02378nab a2200253 a 4500003000900000005001700009008004100026100002000067700002000087700002000107245015000127264000900277300001600286520160500302650003301907650001401940650001901954650002201973650001801995773005402013035001502067001000702082040003502089AR-ReUNN20260702004756.0260701s2023    ag |||||||||||||||||spa  1 aElnaghy, Amr M.1 aMandorah, Ayman1 aElsaka, Shaymaa10aEffectiveness of XP-endo Finisher, EndoActivator, and File agitation on debris and smear layer removal in curved root canals: a comparative study 1c2023  a6 páginas  aThe purpose of this study was to assess the efficacy of the XP-endo Finisher (FKG Dentaire SA, La Chaux-de-Fonds, Switzerland) file on debris and smear layer removal in curved root canals in comparison to different irrigation regimens. Seventy-five freshly extracted human mandibular molar teeth with mesial root curved more than 20° were used in this study. The mesial root canals were mechanically prepared using the BT-Race rotary system (FKG Dentaire) and divided into five groups (n = 15) according to the following irrigation techniques: positive control, non-agitated, File agitation, XP-endo Finisher, and EndoActivator (Dentsply Tulsa Dental Specialities, Tulsa, OK, USA). Root canals were split longitudinally and evaluated by scanning electron microscopy. Five-grade scoring system was used to assess the presence of debris and smear layer at the coronal, middle, and apical regions. The XP-endo Finisher and EndoActivator groups revealed significantly lower debris and smear layer scores than the other groups at the coronal, middle, and apical regions (P < 0.05). There was no significant difference between XP-endo Finisher and EndoActivator groups (P > 0.05). The apical region had higher debris and smear layer scores compared with the coronal regions in all groups (P < 0.05), except for the positive control group; there was no significant difference between the three regions of the root canal (P > 0.05). Irrigation of curved root canals using XP-endo Finisher and EndoActivator methods appears to be more effective on debris and smear layer removal than the other tested groups. 4aConductos Radiculares Curvos 4aEscombros 4aCapa de Frotis 4aAcabadora Xp-Endo 4aEndoactivador0 tOdontologyx1618-1247gv. 105 n. 2 (2017)w257190  a(ODN)65694266533  aAR-ReUNNbspacAR-ReUNNeaacr2