Endodontic instrument for drilling the root canals of a tooth

摘要: A method of forming a dental tool or instrument having memorized shape. The comprises selecting nitinol wire an initial transition temperature below room temperature; grinding the to form so as have shank, located adjacent first end, and working area, with at least one cutting edge, opposite second leading end; molding area into molded shape protrusion formed therein; heating both: a) alter final temperature, b) memorize including that will automatically return when above