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Table 6 Statistical analysis of 1- and 3-month removal torque test data (Newton/cm)

From: Evaluation of the effects of different sand particles that used in dental implant roughened for osseointegration

   n Mean Min. Max. SD Mann Whitney testi
Al2O3 1 month 8 46.11 25.76 80.89 17.4 0.0027
3 month 8 109.06 45.67 139.16 33.36
TiO2 1 month 8 37.95 20.58 65.47 14.10 0.0005
3 month 8 93.79 66.15 114.07 14.03
SiO2 1 month 8 40.27 21.26 81.56 20.93 0.0027
3 month 8 83.19 48.15 104.51 21.45
Control 1 month 8 42.75 20.93 77.51 17.03 0.0023
3 month 8 82.06 59.4 124.53 21.79