tooth structure
35
Q

BEVELS

A
  • Lingual wall bevel
  • Gingival bevel
  • Careful- enamel is thin here
  • If gingival floor is in dentin/cementum,
    NO BEVEL
  • Axial-pulpal line angle bevel
36
Q
  • Flare on —
A

facial

Operative 2 (12 decks)

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