IP Indian Journal of Conservative and Endodontics 2020;5(3):144–146 Content available at: https://www.ipinnovative.com/open-access-journals IP Indian Journal of Conservative and Endodontics Journal homepage: www.ipinnovative.com Case Report The treatment strategy of an oblique complicated crown-root fracture: A case report Nazia Ali 1, *, Ipsita Pathak 1 , Vipul Srivastava 1 , Ayush Razdan Singh 1 1 Dept. of Conservative Dentistry & Endodontics, Saraswati Dental College, Lucknow, Uttar Pradesh, India ARTICLE INFO Article history: Received 25-08-2020 Accepted 03-09-2020 Available online 07-09-2020 Keywords: Crownroot fracture Fiber post Reattachment Monoblock ABSTRACT A crown-root fracture is defined as a fracture which involve enamel; dentin and root cementum with or without the involvement of pulp. If pulp is involved it is known as complicated crown-root fracture. It is usually oblique in nature involving both crown and root. In this case report we have a case of 20 year old female with oblique complicated crown-root fracture and an irreversible pulpitis of maxillary left canine. In this case endodontic therapy followed by reattachment of fractured fragment with a prefabricated fiber post followed by PFM crown was the treatment plan for the patient and patient responded successfully to treatment.. © 2020 Published by Innovative Publication. This is an open access article under the CC BY-NC license (https://creativecommons.org/licenses/by-nc/4.0/) 1. Introduction The most commonly involved teeth in dental trauma are maxillary incisors. During dental trauma sometimes a complicated crown-root fracture occurs which is characterized by a fracture that involve enamel, dentin, cementum with pulpal involvement. Crown-root fractures extending apically towards both the gingival margin and the alveolar crest pose a great challenge. 1–3 Gingivectomy, osteotomy, orthodontic extrusion, surgical extrusion, intentional replantation or extraction are various methods for the management of complicated crown-root frcture. 4 Whenever there is no or minimal invasion of the biological width and fragment of tooth is intact, reattachment of fractured fragment of tooth by fiber post is most favourable treatment procedure. 4–6 2. Case Report A 20 year-old female patient presented at to the Department of Conservative dentistry and endodontics of Saraswati dental college and hospitals lucknow, and complains of pain * Corresponding author. E-mail address: naziaa258@gmail.com (N. Ali). in maxillary left canine. The patient had a history of accident 2 days ago. There was nothing significant in past medical history. The soft tissue, temporomandibular joint and osseous structures did not show any injury on initial clinical examination Left maxillary canine was tender on percussion and slightly mobile but not displaced on intraoral examination. Cold test was used to check the pulp vitality of maxillary left canine and showed intense pain response. Intraoral periapical radiographic examination revealed an oblique crown root fracture in maxillary left canine by taking radiograph from different angles., A diagnosis of oblique crown-root fracture and irreversible pulpitis in maxillary left canine was made based on the clinical and radiographic examination. Treatment plan selected for patient was root canal treatment followed by reattachment of the crowns by using fiber-reinforced post followed by PFM crown. Root canal treatment was performed in single appointment under local anesthesia. The pulp was extirpated and the root canal was cleaned, shaped and filled. Post space was prepared and fiber posts of corresponding size was positioned in the canal and its fit was checked by radiograph. Tooth preparation was done in next appointment https://doi.org/10.18231/j.ijce.2020.034 2581-9534/© 2020 Innovative Publication, All rights reserved. 144