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

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

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 old, with surgically treated palatal cleft was referred to endodontic treatment of the left maxillary lateral incisor (#22) for prosthetic reasons. Clinical examination revealed a defect in the formation of the crown of the tooth. Initial radiographic examination 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 pre- curved Flexofile #15 until it the actual tooth length (CRD) was reached. Due to the curvatures, manual instruments of the ProdesignM system were chosen, finishing the preparation with instrument #35/.05. Because of peculiarities related to absolute isolation, the use of 2.0% chlorhexidine digluconate was associated with 0.9% saline solution and CRD was used as the working length. After difficulties with preparation, the canal was filled 1.0 mm below the CRD by the single cone technique associated with cement AH Plus. At the end, coronary access was sealed with glass ionomer cement. Final radiograph revealed preservation of initial anatomy. In view of the above, it can be concluded that Prodesign M system was effective in modeling the curved canal, respecting its original anatomy even in the presence of sharp curvatures, thus justifying its use.

Keywords: Endodontics. Tooth abnormalities. Root canal therapy. Alloys.

How to cite: 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: https://doi.org/10.14436/2358-2545.8.3.075-081.cre

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