Internal Bleaching (Walking bleach) The walking bleach technique is used to whiten teeth that have had root canal treatments. It involves bleaching the tooth from the inside of the tooth. Root canal treatments may discolour teeth due to the materials used to fill the root canal, discolouration breakdown of blood in the root canal, and medications used in the root canal during the treatment, to name but a few. It is very important to have a scale and clean before starting the bleaching treatment.
.png)
