Lingual Ligature Director, .018" Lingual Ligature Director, .018" SNLD1 Uniquely designed for lingual treatment, lingual Ligature Director, .018" (.45mm). 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.