@article{Marchiori_Corrêa_Tomazinho_Gabardo_Mattos_Fariniuk_Baratto-Filho_2021, place={Limeira, SP}, title={Influence of different reciprocating systems on the apical extrusion of debris in flat-oval canals}, volume={20}, url={https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8663781}, DOI={10.20396/bjos.v20i00.8663781}, abstractNote={<p>Aim: To evaluate the apical extrusion of debris in flat-oval canals, using three reciprocating systems at two different working lengths (WL), 0 mm and 1 mm from the apical foramen. Methods: Ninety mandibular incisors were randomly divided into three groups based on the systems: WaveOne Gold #25.07 (WOG), ProDesign R #25.06 (PDR), and X1 Blue #25.06 (X1B). Extruded debris were collected and dried in pre-weighed Eppendorf tubes. Three consecutive weighings were performed for each tube, and the mean was calculated. If the assumptions of normality and homogeneity of variance were not met, the Kruskal-Wallis test was used to analyze the amount of extruded debris between groups with the same WL, and the Mann-Whitney U test was used for comparison within groups for each WL. Results: All groups had extruded debris, with higher median values occurring at 1 mm. No significant difference regarding the amount of debris extrusion was observed at 0 mm (p>0.05) and 1 mm (p>0.05) between groups. However, within the groups, at different WL, there was greater extrusion at 1 mm (p<0.05), with PDR differing significantly from the other systems (p<0.05). Conclusion: The extrusion of debris occurred regardless of the group, with higher values at 1 mm. However, using PDR at 1 mm from the apical foramen showed the highest values of extrusion.</p>}, number={00}, journal={Brazilian Journal of Oral Sciences}, author={Marchiori, Monique and Corrêa, Arissa Michelle Yamada and Tomazinho, Flávia Sens Fagundes and Gabardo, Marilisa Carneiro Leão and Mattos, Natanael Henrique Ribeiro and Fariniuk, Luiz Fernando and Baratto-Filho, Flares}, year={2021}, month={Jun.}, pages={e213781} }