Discolouration after root canal treatment

Doctor, why does this yellow discolouration occur after root canal treatment? Is it from sealer remnants, or is there another reason?

Translated version of the Turkish original

It can occur because the access cavity has not been opened widely enough to include the pulp horns, sealer remnants have not been completely removed, the tooth has remained necrotic for a long time, or there is extensive calcification in the tooth.

Author of the original answer: Doç. Dr. İsmail Davut Çapar

Medical review of the Turkish original:

Turkish answer published on this website:

Translation published:

The review date refers to the Turkish original; it does not indicate a separate medical review of the translation.

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