表 3.

骨性安氏Ⅲ类患者牙周-正畸-正颌联合治疗前、后下前牙唇侧牙槽骨面积的变化

Comparison of labial alveolar bone area before and after the periodontal-orthodontic-orthognathic combined treatment of lower anterior teeth in patients with skeletal Angle class Ⅲ malocclusion

Items	Central incisors	Lateral incisors	Canines
BA-4, labial area at 4 mm apical to the CEJ; BA-6, labial area at 6 mm apical to the CEJ; BA-8, labial area at 8 mm apical to the CEJ; BA-a, labial area at the apex; T0, before treatment; T1, 6 months after PCRS; T2, 12 months after PCRS; T3, before orthognathic surgery; T4, after the periodontal-orthodontic-orthognathic combined treatment.* P < 0.05, a significant difference.
BA-4
T0	0.50±0.62	0.64±0.84	0.13±0.24
T1	2.05±1.71	1.83±1.64	1.26±1.15
T2	2.47±2.02	2.56±1.90	1.47±1.18
T3	2.54±2.08	2.65±2.02	1.40±1.30
T4	2.65±2.15	2.86±1.90	1.72±1.45
P value	< 0.001*	< 0.001*	< 0.001*
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1 < T2, T3, T4	T0 < T1, T2, T3, T4
BA-6
T0	1.15±1.12	1.21±1.22	0.39±0.50
T1	4.37±2.80	4.13±2.46	2.52±1.65
T2	5.49±3.34	5.47±2.81	3.03±1.87
T3	5.66±3.54	5.60±2.88	2.93±2.03
T4	5.35±2.94	5.62±2.65	3.14±1.96
P value	< 0.001*	< 0.001*	< 0.001*
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1 < T2, T3, T4	T0 < T1, T2, T3, T4
BA-8
T0	1.68±1.53	1.47±1.32	0.65±0.72
T1	7.88±4.47	7.51±3.44	4.06±2.22
T2	9.32±4.93	8.96±3.61	4.82±2.59
T3	9.50±4.84	9.30±3.80	4.64±2.74
T4	8.86±3.90	9.25±3.76	4.85±2.58
P value	< 0.001*	< 0.001*	< 0.001*
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1 < T2, T3, T4	T0 < T1, T2, T3, T4
BA-a
T0	4.04±3.18	4.48±2.43	6.10±4.66
T1	14.97±6.85	16.88±6.19	11.86±6.73
T2	16.59±8.03	18.62±6.83	14.08±6.62
T3	16.68±7.57	18.82±7.11	15.14±7.29
T4	15.80±7.35	19.50±10.34	14.98±7.75
P value	< 0.001*	< 0.001*	< 0.001*
Multiple comparison	T0 < T1, T2, T3, T4	T0 < T1, T2, T3, T4	T0 < T1, T2, T3, T4