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Endodontics > Endo Final Studyguide (21 + 22) > Flashcards

Endo Final Studyguide (21 + 22) Flashcards

1
Q

T/F: Inject LA in swollen tissue

A

False

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2
Q

Best LA for bone penetration:

A

Articaine (Thiophene ring)

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3
Q

Taper of hand instruments at UMKC:

A

0.04

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4
Q

Ludwig tissue spaces include:

A

Sublingual
Submandibular
Submental

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5
Q

T/F: The best prognosis is soley based on time for HRF

A

False- it is based on

  1. time since injury
  2. age of patient
  3. cooperation of patient
  4. follow-up availability
  5. approximation opportunity
  6. stabilization options
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6
Q

Children under 5 years _____ injuries in primary dentition, ______ is the most common injury:

A

1/3; luxation

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7
Q

Adolescents 12 years of age ______ suffer dental trauma, most common is _________

A

20-30%; uncomplicated crown fracture

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8
Q

Most common of all dental injuries:

A

luxation injuries

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9
Q

Order of least to greatest damage of luxation injuries:

A
  1. concussion
  2. subluxation
  3. extrusion
  4. lateral
  5. intrusive
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10
Q

Direction & pressure to get straight file through canal

A

watch winding turn

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11
Q

Best way to check for pulp being numb:

A

endo ice- whatever was causing tooth to have pain in the first place

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12
Q

T/F: J lesion on X-ray safe to assume VRF

A

False

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13
Q

Uncomplicated root fracture involves:

A

dentin + enamel (no pulp)

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14
Q

Ability to point to an exact tooth means what has been affected?

A

Inflammation of PDL

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15
Q

T/F: Vital pulpal therapy (VPT) is an appropriate alternative for Class 3 HRF:

A
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16
Q

T/F: Would a small pulp exposure with no other dental history turn diagnosis into irreversible pulpits?

A

True?

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17
Q

HRF worst outcome:

A

No healing; inflammatory tissue

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18
Q

T/F: The most important outcome for HRF is the time it occured

A

False

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19
Q

Lease severe of luxation injuries:

A

concussion

(intrusion = most severe)

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20
Q

Order of laxation injuries least to most severe:

A
  1. concussion
  2. subluxation
  3. extrusion
  4. lateral
  5. intrusion
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21
Q

Most severe luxation injury:

A

intrusion

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22
Q

It is recommended to run avulsed tooth under all but:

A

tap water

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23
Q

Shorter supplemental injection:

A

intra-pulpal

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24
Q

% NaOCl:

A

8.3%

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25
Q

How long must you irrigate with NaOCl?

A

30 min

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26
Q

Classic example of irreversible asymptomatic pulpitis (AIP):

A

Polyp

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27
Q

T/F: Cold test was negative, to confirms do EPT

A

True

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28
Q

Total removal of all pulp canal to terminal end:

A

Pulpectomy

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29
Q

T/F: Long needle for Now Gates is required

A

False

30
Q

T/F: #4 bur on mandibular incisors

A

False- #2 bur is use on anterior teeth

31
Q

Maxillary premolar access shape:

A

Oval with MD buccal-palatal

32
Q

All of the following are VRF except:

a- J shape
b- drop pocket
c- elevated temp
d- previously treated successful RCT

A

c- elevated temp

33
Q

% of treatments that are left in RCT:

A

30%

34
Q

T/F: Use bur to find canal

A

False

35
Q

NaOCl breaks down and becomes inactive within:

A

3-5 min

36
Q

Dentist removed nerve and put temporary material in the tooth, what is the diagnosis:

A

Previously initiated treatment

37
Q

Previous dentist removed nerve and tooth is not responsive to sensitivity tests. No PARL. Periapical diagnosis:

A

Healthy tissue

38
Q

What is used to ensure a seal is placed in addition to a rubber dam:

A

Oraseal

39
Q

DST is indicative of:

A

Chronic apical abscess (CAA)

40
Q

Pimple on gums is indicative of:

A

Chronical apical abscess (CAA)

41
Q

T/F: If you cannot place a rubber dam than it is below the standard of care

A

True

42
Q

MB2 canal with maxillary first molar seen 95% of cases:

A

True

43
Q

What tooth causes the most issues when trying to numb?

A

Mandibular first molar

44
Q

Lingering pain is a sign of:

A

irreversible symptomatic pulpitis

45
Q

Toothbrush abrasion, hypersensitivity to cold, but normal response for all other clinical tests:

A

Reversible pulpitis

46
Q

T/F: VRF has a better prognosis than HRF

A

False

47
Q

There is a J shaped lesion & a single mm perio pocket drop off on previously treated RCT, with this information it is safe to assume it is VRF:

A

False- you have to surgically expose

48
Q

Why would you use VPT on immature tooth with open apex?

A

Allows roots to get stronger and apex to close

49
Q

Most important factor in acheiving favorable outcome in an avulsed tooth:

A

dry time

50
Q

IRR has excellent prognosis if RCT is done before perforation into PDL space. ERR has poor prognosis:

A

Both statements true

51
Q

Rigid & semi-flexible prevents ankylosis by allowing for some small movements:

A

False (not rigid)

52
Q

On a mandibular incisor there can be two canals. Which one are you likely to miss if you do not create your access incisally?

A

The lingual

53
Q

Access depth:

A

7 mm

54
Q

Which bur for mandibular incisor access?

A

2 round or 333

55
Q

Narrowest MD access?

A

Mandibular central

56
Q

Shape of access for maxillary central incisor:

A

Triangle with base at incisal

57
Q

Most likely to have two roots:

A

Max 1st premolar

58
Q

The worst thing you can do during access:

A

perforation

59
Q

If you fail to locate & obturate a root canal during RCT it is likely it will fail:

A

true

60
Q

Manidbular molar has a _____ outline and try to avoid missing the ____ canal

A

Trapezoidal; DL

61
Q

what is true about MB2 canals with maxillary first molars?

A

Seen in 95% of cases

62
Q

Most common reason for pretreatment of maxillary first molars:

A

MB2 canal

63
Q

Hardest root canal to perform:

A

Maxillary molar with 5 canals

64
Q

Biggest challenge for anesthetic:

A

mandibular molar with SIP

65
Q

What is the most important factor regarding 8.3% NaOCl?

A

DON’T let needle bind

66
Q

What is the first thing to do after 1 min of EDTA use?

A

NaOCl to inactivate the EDTA

67
Q

Taper of blue vortex rotary files:

A

0.06

68
Q

Which file is used for scouting?

A

10 SS hand file

69
Q

How to get the SS stuck in the dentin:

A

Continued clockwise rotation

70
Q

When using a straight file a ledge is created in which area?

A

Outer wall of canal

71
Q
A

Endodontics (17 decks)

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