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Periodontology > 6. Periodontal Pocket Formation and Bone Loss > Flashcards

6. Periodontal Pocket Formation and Bone Loss Flashcards

1
Q

5

What kind of radiograph is needed for all patients in periodontal clinic?

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2
Q

5

What do periapical radiographs do?

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3
Q

5

What technique is used for periapical radiographs?

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4
Q

5

What is a horizontal bitewing used for?

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5
Q

5

What is a vertical bitewing used for?

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6
Q

5

What are bitewings best used to evaluate?

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7
Q

5

What type of radiograph has the least interproximal bone distortion?

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8
Q

6

What are the two definitions for periodontal pockets?

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9
Q

7

What is another name for a Gingival Pocket?

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10
Q

7

How is a gingival pocket formed?

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11
Q

7

When does a periodontal pocket form?

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12
Q

8

What are the three classifications of pockets?

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13
Q

9

What are the 2 types of periodontal pockets?

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14
Q

9

Where is the bottom of the pocket of a suprabony pocket relative to the alveolar bone?

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15
Q

9

Where is the bottom of an intrabony pocket relative to the alveolar bone?

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16
Q

9

For an intrabony periodontal pocket, the pocket wall lies between the ______ and the ______.

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17
Q

10

What is the initial lesion in the development of periodontitis?

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18
Q

11

What is the first step of pocket formation?

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19
Q

11

What fibers are destroyed when there is inflammation in the connective tissue wall of the gingival sulcus?

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20
Q

11

What does the junctional epithelium do as a result of loss of gingival collagen fibers?

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21
Q

13

What happens to the cementum facing the pocket wall when there is pocket formation?

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22
Q

13

What two things do bacteria penetrate when the cementum facing the pocket wall becomes exposed to the oral environment?

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23
Q

14

Scaling an root planing should remove _____ of the cementum to _______.

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24
Q

14

Bacteria may evade the host defense and scaling and root planing efforts by ________.

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25
Q

16

What is the formula for Clinical Attachment Loss?

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26
Q

19

Gingival margin position is relative to the _____.

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27
Q

21

What is it called when the gingival margin is apical to the CEJ?

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28
Q

21

Is the number for gingival margin when there is recession negative or positive?

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29
Q

21

Is the number for the gingival margin when the gingival margin is coronal to the CEJ negative or positive?

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30
Q

21

What is the number for the gingival margin when the gingival margin is at the CEJ?

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31
Q

24

What instrument do you use to detect a subgingival CEJ?

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32
Q

24

Detecting Subgingival CEJs:

  1. Insert pribe into the ____ to feel for the CEJ.
  2. Hold the probe at a ____ angle when detecting CEJs.
  3. Measure where the gingival margin _____.
  4. Record gingival margin as a _____ number.
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33
Q

25

What is the gingival margin a negative or positive number when the interdental papilla fills the interproximal space?

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34
Q

26

Is the interproximal gingival margin negative or positive when there is gingival recession and there is an open interproximal space?

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35
Q

27

What is the clinical attachment loss value when the probe depth is 6 mm and the GM is -2mm?

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36
Q

32

Clinical attachment loss tells you how much attachment loss there is from the _____. It is the distance from the ____ to the ______.

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37
Q

33

Periodontal disease activity goes through periods of ______ and ______.

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38
Q

33

Does periodontal destruction occur in all areas of the mouth at the same time?

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39
Q

35

What marks the transition from gingivitis to periodontitis?

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40
Q

36

The mechanism of bone destruction is ____ and ____ mediated.

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41
Q

36

Bacterial products such as ____ induce the differentiation of osteoclasts in the mechanism of bone destruction.

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42
Q

36

What are three host factors released by inflammatory cells that induce bone resorption?

A
43
Q

37

What is the critical distance for the radius of action where there is locally produced bone resorption? What if the radius is greater than this distance?

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44
Q

38

Alveolar bone responds to inflammation by ____ and ____. Periodontal bone loss occurs when ____ dominates ____.

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45
Q

39

What are 6 factors that increase the risk for periodontal bone loss?

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46
Q

40

Smoking Effects on Periodontitis:

  1. ______ risk for periodontitis
  2. _____ dependent
  3. _____ important
  4. ____ Years
A
47
Q

41

What is the formula for Pack Years for smokers?

A
48
Q

42

What is the most common bone destruction pattern?

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49
Q

42

In which dimension is bone lost in horizontal bone loss?

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50
Q

42

In horizontal bone loss, the bone margin remains ____ to the root.

A
51
Q

42

In which direction is bone lost in verticular (angular) bone loss?

A
52
Q

42

Vertical bone loss leads to the formation of which type of periodontal pockets?

A
53
Q

What is this an image of?

A

Horizontal Bone Loss

54
Q

What is the slanted line an image of?

A

Vertical Bone Loss

55
Q

48

Radiographs underestimate bone loss by up to ____ mm.

A
56
Q

48

Normal bone levels are ____ mm from the CEJ to the osseous crest.

A
57
Q

48

What two tissues are attached in normal bone levels? What is the name for these attached tissues?

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58
Q

48

How do you determine bone loss using a bitewing radiograph? (2 bullet points under “To determine bone loss”)

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59
Q

50

What percentage and mm measurement represents slight bone loss?

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60
Q

50

What percentage and mm measurement represents moderate bone loss?

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61
Q

50

What percentage and mm measurement represents severe bone loss?

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62
Q

51

Are facial and lingual bone loss easy or difficult to visualize on radiographs?

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63
Q

51

What should you look for when analyzing facial and lingual bone loss?

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64
Q

53

What is an early radiographic change in periodontitis?

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65
Q

55

What effect will occlusal trauma have on the PDL?

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66
Q

55

What type of defects will there be in bone due to occlusal trauma?

A
67
Q

55

What effect will occlusal trauma have on the lamina dura?

A
68
Q

55

Will Fremitus occur as a result of occlusal trauma?

A
69
Q

58

A vertical defect can only occur if the interproximal space is wider than ____ mm.

A
70
Q

58

Interproximal spaces less than 2.5 mm have ____ bone loss.

A
71
Q

60

Close root proximity is measured from ____ to ____ of adjacent teeth.

A
72
Q

60

What is the measurement for close root proximity?

A
73
Q

60

What type of bone loss will result from close root proximity?

A
74
Q

61

Classifications of vertical defects are based on the number of _______.

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75
Q

61

What are the three classifications of vertical defects?

A
76
Q

66

Why do narrow vertical defects have a better prognosis than wide vertical defects?

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77
Q

66

Vertical defects must be how deep for a bone graft to be placed?

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78
Q

66

Can vertical defects be grafted?

A
79
Q

66

Can horizontal defects be grafted?

A
80
Q

67

What are osseous craters?

A
81
Q

68

What is a positive osseous architecture?

A
82
Q

68

What is a negative osseous architecture?

A
83
Q

68

What is a flat osseous architecture?

A
84
Q

71

What is the 3-4-5 rule for the location of furcations on the maxillary 1st molar?

A
85
Q

71

What is the root trunk length?

A
86
Q

72

What is the 3-4 rule for the location of furcations of the mandibular 1st molar?

A
87
Q

73

When would you suspect furcation involvement for a maxillary 1st molar?

A
88
Q

74

Where are the two furcations on a maxillary 1st premolar?

A
89
Q

74

In what percent of cases does the maxillary first premolar have a bifurcation?

A
90
Q

74

How far apical to the CEJ is the bifurcation of a maxillary 1st premolar?

A
91
Q

74

What is the clinical implication of the bifurcation of a maxillary 1st premolar being 8 mm apical to the CEJ?

A
92
Q

75

What is exostosis?

A
93
Q

75

What may exostosis be related to?

A

Periodontology (10 decks)

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