Management of Endodontics failure Flashcards

1
Q

Are PA lesions always present on radiographs?

A

No, which creates confusion when diagnosing

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2
Q

What are two common reasons for failure of endo treatment?

A

Generally, the treatment has not veen done correctly. Might look pretty, doesn’t mean it has been done right.

Missed canals are very common

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3
Q

What are the stages of treatment planning for failed endo cases?

A

Decision making – diagnosis

Consider options – non-surgicalretreatment, retreatment, extraction withor without prosthodontic replacement ormonitor

Write in your notes that you have discussed this

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4
Q

What are the re-treatment techniques?

A

Need to find all the canals – know the anatomy

Ensure the roof of the pulp chamber isentirely removed so you can see all ofthe pulpal floor

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5
Q

What is a restorability assessment?

A

First part of endodontic procedure should always be a restorability assessment

Cause of much endodontic ‘failure’ is restorative

This can often be diagnosed at the outset

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6
Q

What are the steps when re-treating?

A

Removal of GP
Best if possible en masse
Braiding technique
Use of reciprocation / rotary
Hand files and solvent

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7
Q

List a few re-treatment techniques?

A

Use Hedström files
End cutting
Engage into the GP, quarter/half turnand remove
Do not screw into dentine
If can’t engage the GP then soften withsolvent
Important to know what you are trying to remove

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8
Q

How do you finish off the prep after re-treating?

A

Solvent useful at the end to remove sealer and persistent bits of GP
Once GP removed, undertake chemo-mechanical preparation as with a primary RCT case

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9
Q

What are the risks of forcing re-treatment files or GG drills?

A

Easy to create ledges or perforations

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10
Q

What can you use to help engagement of files in the GP?

A

You can use heat

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