Glide path has been recommended as a mandatory clinical step to ensure the safe usage of nickel-titanium rotary instruments.
Four pathfinding NiTi rotary instruments were tested in 240 moderately curved molar canals.
Fracture rate and percentage frequency (%) of molars in which the pathfinding instruments reached the full working length were recorded.
ScoutRace performed more efficiently and with less instrument breakage than other systems.
ProDesign was the least efficient, and ProGlider exhibited the most instrument breakage among the tested systems.