31/12/2022
RCT for a lower 2nd premolar with a deep apical split (KING of variations)
It’s very important to analyze the pre-operative radiograph very well, specially in tricky lower premolars and it preferred to have a view on CBCT
Steps: MANUAL GAME
1. coronal flaring
2. Scouting with a pre-bent #10 K file oriented lingually to catch the lingual canal entrance.
3. Shaping the buccal (wider) canal first.
4. Re-entering the lingual with #10 K file and creating a smooth glide path till #25 K file.
5. Using a pre-curved rotary files manually inserted into the lingual canal then attaching the rotary motor to them to accurately enter and shape the canal.
6. GP size 25/4 L, 30/4