Progress in Orthodontics

Table 4 The teeth movement of maxillary anterior teeth in PBD group

From: Long-term bone remodeling of maxillary anterior teeth with post-treatment alveolar bone defect in adult patients with maxillary protrusion: a prospective follow-up study

	T2–T1			T3–T2
	Mean	SD	p	p	Mean	SD
Maxillary central incisor
Incisal edge-sagittal (mm)	− 5.120	2.545	< 0.001^***	0.271	0.466	0.006^**
Incisal edge-vertical (mm)	− 0.300	1.248	0.164	− 0.457	0.614	< 0.001^***
Root apex-sagittal (mm)	− 2.277	1.845	< 0.001^***	0.749	0.564	< 0.001^***
Root apex-vertical (mm)	− 1.517	1.644	< 0.001^***	− 0.240	0.481	0.002^**
Maxillary lateral incisor
Incisal edge-sagittal (mm)	− 5.017	1.691	< 0.001^***	0.150	0.460	0.028^*
Incisal edge-vertical (mm)	− 0.136	1.215	0.506	− 0.417	0.405	< 0.001^***
Root apex-sagittal (mm)	− 1.797	1.630	< 0.001^***	0.528	0.391	< 0.001^***
Root apex- vertical (mm)	− 1.275	1.246	< 0.001^***	− 0.186	0.486	0.058
Maxillary canine
Cusp tip-sagittal (mm)	− 2.454	2.460	< 0.001^***	0.175	0.557	0.137
Cusp tip-transversal (mm)	0.813	1.338	0.007^**	− 0.117	0.459	0.226
Cusp tip-vertical (mm)	0.067	1.330	0.808	0.050	0.737	0.743
Root apex-sagittal (mm)	− 2.788	1.530	< 0.001^***	0.738	0.574	< 0.001^***
Root apex-transversal (mm)	1.000	1.390	0.002^**	− 0.104	0.420	0.236
Root apex-vertical (mm)	− 0.208	1.537	0.478	0.138	0.571	0.609

Positive values indicate labial, extrusive and buccal teeth movement. Negative values indicate lingual, intrusive and palatal teeth movement
^*P < 0.05; ^** P < 0.01; ^*** P < 0.001

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