title: Bleaching of root canal treated teeth and cervical external resorption: review of the literature.
mesh_terms: D006801:Humans; D012390:Root Canal Therapy / Q000009:adverse effects*; D014073:Tooth Bleaching / Q000009:adverse effects*; D014075:Tooth Discoloration / Q000209:etiology / Q000628:therapy*; D014091:Tooth Resorption / Q000209:etiology*