Hot modified technique with a new biosealer

The long-term success of endodontic treatment is basically based on adequate 3-D cleaning of the endodontic space after root canal shaping, followed by complete 3-D obturation of the complex root canal system. The endodontic space is composed of areas that are easily accessible to hand and rotary instruments (the main canals) and, as confirmed by many clinical and histological studies, some spaces that are difficult to access or even inaccessible (isthmuses, loops, lateral canals, ramifications, deltas and dentinal tubules; Fig. 1). For that reason, mechanical shaping is not able to reach all areas of the complex root canal system, regardless of the technique used, leaving parts of the root canals untreated. Therefore, it is necessary to carry out endodontic biochemical cleaning (for the accessible and inaccessible areas). Once these areas have been cleaned, they can be filled and obturated with gutta-percha and sealer during the obturation phase.