Resumo

DUQUE JUNIOR, Douglas de Oliveira et al. Wave One system: comparison between diameter of the root canal shaping and its gutta-percha cone. Rev. Assoc. Paul. Cir. Dent. [online]. 2013, vol.67, n.2, pp. 150-153. ISSN 0004-5276.

The fit of gutta-percha cone on the root canal shaping is important to the step obturation. Therefore, the aim of this study was to compare the diameter of the shaping produced by Wave One Primary reciprocating single-file (Dentsply Maillefer, Ballaigues, VD, Switzerland) and the Wave One Primary gutta-percha points. Sixteen mesial root canals of mandibular molars were prepared using Wave One Primary reciprocating single-file, and then they were filled with acrylic resin. After decalcification of teeth, the resin was removed and analyzed using perfilograph (Werth GmbH, Giessen, HE, Germany). Sixteen Wave One Primary gutta-percha points were also analyzed. The diameter of third coronal, medium and apical of the shaping (resin) and gutta-percha points were compared using Mann Whitney U test (p=0.05). The data showed significant difference in all thirds with shaping larger than gutta-percha points. It can conclude that the diameter of shaping produced by Wave One Primary reciprocating single-file does not match the diameter of its gutta-percha point, the shaping is larger in all thirds.

Palavras-chave : Endodontics; Root Canal Preparation; Gutta-Percha.