Progress in Orthodontics

Table 5 Correlation between mandibular incisors inclination and clinical crown height (gingival recession) in the three time point intervals (Pearson’s correlation analysis)

From: Mandibular incisor inclination and gingival recession after treatment with the Jasper Jumper: a 10-year follow-up

	Clinical crown height (T2–T1)		Clinical crown height (T3–T2)		Clinical crown height (T3–T1)
	Coefficient	P	Coefficient	P	Coefficient	P
IMPA (L1-MP) (∫)	0.31	0.239	0.19	0.472	0.12	0.959
L1-NB (∫)	0.21	0.443	0.21	0.442	0.14	0.560
L1-NB (mm)	0.38	0.147	0.29	0.276	0.26	0.261
L1 to A-Po (mm)	0.16	0.553	0.12	0.671	0.16	0.504

T1—Pretreatment; T2—Posttreatment; T3—Follow-up

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