Table 1 Cephalometric summary
| Â | Pre-treatment | 6Â months after mandibular DO | Post-treatment | Japanese female adults norm | |
|---|---|---|---|---|---|
Measurements | Age 16 y 11 mo. | Age 20 y 1 mo. | Age 22 y 1 mo. | Mean | SD |
Angular (°) | |||||
 ANB | 18.0 | 13.0 | 13.0 | 3.3 | 2.7 |
 SNA | 80.5 | 80.5 | 80.5 | 80.8 | 3.6 |
 SNB | 62.5 | 67.5 | 67.5 | 77.9 | 3.6 |
 Facial angle | 64.0 | 68.0 | 69.5 | 84.8 | 3.0 |
 Gonial angle | 144.0 | 140.0 | 141.0 | 122.1 | 5.3 |
 Mand pl-FH pl | 45.0 | 49.0 | 50.0 | 30.5 | 3.6 |
 U1-FH pl | 106.5 | 91.5 | 92.5 | 112.3 | 8.3 |
 L1-mand pl | 111.0 | 116.0 | 107.0 | 93.4 | 6.8 |
 Interincisal angle | 97.5 | 103.5 | 110.5 | 123.6 | 10.6 |
Linear (mm) | |||||
 S-N | 76.0 | 76.0 | 76.0 | 67.9 | 3.7 |
 N-Me | 115.5 | 118.5 | 122.0 | 125.8 | 5.0 |
 Me/palatal pl | 53.0 | 59.5 | 63.5 | 68.6 | 3.7 |
 Go-Me | 47.0 | 57.5 | 62.0 | 71.4 | 4.1 |
 U1 to APO | 22.0 | 12.0 | 11.5 | 6.2 | 1.5 |
 L1 to APO | 24.0 | 12.5 | 9.0 | 3.0 | 1.5 |
 Overjet | 15.0 | 0.0 | 2.5 | 3.1 | 1.1 |
 Overbite | 7.0 | 0.0 | 1.5 | 3.3 | 1.9 |
Soft tissue (mm) | |||||
 Upper lip to E-line | 11.5 | 2.5 | 0.0 | −2.5 | 1.9 |
 Lower lip to E-line | 8.5 | 3.5 | −1.5 | 0.9 | 1.9 |
Upper airway length | 70.5 | Â | 62.0 | Â | Â |
Hyoid bone position | 33.8 | _ | 22.2 | _ | _ |