9. Endodontic Emergency Flashcards

1
Q
  • “what is an endodontic emergency?”
  • ____ patients: ones that you didn’t plan to see this morning
  • they present with pain, discomfort, swelling and trauma
  • photo shows a patient with a necrotic lower molar - typically seen in an emergency endo situation
A

unscheduled

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2
Q

What is an endodontic emergency?

____ inflammation or infection

  • most of the problems are leading to pulpal and periaplical inflammation and infection
  • Left side - fractured restoration and caries = discomfort for patient
  • Right side - fractured cusp with recurrent decay = caries reaching pulp = significant pain for patient
  • middle photos = premolar necrotic tooth & periapical radiolucency (infection)
  • all of these = patients seeking emergency care
A

pulpal and periapical

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3
Q

What is an endodontic emergency?
An external injury of significant magnitude or
duration injures the pulp.
Low ____ environment. Damaged tissue degenerates.

• an injury to the pulp of significant magnitude and duration causes injury to the pulp tissue
• ____ tissue is low compliance environment: encased in ____ dentin structure, no room for inflammation
or expansion
• starts to break down and degenerate = patient presents with symptoms
• extensive restoration caused pulp to become necrotic and forms radiolucency = swelling ensues and patient
comes to emergency

A

compliance
pulp
rigid

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4
Q

study done by Iqbal (from Penn)
• 2000 patients from emergency
• most common reason that they pursue treatment = ____
◦ decay reaches pulp and causes significant pain • other reasons =
◦ ____ restorations: 18%
◦ post treatment ____: flare-up after root canal started
◦ ____ and fracture = 3%

A

caries
faulty
AP
trauma

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5
Q

3 different types of emergencies
• most common =____
◦ never had endo treatment before
• ____= cases that were started (sometimes they require multiple visits)
• ____ = rarest
◦ all of a sudden the patient gets swelling, biting / percussion sensitivity

A

pre-treatment
intra-treatment
post-obturation

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6
Q

Nonodontogenic pain

Orofacial pain can mimic ____pain.

Patient may interpret pain as a “____ ”.

• before we talk about any endodontic problem = want to talk about nonodontogenic pain
• sometimes the patients won’t have endodontic problems
• x-ray shows maxillary right area - multiple teeth treated endodontically
◦ ____ everything looks fairly normal
◦ no pathology noted
◦ but patient is experiencing extreme pain
◦ orofacial pain can mimic pulpal/periradicular pain
◦ patient may interpret this pain as a toothache
◦ but retreating these teeth will not solve the issue

A

pulpal/periradicular
toothache
radiographically

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7
Q
Nonodontogenic pain
\_\_\_\_
Myocardial pain 
\_\_\_\_ 
Atypical facial pain 
\_\_\_\_ tooth pain 
Herpes zoster
\_\_\_\_ disease
A

trigeminal neuralgia
maxillary sinusitis
phantom
neoplastic

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8
Q

Assessment of a patient in pain

Perceive all symptoms as ____.
Listen, express empathy, and do not judge.
Be ____.
Show a ____ attitude of the patient’s problem. Inform ____ during and after treatment.

A

real
calm and confident
positive
expectations

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9
Q

Pain perception and reaction

Varies greatly according to ____ and physical state.
Reduce ____.
Gain patient ____.
Provide ____.

A

psychologic
anxiety
confidence
empathy

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10
Q

• diagnostic data has to be collected
◦ ____ exam: questions regarding the patient’s pain
◦ ____ exam: clinical tests that we’ve learned to do
‣ percussion, palpation, thermal testing, electric pulp test
◦ ____ exam: X-rays, CBCT images

A

subjective
objective
radiographic

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11
Q

Subjective exam
____
Location of the complaint.
____ of symptoms. Clinical manifestations. ____ of the complaint. Intensity of the complaint. ____ factors.

A

chief complaint
inception
quality
affecting

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12
Q

Chief complaint

always in the patient’s own ____

A

words

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13
Q

Location of the chief complaint

• just because we can take an X-ray doesn’t mean that we can determine what the ____ tooth is

A

offending

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14
Q

Location of the chief complaint

Maxillary molars refer pain to the ____, parietal, and ____ regions.

Mandibular molars refer pain to the ____, angle of the jaw and ____ regions of the neck.

A

zygomatic
occipital

ear
posterior

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15
Q

Location of the chief complaint
Correctly localize pain: ____%
Periradicular pain: ____%

A

73

89

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16
Q

Inception of symptoms
History of ____.
History of ____.
Other events such as ____ surgery or infections.

• always ask for history of dental procedures: was the filling recently placed? did the pain start after the
restoration vs. after a long time (pulp becoming necrotic)
• always ask for history of trauma - especially ____ teeth that develop radiolucencies (maybe they had trauma when they were a kid many years ago and now it is becoming a periapical abscess)
• always ask about sinus surgery / infections: they have more ____ to maxillary teeth, more sensitive to temperature or percussion
* always ask what type of work was done to the teeth before

A

dental procedures
trauma
sinus

anterior
sensitivity

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17
Q

Clinical manifestations

Mode: is the onset or reduction of symptoms ____ or provoked? Sudden or gradual? ____ or delayed?

Period: are symptoms ____ or occasional?

Frequency: ____ or persistent?

Duration: how ____ do the symptoms last? Momentary or lingering?

A

spontaneous
immediate

sporadic
intermittent
long

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18
Q

Quality of the complaint

____ ● dull ● burning throbbing ● stabbing ● shooting aching ● spontaneous

A

sharp

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19
Q

Intensity of the complaint
____: on a scale of 0-10, how much pain are you experiencing now?

____ terms: mild, moderate, or severe.

A

quantity

descriptive

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20
Q

Affecting factors

• affecting factors that intensify or influence the pain that the patient is feeling
• these questions are important because we need to ____ patient’s pain in their own mouth to make our
accurate diagnosis
• reads slide
• sweets or acid = probably ____ problem
• head position - may indicate ____ infection vs. endodontic problem
• have to ask what makes the pain worse or better?
• there are situations where patient has large cup of cold water to constantly drink to keep pain away = ____
• could see diagnosis before examining patient

A

reproduce
restorative
sinus
partial necrosis

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21
Q

if patient drinks something cold and experiences sharp pain is different than dull pain = tells us about the pulp ____

A

degenerating

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22
Q

• biting and chewing are also important questions
• left photo = large spanning bridge - looks fairly normal but patient reports pain biting down - no missing canals, periodontally nothing wrong, but checking occlusion = patient only contacting on ____ spot of the bridge
• right photo: pulpal testing = normal, radiographically no radiolucency, checked occlusion and patient making contact with tooth
• if we didn’t ask about this then we might assume that the pulp needs to be treated and we would be
wrong
• if root canal done, and occlusion is off, patient would still experience these symptoms

A

one

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23
Q

Affecting factors
Head position may indicate ____ infection.
No ____ needed.

A

sinus

endodontics

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24
Q

Affecting factors
Is the discomfort more pronounced at certain times of the day or at night?
bruxism

• another affecting factor = clenching and grinding
• does it happen all day long or is it certain times of the day?
• patient might tell you that teeth are sore in the morning = clenching / grinding while sleeping = recommend
____
• can pulp test teeth, even though it looks normal it comes from clenching / grinding = endo tx not needed
• if pain comes at end of the day / nighttime = from ____ during the day

A

nightguard

clenching

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25
Q

Sequence of emergency treatment

  1. Locate ____ of the complaint.
  2. Make a ____ diagnosis.
  3. Make a ____ diagnosis.

Avoid the temptation to do something if the diagnosis is not cer tain or before a
____ can be made.

A

source
pulpal
periapical
definitive diagnosis

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26
Q
Making pulpal & periapical diagnosis
\_\_\_\_ tests 
\_\_\_\_ test 
\_\_\_\_ test 
\_\_\_\_ analysis
A

thermal
percussion
palpation
x-ray

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27
Q

Making a pulpal diagnosis

Thermal test
Heat test
Electric pulp test

  • ____ for anterior

• most common thing to use = thermal testing
• spray endo ice onto cotton pellet and place pellet on the ____ for anterior / ____ surface for
posterior
• if they have extreme symptoms to temperature and they’re scared - tell them that we need to make an accurate diagnosis / treating the right tooth / have to confirm what tooth they’re talking about - they will understand because they don’t want a root canal that is not necessary
• give instructions beforehand: tell patient going to place something cold on tooth to reproduce the pain that
you’re feeling - when you feel cold sensation on tooth raise hand - when raise hand will take cold away - but hold hand up until you can’t feel the cold any longer

A

incisal edge
incisal edge
occlusal

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28
Q

A vital pulpal diagnosis

Normal
Reversible pulpitis Symptomatic irreversible
Asymptomatic irreversible

if the patient feels a positive response to cold = pulp is ____ to some degree
• different choices for pulp vitality
• could be normal pulp: feel cold when pellet is on and don’t feel it once it’s off - no ____
• reversible pulpitis: if you had a recent filling / OTC bleaching and ____
• symptomatic irreversible pulpitis: hand still remains up when you take pellet off = ____
• asymptomatic irreversible pulpitis: recurrent ____ seen in photo, if you test tooth it might test normal, caries has reached pulp and it has become irreversible
• irreversible = need to do ____, pulp not going back to normal

A
vital
lingering
sensitive
lingering
decay
29
Q

A non-vital pulpal diagnosis

- ____

A

necrosis

30
Q

Making a periapical diagnosis

Percussion: a painful response may indicate ____ inflammation or a ____ tooth.

A

periradicular

cracked

31
Q

Making a periapical diagnosis
First use mild ____ pressure.
If there is no response, increase with ____ pressure or bite stick.

A

finger

mirror

32
Q

Making a periapical diagnosis

____: the sense of touch to determine texture, rigidity, and tenderness.

A

palpation

33
Q

Making a periapical diagnosis
No ____ response.
Periodontal ligament is intact ____.

A

percussion

radiographically

34
Q

Making a periapical diagnosis
Apical ____. Loss of ____ space. Painful to ____.

symptomatic apical periodontitis

A

radiolucency
PDL
percussion

35
Q

Necrotic tooth

percussion: ____
palpation: ____
cold response: ____
heat response: ____
electric pulp test: ____

A
\+
\+
-
-
-
36
Q

Emergency: necrotic tooth

____ throughout the entire root canal system.
Objective: to clean, shape, and disinfect the entire canal system.

A

bacteria

37
Q

Emergency: necrotic tooth

  1. Establish ____ length.
  2. ____ instrumentation
    of the entire root canal.
  3. Allow for any ____.
  4. Irrigation ____, EDTA, CHX.
A

working
biomechanical
drainage
NaOCl

38
Q

Emergency: necrotic tooth

  1. ____ root canal system.
  2. Place intra-canal ____.
  3. ____ access.
  4. Schedule for next visit.
A

dry
medication
seal

39
Q

Emergency: necrotic tooth
____

If we don’t have any drainage from the tooth, we might need to create an incision to relieve the pressure

Then we will suture a ____ in place, so it will keep draining for as long as we want
Q: how long after the appointment will it take for the patient to be out of pain? A: Symptomatic irreversible pulpits = right after the procedure
If it is percussion positive, it might take a few days
If there is swelling/necrotic tooth, it might take a few days too

A

incision and drainage

drain

40
Q

Vital tooth
caries entering the pulp

percussion: ____
palpation: ____
cold response: ____
heat response: ____
electric pulp test: ____

  • Palpation negative b/c we have no ____ infection
  • Expect cold response to be positive and lingering
A
\+
-
\+++
\+
\+

peri-apical

41
Q

Emergency: vital tooth
Pulpotomy: removal of the inflamed ____ portion of vital pulp.
Used only for time ____.

A

coronal

constraints

42
Q

Emergency: vital tooth
Bacteria and inflammation limited to ____ portion.
Objective: due to limited time, minimally remove the inflamed ____ portion.

A

coronal

coronal

43
Q

Vital tooth: pulpotomy

  1. ____ tooth.
  2. ____ removal.
  3. Removed ____ portion. 4. Irrigate with ____.
  4. No ____.
  5. ____ is placed over the canal orifice.
  6. ____ restoration (Cavit) to seal access.
  7. Continue at next visit.
A
access
caries
inflamed
NaOCl
instrumentation
calcium hydroxide
temporary
44
Q

Post-operative instructions

Allow for setting of temporary material. (Cavit takes ~____mins)
Allow of ____ to dissipate.
Expect no ____ from a vital case.
OTC analgesics, if needed. NSAIDs

A

45
anesthesia
thermal sensitivity

45
Q

Anesthesia and irreversible pulpitis

The inflammatory process causes ____ and ____, hampering profound anesthesia.

Hyperalgesia: ____ sensitivity to pain. Allodynia: reaction to a stimulus which does
not ____ provoke pain.

A

hyperalgesia
allodynia

heightened
normally

46
Q

Anesthesia and irreversible pulpitis

Sodium channels in nociceptors are 4x more ____ to local anesthetics.

Presence of ____ channels in symptomatic pulp.

____ can compromise the entire axon extension, reducing the efficacy of anesthesia blocks.

-Nav1.9 are resistant to anesthetics we use today, so they make these teeth
difficulty to numb

A

resistant
Nav1.9
inflammation

47
Q

Does volume of anesthetic matter?

No ____ between the two groups.

A

significance

48
Q

Does type of anesthetic matter?

No ____ between groups (lido v articaine)

A

significance

49
Q

Do supplemental infiltrations help?

(IANB and then a BI)

Supplemental infiltration with ____ is ____ more successful.

A

articaine

significantly

50
Q

Are antibiotics needed?
____ for localized swellings or if drainage is achieved.
Recommend for diffuse ____ or when drainage is not possible.
Systemic involvement, elevated temperature.
Amoxicillin ____mg

A

unnecessary
swellings
500

51
Q
Inter-appointment emergencies
Inadequate \_\_\_\_ 
Debris extrusion 
Over-\_\_\_\_
 Overfilling
\_\_\_\_ lesion Retreatment cases
A

debridement
instrumentation
periapical

52
Q

Leaving teeth open
Drainage is usually achieved within a few ____.
Recommend ____ all teeth to prevent contamination from the oral cavity.
With rare exception all teeth should be closed.

A

minutes

closing

53
Q

ou only feel discomfort when you drink something cold?

Yes, every time something cold touches it

  1. B/c it shows that the tooth is ____.
  2. B/c if the tooth is sensitive to cold, we can test it against ____ teeth to see which one really is infected
A

vital

neighboring

54
Q

If water touches it, the pain stays for at least 5 minutes

That means the pain is ____. It’s not a short-lived pain

A

lingering

55
Q
#30
percussion: \_\_\_\_
palpation: \_\_\_\_
cold response: \_\_\_\_
heat response: \_\_\_\_
EPT: \_\_\_\_

Pulpal diagnosis #30:
____
Periapical diagnosis #30:
____

B/c it is ____ positive, the peri-apical diagnosis is symptomatic apical periodontitis

A
\+
-
\++
\+
\+
\+

symptomatic irreversible pulpitis
sympatomatic apical periodontitis

percussion

56
Q

We had a limited amount of time, so just did a ____ to get the patient out of pain until we could schedule a full appointment to finish treatmen

A

pulpotomy

57
Q

Do you feel discomfort when you drink something cold?
Yes, even cold air sets it off

This shows us that we most likely have a ____ pulp situation

A

vital

58
Q

Clinical manifestations How long do the symptoms last?

  • it’s just throbbing. i could not ____ at all last night
    This is a sign of ____ pain
A

sleep

spontaneous

59
Q

What makes it worse?

Just about everything: ____ water, hot coffee, and even putting my teeth together

This shows she has ____ and percussion sensitivity

A

cold

thermal

60
Q

8

percussion: +
palpation: -
cold response: +++
heat response: ++
EPT: +

Pulpal diagnosis #8:
____
Periapical diagnosis #8:
____

A

sympatomatic irreversible pulpitis

sympatomatic apical periodontitis

61
Q

Available time

  1. ____ the tooth.
  2. Complete caries removal.
  3. Determine ____
  4. Instrument to MAF.
  5. ____ irrigation.
  6. Dry root canal system.
  7. Place ____ medication.
  8. Seal access with temporary material (Cavit).
  9. ____ for next visit.

-Why do we medicate the tooth instead of just closing/finishing it? Because the
patient is still in ____! We don’t want to obdurate unless the patient is asymptomatic

A
access
working length
NaOCl
intra-canal
schedule
pain
62
Q

So she isn’t experiencing pain. She only noticed the ____

#10
percussion: +
palpation: ++
cold: -
heat: -
EPT: -

Pulpal diagnosis #10: ____
Periapical diagnosis #10:
____

The peri-apical diagnosis is not acute apical abscess b/c she is not having any ____ or
pain. She’s ____. It’d be different if she was experiencing pain
Q: Why wouldn’t it be a chronic apical abscess?
A: A chronic apical abscess is when there is a ____ and the infection is draining from it

A

swelling
necrosis
symptomatic apical periodontitis

discomfort
asymptomatic
sinus tract

63
Q
  1. ____ the tooth.
  2. Complete caries removal.
  3. Establish ____.
  4. BMI of the entire root canal.
  5. Allow for any ____.
  6. Irrigation with NaOCl, EDTA, CHX.
  7. ____ root canal system.
  8. Place intra-canal medication.
  9. Seal access with ____ material (Cavit).
  10. Schedule for next visit.
  • We shouldn’t inject ____ above #10 b/c it is swollen there
  • We’ll inject in ____ tissues and allow it spread into the area we want
  • Don’t want to go into infected tissue and spread infection deeper
A
access
working length
drainage
dry
temporary

directly
adjacent

64
Q

We’d expect to see that the ____ has all subsided by the time the patient comes in for the next visit

A

swelling

65
Q

Emergency: vital tooth
Pulpotomy: if ____ amount of time. Complete BMI: if time is ____.
-With a vital tooth, we have 2 different options!

Pulpotomy (limited time) and complete BMI (more time)
-Complete BMI is the more ____ procedure to get the patient out of pain

A

limited
available
predictable

66
Q

Emergency: necrotic tooth

Complete BMI: since bacteria has spread ____ the entire root canal system.

A

throughout

67
Q

An emergency patient
Be prepared.
Take ___ x-rays.
Don’t assume a previous diagnosis is accurate.
Get as much ___ from the patient as possible

A

additional

information

68
Q

An emergency patient

Complete diagnosis and review with faculty.
Explain the need for ___ visits for root canal treatment and final restoration.
Discuss what to expect ___ and after treatment.

-You need to tell patients they will have to come in for ___ appointments to finish the tooth canal -Need to also tell them they will need to come in after the root canal is finished for a ___ restoration -Root canal is scary, so make sure the patient is aware of what is going on and what problems to look out for in-between appointments

A

follow-up
during
multiple
final