Basics of Root Canal Treatment (Endodontic Course)

Access the upper first molar with a perpendicular endo access bur, then de-roof and widen for straight access to canal orifices using the endo Z bur and DG 16 explorer.

Learn how to prepare the access cavity for a lower second molar with four cusps and two roots, starting from the central groove to locate up to four canals.

Demonstrates the step back technique with size 25 file to full working length (21 mm) using balance force, highlighting careful progression and thorough irrigation with sodium hypochlorite.

Advance a size 30 file to 21 mm using the step back technique with 60-degree clockwise and anticlockwise motions to widen the canal, irrigating with sodium hypochlorite and EDTA.

Describe sodium hypochlorite irrigation and raising a size 35 file to the full working length of 21 mm, then apply the balance force technique with steady motion in the canal.

Applies the step back technique with a size 55 file to 18 mm, irrigates with saline and sodium hypochlorite, then recapitulates with size 40 and EDTA to smooth canal walls.

Perform canal obturation after shaping and cleaning by selecting a core material and sealer to produce a uniform, radiopaque, void-free fill from apical to coronal.

Dry with paper points size 40; coat with sealer; then lateral-compact with a finger spreader 2 mm shorter than the working length for 60 seconds; place accessory point.

Part 3 demonstrates lateral compaction of gutta-percha with a finger spreader and accessory points, using sizes 35 then 25, back-and-forth movement, same-side pressure, with sealer to avoid voids.

Insert filling material into the canal and keep adding through accessory canals until it is completely full. Stop when it reaches the desired length, indicating the canal is filled.