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Endodontics > Final Files > Flashcards

Final Files Flashcards

1
Q
  1. Lingering pain
A

a. Irreversible symptomatic pulpitis

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2
Q
  1. Food impaction, cervical caries on 27 and 28 and gingival inflammation. Pain with
    percussion and palpation
A

a. Remove caries and refer to perio to do crown lengthening before restorations?

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3
Q
  1. Toothbrush abrasion. Hypersensitivity to cold but normal response for all other clinical
    tests
A

a. Reversible pulpitis

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4
Q
  1. Previously RCT something idk what this question was
A

a. Refer to endo?

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5
Q
  1. After you anesthetize what's the next step (2 variations of this same question on here)
A

a. Endo ice to check for sufficient anesthesia

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6
Q
  1. VRF has better prognosis than HRF
A

a. False

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7
Q
  1. There’s a j shaped lesion and a single 10 mm perio pocket (drop off) on a previously
    treated RCT. With this information its safe to assume its VRF
A

a. False (bc you have to surgical expose to diagnosis this)
b. But “safe to assume” is arbitrary so discussion board this b

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8
Q
  1. Complicated root fracture has
A

a. Enamel, dentin, and pulp exposure

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9
Q
  1. VPT purpose to use on open apex immature tooth
A

a. Allowing roots to get stronger and apex to close

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10
Q
  1. Least severe of the luxation injuries
A

a. Concussion

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11
Q
  1. Most important factor for achieving favorable outcome
A

a. Dry time

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12
Q
  1. It is recommended to run avulsed tooth under tap water to clean it
A

a. Fase

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13
Q
  1. IRR has excellent prognosis if RCT is done before perforation into PDL space occurs.
    ERR has poor prognosis
A

a. True, true

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14
Q
  1. Rigid and semi flexible prevents ankylosis by allowing for some small movements
A

a. False (not rigid)

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15
Q
  1. On a mandibular incisor there can be 2 canals. Which one are you likely to miss if you
    do not create your acces incically
A

a. Lingual

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16
Q
  1. Access depth
A

a. 7mm

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17
Q
  1. Which bur for mandibular incisor access
A

a. #2 round or 333

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18
Q
  1. Narrowest MD access
A

a. Mand central

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19
Q
  1. Shape for max central incisor
A

a. Triangular with the base of the triangle at the incisal

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20
Q
  1. Most likely to have 2 roots
A

a. Maxillary 1st premolar

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21
Q
  1. Worst thing you can do during access
A

a. Perforation

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22
Q
  1. If you fail to locate and obturate a canal during RCT it is likely it will fail
A

a. True

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23
Q
  1. Mandibular molar has a ___ outline to try and avoid missing the _____ canal
A

a. Trapezoidal, DL

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24
Q
  1. What is true about the MB2 canal with max 1st molars
A

a. Seen in 95% of the cases

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25
Q
  1. Most common reason to have retreatment for max 1st molars
A

a. MB2

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26
Q
  1. Hardest root canal to perform?
A

a. Maxillary molar with 5 canals

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27
Q
  1. Biggest challenge for anesthetic (this question was also on here twice in different
    variations)
A

a. Mandibular molar with SIP

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28
Q
  1. LA is ineffective when injecting into an infected tissue with acid pH
A

a. True

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29
Q
  1. You should wait for buccal infiltration until adequate IA block anesthetic (something like
    that)
A

a. true

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30
Q
  1. Which is most important factor regarding 8.3% NaOCl
A

a. Don’t let the needle bind

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31
Q
  1. Endoactivator significant reduces the time necessary for NaOCl to be present in the
    canal when irrigating
A

a. False

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32
Q
  1. Whats the first thing to do after 1 minute of EDTA use
A

a. NaOCl to inactivate the edta

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33
Q
  1. Find other treatment if you cannot get rubber dam on correctly as you need to have
    rubber dam to preform successful RCT
A

a. True

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34
Q
  1. Taper of blue vortex rotary files
A

a. 0.06

35
Q
  1. Which file is used for “scouting”
A

a. #10 SS hand file

36
Q
  1. How to get the SS stuck in the dentin (something like that)
A

a. Continue clockwise rotation

37
Q
  1. When using a straight file a ledge is created on which area
A

a. Outer wall of canal

38
Q
  1. NaOCl turns into salt and water. How long does this process take to occur?
A

a. 3-5 minutes

39
Q
  1. According to K… what size must the canal be enlarged to when shaping
A

b. Size #30

40
Q
  1. How long must you irrigate with NaOCl for?
A

c. 30 minutes

41
Q
  1. Which is true about cellulitis vs localized
A

d. All of the above (included things like fascial plane swelling, fever, refer, possible
hospitalization, etc.)

42
Q
  1. When you can localize the tooth what does this mean
A

e. PDL has been infected

43
Q
  1. Theres a DST whats hte periapical diagnosis
A

f. CAA

44
Q
  1. Always start with tooth in question for clinical testing
A

g. Fase (test adjacent 2-3 for normal baseline)

45
Q
  1. Effective working time of pulpal anesthetic
A
46
Q
  1. Average working time of pulpal anesthetic
A
47
Q
  1. Hardest RCT?
A

a. 4 root maxillary, 3 root maxillary, 3 root mandibular, 4 root mandibular

48
Q
  1. T/F: Dental trauma affects for life
A

T

49
Q
  1. Know the different files used for hand files – “Will You Really Be Going Back?”
A
50
Q
  1. T/F: Accessory rotary file is the only one that is .12 taper?
A

a. True – (25/.12)

51
Q
  1. All blue vortex rotary files have?
A

a. 0.06 taper (3 marks)

52
Q
  1. What is the biggest problem with access?
A

a. “Either not unroofing canal or perforation”

53
Q
  1. T/F: Non-perforation is better if RCT than ERR?
A

a. True

54
Q
  1. T/F: You use rigid and semi-flexible splint for ankylosis for long term and no movement of teeth?
A

False

55
Q

What is the working length of NaOCl irrigation in canal?

A

2 mm

56
Q

What do you do after EDTA?

A

“I put re-check the shape of the canal cause might’ve enlarged”

57
Q

Know endo access questions about roots and canals PowerPoint

A
58
Q

What do you do for vital pulp testing for open apex permanent tooth?

A

Keep it vital until is closes and the roots thicken/strengthen

59
Q

Vortex blue files: “go over this ppt to know what the diameters are; you might have to ID photo”
a. 0.25/0.06 through 0.45/0.06
b. 0.10/0.02 patency file
c. 0.15/0.02 glide path file
d. ALL vortex blue are 0.06 taper
i. Use in sequence so you don’t create a ledge

A

d. ALL vortex blue are 0.06 taper

60
Q
  1. .12/.12 vortex Ni-Ti Rotary file: perfect for straight line access
A

a. Max flute diameter is 1.20mm (size #120)

61
Q

Wave one Gold Files (motor driven reciprocal files; PUSH material ahead; used in 3 passes to prevent pushing debris out of end of root)
a. Small (.20/.07) YELLOW
b. Primary (.25/.07) RED we use this mostly
c. Large (.45/.05) BLACK

A
62
Q
  1. Ledges - use hand files (only way to scout canal);
A

a. STAINLESS STEEL K-TYPE hand files in counterclockwise fashion (aka Watch-
Winding)

63
Q

Know the compare/contrast of K-type files
a. K- type files:

A

we use these; more flexible, follow natural canal when pre-curved) b. Reamers: cuts on rotation, fewer flutes, ineffective with filing motion
i. dangerous and we don’t use at all c. Hedstrom files: machining via grinding
i. if used in rotational manner, easily broken

64
Q

Know the compare/contrast of K-type files
b. Reamers:

A

cuts on rotation, fewer flutes, ineffective with filing motion
i. dangerous and we don’t use at all

65
Q

Know the compare/contrast of K-type files
c. Hedstrom files:

A

machining via grinding
i. if used in rotational manner, easily broken

66
Q

Dental dam is standard of care

A

a. isolate only the tooth to be treated
b. if you can’t isolate with rubber dam, you cannot do the RCT

67
Q
  1. Leave rubber dam and frame on when taking radiographs?
A

T

68
Q
  1. 8.3% NaOCl is used to flush out debris and clean the system
A

a. you cannot 100% clean a canal

69
Q
  1. Know the color schematic, the tapering sizes, etc.
A
70
Q
  1. Know the hand files
A

a. “Will You Really Be Going Back”
b. note that .60 is the last file size which increases by only .05 mm** c. Know Stainless Steel vs Ni-Ti files!!! (for sure on final exam 2020)

71
Q
  1. T/F: study about no bacteria would mean no caries
A

a. True - caries was the number one cause of pulpal infection

72
Q
  1. Inconclusive testing what do you do? select two options like refer to MD, refer to neurologist, check for crack (trauma lecture)
A

a. ANSWER: refer to MD and check for crack

73
Q
  1. LEO is disproven:
A

PCOD

74
Q
  1. T/F: ABX to relieve pain and swelling in acute infection
A

a. False

75
Q
  1. Pick incorrect statement regarding pup infection:
A

necrotic pulp and infection in adjacent teeth

76
Q
  1. Most common bacteria (gram - or +)
A

a. gram negative
b. the question was false about lateral spreading

77
Q
  1. T/F: AAA is emergency situation, not CAA (true false question)
A

a. CAA no ABX b/c no fever, just drain that bitch

78
Q
  1. AAA called Phoenix cause it can go from CAA - AAA anytime
A
79
Q
  1. Radiograph with gutta percha out of the end of the apex of root and asked what this was an example
A

a. Perforation

80
Q
  1. Really review the charts for pupal and peri apical dx
A

a. which respond to cold, heat, percussion, if there is DST then what etc.

81
Q
  1. Chronic situations with bacteria:
A

anaerobic bacterial flora

82
Q
  1. T/F: Stundquist study was
A

true; % of bone of cortical and medullary which was true (put true)

83
Q
  1. Apical periodontitis choose what was incorrect:
A

a. necrosis and it could spread to adjacent teeth (I think), chronic/acute AP

Endodontics (15 decks)

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