Internal Tooth Bleaching in Dentistry

Watch Dental Video about Internal Tooth Bleaching

Internal bleaching means that a discolored tooth is bleached from the inside.

Due to an incorrect root canal treatment, a tooth may become severely discolored. Without the use of a cofferdam, bacteria, blood, and saliva components enter the tooth canal during the root canal treatment. Bacteria decomposition products will then lead to a dark discoloration of the tooth – more on that in the video "Root Canal Treatment".

The objective of an internal bleaching lies in the removal of the tooth discolorations without sacrificing any of the hard tooth substance. A special gel is inserted into the interior of the tooth neutralizing the discolorations. However, it’s important to treat the cause as well, e.g., to renew the root canal treatment, because without this renewal, the tooth would eventually darken again sometime after the internal bleaching.

vorher nachher Bild eines internen Zahnbleaching

internal tooth bleaching

Here you see a patient with a dark upper right incisor. Years ago, he took a fall and the root of the tooth was not properly treated. As the years passed, the tooth became discolored. The root canal treatment had already been renewed once in an earlier session; now, the tooth is opened once more from the rear – the same opening as in the root canal treatment. Bleaching gel is inserted in the cavity that is subsequently created; the tooth is then tightly closed and the gel is left in it for 2-3 days. Depending on the discoloration, this procedure may be repeated several times.

As soon as the tooth has achieved the desired color tone, it‘s closed tightly. Depending on which part is discolored, the crown, as well as the root of the tooth, may be brightened.

Alternatives to internal bleaching would be manufacturing a crown, or a veneer – more on that in the videos entitled "Dental Crown" and "Porcelain Veneers". However, these procedures would be far more costly.

Particular risks of internal bleaching are, for example:

  • Pain after treatment due to a leaky root filling and the discharge of the bleaching gel
  • a perforation of the crown/root of the tooth when the tooth is drilled open

Both complications can ultimately lead to the loss of the tooth.

Click here to see the video: Internal Bleaching


This post is also available in: German

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