Methods: Sixty freshly extracted mandibular molars were used for the study. A muffle-block was constructed as given by Aviad et al. ^[8] Photographs were taken of all three cross-sections of each tooth using a DSLR Camera (Nikon Digital, Tokyo, Japan) at a fixed position. The specimens were randomly divided into the following three groups: Group l: Canals prepared using F6 Sky Taper file. Group 2: Canals prepared using Path Glider size 015 file before F6 Sky Taper file. Group 3: Canals prepared using Path Glider size 015 and size 020 files before F6 Sky Taper file. Results: In our study we found that the creation of rotary glide path had no influence on centering ability of F6 Sky Taper rotary file.

Conclusion: It can be concluded that the creation of glide path had no influence on the centering ability and increased the total time involved in preparation of curved canals with F6 Sky Taper rotary single file systems.