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. 2022 Jun 13;25(3):269–273. doi: 10.4103/jcd.jcd_631_20

Table 1.

File sequence

Group Mode of preparation Sequence of instrumentation Torque (NCM)/RPM
Group - A (Hyflex EDM) Crown down 0.12/#25 (orifice shaper) → 0.05/#10 (Glidepath file/working length) → 0.06/#25 one file (apical finishing till working length) 2.5/500
Group - B (flexicon X7) Crown down X7: 0.04/#17 (till working length) → 0.06/#17 (till working length) →0.04/#20 (till working length) →0.06/#20 (till working length) →0.04/#25 (apical finishing till working length) → 0.06/#25 (apical finishing till working length) 2.5/350
Group - C (flexicon X1) Crown down X1: 0.04/#17 (till working length) → 0.06/#17 (till working length) →0.06/#20 (till working length) → 0.06/#25 (apical finishing till working length) 2.5/350

EDM: Electric Discharge Machine, NCM: Newton-metre, RPM: Revolutions per minute