Table 3.
Changes After Treatment With Active Protraction (T2-T1)
| FM Group |
95% CI |
FM+MS Group |
95% CI |
Difference |
P Value |
Significance |
|||||
| Mean |
SD |
Mean |
SD |
||||||||
| T2-T1 (total)a | |||||||||||
| SNA, ° | 1.1 | 1.0 | 0.6 | 1.6 | 2.2 | 1.3 | 1.6 | 2.8 | 1.1 | .006 | ** |
| SNB, ° | 0.0 | 1.0 | −0.6 | 0.5 | 0.1 | 1.3 | −0.5 | 0.7 | 0.1 | .531 | NSd |
| ANB, ° | 1.2 | 1.2 | 0.6 | 1.7 | 2.0 | 1.3 | 1.4 | 2.7 | 0.8 | .034 | * |
| SN-ANS, ° | 1.2 | 1.3 | 0.6 | 1.8 | 2.5 | 1.7 | 1.7 | 3.3 | 1.3 | .021 | *d |
| MP-SN, ° | −0.1 | 1.2 | −0.7 | 0.4 | −0.1 | 1.3 | −0.7 | 0.5 | 0.0 | .976 | NS |
| U1-SN, ° | 4.6 | 4.5 | 2.5 | 6.6 | −0.4 | 4.2 | −2.4 | 1.6 | −5.0 | .001 | ** |
| N-Me, mm | 4.3 | 2.7 | 3.0 | 5.6 | 5.9 | 3.6 | 4.2 | 7.7 | 1.6 | .113 | NSd |
| PTM-U6/NF, mm | 2.9 | 2.0 | 2.0 | 3.9 | 2.6 | 2.1 | 1.6 | 3.6 | −0.3 | .652 | NS |
| U6/NF, mm | 2.2 | 2.0 | 1.2 | 3.1 | 1.2 | 1.4 | 0.5 | 1.9 | −1.0 | .089 | NSd |
| L6/MP, mm | 1.7 | 1.3 | 1.1 | 2.3 | 2.3 | 1.8 | 1.4 | 3.2 | 0.6 | .262 | NS |
| Facial A, ° | 0.1 | 1.4 | −0.5 | 0.8 | 0.0 | 1.6 | −0.7 | 0.9 | −0.1 | .771 | NS |
| Y axis, ° | 0.3 | 1.2 | −0.3 | 0.9 | 0.1 | 1.1 | −0.4 | 0.6 | −0.2 | .771 | NSd |
| T2-T1 (M)b | |||||||||||
| SNA, ° | 1.3 | 1.1 | 0.5 | 2.0 | 2.4 | 1.4 | 1.5 | 3.3 | 1.1 | .038 | * |
| SNB, ° | 0.4 | 0.9 | −0.1 | 1.0 | 0.3 | 0.9 | −0.2 | 0.9 | −0.1 | .795 | NSd |
| ANB, ° | 0.8 | 0.8 | 0.3 | 1.3 | 2.1 | 1.3 | 1.3 | 2.9 | 1.3 | .007 | ** |
| SN-ANS, ° | 1.4 | 1.5 | 0.5 | 2.3 | 2.6 | 1.8 | 1.4 | 3.7 | 1.2 | .105 | NS |
| MP-SN, ° | −0.4 | 1.1 | −1.1 | 0.3 | −0.5 | 0.9 | −1.1 | 0.0 | −0.1 | .784 | NS |
| U1-SN, ° | 5.8 | 4.7 | 2.8 | 8.8 | 0.6 | 4.3 | −2.1 | 3.3 | −5.2 | .009 | ** |
| N-Me, mm | 3.9 | 2.1 | 2.6 | 5.2 | 6.4 | 3.7 | 4.0 | 8.7 | 2.5 | .043 | *d |
| PTM-U6/NF, mm | 2.9 | 1.6 | 1.9 | 3.9 | 2.6 | 1.9 | 1.4 | 3.9 | −0.3 | .693 | NS |
| U6/NF, mm | 1.8 | 0.8 | 1.2 | 2.3 | 1.6 | 1.6 | 0.6 | 2.6 | −0.2 | .736 | NS |
| L6/MP, mm | 1.7 | 1.3 | 0.9 | 2.5 | 2.3 | 1.9 | 1.2 | 3.5 | 0.6 | .323 | NS |
| Facial A, ° | 0.0 | 1.1 | −0.6 | 0.7 | −0.1 | 1.3 | −1.0 | 0.7 | −0.1 | .764 | NS |
| Y axis, ° | 0.4 | 1.1 | −0.3 | 1.1 | 0.0 | 0.7 | −0.4 | 0.5 | −0.4 | .427 | NS |
| T2-T1 (F)c | |||||||||||
| SNA, ° | 0.9 | 0.8 | 0.2 | 1.6 | 1.7 | 0.8 | 1.0 | 2.4 | 0.8 | .062 | NS |
| SNB, ° | −0.8 | 1.3 | −1.8 | 0.3 | −0.3 | 1.8 | −1.9 | 1.4 | 0.5 | .530 | NS |
| ANB, ° | 1.7 | 1.6 | 0.4 | 3.0 | 2.0 | 1.5 | 0.6 | 3.4 | 0.3 | .706 | NS |
| SN-ANS, ° | 0.9 | 1.0 | 0.1 | 1.8 | 2.3 | 1.7 | 0.9 | 3.8 | 1.4 | .073 | NS |
| MP-SN, ° | 0.3 | 1.2 | −0.7 | 1.3 | 0.6 | 1.5 | −0.8 | 2.0 | 0.3 | .744 | NS |
| U1-SN, ° | 2.7 | 3.6 | −0.3 | 5.7 | −2.1 | 3.8 | −5.6 | 1.4 | −4.8 | .025 | * |
| N-Me, mm | 4.9 | 3.5 | 2.0 | 7.8 | 5.2 | 3.5 | 1.9 | 8.4 | 0.3 | .999 | NSd |
| PTM-U6/NF, mm | 2.9 | 2.7 | 0.7 | 5.1 | 2.6 | 2.5 | 0.3 | 4.9 | −0.3 | .999 | NSd |
| U6/NF, mm | 2.8 | 3.0 | 0.3 | 5.4 | 0.6 | 0.5 | 0.1 | 1.1 | −2.2 | .054 | NSd |
| L6/MP, mm | 1.7 | 1.6 | 0.4 | 3.0 | 2.2 | 1.8 | 0.5 | 3.9 | 0.5 | .616 | NS |
| Facial A, ° | 0.3 | 1.9 | −1.4 | 1.9 | 0.2 | 2.0 | −1.6 | 2.5 | −0.1 | .919 | NS |
| Y axis, ° | 0.2 | 1.5 | −1.0 | 1.4 | 0.2 | 1.6 | −1.2 | 1.7 | 0.0 | .970 | NS |
Upper section: total; Middle section: males; Lower section: females.
a
FM group (N = 20), FM+MS group (N = 19).
b
FM group (N = 12), FM+MS group (N = 12).
c
FM group (N = 8), FM+MS group (N = 7).
*
P < .05; **P < .01;d Mann-Whitney U-test.