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Table 2 Comparison of surgical outcomes with and without 3D models. Welch’s t test was used to test the difference between the mean values of amount of bleeding and the operating time

From: Utilization of desktop 3D printer-fabricated “Cost-Effective” 3D models in orthognathic surgery

  With 3D models Without 3D models p value
Number of cases 25 20  
Mean amount of bleeding 252.2 ± 97.7 g 331.2 ± 85.9 g 0.0971
Mean operating time 226 ± 18 min 260 ± 36 min 0.0255