Postoperative Pain After Root Canal Obturation With Sealer Containing Prednisolone.

Inclusion Criteria: * Male or female, age \> 18 years old * Patient requiring a primary or a secondary root canal treatment on a single or multi-rooted tooth. * Informed consent signed * Patient with social protection. Exclusion Criteria: * Endodontic treatment on tooth with suspected root perforation, or immature tooth, * Known allergy to corticosteroids, local anesthetics, or any component of the medical devices, * Patient taking anti-pain or anti-inflammatory treatment regularly for another pathology, * Presence of any significant medical finding or significant history such as uncontrolled systemic diseases that may impact the safety, the interpretation of the results and/or the participation of the subject in the study according to the opinion of the investigator, * Participation in another intervnetional clinical trial or subject still within the exclusion period of a previous clinical trial, * Vulnerable subjects referred to in articles L.1121-5 to 8 and L.1122-1-2 of the Public Health Code and article 66 of Regulation (EU) 2017/745 on medical devices are excluded from the investigation (such as known pregnancy or lactation, patients with legal protection).