Table 2. Incidence (%) of distance between actual length and electronically determined length with SS files and NiTi file.
| Distance* (mm) | Stainless steel file | NiTi file | ||||||
|---|---|---|---|---|---|---|---|---|
| RZX n (%) |
ELE n (%) |
MINI n (%) |
PIXI n (%) |
RZX n (%) |
ELE n (%) |
MINI n (%) |
PIXI n (%) |
|
| - 1.5 to - 1 | 3 (5) | 2 (3.3) | 1 (1.7) | 4 (6.7) | 3 (5) | 2 (3.3) | 1 (1.7) | 5 (8.3) |
| - 0.99 to - 0.49 | 1 (1.7) | 1 (1.7) | 1 (1.7) | 4 (6.7) | 4 (6.7) | - | - | 4 (6.7) |
| - 0.50 to + 0.50 | 56 (93.3) | 54 (90) | 57 (95) | 50 (83.3) | 42 (70) | 55 (91.7) | 41 (68.3) | 50 (83.3) |
| + 0.51 to + 1.0 | - | 3 (5) | 1 (1.7) | 2 (3.3) | 9 (15) | 3 (5) | 16 (26.7) | 1 (1.7) |
| + 1.0 to 1.5 | - | - | - | - | 2 (3.3) | - | 2 (3.3) | - |
| Total | 60 | 60 | 60 | 60 | 60 | 60 | 60 | 60 |
*Negative value indicates measurements short of the actual length
SS, Stainless steel; NiTi, nickel-titanium; RZX, Root ZX; ELE, Elements diagnostic unit and apex locator; MINI, SybronEndo Mini Apex locator; PIXI, Propex pixi.