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Endodontics > Lec Endodontic Materials 1 > Flashcards

Lec Endodontic Materials 1 Flashcards

1
Q

Steps to endo:

A

diagnose, isolate, irrigate, shape, obturate, temporize

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2
Q

EPT testing:

A

electrical pulp testing

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3
Q

Can we use hot or cold to test for pulp vitality:

A

either

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4
Q

List the 3 main diagnostic methods for teeth requiring RCT:

A

EPT, Thermal, Fracture Detection

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5
Q

Do all fractured teeth require RCT?

A

ask

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6
Q

Additional material required for EPT:

A

toothpaste (contact medium)

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7
Q

Scale for EPT:

A

1-80

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8
Q

TF? The rate on the EPT machine can be altered.

A

T

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9
Q

Why do we want the pt to hold the EPT handle while pulp testing?

A

ask

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10
Q

Compound used for pulp testing:

A

1,1,1,2-tetrafluoethane

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11
Q

Temp of Endo Ice:

A

-26.2’ C (-79-16’ F)

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12
Q

Heat Testing:

A

Gutta percha stopping, white stick, firmer than GP points, Use on Glick #1, Lubricate tooth w vaseline

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13
Q

Crack detection:

A
  1. Tooth sleuth (can detect ind cusps), 2. Transilumination
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14
Q

Instrument for transilumination crack detection:

A

Fiberoptic Wand, high speed light

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15
Q

How to detect fractures:

A

Perio probe, RG

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16
Q

Drawback to RG fracture detection:

A

rarely definitive, vertical fracture rarely seen

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17
Q

What can be determined w RG in fracture detection?

A

pattern of bone loss (ask?)

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18
Q

Latex Rubber dams:

A

medium gauge, light color, visualize film

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19
Q

Non-latex dental dams:

A

allergies, color varies

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20
Q

What do we use in conjunction w rubber dams in clinic?

A

rubber dam napkins (Ora-shield)

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21
Q

Type of clamp that hold rubber dams down:

A

winged clamps

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22
Q

Winged clamps to use for anteriors:

A

1, #6, #9

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23
Q

Winged clamps to use for premolars:

A

0, #00

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24
Q

Winged clamps to use for molars:

A

3, #4, #56

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25
Q

Materials to prevent leakage around the rubber dam (RD):

A

Oraseal Putty (self curing caulking agent), Kool dam (light cured rubbery-resin)

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26
Q

Placing the clamp on other teeth allows for:

A

distribution of tension of RD, stability

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27
Q

Brand name of RD stabilizing cord:

A

Wedjets

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28
Q

plastic RD frames, RGO or RGL:

A

RGL

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29
Q

Should the plastic RD frame be removed for RGs?

A

no

30
Q

How to take RG’s with plastic frame in place:

A

w hemostat (does the pt hold the hemostat in place? ask?)

31
Q

Irrigation materials:

A

syringe, needle, suction, solutions, lubricants, activators

32
Q

Needles used for irrigation:

A

small (25 gauge), no bevel, side vented, disposable, irrigant delivered laterally, reducing the risk of apical extrusion

33
Q

Syringes used for irrigation:

A

disposable, 5ml, Luer-lok

34
Q

ideal props of irrigant solution:

A

tissue/debris solvent, non-toxic, low surface tension, lubricant, antibacterial, removes smear layer

35
Q

Sodium hypochlorite:

A

antimicrobial, lubricant, tissue dissolving, inexpensive, use 1/2 strength

36
Q

Sodium hypochlorite will dissolve tissue at the temp and duration:

A

50’ C, 20m

37
Q

EDTA:

A

Ethylenediamine Tetra Acetic Acid: chelates-self-limiting, removes smear layer, no action in organic tissue, allows better adaptation of obturating material to canal walls

38
Q

Chlorhexidine gluconate:

A

antimicrobial, substantive, non-toxic, no tissue destruction, discoloration

39
Q

Function of lubricants:

A

red torsional forces on instruments, dec fracture

40
Q

2 types of lubricants:

A

RC Prep, ProLube

41
Q

RC Prep is made of:

A

EDTA, Urea Peroxide, water soluble base

42
Q

ProLube is made of

A

EDTA, Carbamide Peroxide, Gel, Single-dose

43
Q

instrument to instrument canals

A

EndoActivator

44
Q

Explorer used for access:

A

17

45
Q

Use #17 explorer for this:

A

evaluate straight line access, locate the canal orifice

46
Q

Is there an easy way to differentiate bw enso access instruments and obturation instruments? They all look the same to me now

A

Ask

47
Q

Use the endospoon to:

A

remove the pulp

48
Q

TF? The Glick #2 CAN NOT be heated.

A

F. Can heat

49
Q

What to use the Glick #2 for:

A

Remove GP at canal orifice

50
Q

Ingle’s RG method 1957:

A

RG estimation of the WL 0.5mm short of the RG apex

51
Q

Method to determine the apical limit in cleaning and shaping of canal:

A

ingle’s RG method

52
Q

Instrumentation and obturation should end here:

A

apical constriction

53
Q

Location of apical constriction:

A

0.5mm short of apical foramen (on avg)

54
Q

Range of distance of AC from AF:

A

0.2-1.25

55
Q

TF? The apical foramen usually coincides with the anatomical foramen.

A

F

56
Q

you can not see the apical foramen in these instances:

A

exits in a B or L direction

57
Q

Brands of apex locators:

A

Root ZX, Root ZX II, Mini Root

58
Q

First terminal: the lip clip should contact:

A

the oral tissue, contrary electrode

59
Q

Second terminal:

A

tip of the file, when connected

60
Q

EAL provides:

A

alternating currents (AC current) w different frequencies

61
Q

This acts as an electric barrier:

A

dentin

62
Q

Impedance:

A

dentin (electric barrier)

63
Q

Fxn of the internal clip:

A

process the info and it can detect:

64
Q

Green arrows on the apex locator indicate:

A

the apical constrition

65
Q

APEX or pink line indicated:

A

Apical foramen

66
Q

Why take RG w file in position after using EAL:

A

See root canal path, reference image of apical limit for future endo, permanent record, correct WL of file is more or less than 2mm from apex

67
Q

Limitations of EAL’s:

A

Immature apex, pts w implanted pacemakers, amalgam (electrical short cut, shunt current), bleeding/ pus - too much electrolyte in canal might interfere in EAL reading.

68
Q

Shaping instruments:

A

slow speed, Manual SS, Rotary NiTi

69
Q

Cutting portion of the GG’s:

A

Side blades, tip is inactive

70
Q

GG #2, #3, #4, sizes:

A

70. #90, #110

71
Q

Main fxn of the GG:

A

Get rid of ….. triangle

Endodontics (22 decks)

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