An endodontic reamer and a method of manufacturing endodontic reamers and files

摘要

The present application relates to a dental instrument having an elongated flexible cylindrical shaft, the shaft having a longitudinal axis and a radius R, the shaft having a near end and removed end; and a working portion, extending beyond removed end of the shaft and including a longitudinal axis coincident with the longitudinal axis of the elongated shaft, the working portion including at least one projecting section, each projecting section extending beyond a radius R and defining an apex, the projecting section including a leading portion extending forward of the apex and making an angle with the longitudinal axis of less than 90° and a trailing edge portion, the trailing edge portion extending rearward of the apex and making an angle of less than 90° with longitudinal axis, the projecting section having thickness T at the apex. The application further relates to a process for manufacturing the dental instrument.