Table 8 Changes of soft tissue profile indexes before and after treatment in 30 children with skeletal Class III malocclusion of deciduous teeth
Indicator | IIA stage | IIIA stage | IIA-IIIA stage | t | P |
|---|---|---|---|---|---|
NLA(°) | 100.58 ± 11.33 | 99.31 ± 11.31 | 1.27 ± 11.31 | 0.615 | 0.543 |
FCA(°) | 4.00 ± 3.44 | 8.05 ± 4.14 | -4.06 ± 3.56 | -6.240 | 0.000*** |
UFH(%) | 41.43 ± 3.08 | 41.30 ± 2.70 | -0.13 ± 2.53 | 0.281 | 0.781 |
ULL(%) | 19.24 ± 1.65 | 19.61 ± 1.67 | -0.37 ± 2.27 | -0.893 | 0.379 |
LLL(%) | 39.33 ± 3.08 | 40.06 ± 4.33 | -0.73 ± 4.41 | -0.902 | 0.374 |
ULP(mm) | 4.87 ± 1.50 | 6.51 ± 2.01 | -1.64 ± 1.86 | -4.818 | 0.000*** |
LLP(mm) | 5.21 ± 1.77 | 5.55 ± 1.90 | -0.34 ± 2.06 | -0.914 | 0.368 |
UL-EP(mm) | -0.10 ± 1.88 | 1.64 ± 2.05 | -1.74 ± 1.56 | -6.127 | 0.000*** |
LL-EP(mm) | 2.51 ± 1.91 | 2.77 ± 2.20 | -0.26 ± 2.43 | -0.578 | 0.568 |
Z angle(°) | 69.71 ± 7.88 | 66.74 ± 12.96 | 2.98 ± 12.96 | 1.168 | 0.252 |