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Endodontics 2020 > Test #2 Pulpal pathology > Flashcards

Test #2 Pulpal pathology Flashcards

1
Q

What are the pathways of pulpal disease?

A
  • Dentinal Tubules
  • Direct pulp exposure
  • Caries
  • Iatrogenic
  • Trauma
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2
Q

What is the most common cause of pulpal disease?

A

-Caries

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3
Q

T/F Exposed tubules always put pulp at risk

A

True

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4
Q

When a tooth has trauma what can lead to pulpal disease?

A

-A crack

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5
Q

T/F Periodontal disease is a two way street

A

True

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6
Q

Microbes in subgingival biofilms could reach the pulp by the same pathway as what?

A

-Intracanal microbes reach the periodontium

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7
Q

Pulpal necrosis only occurs if periodontal disease (pocket) reaches the apical foramen due to damaged of what?

A

-Blood vessels that penetrate the apical foramen

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8
Q

What is anachoresis?

A

-Microbes transported in blood to areas of tissue damage

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9
Q

Traumatized teeth become infected thru what pathway?

A

-Anachoresis/chemotaxis

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10
Q

What are three reactions that protect the pulp against caries?

A
  • Decrease dentin permeability
  • Tertiary dentin formation
  • Inflammatory and immune responses
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11
Q

Pulp is the only connective tissue in the body with the ability to do what?

A

-Protect itself from certain external irritants

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12
Q

What is the cardinal sign of inflammation?

A

-Swelling

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13
Q

Increased blood flow leads to what?

A
  • Vasodilation

- Increased capillary pressure

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14
Q

What does vasodilation and increased capillary pressure lead to?

A

-Increased capillary filtration

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15
Q

What does increased capillary filtration lead to?

A

-Increased tissue pressure

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16
Q

What does increased tissue pressure result in?

A

-Pulpal pain

17
Q

The increased pressure outside the vessels does what?

A

-Compresses the thin walled venous vessels

18
Q

THe increased pressure outside the vessels that compress the thin walled venous vessels lead to what?

A
  • Decreased blood flow
  • Increased filtration
  • Strangulating the pulpal vessels
19
Q

What does the viscous cycle of response to trauma occur at?

A

-At site of injury and can remain localized for some time especially if irritant is removed

20
Q

If injurious irritant is strong and lasting the inflammation will spread where?

A

-Throughout the pulp from periphery to central to root periapical tissues = pulpal necrosis

21
Q

What cells are found in the inflammatory process?

A
  • PMN
  • Macrophages
  • Plasma cells
22
Q

T/F Mast cells are found in normal/healthy pulps

A

False

-Are not found

23
Q

T/F A pulp polyp is common

A

False

-Rare

24
Q

What is another name of pulp polyp?

A

-Chronic hyperplastic pulpitis

25
Q

What is chronic hyperplastic pulpitis?

A
  • Successive breakdown of pulp stops

- Opening of pulp cavity occurs

26
Q

Instead of necrosis in a pulp polyp what does the pulp tissue do?

A

-Proliferates

27
Q

What type of teeth do chronic hyperplastic pulpitis occur?

A

-Generally young teeth

28
Q

T/F Chronic hyperplastic pulpitis is generally symptomatic

A

False

-Assymptomatic

29
Q

What does surface epithelium from from?

A

-Oral epithelial cell implantation

30
Q

What is pulpal necrosis caused by?

A

-Bacteria and bacterial products or loss of blood supply

31
Q

Infectious agents cause what type of necrosis?

A

-Liquifaction

32
Q

What does blood loss cause?

A

-Ischemia/coagulation and necrosis

33
Q

What causes chemical irritation to the pulp?

A
  • Filings
  • Erosion
  • Bleaching
34
Q

What are some thermal irritants to the pulp?

A
  • Uninsulated large fillings

- Drilling

35
Q

What are some mechanical damages to the pulp?

A
  • Trauma
  • Bruxism
  • Attrition
  • Abrasion
36
Q

What are some direct irritants to the pulp?

A
  • Bacterial irritation from caries
  • Cracked tooth
  • Root fractures

Endodontics 2020 (20 decks)

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