Management of subgingival root fracture with decoronation and orthodontic extrusion in mandibular dentition: A report of two cases

Incidence of horizontal root fracture in permanent dentition is relatively uncommon with reported incidence being <7%. Treatment and prognosis of such injuries vary with the location of fracture line. More apical the fracture lines more likely the favorable outcome. Treatment includes immobilization for 2-4 weeks and root canal treatment to allay any chance of failure. Subgingival root fracture with possible bacterial contamination and insufficient crown height require multidisciplinary approach for the successful treatment and help patients to retain their natural dentition. In cases of extreme mobility of coronal fragment, endodontic treatment, decoronation, and orthodontic extrusion provides clinicians easy and conservative treatment option to functionally and esthetically rehabilitate the fractured tooth. This case report describes similar treatment plan in the management of subgingival root fracture in two different cases involving mandibular lateral incisor and mandibular premolar.