Concrescence: an enigma of root anomaly

Concrescence is a rare developmental dental disorder where the roots of the adjacent teeth are united by cementum. It occurs commonly in maxillary molar region. It may lead to periodontal tissue destruction through the loss of gingival architecture. Unpredicted extraction of an adjacent tooth, fracture of the maxillary tuberosity or floor of the maxillary sinus and oral-antral communication are reported at the time of extraction of concrescent tooth. Therefore, a correct and early diagnosis prior to surgical intervention is important to ensure that patients can make an informed decision about their treatment and to reduce the potential for dento-legal action against the responsible clinician.