Periodontology

Question 1

Which fibers are apical to junctional epithelium; extend obliquely from cementum to alveolar bone?

Answer 1

Alveolar crest fibers

Question 2

Which fibers extend at right angles to long axis of the tooth?

Answer 2

Horizontal fibers

Question 3

Which fibers extend from apical aspect of cementum to base of the tooth socket?

Answer 3

Apical fibers

Question 4

Which cells are the MOST prominent cell in the PDL; responsible for collagen synthesis and degradation?

Answer 4

Fibroblasts

Question 5

Which gingival disease is associated with plaque only?

Answer 5

Dental plaque induced gingival disease

Question 6

What are 2 specific causes of gingival inflammation?

Answer 6

1. open contacts

2. subgingival margins of restorations

Question 7

Gingivitis results from what?

Answer 7

ulceration at the base of the sulcus

Question 8

What 4 microbes are MOST often associated with NUP and NUG?

Answer 8

1. Spirochetes
2. Fusobacterium
3. Prevotella intermedia
4. Porphymonas gingivalis

Question 9

Which abscess results from the injury to or infection of surface gingival tissue?

Answer 9

Gingival abscess

Question 10

Which abscess results when infection spreads deep into periodontal pockets and drainage is blocked (food impaction, calculus, etc.) *may develop after periodontal debridement

Answer 10

Periodontal abscess

Question 11

Which abscess develops in inflamed dental follicular tissue overlying the crown of a partially erupted tooth (most often mandibular 3rd molars)?

Answer 11

Pericoronal abscess

Question 12

Which abscess results from pulp infection (usually second to deep tooth decay)?

Answer 12

Periapical abscess

Question 13

A mild pulpal inflammation usually resulting from placement of a deep restoration; associated with episodic temp related pain which improves with deposition of reparative dentin is called?

Answer 13

Reversible pulpitis

Question 14

Is marginal tissue stippled in periodontitis?

Answer 14

no

Question 15

What type of organisms grow in an environment containing atmospheric levels of oxygen?

Answer 15

aerobic organisms

Question 16

What type of organisms grown in an environment which lacks oxygen?

Answer 16

anaerobic organisms

Question 17

What is the most common perio pathogen?

Answer 17

Porphymonas gingivalis

Question 18

What two microbes are MOST often associated with periodontal inflammation during pregnancy?

Answer 18

P. intermedia and C. rectus

Question 19

What makes up the bulk of plaque biofilm and functions to hold bacteria together in a biofilm?

Answer 19

Extracellular matrix

Question 20

What are found in the acquired pellicle?

Answer 20

glycoproteins

Question 21

The oral physiotherapy aid MOST suited for removal of loosely adherent plaque is what?

Answer 21

Oral irrigator

Question 22

What bacterial product is associated with Gram negative bacteria and can harm PMNs?

Answer 22

Endotoxins

Question 23

What is a bacterial waste product called?

Answer 23

Exotoxin

Question 24

Clinical signs of gingivitis appear during what stage of periodontal lesions?

Answer 24

Stage 2 (4-7 days)

Question 25

List the 7 hemodynamic events of inflammation

Answer 25

1. Vasoconstriction 2. Vasodilation 3. hyperemia 4. margination 5. pavementing 6. diapidesis/emigration 7. edema

Question 26

The movement of cells to the site of inflammation is called what?

Answer 26

Chemotaxis

Question 27

Excessive force on tooth with normal bone support is called?

Answer 27

Primary occlusal trauma

Question 28

Normal or excessive force on tooth with loss of support is called?

Answer 28

Secondary occlusal trauma

Question 29

Increased mobility, tooth migration, sensitivity and radiographic widening of the PDL are signs and symptoms of what?

Answer 29

Occlusal trauma

Question 30

Enlargement due to an increase in cell size is called?

Answer 30

hypertrophy

Question 31

Enlargement due to an increase in cell numbers is called?

Answer 31

hyperplasia

Question 32

What regenerative procedure uses barrier membrane to block migration of epithelial cells?

Answer 32

Guided tissue regeneration

Question 33

The main reason people receive regenerative procedures is to treat what?

Answer 33

infrabony defects

Question 34

What cause swelling, pain and inflammation?

Answer 34

prostaglandins

Question 35

What cause inflammation, bronchoconstriction, airway obstruction and increase cellular infiltration and cytokine release (including interleukins)?

Answer 35

leukotrines

Question 36

What represents a loss of alveolar bone (typically on the facial aspect) that leaves a characteristic oval, root-exposed defect from the CEJ apically (the defect may be 1-2mm long or may extend the full length of the root

Answer 36

dehiscence

Question 37

List 3 characteristic features of dehiscence

Answer 37

1. gingival recession 2. alveolar bone loss 3. root exposure

Question 38

A window of bone loss on the facial or lingual aspect of a tooth that places the exposed root surface directly in contact with gingival or mucosal tissue is called?

Answer 38

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