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Advanced Restorative > Class IV > Flashcards

Class IV Flashcards

1
Q

Indications
(2)

A
  • Carious lesion involving the incisal edge or undermines the enamel
    of the incisal edge an anterior tooth.
  • Trauma- Fracture involving one or both incisal angles of an
    anterior tooth.
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2
Q

Assessment (carious)
* Determine —.
* Evaluate extent of — and presence of other — or — on the tooth.
* Examine radiographs for —.
* Determine size of the —.
* Determine — of tooth and adjacent teeth using —.

A

vitality
caries, lesions, defective restorations
periapical lesions
pulp chamber
shade, Vita shade guide

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3
Q

Assessment (trauma)
* Determine cause of — and — of occurrence.
* Determine —.
* Evaluate — of fracture and — of the tooth as well as
—.
* Determine presence of — or — on the tooth.
* Examine tooth/radiographs for (3).

A

fracture, time (history)
vitality
extent, integrity, discoloration
carious lesions, defective restorations
root fractures, buccal/lingual plate fractures, and integrity of adjacent teeth

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4
Q

Preparation (carious)
(4)

A
  • Anesthetize tooth
  • Isolate tooth- Rubber Dam, Isovac, Cheek Retractor.
  • Remove unsupported enamel with carbide/diamond bur.
  • Remove all caries with largest round bur that will fit in the space.
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5
Q

Preparation (carious)
(3)

A
  • Place a liner (RMGI/CaOH) if preparation is within 0.5 mm of the
    pulp.
  • Place retention points (if necessary).
  • Bevel all enamel margins with a medium grit diamond bur:
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6
Q
  • Bevel all enamel margins with a medium grit diamond bur:
    (2)
A
  • Place 45o bevel on lingual and interproximal margins.
  • Place long, shallow bevel on facial surface.
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7
Q

Preparation (trauma)
(6)

A
  • Anesthetize tooth
  • Isolate tooth- Rubber Dam, Isovac, Cheek Retractor.
  • Remove unsupported enamel with carbide/diamond bur.
  • Place a liner (RMGI/CaOH) if preparation is within 0.5 mm of the
    pulp.
  • Place retention points (if necessary).
  • Bevel all enamel margins with a medium grit diamond bur:
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8
Q
  • Bevel all enamel margins with a medium grit diamond bur:
    (2)
A
  • Place 45o bevel on lingual and interproximal margins.
  • Place long, shallow bevel on facial surface.
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9
Q

skipped
Restoration
(12)

A
  • Verify shade- Place a small amount of composite on facial surface
    of tooth and light cure.
  • Place mylar matrix strip between adjacent teeth and carefully
    wedge in place.
  • Etch surface of tooth
  • Dry excess water from enamel surface; dentin surface must
    remain moist to ensure maximum bond strength
  • Bonding agent applied to all enamel and dentin surfaces
  • Air dry for 5 seconds with gentle stream from air/water syringe.
  • Second coat of bonding agent applied.
  • Air dry for 5 seconds.
  • Light cure all areas of tooth for 20 seconds.
  • Place first increment of composite to restore most lingual surface of the
    tooth to include incisal edge.
  • Cure for 40 seconds.
  • Place second increment of composite to restore the labial surface of the
    tooth
  • Cure for 40 seconds.
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10
Q
  • Etch surface of tooth
    (2)
A
  • enamel can be etched for 30 seconds or longer.
  • dentin must not be etched for longer than 15 seconds
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11
Q

skipped
* Place second increment of composite to restore the labial surface of the
tooth:
(3)

A
  • Include the contact and incisal angle to mirror adjacent tooth
    surface.
  • Place developmental grooves on facial surface of tooth.
  • Place proper contour of tooth to include all line angles.
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12
Q

skipped
Finish
(3)

A
  • Final shaping of facial surface is accomplished with a 7902
    finishing bur.
  • Lingual surface is shaped with #4, 6 carbide burs on a slowspeed
    handpiece (< 10,000 rpm) and a 7460 finishing bur (highspeed).
  • Occlusion is adjusted with articulating paper and #4, 6 carbide
    burs on a slowspeed handpiece.
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13
Q

Polish
* — are used to finish and polish restoration

A

Soflex Discs

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14
Q

skipped
Polish
* Soflex Discs are used to finish and polish restoration
(6)

A
  • a series of four disc (yellow, light orange, orange, dark orange)
  • Do not use the dark orange disc! It is too course and will remove
    composite very quickly even on slowspeed.
  • break the spine of the discs before use.
  • always use the discs wet and at very low rpm, creating a slurry.
  • avoid holding the disc flat against the tooth. This will remove
    tooth anatomy, hold at 45o angle.
  • polish with the orange and light orange removing all scratches
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15
Q

skipped
Polish
(4)

A
  • Polish with Diacomp points.
  • Finish polish with yellow Soflex disc
  • Remove excess composite from margins and interproximal areas
    with #12 surgical blade.
  • Optiguard may be placed and cured to seal restoration
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16
Q
  • Polish with Diacomp points.
    (2)
A
  • green Diacomp points (wet, slowspeed)
  • white Diacomp points (wet, slowspeed)
17
Q
A

Advanced Restorative (14 decks)

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