PROCÉDÉ D'AMÉLIORATION DE LA DUCTILITÉ D'UNE AIGUILLE POUR DISPOSITIFS DE TRAITEMENT DE CANAL RADICULAIRE ET PROCÉDÉ DE FABRICATION D'UNE AIGUILLE POUR DISPOSITIFS DE TRAITEMENT DE CANAL RADICULAIRE COMPRENANT LE PROCÉDÉ D'AMÉLIORATION DE LA DUCTILITÉ D'UNE AIGUILLE POUR DISPOSITIFS DE TRAITEMENT DE CANAL RADICULAIRE
The present disclosure relates to a method of manufacturing a needle for root canal treatment devices having improved ductility. The method of the present disclosure includes a step of manufacturing a hollow needle body in a desired shape using an alloy or a single metal, a step of filling the hollow of the needle body with a packing member, a step of heat-treating the needle body at a predetermined temperature under an inert gas atmosphere after the needle body is placed in a vacuum chamber, and a step of cooling and hardening the needle body.
