ENDO Outcomes and Managing Failure

Question 1

When should RCT be Assessed?

Answer 1

at least after 1 year

Question 2

What would be Favourable Outcomes?

Answer 2

no pain
no swelling
no symptoms
no sinus tract
no loss of function
radiographic evidence of normal PDL

Question 3

What determines an Uncertain Outcome?

Answer 3

if lesion is same size or only smaller

Question 4

According to the ‘Strict Criteria’ If there is an uncertain outcome, how long should the lesion be assessed for?

Answer 4

until resolved or at least 4 years for the tooth to return a normal radiographic appearance OTHERWISE FAILURE

Question 5

What other Alternative Treatment can be Used for good success rate?

Answer 5

implant

Question 6

When is RCT associated with post-treatment disease?

Answer 6

when lesion persists after 4 years

Question 7

According to Loose Criteria, what is the success rate for endo?

Answer 7

90%

Question 8

What is the Loose Criteria?

Answer 8

tooth should fit all favourable outcomes, clinically more practical

Question 9

4 Factors Contributing to Success

Answer 9

• absence of lesion
• work to working length
• well condensed filling with no void
• good quality coronal restoration

Question 10

4 Factors Contributing to Failure?

Answer 10

• sinus
• increased lesion size
• flare up
• no perforation

Question 11

Which way does a canal scleroses?

Answer 11

from the top, down - so if you can access the top, should be able to access it all

Question 12

What is Iatrogenicic Damage in RCT?

Answer 12

creation of ledges