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Dental Nursing > Restoration Materials & Instruments > Flashcards

Restoration Materials & Instruments Flashcards

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0
Q

What does good cavity prep consist of?

A

Removal of all caries
Removal of minimum amount of healthy tissue
Avoid accidental exposure of pulp
Protect pulp (linings)
Produce a retentive cavity for restoration

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1
Q

Factors that affect the choice of restoration?

A 
Cavity size
Cavity position
Tooth involvement
Extent of caries
Patient's wishes
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2
Q

What is the purpose of a mouth mirror?

A

To aid vision
Reflect light onto tooth
Retract and protect soft tissues

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3
Q

Purpose of right angled probe?

A

Check aviary margins
Assess soft dentine with a cavity
Detect overhangs in restorations

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4
Q

Purpose of excavators?

A

Removes softened dentine

Small/large spooned shape

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5
Q

Purpose of an amalgam plugger?

Packer

A

Push and adapt filling material to suit cavity shape

Make sure that no air spaces are left

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6
Q

Purpose of a burnisher?

A

Press and adapt restoration to the cavity margins to prevent leakages

Ball/pear shaped

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7
Q

Purpose of enamel chisel?

A

Remove unsupported enamel from cavity edges

Item is becoming obsolete and is being replaced with the use of various burs

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8
Q

What are methods of moisture control?

A 
High speed suction
Low speed suction
Cotton wool
Dry guards
Rubber dam
3in1 tip
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9
Q

Another name for fast handpiece?

A

Air Turbine

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10
Q

How many revolutions does a fast handpiece do per minute?

A

500,000

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11
Q

How many revolutions does a slow hand piece do per minute?

A

40,000

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12
Q

What does a round bur do?

A

Gains access to cavities and at a low speed for removing caries

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13
Q

What does a pear shaped but do?

A

Shapes and smooths cavities

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14
Q

What does a fissure but do?

A

Shapes and outlines cavities

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15
Q

Types of mandrels

A

Huey mandrel
Moore mandrel
Pinhead mandrel

16
Q

What is the purpose of restorative materials?

A

Prevent pain/sensitivity
Restore function
Improve aesthetics

17
Q

Types of temporary restorations

A

Zinc oxide and eugenol
Zinc phosphate
Zinc polycarboxylate

18
Q

What is zinc oxide and eugenol used for?

A

Cavity liner
Temp dressing with soothing qualities
Temp cement

19
Q

What is zinc phosphate used for?

A

(Thick) temp fill or base of permanent restoration

(Thin) luring cement: crown, inlay,ortho

20
Q

What is zinc polycarboxylate used for?

A

Cement crowns,bridges,inlays & ortho
Cavity lining
Temp filling or deciduous teeth permanent

21
Q

What is the purpose of a lining?

A

To protect pulp from thermal shock

Encourage secondary dentine

22
Q

What is the chemical symbol for amalgam?

A

Hg

23
Q

What is amalgam made up of?

A

Silver up to 74%
Copper up to 30%
Tim
Zinc

24
Q

What are dentine pins used for?

A

Improves retention of restoration

25
Q

What does a matrix system do?

A

Prevents overhangs

Holds filling

26
Q

What are the two types of matrix systems?

A

Siqveland and tofflemire

27
Q

What is a matrix system used for class V restorations?

A

Cervical

28
Q

What is the instrument used for supra-gingival calculus?

A

Jaquette

29
Q

What are wedges used for?

A

Placed inter dentally to help secure matrix system

30
Q

What are the five finishing instruments?

A 
Ward's carve
Flat plastic
Burnisher
Greenstone drills
Articulating paper
31
Q

What are the three way mercury poisoning can occur?

A

Inhalation
Ingestion
Absorption

32
Q

Which waste does amalgam go into?

A

Special containers

Hazardous waste - non infectious/chemical

33
Q

What are the three types of composite?

A

Microfine composites - anterior teeth/polishes/glosses

Hybrid comp - posterior teeth/high strength/ better wear resistance

Universal comp - anterior & posterior/combo of both

34
Q

How much phosphoric acid is in etch?

A

33%

35
Q

What material would be used for class V restorations?

A

Glass ionomer

Dental Nursing (22 decks)

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