Class III correction using an inter-arch spring-loaded module

Table 2 Individual sagittal changes (mm) between pre-treatment and post-treatment in 30 subjects

	Overjet	Maxillary incisor	Mandibular incisor	Molar relationship	Maxillary molar	Mandibular molar	Maxillary base	Mandibular base
Patient
1	4.7	3.7	−1.0	5.4	4.5	−0.9	1.3	0.1
2	0.8	4.7	3.9	−1.0	−2.6	−1.6	0.3	−1.4
3	−7.7	−5.4	2.3	11.8	4.1	−7.7	0.5	−5.3
4	0.4	1.0	0.6	7.5	2.7	−4.8	0.9	−1.0
5	6.0	−0.3	−6.3	6.2	−0.5	−6.7	−0.4	−3.0
6	11.5	3.8	−7.7	7.8	0.9	−6.9	0.9	−6.2
7	8.9	4.9	−4.0	6.4	2.4	−4.0	0.6	−1.8
8	0.6	−0.7	−1.3	7.7	3.6	−4.1	1.3	−2.5
9	9.8	5.0	−4.8	6.5	−1.6	−8.1	−0.1	−4.4
10	7.0	6.0	−1.0	9.4	2.8	−6.6	1.1	−1.9
11	2.1	2.2	0.1	1.8	1.3	−0.5	0.2	−2.6
12	5.1	2.0	−3.1	7.7	3.5	−4.2	0.5	−4.8
13	7.8	3.9	−3.9	−4.8	−3.5	1.3	−0.8	−4.9
14	4.2	2.1	−2.1	3.0	1.2	−1.8	0.0	−2.5
15	−0.5	4.0	4.5	5.9	2.7	−3.2	3.0	−0.2
16	0.2	−1.1	−1.3	0.4	−1.1	−1.5	0.4	−2.6
17	1.0	2.1	1.1	3.1	0.9	−2.2	1.6	−2.0
18	6.1	3.9	−2.2	10,6	6.6	−4.0	1.2	−2.2
19	5.3	1.6	−3.7	2.2	3.1	0.9	−0.4	−4.1
20	4.2	−0.1	−4.3	4.8	1.2	−3.6	1.3	−4.6
21	10.0	2.3	−7.7	9.1	1.8	−7.3	1.2	−7.5
22	11.3	6.1	−5.2	1.2	−0.2	−1.4	0.9	−3.0
23	7.4	8.5	1.1	7.1	6.3	−0.8	4.5	0.7
24	5.0	4.1	−0.9	6.1	4.7	−1.4	1.5	0.4
25	2.8	−4.5	−7.3	5.9	2.3	−3.6	−1.4	−5.5
26	3.4	4.0	0.6	7.0	4.1	−2.9	0.8	−0.6
27	0.4	3.2	2.8	−3.5	−0.7	2.8	0.7	2.1
28	5.8	−2.5	−8.3	7.4	0.0	−7.4	−0.4	−7.4
29	4.4	2.9	−1.5	8.4	2.9	−5.5	0.7	−2.6
30	−8.3	−3.0	5.3	4.2	0.5	−3.7	1.4	−3.4
Pooled
Mean	4.0*	2.1*	−1.8*	5.2*	1.8*	−3.4*	0.8*	−2.8*
SD	4.7	3.2	3.7	3.9	2.4	2.8	1.1	3.7
Min	−8.3	−5.4	−8.3	−4.8	−3.5	−8.1	−1.4	−8.3
Max	11.5	8.5	5.3	11.8	6.6	2.8	4.5	5.3

Overjet (Is/OLp − Ii/OLp), molar relationship (Ms/OLp − Mi/OLp), maxillary base (A/OLp), mandibular base (Pg/OLp), maxillary incisor (Is/OLp), mandibular incisor (Ii/OLp), maxillary molar (Ms/OLp), and mandibular molar (Mi/OLp).
* = p<.05.