U+ File
1.0 MaxTech Niti alloy (1.0 3.0 6.0)
2.0 Suitable for regular canal preparation
3.0 Triangular cross-section and safe guiding tip
4.0 Variable taper, optimize file function
5.0 Continuous clockwise rotation
Crown-Down Sequence:
Create straight-line access to canal orifice (SX)
Shape the coronal 2/3, confirm working length and smooth the root canal (S1, S2)
Shape the apical 1/3 with finisher (F1, F2). If necessary, proceed to F3, F4, F5.
SX→S1-→S2→F1/F2→F3/F4/F5
