Previous Root Canal Treatment
A tooth may develop internal discoloration after a previous root canal treatment.

Internal bleaching is a conservative cosmetic procedure performed on teeth that have darkened from an internal source. Dr. Surbhi Puri offers this treatment to help restore a more natural appearance while preserving your tooth structure.
Internal bleaching is a conservative cosmetic procedure performed on teeth that have darkened from an internal source. Dr. Surbhi Puri offers this treatment to help restore a more natural appearance while preserving your tooth structure.


A tooth can darken from within for several common reasons, including:
A tooth may develop internal discoloration after a previous root canal treatment.
Trauma or injury can affect the inside of the tooth and cause it to darken over time.
Blood breakdown products trapped inside the tooth can contribute to internal discoloration.
Certain medications or materials used during earlier dental work may cause the tooth to darken from within.
If you have a discolored tooth that hasn't responded to external whitening, contact our office to find out if internal bleaching may be right for you.

Your endodontist will examine the discolored tooth to determine whether internal bleaching is an appropriate treatment.
The tooth is carefully prepared, and the area is sealed to protect the surrounding structure before the bleaching agent is placed.
A bleaching agent is placed inside the tooth to begin lightening the internal discoloration.
The tooth is monitored to track the progress of the lightening, and the process may be repeated if needed to reach the desired result.
Once the desired shade is achieved, the tooth is sealed and restored to protect it going forward.


A tooth can darken due to a previous root canal treatment, trauma or injury, or blood breakdown products trapped inside the tooth over time.
Internal bleaching is a conservative, well-established procedure when performed by a trained specialist. It's designed to lighten discoloration while preserving the tooth's structure.
Results vary depending on the severity of the discoloration and the individual tooth. Your endodontist can give you a better idea of what to expect after evaluating your specific case.
Results can vary from patient to patient. Your endodontist can discuss what to expect for your specific situation during your evaluation.
Internal bleaching is typically a comfortable procedure since it's performed on a tooth that has already had root canal treatment and no longer has an active nerve.
No. External teeth whitening treats the outer surface of the tooth, while internal bleaching addresses discoloration coming from inside the tooth, which external whitening cannot correct.
If you have a discolored tooth that hasn't responded to external whitening, contact Sienna Endodontics today to find out if internal bleaching is right for you.
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