Research Article

The Effect of Multiple Autoclave Sterilization on the Cyclic Fatigue of Three Heat-Treated Nickel-Titanium Rotary Files: EdgeFile X7, Vortex Blue, and TRUShape

Table 1

and mean differences between sterilized and nonsterilized instruments.

TypeMean difference95% CI of difference
LowerUpper

EdgeFile X7
 Sterilized12443.0246.9639.0
 Nonsterilized12
Vortex Blue
 Sterilized1237.4-158.7233.50.993
 Nonsterilized12
TRUShape
 Sterilized1245.5-150.6241.60.983
 Nonsterilized12

Significance level at .