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DENTAL NURSE > Unit 307- restorative > Flashcards

Unit 307- restorative Flashcards

1
Q

class 1

A

fissures

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2
Q

class 2

A

two surfaces like mo

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3
Q

class 3

A

m or d of a incisor or canine

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4
Q

class 4

A

MI OR DI extended cavity

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5
Q

class 5

A

cervical margin

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6
Q

class 6

A

cusps/occlusal

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7
Q

what is a gingival margin trimmer

A

to trim margin of cavity

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8
Q

what is the effect cutting out a DO cavity and what do the tiny grooves do

A

dovetail effect
they provide adequate retention

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9
Q

what is an enamel chisel

A

remove any enamel from cavity

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10
Q

reasons for moisture control

A

-protect patient airway
-pt is comfortable
-good visibility
-allow materials to set

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11
Q

low speed suction name

A

saliva ejector

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12
Q

revolutions of high speed

A

500,000

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13
Q

revolutions of low speed

A

400,000

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14
Q

burs with diamond carbide surfaces are used for what

A

enamel, dentine, old fillings

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15
Q

contra angled and shank are used for what

A

caries, dentine, small on children

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16
Q

use of the type of burs round, pear, fissure

A

r-access to cavities
p-shaping
f-outlining

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17
Q

difference between slow speed and high speed burs

A

ss- latch grip
hs- friction grip

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18
Q

what is air abrasion

A

compressed air abrasive practices

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19
Q

zinc oxide and eugenol example

A

kalzinol

20
Q

ad and dis and use of zinc phosphate

A

A-quick, hard, adhesive to dentine
D-moisture sensitive, irritants pulp due to it’s acidity
Use-temp fill, cavity base, luting cement

21
Q

ad and dis and use of zinc oxide and eugenol

A

A-cheap, sedative to inflamed pulp
D-reacts with composites, burn soft tissues
Use-metalic fillings cavity base

22
Q

what is a thin mix of zinc phosphate called and for

A

luting cement for crown cementation

23
Q

ad and dis and use of zinc polycarboxylate

A

A-most adhesive cement to dentine
D-sticky to place
Use- cavity base, luting cement

24
Q

what material is used for linings and what is it for

A

calcium hydroxide
protect the pulp from thermal and chemical shock, it kills bacteria

25
Q

what is in a amalgam capsule

A

powered alloy silver copper and liquid mercury

25
Q

disadvantages of calcium hydroxide

A

soluble in water
requires a base on top as it’s too thin

26
Q

ad and dis of amalgam

A

A- easy to use, cheap, good strength, longevity
D-mercury is toxic, not retentive, thermal shocks, metal colour

27
Q

large amalgam spill instructions

A

-PPE
-mercury absorbent paste(calcium hydroxide and sulphur with water)
-left to dry and cleaned with wet towel and placed in container
-risk assess

28
Q

how does composite set

A

blue light which makes catalyst set

29
Q

what is in acid etch

A

37% phosphoric acid

30
Q

how much does the light penetrate composite

A

2mm

31
Q

advantage and disadvantage of composite

A

A- colour, adhesive from etch and bond, strength in small, fast set, premixed
D- long procedure, expensive, can only use glass ionomer for base, moisture

32
Q

what is unfilled resins

A

fissure sealant

33
Q

what does glass ionomer capsule consist of

A

aluminosilicate and polyacrylic acid and water

34
Q

ad and dis of GIC

A

A- adhesive, good for abrasion class 5 cavities, release fluoride
D- low strength, deep cavities require calcium hydroxide, moisture

35
Q

what type of comp for anterior teeth

A

microfine

36
Q

what classification would you use gi on

A

class 5

37
Q

what is in comp that makes it its shade

A

inorganic filler

38
Q

what would you use at the end for a deep cavity

A

spoon excavator

39
Q

what is cermet

A

ceramic metal mixture

40
Q

what two materials would you use on a crown core

A

cermet, hybrid comp

41
Q

what is hybrid comp for teeth

A

posterior

42
Q

universal comp uses on what teeth

A

both ant and post

43
Q

name 4 components of comp

A

powdered glass, quartz, silica, ceramic particles

44
Q

what is the resin base in comp called

A

bisphenol A-glycidyl methacrylate (BISGMA)

45
Q
A

DENTAL NURSE (12 decks)

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