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Influence of anatomical features in the endodontic treatment planning of maxillary anterior teeth

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  • Jardel Francisco Mazzi-Chaves, Universidade de Sao Paulo
  • ,
  • Graziela Bianchi Leoni, Universidade de Ribeirao Preto
  • ,
  • Juliana Santos Oliveira, Universidade de Ribeirao Preto
  • ,
  • Yara Terezinha Corrêa Silva-Sousa, Universidade de Ribeirao Preto
  • ,
  • Ruben Pauwels
  • Manoel Damião Sousa-Neto, Universidade de Sao Paulo

This study evaluate the maxillary anterior teeth anatomy by micro-computed tomography (μCT), about relevant characteristic for endodontic treatment planning. Fifty maxillary central incisors (MCI), lateral incisors (MLI) and maxillary canines (MC) were scanned using a μCT device. Two and three-dimensional parameters at 1 to 5mm distance to the apical foramen, external anatomic characteristics of the teeth and qualitative analysis of the internal anatomy was performed. The roundness and form factor values revealed a circular canal in the apical third in the MCI and MC, whereas MLI showed flattening in the apical third. The linear regression test indicated a progressive increase in the major/minor diameters in the five mm assessed (p < 0.001). The 3D analysis revealed the greatest volume and surface area in MC. The SMI showed a cylindrical geometry of root canals. All teeth presented Vertucci's type I root canal configuration. A mild curvature was prevalent in the MCI (45%) and a moderate one in the MLI (50%) and MC (50%). Palatal shoulder volume was smaller in the MLI (11.46 ± 3.09) than in the MCI (14.15 ± 3.85) and MC (13.95 ± 2.55). The most common exit of main apical foramen was in a central (22%), distolingual (30%) and mesiobuccal position (28%) for MCI, MLI and MC, respectively. Radicular grooves were observed in 2% of MCI and 4% of MLI. Two and three-dimensional data obtained by μCT allowed to observe morphological characteristics of internal/external anatomy of the maxillary anterior teeth. These characteristics may affect the endodontic treatment planning.

Original languageEnglish
Article numbere005
JournalBrazilian Oral Research
Number of pages15
Publication statusPublished - 2022

    Research areas

  • Cuspid, Dental Pulp Cavity/diagnostic imaging, Humans, Tooth Apex, Tooth Root, X-Ray Microtomography

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