Background: The creation of glide path reduces the risk of instrument breakage.Glide path is created before using NiTi rotary instrumentation Aim: This study compared the changes in the root canal anatomy after creation of glide path using Path Files (PF) and V Glide Path 2 (VGP2) using Cone Adjustable Height Desk Beam Computed Tomography (CBCT).Materials and Methods: Hundred extracted mandibular first molars with curved mesial roots, curvature angles ranging within 20-30 degrees were assigned into two groups (n = 50 each).Glide path was prepared using PF (Group I) and VGP2 (Group II).
CBCT images were obtained before and after instrumentation.The technical outcomes were compared at 0, 1, 2, 3, 5 and 7mm intervals.The data was analyzed using t-test and Chi-square test.Result: There was a statistical difference between the root canal curvatures and working time between the two groups (p 0.
05).The changes in the volume were statistically significant only at 2mm interval (p 0.05).Conclusion: Within the limits of Vitamin C this study the rotary Nickel Titanium Path Files appeared to be suitable instruments for safe and easy creation of glide path.