Endo Perio Lesions

Question 1

Caries effecting pulp with subsequent periodontal involvement:

Answer 1

Primary endodontic

Question 2

Periodontal destruction that THEN affects the pulp:

Answer 2

Primary perio

Question 3

anatomic risk factors that affect the prognosis of endo-perio lesions:

Answer 3

1. root grooves
2. furcation involvement
3. PFM crowns and active carious lesions

Question 4

What are the diagnosis options for endo-perio lesion?

Answer 4

1. hopeless (usually due to trauma/iatrogenic factors and leads to extraction)
2. poor
3. favorable

Question 5

Endo-perio lesion WITH root damage:

Answer 5

1. root fracture or crack
2. Root canal or chamber perf
3. external root resorption

Question 6

What are the physical roots of communication in a PERIO-ENDO lesion:

Answer 6

1. apical foramen
2. lateral (accessory) canals
3. dentinal tubules
4. iatrogenic

Question 7

Osseous lesions of ENDO origin can be expected to:

Answer 7

heal completely

Question 8

Osseous lesions of PERIO origin are usually:

Answer 8

not reversible and depend on defect morphology for outcome of treatment

Question 9

T/F: The greater the periodontal involvement the WORSE the prognosis

Answer 9

True

Question 10

what is the top differential diagnosis for a PERIO-endo lesion?

Answer 10

Incomplete tooth fracture

• characterized by radiographic isololated bone loss
• tear drop radiolucency
• can mimic symptoms of perio or endo
• may be seen as incomplete crown, root or tooth fracture