THE INFLUENCE OF ULTRASONIC ACTIVATION ON THE SETTING TIME AND FLOW OF FOUR ENDODONTIC SEALERS

The aim of the present study was to evaluate influence ultrasonic activation (UA) on setting time and flow four endodontic sealers: AH Plus (AH), Sealer (SP), MTA Fillapex (MTAF), BioRoot RCS (BIO). Properties were evaluated as required by ANSI/ADA Specification N° 57 (2008); only size specimens modified. UA applied using a smooth tapered tip coupled piezoelectric device (30% power) freshly mixed materials in two cycles 20 seconds. results statistically analyzed ANOVA Kruskal-Wallis tests, followed Tukey Dunn posthoc respectively, depending normality data. shortest times, initial final, were, 115 (BIO/UA) 148.6 min, whereas longest 1215 (AH) 1928 min. MTAF sealer did not set throughout experimental period (2880 minutes). Significant differences observed between BIO other sealers, with or without UA, both final (P < 0.05). change times; however, it reduced highest lowest values 25.52 mm (AH/UA) 18.66 (BIO/UA), respectively. sealer, regardless exhibited higher compared sealers 0.05), except for MTAF/UA group, which promoted significant increase Under conditions study, can be concluded that BIO, under presented time; values. reach its setting. Moreover, SP groups intermediate all analyses. In summary, group influenced UA.