Perio Ch 7&8 Flashcards Preview

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Flashcards in Perio Ch 7&8 Deck (17):
1

Do local contributing factors initiate periodontal disease?

No, it contributes to the process already initiated and may increase the risk of developing the disease

2

What are the 3 ways local contributing factors increase the risk of disease?

1. Increase biofilm retention (rough edge on a restoration)

2. Increase biofilm pathogenicity (biofilm- covered calculus deposit)

3. Cause direct damage to the periodontium (heavy chewing forces on tooth)

3

2 factors that increase biofilm retention?

Dental calculus
Tooth morphology

4

3 modes of calculus attachment to the tooth

1. Attach to pellicle (most common means of attachment to surface of the tooth) easy removal

2. Attach to tooth irregularities (difficult to remove due to deposits in tooth defects)

3. Attach by direct contact to the tooth (firmly interlocked and difficult to remove)

5

What is the ability of the bacteria in biofilm to produce periodontal disease?

Pathogenicity

6

What are the causes that cause direct damage to the periodontium?

Food impaction
Patient habits
Faulty restorations
Occlusal forces

7

Local contributing factors are?

Dental calculus
Latrogenic factors
Dental decay
Trauma
Anatomic

Unintentionally caused by dental work

8

What position do you measure occlusion in?

Centric relation

9

What is any deviation from normal termed?

Malocclusion

10

Physiologic occlusion is what?

Not ideal but is symptom free and adapts to deviated occlusion

11

What is pathologic occlusion?

Dentition shows signs and the other has symptom of occlusal disease

12

Normal overbite?

2-5mm

13

Para functional occlusal forces

Results from tooth to tooth contact when not in the act of eating

Ex: clenching, bruxism, nail biting, tongue thrusting, thumb sucking, pencil chewing

14

Is gingiva affected by excessive occlusal forces?

No

15

Does occlusal trauma alone cause gingivitis, periodontitis, pocket formation or gingival recession?

No

16

Signs of trauma from occlusion?

- tooth mobility
- sensitivity to pressure
- migration of teeth
- enlarged, funnel shaped PDL space
- alveolar bone resorption

17

What is it called when the index finger is placed partially on the facial tooth surfaces and the gingiva. Tooth movements can be detected when the of taps the teeth together and grinds side to side

Fremitus