Comparative evaluation of molar distalization therapy with erupted second molar: Segmented versus Quad Pendulum appliance

Alberto Caprioglio; Mauro Cozzani; Mattia Fontana

doi:10.1186/s40510-014-0049-6

Progress in Orthodontics

Table 3 Demographics of the observation periods and observation intervals

From: Comparative evaluation of molar distalization therapy with erupted second molar: Segmented versus Quad Pendulum appliance

	T1 to T2					T2 to T3					T1 to T3
	Segmented pendulum group		Quad pendulum group			Segmented pendulum group		Quad pendulum group			Segmented pendulum group		Quad pendulum group
Cephalometric measures	Mean	SD	Mean	SD	pvalue	Mean	SD	Mean	SD	pvalue	Mean	SD	Mean	SD	pvalue
Sagittal skeletal relations
Maxillary position S-N-A	0.30	0.80	0.40	1.10	0.32	0.60	0.60	0.70	0.40	0.14	0.90	0.70	1.10	0.80	0.36
Mandibular position S-N-Pg	−1.00	0.50	−1.80	0.90	0.18	3.50	0.90	3.00	1.06	0.45	2.50	1.10	1.20	0.80	0.61
Sagittal jaw relation A-N-Pg	1.00	0.60	1.20	0.40	0.35	−3.00	0.50	−3.00	0.30	0.57	−2.00	0.60	−1.80	0.40	0.26
Vertical skeletal relations
Maxillary inclination S-N/ANS-PNS	0.30	0.60	0.40	0.20	0.12	0.30	0.60	0.40	0.50	0.16	0.60	0.60	0.80	0.40	0.31
Vertical jaw relation ANS-PNS/Go-Gn	0.40	0.60	0.60	0.50	0.63	0.40	0.40	0.60	0.50	0.14	0.80	0.50	1.20	0.50	0.0113*
Mandibular inclination S-N/Go-Gn	0.70	0.90	1.20	0.60	0.0038**	0.70	0.40	0.90	0.50	0.47	1.40	0.70	2.60	0.60	0.0026**
Dento-basal relations
Maxillary incisor inclination 1: ANS-PNS	4.10	0.90	6.10	1.10	0.0019**	−5.20	1.10	−9.10	1.00	<0,001***	−1.10	1.00	−3.00	1.10	0.0316*
Mandibular incisor inclination 1: Go-Gn	0.20	0.60	0.10	0.80	0.59	0.70	0.60	1.10	0.90	0.23	0.90	0.60	1.20	0.90	0.12
Mandibular incisor compensation 1/A-Pg (mm)	0.10	0.60	0.10	1.00	0.23	0.40	0.50	0.70	0.60	0.22	0.50	0.60	0.80	0.80	0.74
Dental relations
Overjet (mm)	1.90	0.70	3.90	0.50	<0.001***	−4.80	0.80	−5.20	0.40	0.0153**	−2.90	0.80	−1.30	0.50	0.41
Overbite (mm)	−0.20	0.60	−2.10	0.60	<0.001***	−0.50	0.70	0.80	0.40	0.0471*	−0.70	0.70	−1.30	0.50	0.0185*
Interincisal angle (1/1)	−4.10	1.10	−5.10	1.20	0.18	7.30	1.10	8.10	0.90	0.51	3.20	1.10	3.00	1.10	0.16
Maxillary dentoalveolar
Molar relationship (mm)	−4.00	1.00	−3.50	0.90	0.48	0.70	0.80	1.00	0.70	0.31	−3.30	0.90	−2.50	0.80	0.16
U1 horizontal (mm)	1.70	0.70	2.10	0.90	0.67	−2.60	0.40	−3.40	0.40	0.0035**	−0.90	0.60	−1.30	0.70	0.28
U1 vertical (mm)	−0.4	1.00	−1.60	1.20	0.11	1.00	0.70	1.50	0.80	0.15	1.00	0.90	−0.10	1.00	0.0321*
U4 horizontal (mm)	1.50	1.20	1.80	0.90	0.16	−2.70	0.30	−2.90	0.20	0.15	−1.20	0.80	−1.10	0.60	0.36
U4 vertical (mm)	0.30	0.20	0.80	0.90	0.38	0.10	0.40	0.20	0.90	0.44	0.40	0.30	1.00	0.90	0.52
U6 horizontal (mm)	−4.00	0.90	−3.50	0.70	0.26	2.20	0.60	2.00	0.70	0.49	−1.80	0.80	−1.50	0.70	0.17
U7 horizontal (mm)	−3.80	1.20	−3.20	0.90	0.42	1.90	0.40	1.90	0.60	0.58	−1.90	0.80	−1.30	0.70	0.16
U6 vertical (mm)	0.20	0.20	1.10	0.90	<0.001***	0.80	0.60	0.70	0.40	0.37	1.00	0.40	1.80	0.70	<0.001***
U1 to FH (deg)	3.80	0.90	6.60	1.20	0.0019**	−4.90	0.70	−9.10	0.90	<0.001***	−1.10	0.80	−2.50	1.10	<0.001***
U4 to FH (deg)	1.60	0.90	2.00	0.70	0.13	−0.90	1.10	−1.30	0.70	0.12	0.70	1.00	0.70	0.70	0.27
U6 to FH (deg)	−9.60	1.60	−4.60	1.10	<0.001***	10.10	1.10	5.80	0.90	<0.001***	0.50	1.40	1.20	1.00	0.17
U7 to FH (deg)	−14.60	4.60	−11.60	5.10	0.0454*	13.00	3.40	11.30	4.20	0.53	−1.60	1.40	−0.30	1.00	0.31
Mandibular dentoalveolar
L1 horizontal (mm)	0.20	0.30	0.10	0.40	0.46	0.90	0.70	1.30	0.50	0.0237*	1.10	0.50	1.40	0.50	0.14
L1 vertical (mm)	0.30	0.20	0.60	0.30	0.54	0.40	0.40	0.50	0.60	0.66	0.70	0.30	1.10	0.50	0.26
L6 horizontal (mm)	0.10	0.40	0.20	0.40	0.67	0.60	0.40	0.90	0.40	0.13	0.70	0.40	1.10	0.40	0.32
L6 vertical (mm)	0.30	0.40	0.30	0.50	0.17	1.30	0.60	1.10	0.70	0.12	1.60	0.50	1.40	0.60	0.63

Mann-Whitney U test. *p < 0.05; **p < 0.01; ***p < 0.001.

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