3-0 Black Silk Suture 18", C-9 Needle 23 mm, 1/2 Circle Reverse Cut 3-0 Black Silk Suture 18", C-9 Needle 23 mm, 1/2 Circle Reverse Cut PSN632S Perma Sharp™ Sutures are designed for efficient and reliable soft tissue closure for all types of dental procedures. 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.