Comparación de la planificación digital en el diseño de endoguías para la localización de conductos calcificados usando tomografía de volumen completo versus tomografía de alta resolución de volumen parcial

Abstract

Introduction: digital planning in endodontics has improved the localization of calcified root canals using cone-beam computed tomography (CBCT). There are two main modalities: full-volume tomography (A) and high-resolution partial-volume tomography (B). Objective: this study compares the accuracy of both techniques in identifying root structures. Methods: a comparative study was conducted on four patients with root calcifications, obtaining a total of 288 measurements (72 per patient). Discrepancies in millimeters and centimeters were analyzed at the left, central, and right edges of the bur at different angles. Data was processed using Blue Sky Plan®, applying descriptive and comparative statistical analyses (ANOVA, correlations). Results: The patient with the lowest discrepancy was No. 1 (0.22 mm), while the one with the highest variability was No. 3 (0.44 mm). Tomography B showed its highest discrepancy in this patient (0.64 mm) and a total accumulation of 22.9 cm, with the greatest difference at the left edge at 150° and 180° (1.20 mm). Overall, tomography A had the lowest global discrepancy (0.26 mm), whereas tomography B exhibited greater variability (0.37 mm). The overall discrepancy average for both techniques was 0.32 mm, with a total accumulation of 90.8 cm. Conclusion: findings indicate that full-volume tomography (A) is the most stable and precise, while high-resolution partial-volume tomography (B) presents greater variability in certain anatomical regions. The choice of technique should consider measurement stability and the required accuracy for endodontic planning.