HomeEndodontics Broken instrument during RCT, best prognosis if broken publisher :NIL NAM -March 20, 2017 Broken instrument during RCT, best prognosis if broken at: a. Apical 1/3. *** b. Middle 2/3. c. Cervical 3/3. Labels Endodontics Facebook Twitter Share:Broken instrument during RCT, best prognosis if broken Facebook Twitter WhatsApp Pinterest LinkedIn Reddit Tumblr Telegram Email