TABLE 2.
CEPHALOMETRIC CHANGES, CLASS III SURGERY
| A-P landmark changes (mm, + = forward) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Changes at Surgery | Changes Post-Surg to One Year | |||||||
| 2-Jaw n = 83 | Adj* | Mand Back n = 17 | Adj* | 2-Jaw n = 83 | Adj* | Mand Back n = 17 | Adj* | |
| Mean (SD) | Mean | Mean (SD) | Mean | Mean(SD) | Mean | Mean(SD) | Mean | |
| point A | 5.1 (3.2) | 4.9 | −0.2 (0.5) | 0.1 | −0.8 (2.1) | −0.8 | 0.3 (0.9) | 0.3 |
| point B | −5.8 (4.5) | −5.7 | −5.2(2.5) | −5.7 | 2.7 (2.6) | 2.7 | 2.9 (2.7) | 2.7 |
| pogonion (Pg) | −4.9 (6.1) | −4.7 | −3.7 (2.7) | −4.7 | 2.8 (3.0) | 2.8 | 2.8 (3.2) | 2.8 |
| gonion (Go) | −2.7 (3.4) | −2.8 | −3.0 (2.7) | −2.8 | 2.9 (3.0) | 3.0 | 3.3 (3.5) | 3.0 |
| condylion (Co) | 0.1 (2.1) | −0.04 | 0.2 (1.8) | −0.04 | 0.4 (1.8) | −0.4 | 0.6 (1.9) | −0.4 |
| mx incisor | 3.3 (3.1) | 3.3 | −0.2 (1.0) | −0.2 | 1.0 (2.0) | 1.0 | 1.2 (2.4) | 1.2 |
| mn incisor | −5.3 (3.9) | −5.5 | −6.3 (2.4) | −5.5 | 2.1 (2.2) | 2.2 | 2.6 (1.8) | 2.2 |
| Vertical landmark changes (mm, + = up) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Changes at Surgery | Changes Post-Surg to One Year | |||||||
| 2-Jaw n = 83 | Adj | Mand Back n = 17 | Adj | 2-Jaw n = 83 | Adj | Mand Back n = 17 | Adj | |
| Mean (SD) | Mean | Mean (SD) | Mean | Mean(SD) | Mean | Mean(SD) | Mean | |
| point A | 1.6 (3.1) | 1.6 | −0.2 (0.8) | −0.2 | −1.2(2.0) | −1.2 | −0.4 (1.5) | −0.4 |
| point B | 1.2 (4.6) | 1.0 | −0.1 (2.7) | 1.0 | 2.9 (2.9) | −2.7 | −1.6 (2.5) | −2.7 |
| pogonion (Pg) | 0.9 (5.4) | 0.6 | −0.8 (3.6) | 0.6 | −2.5(2.9) | −2.3 | −1.3 (2.4) | −2.3 |
| gonion (Go) | 0.7 (2.8) | 0.6 | 0.2 (3.0) | 0.6 | −1.7(2.7) | −1.7 | −1.6 (3.2) | −1.7 |
| condylion (Co) | 0.2 | −1.1 | −0.2 | 0.2 | ||||
| mx incisor | 2.3 (3.1) | 2.3 | 0.2 (1.7) | 0.1 | −1.1(2.9) | −1.1 | −0.7 (1.5) | −0.7 |
| mn incisor | 1.4 (4.7) | 1.2 | −0.2 (2.2) | 1.2 | −2.9(2.5) | −2.7 | −1.7 (2.5) | −2.7 |
| Dimensional landmark changes (mm, + = more) (degrees, + = larger) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Changes at Surgery | Changes Post-Surg to One Year | |||||||
| 2-Jaw n = 83 | Adj | Mand Back n = 17 | Adj | 2-Jaw n = 83 | Adj | Mand Back n = 17 | Adj | |
| overjet | 8.7 (3.3) | 8.7 | 5.4 (2.1) | 5.4 | −0.7 (1.7) | −0.7 | −1.3 (1.5) | −1.3 |
| overbite | 0.7 (3.0) | 0.6 | 0.2 (2.4) | 0.6 | 1.7 (1.6) | 1.6 | 1.1 (1.7) | 1.6 |
| Co-Pg | −3.1 (3.8) | −3.0 | −2.3 (3.2) | −3.0 | 0.5 (2.3) | 0.6 | 1.0 (1.9) | 0.6 |
| ANB° | 6.4 (4.9) | 6.3 | 1.1 (3.0) | 1.1 | −2.0 (1.8) | −2.0 | −1.1 (1.4) | −1.1 |
| mand plane angle ° | 0.7 (4.8) | 0.5 | −0.6 (2.8) | 0.5 | −0.7 (2.3) | −0.4 | 0.5 (3.0) | −0.4 |
| palatal plane angle° | 3.0 (3.6) | 3.0 | −0.1 (0.6) | −0.1 | −2.0 (1.8) | −1.0 | 0.1 (0.8) | 0.6 |
| SN-ArGo° | 2.7 (3.7) | 2.8 | 3.2 (4.2) | 2.8 | −3.5 (3.1) | −3.6 | −3.9 (4.1) | −3.6 |
*
Adjusted mean value for each type of surgery after controlling for gender