In vitro study of the internal anatomical variations of permanent lower incisors, using cone beam computed tomography

Authors

  • María José Sarango Suarez
  • Javier Andrés López Espinoza
  • Gabriela Zambrano Manzaba
  • Andrea Bermúdez Velásquez

Keywords:

CBCT, lower central incisors, lower lateral incisors, root canals, Vertucci, internal anatomy

Abstract

Introduction: One of the main reasons leading to failure in endodontic treatment of permanent lower incisors is that some root canals may go unnoticed due to a lack of knowledge about the anatomy of the canals or insufficient investigations of additional canals.

Objective: To analyze the different internal anatomical variations in the lower incisors and compare them with the Vertucci classification.

Methods: A descriptive cross-sectional study was carried out. The sample consisted of 68 extracted lower incisors. The canals were analyzed according to the Vertucci classification, the location of the apical foramen using CBCT as a diagnostic tool.

Results: Of the lower central incisors, the highest prevalence was type I with 95,5%. Of the lower lateral incisors, the highest prevalence was type I with 85,7%. It was observed that in the lower central incisors (86,4%) and lateral incisors (5,7%) the highest prevalence was a foramen in a central position. It was recorded that the periapical radiographs of the two groups of central incisors (86%) and lateral incisors (93%) coincided with that of the CBTC.

Conclusion: Three types of canals were observed, according to Vertucci I, II, and III. Both in the lower central and lateral incisors the most prevalent was type I. The location of the apical foramen in the lower central and lateral incisors is more prevalent in the central position. The periapical radiographs obtained from each piece have a high coincidence with the CBTC

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Published

2025-03-11

How to Cite

1.
Sarango Suarez MJ, López Espinoza JA, Zambrano Manzaba G, Bermúdez Velásquez A. In vitro study of the internal anatomical variations of permanent lower incisors, using cone beam computed tomography. Rev Cubana Inv Bioméd [Internet]. 2025 Mar. 11 [cited 2025 Jul. 30];44. Available from: https://revibiomedica.sld.cu/index.php/ibi/article/view/3770

Issue

Section

ARTÍCULOS ORIGINALES