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Case Reports in Dentistry
Volume 2016, Article ID 8597872, 4 pages
Case Report

Concrescence: Cone-Beam Computed Tomography Imaging Perspective

1Department of Oral and Maxillofacial Medicine and Diagnostic Sciences, CWRU School of Dental Medicine, Cleveland, OH, USA
2Oral and Maxillofacial Surgery, Western Reserve OMS, Middleburg Heights, OH, USA

Received 30 July 2016; Accepted 14 September 2016

Academic Editor: Jiiang H. Jeng

Copyright © 2016 Ali Zakir Syed et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Concrescence is a form of twinning, formed by the confluence of cementum of two teeth at the root level. The diagnosis of concrescence has largely relied on the conventional 2D imaging. The 2D imaging has inherent limitations such as distortion and superimposition. Cone-Beam CT eliminates these limitations. The aim of this article was to describe a case of dental abnormality using Cone-Beam CT imaging modality. Volumetric data demonstrated confluence of left mandibular third molar with a paramolar, a supernumerary tooth. To our knowledge, this is the second case in the dental literature reported demonstrating the use of Cone-Beam CT in the diagnosis of concrescence.