A Systematic Literature Review and Case Report of Bilateral Two-Rooted Mandibular Deciduous Canines and Their Usefulness in Forensic Identification

A systematic review of the literature in PubMed was made by combining the terms “cuspid” and “tooth root” as MeSH health descriptors, combined with the Boolean operators “+” and “&” to obtain describing publications about two roots canines in order to sustain, on scientific evidence, the application of dental anthropology (dental morphological variations) in forensic science (forensic processes of dental identification). This literature review identified reports that describe the presence of two-rooted canines and the number and distribution of root canals for diagnostic and therapeutic purposes; and one report in which description was performed for forensic identification purposes. The descriptions corresponded to different cases of permanent maxillary canines with left unilateral expression, permanent mandibular canines with right unilateral expression, left unilateral expression with bilateral expression. There were no reports of deciduous dentition. Likewise, a case report in which skeletonized human remains were identified by the presence of bilateral two-root mandibular deciduous canines is described.