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Pathology periapical cysts

Question 1 of 32

1

What is apical periodontitis?

Select one of the following:

  • A cyst which forms due to frustrated healing

  • Inflammation around the periodontal ligament at the root apex of the tooth

  • An abscess present at the apex of the tooth

Explanation

Question 2 of 32

1

Which of these are common causes of apical periodontitis?

Select one or more of the following:

  • Iatrogenic

  • Trauma

  • Pulp necrosis following caries

Explanation

Question 3 of 32

1

Fill the blank spaces to complete the text.

Clinical features of acute apical periodontitis:

Tooth in socket
on biting
pain
Thermal change induce pain

Explanation

Question 4 of 32

1

What is a radiographic feature of acute apical periodontitis?

Select one of the following:

  • Widening of the PDL space

  • Large radiolucency

  • Granulomatous tissue at the apex

Explanation

Question 5 of 32

1

Fill the blank spaces to complete the text.

Histological features of acute apical periodontitis:

Vascular
O
infiltration
of surrounding if irritant not removed
If associated with infection,

Explanation

Question 6 of 32

1

Chronic apical periodontitis is the most common sequelae of

Select one of the following:

  • Pulpitis and acute periapical periodontitis

  • Pulpitis only

  • Acute periapical periodontitis only

Explanation

Question 7 of 32

1

Fill the blank spaces to complete the text.

Clinical features of chronic apical periodontitis:

T ( sound)
Mild pain on
in socket
Can be a

Explanation

Question 8 of 32

1

Fill the blank spaces to complete the text.

Radiographic features of chronic apical periodontitis:

of the ligament at the root apex
area attached to the root apex

Explanation

Question 9 of 32

1

Fill the blank spaces to complete the text.

Histological features of chronic apical periodontitis:

Infiltration of m/l/plasma cells
tissue
crystals
H

Explanation

Question 10 of 32

1

Fill the blank spaces to complete the text.

The epithelial lining of radicular cysts may be derived from:

cell rests of
epithelium of the
Oral epithelium from a f tract

Explanation

Question 11 of 32

1

What are some sequelae of chronic apical periodontitis?

Select one or more of the following:

  • Radicular cyst

  • Acute apical periodontitis

  • Hypercementosis

  • Chronic apical abscess

  • Acute pulpitis

Explanation

Question 12 of 32

1

What are some developmental odontogenic cysts?

Select one or more of the following:

  • Eruption cyst

  • Gingival cyst

  • Odontogenic keratocyst

  • Radicular cyst

  • Paradental cyst

Explanation

Question 13 of 32

1

What are some inflammatory odontogenic cysts?

Select one or more of the following:

  • Radicular cyst

  • Residual cyst

  • Paradental cyst

  • Odontogenic keratocyst

  • Eruption cyst

Explanation

Question 14 of 32

1

Epithelial cell rests of serres give rise to...

Select one or more of the following:

  • Odontogenic keratocyst

  • Gingival cyst

  • Lateral periodontal cyst

  • Eruption cyst

  • Radicular cyst

Explanation

Question 15 of 32

1

Reduced enamel epithelium gives rise to...

Select one or more of the following:

  • Eruption cyst

  • Paradental cyst

  • Dentigerous cyst

  • Odontogenic keratocyst

  • Gingival cyst

Explanation

Question 16 of 32

1

Epithelial cell rests of serres give rise to odontogenic keratocysts and eruption cysts

Select one of the following:

  • True
  • False

Explanation

Question 17 of 32

1

Reduced enamel epithelium gives rise to eruption cyst, paradental cyst and dentigerous cyst

Select one of the following:

  • True
  • False

Explanation

Question 18 of 32

1

Epithelial cell rests of malassez are the source of all radicular cysts

Select one of the following:

  • True
  • False

Explanation

Question 19 of 32

1

Pocket radicular cysts are

Select one of the following:

  • Surrounding and continuous with the root canal and apex

  • Independent of the root canal and completely enclosed by epithelial lining

  • Open to the root canal and the periapical tissues

Explanation

Question 20 of 32

1

True radicular cysts are

Select one of the following:

  • Surrounding and continuous with the root canal and apex

  • Independent of the root canal and completely enclosed by epithelial lining

  • Open to the root canal and the periapical tissues

Explanation

Question 21 of 32

1

Fill the blank spaces to complete the text.

The cyst cavity of a radicular cyst develops from death of the cells and necrosis of the tissue.

Explanation

Question 22 of 32

1

Fill the blank spaces to complete the text.

Clinical features of radicular cysts:

Majority are
N
Sensitive to
anteriors most commonly affected

Explanation

Question 23 of 32

1

Fill the blank spaces to complete the text.

Histological features of radicular cysts:

epithelial lining
crystals
Plasma cell and infiltration
bodies
Epithelial mucus

Explanation

Question 24 of 32

1

Fill the blank spaces to complete the text.

Contents of a radicular cyst:

proteins
I
crystals
W

Explanation

Question 25 of 32

1

What type of molecule breaks down bone matrix to make room for cyst expansion?

Select one of the following:

  • Collagenases

  • Osteoclasts

  • Osteoblasts

Explanation

Question 26 of 32

1

Fill the blank spaces to complete the text.

A radicular cysts lumen is when compared to the inflammatory exudate. This means breakdown products in the inflammatory exudate travel into the which draws more water in, leading to further .

Explanation

Question 27 of 32

1

Which molecules are important in bone resorption

Select one or more of the following:

  • Apical osteoclasts

  • PGE2

  • PGF2-alpha

  • IL-6

  • TNF-a

Explanation

Question 28 of 32

1

Fill the blank spaces to complete the text.

Features of residual cysts are:

connective tissue
Retained after
epithelium

Explanation

Question 29 of 32

1

Fill the blank spaces to complete the text.

Condensing osteitis leads to dense s bone being deposited around the root apex due to low grade .

Radiographic features include radio mass surrounding the of the root(s). The periodontal ligament is also .

Histological features include dense bony t with little marrow tissue.

Explanation

Question 30 of 32

1

Fill the blank spaces to complete the text.

In periapical cemental d -osseous tissue replaces bone. It most commonly occurs in the anterior .

Explanation

Question 31 of 32

1

Fill the blank spaces to complete the text.

The three stages of periapical cemental dysplasia are:

Osteo
Cemento
M

Explanation

Question 32 of 32

1

Fill the blank spaces to complete the text.

Acute alveolar abscess is a process following on from periapical periodontitis. It causes initial t of the tooth which goes on to become extremely painful.

Radiographic features including slight of the periodontal ligament space

Histological features include:
Disintegrating s
C debris
N material
Bacterial c
V

Explanation

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