Osung Composite Scalpel Handle, SHCS2 Product Highlights: Blade Replacable designed to improve safety and convenience from the old way as inserting the blade into the lidocaine ampoule Safety - Protect your hands from the blade Convenience - Easy blade fastening and save time Hygienic - Autoclave sterilizable Semi-permanent use is possible only by replacing the blade When the adjacent tooth surface of the anterior or premolars is laminated with composite resin, no matter how well the metal matrix band or Mylar strip is sealed, the resin may overflow, or the overhanging margin may form on the gingival margin. At the end of the photopolymerization process, after finishing and polishing with a high speed bur, mostly adjust the lowermost part using the blade of #12 scalpel comes out of the composite scalpel handle and form the gingival margin and embrasure without touching the gingival as much as possible.