Hedstroem: Recommended use

Hedstroem can be used both in straight canals and curved canals. The hedstroem prepares dentin effectively only when using a filing, up and down motion. In curved canals, files (sizes 20/25 and bigger) must be pre-curved to correspond to the shape of the curve. H-files must always fit loosely in the canal to avoid risk for fracture. This is easily obtained by selecting a smaller H-file after each rotating instrument. Small sizes up to #25 can be used down into full preparation length while bigger sizes are often used 1 - 3 mm short.

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