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

Progress in Orthodontics

Table 2 The incidence of alveolar bone defect of maxillary anterior teeth

Incidence rate (%)	T1	T2	T3	Overall	T1 vs T2	T2 vs T3	T1 vs T3
Incidence rate (%)	T1	T2	T3	p	p	p	p
Maxillary central incisor (n = 48)
PBD	0	75.00	2.08	< 0.001^***	< 0.001^***	< 0.001^***	< 0.001^***
LBF	4.17	10.42	0	0.017^*	0.250	0.018^*	0.149
Maxillary lateral incisor (n = 48)
PBD	0	77.08	10.42	< 0.001^***	< 0.001^***	< 0.001^***	0.018^*
LBF	20.83	20.83	10.42	0.024^*	1.000	0.018^*	0.049^*
Maxillary canine (n = 48)
PBD	0	50.00	20.83	< 0.001^***	< 0.001^***	< 0.001^**	< 0.001^***
LBF	37.50	41.67	20.83	0.020^*	0.562	0.012^*	0.014^*
All maxillary anterior teeth (n = 144)
PBD	0	67.36	11.11	< 0.001^***	< 0.001^***	< 0.001^***	< 0.001^***
LBF	20.83	24.31	10.42	< 0.001^***	0.334	< 0.001^***	0.001^**