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Table 1 Sample size analysis for 80% power, with 0.05 alpha value

From: Changes in the midpalatal and pterygopalatine sutures induced by micro-implant-supported skeletal expander, analyzed with a novel 3D method based on CBCT imaging

Parameter Number Treatment change n for 80% power
Mean sd
Rt ANS to maxillary sagittal plane 15 2.59 1.70 6
Lt ANS to maxillary sagittal plane 15 2.16 1.27 5
Rt PNS to maxillary sagittal plane 15 2.34 1.32 5
Lt PNS to maxillary sagittal plane 15 1.99 0.90 4
Width of opening in Rt pterygoid process 15 1.35 1.79 15
Width of opening in Lt pterygoid process 15 2.17 2.45 13