Dental The periapical radiograph of RCT treated tooth shows wiggly apical seal of master cone is due to: A Apical perforation of master cone B Excess cement in apical region C Obstruction of master cone at apical third D Short master cone in apical third 💡 Explanation The periapical radiograph of RCT treated tooth shows wiggly apical seal of master cone is due to: ✓ Correct Answer: D. Short master cone in apical third