Use of heat treated manual NiTi files in teeth with marked curves: case report

V08N03 | 2018 | Case Report | Pages 75 to 81

Francisca Lívia Parente Viana, Amanda Mourão Ley, Suyane Maria Carvalho de Vasconcelos, Bruno Carvalho de Vasconcelos

Endodontics, tooth abnormalities, Root Canal Therapy, Alloys

The present paper aims to describe the endodontic treatment of a tooth with marked root dilaceration using manual instruments manufactured in thermally treated NiTi. Patient F.S.L., male, 14 years, with a surgically treated palatal cleft, was referred for endodontic treatment of the left superior lateral incisor tooth (22) for prosthetic reasons. Clinical examination revealed a defect in the formation of the crown of the tooth in question. The initial radiographic exam revealed presence of marked S-shaped root dilaceration. Under local anesthesia and absolute isolation, coronary access and initial exploration of the canal with C-Pilot instrument #10 were performed, followed by the use of Flexofile #15 pre- curved until it reaches the actual tooth length (CRD). Due to the curvatures, the manual instruments of the ProdesignM system were chosen, finishing the preparation with instrument #35/.05. Due to peculiarities related to absolute isolation, the use of chlorhexidine digluconate 2.0% was associated with saline solution at 0.9% and CRD was used as the working length. After the difficulties of the preparation, the conduit was obturated 1.0 mm below the CRD by the single cone technique associated with the cement AH Plus; At the end the coronary access was sealed with glass ionomer cement. The final radiograph revealed the preservation of the initial anatomy. In view of the above, it can be concluded that the Prodesign M system was effective in the modeling of the curved channel, respecting the original anatomy of the canal even in the presence of sharp curvatures, justifying its use.

Viana FLP, Ley AM, Vasconcelos SMC, Vasconcelos BC. Use of heat treated manual NiTi files in teeth with marked curves: case report. Dental Press Endod. 2018 Sept-Dec;8(3):75-81. DOI: