Novel CAD/CAM-splint-based navigation protocol enhances intraoperative maxillary position control in orthognathic surgery: a case control study

Table 3 Mixed ANOVA for analysis of influencing factors on surgical accuracy calculated as the root mean square of the difference between planned and post-surgically acquired maxillary position across all translational and rotational movements

Mixed ANOVA		sum of squares of type III	df	mean of squares	F	p	η²_p	Power
A	surgical navigation	2.31	1	2.31	11.56	0.004	0.45	0.97
B	sagittal discrepancy (Angle Class)	0.47	2	0.23	1.17	0.340	0.14	0.29
C	vertical discrepancy (Open Bite)	0.07	1	0.07	0.32	0.582	0.02	0.09
D	lateral discrepancy (Face Asymmetry)	0.41	1	0.41	2.28	0.150	0.12	0.35
E	planned movement (pre-op to planning)	0.74	1	0.74	5.18	0.037	0.24	0.66
A x B	navigation x sagittal discrepancy	0.17	2	0.09	0.43	0.657	0.06	0.14
A x C	navigation x vertical discrepancy	0.06	1	0.06	0.27	0.609	0.02	0.09
A x D	navigation x lateral discrepancy	0.18	1	0.18	0.99	0.334	0.06	0.19
A x E	navigation x amount of movement	0.40	1	0.40	2.76	0.116	0.15	0.43

p-values of p < 0.05 are considered statistically significant and are highlighted in bold text
df: degree of freedom; F: F-statistic; p: p-value, η²_p: partial eta-squared; RMS: root mean square; Power: calculated power of post-hoc power analysis

ISSN: 1746-160X