Evaluation of Crack Formation and Propagation with Ultrasonic Root-End Preparation and Obturation Using a Digital Microscope and Optical Coherence Tomography

Table 1

Overall sensitivity, specificity, positive predictive value (PPV), and negative predictive value (NPV) of OCT and DM compared to micro-CT in detecting crack formation after two months of root-end resection and filling.

	Sensitivity	Specificity	PPV	NPV
OCT	0.50	0.55	0.36	0.69
DM	1.00	0.35	0.43	1.00