Table 2: Descriptive statistics of the fracture resistance of 3 dowel groups; glass fiber dowel, indirect resin dowel and pre-fabricated dowel with indirect resin crown.

- n Mean ±SD Std. Error 95% CI for Mean Min Max
Lower Bound Upper Bound
Glass fiber dowel 7 541.05 ±199.57 75.43 356.47 725.62 275.78 783.25
Indirect resin dowel and post 7 444.55 ±139.79 52.83 315.27 573.83 176.90 617.03
Pre-fabricated metal dowel 7 566.48 ±157.77 59.63 420.56 712.39 225.21 697.84

n = sample. CI = Confidence Interval for Mean. SD = Std. Deviation, Min = Minimum, Max = Maximum