Single visit procedure for root canal treatment and bleaching of a discolored tooth: a case report

Aim. Root canal treatment and bleaching of a discolored tooth is one of the most commonly used procedures in contemporary endodontics and restorative dentistry. A case of a discolored tooth in a maxillary left incisor in an 38 year old woman patient is reported. Methods. The patient came to our attention claiming the presence of a discolored tooth, requiring the immediate possibility of bleaching. Radiograph examination showed an incorrect endodontic treatment and the presence of a separated fragment of an endodontic instrument. The tooth was retreated and the fragment was removed with the use of ultrasonic instruments, the root canal was then shaped and irrigated copiously with 5% NaOCl and EDTA 17%, then a canal obturation was performed with warm gutta-percha. A power bleaching gel 38% Hydrogen peroxide was then used with a chemically activation for 30 minutes, and the tooth was immediately restored with a fiber post. Results. The clinical and radiographic examination at 4-6-12 -24 months showed a good root filling and a good margin seal of the restoration, and the color of the restoration was well integrated with the rest of the tooth. Conclusions. Endodontic retreatment, immediate bleaching, and fiber post cementation might be a viable alternative to conventional treatments.