Bleaching of Discoloured Teeth

Internal bleaching is performed on teeth that have undergone root canal treatment and are discoloured because of the previously used root filling material. It could also be performed on teeth that are non-vital and discoloured and in need for endodontic treatment. Unlike external bleaching, which whitens the teeth from the outside in, internal bleaching whitens teeth from the inside out. Bleaching the tooth internally involves using an oxidising agent that is placed inside the tooth crown or pulp chamber after satisfactorily sealing the root canal space. The oxidising agent is sealed within the tooth over a period of some days and replaced as needed until the required shade or colour is achieved.