Table 1: Descriptive statistics of fiber post fracture strength data with the significance of between-group differences.

Number groupName group MeanStd. DeviationMedian25%–75%Significance

1Ferrule-5 mm10163,872,5142,9132,7–181,1AB
2Ferrule-7 mm10270,9105,6244,9215,2–350,3A
3Ferrule-9 mm10254,779,1235,4193,4–305,6A
4No ferrule-5 mm1040,53,140,238,4–44,2C
5No ferrule-7 mm1041,75,34336,8–46,2C
6No ferrule-9 mm1044,96,744,540,5–51,7BC