sodium-hypochlorite and Bone-Diseases--Infectious

Here, we report the diagnosis and treatment of an extraoral cutaneous sinus tract originating in a mandibular second molar with a C-shaped root canal system. The patient was referred to our department by a dermatologist after a series of unsuccessful treatments, including antibiotics. Diffuse radiolucency on a preoperative radiograph revealed that earlier root canal treatment had been only partially successful. Consequently, we performed retreatment of the root canal comprising removal of the former restoration and gutta-percha, cleaning and shaping, and passive irrigation with sodium hypochlorite. The patient responded well, and the cutaneous lesion completely resolved uneventfully within 1 month postoperatively. Preoperative recognition and thorough knowledge of the root canal anatomy and conventional methods of obturation are necessary in performing successful endodontic treatment.

Topics: Alveolar Process; Anatomic Variation; Bone Diseases, Infectious; Chronic Periodontitis; Cutaneous Fistula; Dental Fistula; Diagnosis, Differential; Gutta-Percha; Humans; Iatrogenic Disease; Male; Medical Errors; Molar; Periapical Abscess; Radiography, Dental; Retreatment; Root Canal Irrigants; Root Canal Therapy; Sodium Hypochlorite; Tooth Root; Treatment Failure; Young Adult