Dr. Zainab | Dentist 🦷 on Instagram: "🦷 1. K-File Use: For cleaning and shaping the root canal. Design: Twisted from a square or triangular stainless-steel wire. Motion: Watch-winding or push–pull filing motion. Function: Used for initial canal negotiation and smoothening of canal walls. Note: It’s less aggressive and gives good tactile control. 🦷 2. H-File (Hedström File) Design: Made by machining a round wire into a spiral with sharp edges. Use: For enlarging canals and removing dentin Moti