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Table 1 Summary of implant vertical, horizontal and angle deviations from the planned implant

From: Accuracy of static computer-assisted implant placement in anterior and posterior sites by clinicians new to implant dentistry: in vitro comparison of fully guided, pilot-guided, and freehand protocols

 Vertical implant deviation 
 Anterior implantPosterior implantp values between anterior and posterior implants
 FGPGFHFGPGFH
Mean (mm)0.210.530.300.340.640.49FG = 0.07
SD (mm)0.120.520.240.230.370.22PG = 0.27
Maximum (mm)0.391.650.810.801.130.80FH = 0.05
Minimum (mm)0.090.050.070.040.200.07
p valuesAll groups = 0.12All groups = 0.08 
 Maximum horizontal implant neck deviation 
 Anterior implantPosterior implantp values between anterior and posterior implants
 FGPGFHFGPGFH
Mean (mm)0.471.140.790.521.011.27FG = 0.35
SD (mm)0.250.470.260.260.290.22PG = 0.23
Maximum (mm)1.072.171.350.991.411.62FH = 0.0003
Minimum (mm)0.160.440.320.370.340.99
p valuesAll groups = 0.001All groups = 0.000 
FG vs PG = 0.001FG vs PG = 0.001
FG vs FH = 0.13FG vs FH = 0.000
PG vs FH = 0.90PG vs FH = 0.08
 Maximum horizontal implant apex deviation 
 Anterior implantPosterior implantp values between anterior and posterior implants
 FGPGFHFGPGFH
Mean (mm)0.711.021.120.741.351.81FG = 0.37
SD (mm)0.240.540.710.230.550.53PG = 0.10
Maximum (mm)1.121.902.301.032.172.47FH = 0.01
Minimum (mm)0.270.280.250.440.561.17
p valuesAll groups = 0.22All groups = 0.000 
     FG vs PG = 0.02
     FG vs FH = 0.00
     PG vs FH = 0.08
 Maximum implant angle deviation 
 Anterior implantPosterior implantp values between anterior and posterior implants
 FGPGFHFGPGFH
Mean (°)2.424.654.792.617.794.77FG = 0.35
SD (°)0.981.782.081.232.642.09PG = 0.003
Maximum (°)3.919.297.405.0712.798.21FH = 0.49
Minimum (°)1.032.800.890.914.281.26
p valuesAll groups = 0.01All groups = 0.000 
FG vs PG = 0.02FG vs PG = 0.000
FG vs FH = 0.01FG vs FH = 0.07
PG vs FH = 0.98PG vs FH = 0.01