By Barry L. Musikant, DMD
In determining the best way to shape canals, we should consider the use of rotating NiTi as one general method of instrumentation with many variations in design and utilization to choose from. To limit the methodology of instrumentation to systems that incorporate either continuous or interrupted rotation needlessly narrows the possibilities and sheds no light on the abilities of other forms of canal instrumentation.
Let’s start off with a discussion of both continuous and interrupted rotating NiTi systems in shaping canals, but let us not limit the discussion to just rotating NiTi systems (Fig 1).
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