Endo-Perio Lesions- FINAL

Question 1

Caries affecting the pulp and subsequent periodontal involvement:

Answer 1

Primary endodontic

Question 2

Periodontal destruction that THEN affects the pulp:

Answer 2

Primary periodontal

Question 3

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

Answer 3

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

Question 4

What are the diagnosis options for endo-perio lesions?

Answer 4

1. Hopeless (usually due to trauma/iatrogenic factors & 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 resorbtion

Question 6

List the physical routes 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 radiogrpahical isolated vertical bone loss
• teardrop radiolucency
• can mimic symptoms of perio and endo
• may be sen as incomplete crown, root, or tooth fracture