Root canal obturation with gutta-percha: a scanning electron microscope comparison of vertical compaction and automated thermatic condensation

This study was designed to compare root canal obturation using the warm gutta-percha technique (Schilder) with the automated thermatic condensation (McSpadden). Analysis of the results showed that under comparable situations both techniques produced good clinical radiographic results. In contrast, SEM analysis showed various defects in the condensed gutta-percha core, which could be linked to the method of gutta-percha condensation. Generally, automated thermatic condensation displayed more dynamic deformations and sealer pool formations compared with the warm gutta-percha technique. Based on the results of this project, both techniques offer specific advantages and limitations in the application of root canal filling procedures.

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