MA57 Nickel Titanium Root Canal Spreader MA57 Nickel Titanium Root Canal Spreader RCSMA57NT .20 mm Nickel Titanium Root Canal Spreader provides extra flexibility and memory; especially useful for complex treatment sites. Where to Buy x Category Dealer PartnersSales RepresentativeStrategic MarketsSchools RepresentativeAccutron™ Equipment Sales Zip Code Find RepresentativeReset Select a category, input a zip code and click on Find Representative, or explore the complete list here.