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Flashcards in perio-endo relationships Deck (12):
1

Deep Caries, Trauma (accident), and Restorative procedures can all create a risk of injury to what?

the pulp vitality

2

the frequency of accessory pulp canals increases towards the _______

apex

3

__________ are often found near furcations

accessory canals

4

what is a Primary perio-endo lesion?

an infection of the pulp (direct infection of the pulp, not due to any perio involvement)

causes inflammation (periodontitis) of the surrounding perio tissues

5

what is a secondary perio-endo lesion?

inflammation of pulp tissue due to accumulation of plaque on root surface

periodontal problems inducing changes in pulp

6

what is the 3rd class of perio-endo lesions?

a "true" combined perio-endo lesion- Pulpal and periodontal pathologies initiate independently and coalesce

patient has BOTH periodontal problems, and direct endodontic inflammation

7

T/F: in a "true" combined perio-endo lesion, the periodontal infection causes inflammation in the pulp

FALSE

in the combined lesion (3rd class of perio-endo lesions) the periodontal and pulpal infections are independent of one another, but occur at the same time

8

T/F: Studies have failed to confirm direct relationship between progression of periodontitis and pulp changes

true

9

how can periodontal bacteria access the pulp?

Accessory canals
Apical foramen
Dentinal tubules

10

what are the endodontic therapy complications that can lead to periodontal infections?

Perforations, vertical fractures

11

how does periodontitis lead to sensitivity of the pulp?

Root exposure (recession)
Cementum (and dentin) removal
Dentinal tubule exposure

12

what condition has the following characteristics:
- Sharp pain, rapid onset
- Peak at 1st week, then subside
- Various stimuli elicit response

dentin hypersensitivity