CONTAMINATION OF GUTTA-PERCHA CONES IN CLINICAL USE BY ENDODONTIC SPECIALISTS AND GENERAL PRACTITIONERS
14) Placement of a master gutta-percha cone
in the apical part of the root canal prior to injection has been suggested to prevent overfilling and apical extrusion.
In the sagittal sections, the oxide of zinc eugenol-based obturation cement can be seen between the gutta-percha cones
without significant changes; and the gutta-percha, melted by the heat, seeps through the apical hole and keeps its original color (figures.
Flow of various brands of gutta-percha cones
under in vitro thermomechanical compaction.
25) the use of a spreader and accessory gutta-percha cones
in the lateral compaction technique created lateral and apical cement dislocation forces that filled the root canal irregularities and dentin tubules differently from a single cone technique.
Evaluation of the thermoplasticity of different gutta-percha cones
In vitro study on the softening of gutta-percha cones
in endodontic retreatment.
The root canals were obturated with gutta-percha cones
by the lateral condensation technique with Sealer-26 resin sealer (Dentsply Caulk, Milford, USA).
Lateral condensation was then completed by the placement of accessory gutta-percha cones
with endodontic finger-spreaders (Dentsply Maillefer) until the spreader could not enter more than 3 mm.
According to the material features it is presumed that the time necessary for its plasticization should be different than that observed for conventional gutta-percha cones
, influencing the filling quality.
3] (1990) compared the radiopacity of gutta-percha cones
to an aluminum stepwedge and observed a mean radiopacity of 7.