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Endo > PA Pathology > Flashcards

PA Pathology Flashcards

1
Q

What does bone resorption try to accomplish

A

provides a separation bn the irritants and bone to prevent osteomyelitis

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2
Q

What are three inflammatory mediators

A

Vasodilation
Increased vascular permeability
Recruit inflammatory cells from blood circulation

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3
Q

What are 5 PA pathosis classifications

A 
SAP; symptomatic apical perio
AAP; Asymptomatic apical perio
AAA; Acute Apical Abscess
CAA; Chronic Apical Abscess
Condening Osteitis
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4
Q

What is AAP

A

First extension of pulpal inflammation into periradicular tissues.
Irritants; inflammatory mediators from irreversible pulpitis
Bacterial toxins from necrotic pulp.
Chemicals; irrigants,
Hyperocclusion
Overinstrumentation
Overextension of obturation materials

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5
Q

What are some Sx SAP

A 
Spontaneous pain
Acute pain to biting/percussion
May or may not respond to pulp vitality tests
Possible PA radiolucency
Widened PDL
Possible liquefaction necrosis
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6
Q

What is the tx for SAP

A

Vital; remove irritant or RCT

Necrotic; RCT

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7
Q

What is the cause of AAP

A

Pulpal necrosis
Sequel to SAP
Chronic

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8
Q

What are the sx of AAP

A 
Little or no pain
No response to pulp vitality tests
slight sensitivity to palpation
Widened PDL
Granuloma 59%
Cyst 22%
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9
Q

If histology comes back with epithelium then

A

Lesion has been there for a while

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10
Q

What is the tx for AAP

A

remove cause; RCT or Extraction

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11
Q

What is condensing osteitis

A

Variant of AAP
Increase in trabecular bone
Usually associated with large restoration

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12
Q

Where does condensing osteitis occur mostly

A

posterior teeth

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13
Q

What is osteosclerosis

A

hardening of the bone
usually asymptomatic
Not associated with restoration

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14
Q

What is AAA

A

Localized or diffused liquefaction of pulpal origin
Destroys PA tissues
Disintegrating PMNs
Abcess within a granuloma

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15
Q

What are the sx of AAA

A 
Rapid onset 
Moderate to severe discomfort
Purulent sinus tract
granulomatous tissue surrounding the abscess
lymphadenopathy
PA radiolucency
No response to pulp vitality tests
Mobility
Frequently febrile
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16
Q

What is the tx for AAA

A

RCT
possible I&D
Abx

17
Q

What are the sx of CAA

A 
Asymptomatic
Not sensitive to biting
May feel different to percussion
No response to pulp vitality tests
Apical radiolucency
Mucosal or facial sinus tract
18
Q

80% of cutaneous draining sinus tracts come from

A

mandibular teeth with 40% being anteriors

19
Q

What is the tx for CAA

A

Remove the causative irritant; RCT

20
Q

What cases require RCT

A 
Hyperpalstic pulpitis
Irreversible pulpitis
Necrotic pulp
SAP
AAP
AAA
CAA
Condensing osteitis

Endo (15 decks)

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