European Journal of Molecular & Clinical Medicine

Exploring the root canal is an important step in the treatment process because it is the first time the dentist or doctor sees the anatomy of the canal.
“Endodontic glide path means that there is a smooth path from the opening of the canal to the tip of the root” (West J., 2010). “Glide path preparation is the first step in chemo-mechanical preparation. It is a crucial step for figuring out the root canal anatomy and making sure the entrance into the apical part of the canal is smooth. The glide path can be made by hand or with nickel-titanium (NiTi) rotary files with a small tip diameter and taper” (Peter OA, Peter Cl., 2010).   
Due to their tiny diameter, lack of rigidity, and presence of calcifications and other aberrations in the canal, small canals are difficult to navigate. These files frequently buckle or develop plastic deformation when subjected to vertical stresses

Cleaning and shaping of the root canal space is the primary objective of endodontic therapy. Its purpose is to prepare the canal space in order to improve disinfection with the use of irrigants as part of chemo mechanical preparation. Infiltration and subsequent infection of the root canal system by microorganisms and their byproducts is the primary etiology of endodontic pathosis. Chemo-mechanical preparation aims to remove microorganisms, remaining pulp tissue and dentin debris from the root canal system.
The main objective of shaping is to maintain or develop a continuously tapering funnel from the canal orifice to the apex; however the complex canal anatomy causes instrumentation challenges, which may prevent adequate disinfection of the root canal system, or cause procedural errors such as instrument separation, transportation, ledges or perforations. The present study was set out to determine canal centering ability, transportation and curvature using 5^th generation NiTi rotary systems as mentioned above.