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A review of literature reveals that the anatomy of maxillary central incisors is single-rooted teeth with a single canal in 100% of cases. The prevalence of maxillary central incisors with 2 roots is extremely rare and has never been investigated; only a few clinical case reports have been published ( Levin et al. 2015 ).  Click here to download an editable Power Point file with all pictures and video Below there is a similar case report from Levin et al. published in the Journal of Endodontics This article can be read in full HERE

Click here to download an editable Power Point file with all pictures and the movie Definition Radicular grooves (RGs) are a developmental groove in the root of teeth that may continue apically down the root. Grooves run from the beginning of the cemento-enamel junction (CEJ) and along the root surface to the apex. In most cases, the course of the grooves is straight. Localization Radicular grooves are often located on the palatal aspect of maxillary lateral incisors, and rarely on the labial root surface of the central incisors. RG were also reported in premolars and molars. According to their localization they are differentiated as distal, mesial and central patterns, with the distal position dominating, as it occurs in approximately 70% of cases. In the case of a distal localization, pathosis is often reported. The facial surface can be affected by the defect, albeit less frequently and with a predilection for the central maxillary incisors; however it is then properly termed a faci...

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