The spreders have an excellent ability to plugging the gutta percha and are a meant for lateral condensation obturation technique.
 

 

Spreaders made of nickel titanium or steel and have different sizes correspond to standard K-Files and Reamers.

Also it has a pointed tip to aid in lateral condensation.

Lateral condensation technique:

1. Select the master cone corresponding to the last file used and try it in a humid environment (2.6% NaOCl). Dry the canal using paper points and coat the canal walls with endodontic sealer.

2. Insert the master cone corresponding to the last file used for canal preparation into the canal until WL or WL -0.5 mm is reached.

3. Condense laterally using the biggest Revo Spreader (N°20, N°25 or N°30) allowing to reach WL -2 mm.

4. Then insert an accessory cone corresponding to the Spreader until the level of the latter is reached and condense laterally. Repeat this operation (insertion and condensation of an accessory cone) until the endodontic space is completely filled.

5. Eliminate the excess gutta percha in the pulp chamber with the heated part of a plugger for vertical condensation. Maintain the pressure on the remaining gutta percha with the flat and cold part of the plugger.