Curve of Spee modification in different vertical skeletal patterns after clear aligner therapy: a 3D set-up retrospective study

Progress in Orthodontics

Table 3 Results of the Shapiro–Wilk normality test for all variables of the whole sample and by group

Variable	Cohort	Statistics	df	p
△7 MB	Normodivergent (n = 36)	0.962	34	0.278
	Hyperdivergent (n = 34)	0.959	28	0.334
	Hypodivergent (n = 34)	0.834	34	0.000
	Total sample (n = 106)
△6 MB	Normodivergent (n = 36)	0.947	34	0.097
	Hyperdivergent (n = 34)	0.967	28	0.500
	Hypodivergent (n = 34)	0.896	34	0.004
	Total sample (n = 106)
△5B	Normodivergent (n = 36)	0.946	34	0.096
	Hyperdivergent (n = 34)	0.945	28	0.145
	Hypodivergent (n = 34)	0.956	34	0.181
	Total sample (n = 106)
△4B	Normodivergent (n = 36)	0.935	34	0.044
	Hyperdivergent (n = 34)	0.925	28	0.047
	Hypodivergent (n = 34)	0.962	34	0.276
	Total sample (n = 106)