Incidência do canal lingual em incisivos inferiores: uma revisão de literatura

Abstract

Introduction: Lack of anatomical knowledge of root canals can harm endodontic treatment. Cone Beam Computed Tomography (CBCT) is crucial for analyzing the morphology of the canals. Objective: To review the literature on the number and configuration of lower incisor canals, using the Vertucci classification, discussing the clinical considerations of this morphology. Methodology: Studies on permanent human lower incisors evaluated by CBCT were included, excluding review articles. The descriptors “Mandibular incisor”, “Root canal” and “Cone-Beam Computed Tomography” were used in the PubMed, Embase and Lilacs databases on July 16, 2024, without time or language limits. The search identified 145 studies, 26 were selected between 2013 and 2024. Results: Higher incidence of two canals in the lower lateral incisors (76.9%) and lower central incisors (15.4%), with 7.7% not specifying the incisor. Prevalence of Vertucci type 3 canal. Regarding sex, 61.5% of studies indicated no significant difference, 19.2% reported a higher incidence in men and 19.2% in women. Age group was not analyzed. Conclusion: Lower lateral incisors have a higher incidence of two root canals, with Vertucci type 3 configuration predominating, with no significant gender difference. CBCT is essential for identifying anatomical variations, optimizing endodontic treatment.