Table 6.
Comparison of Dentoskeletal Changes at T3–T1 Between the Miniplate/FM Group and the RME/FM Groupa
| Cephalometric Measurements |
Miniplate/FM (n = 20) |
RME/FM (n = 23) |
P Value |
Sig |
||
| Mean |
SD |
Mean |
SD |
|||
| Cranial base | ||||||
| Saddle angle (°) | -0.5 | 0.9 | -0.7 | 0.9 | .367 | NS |
| Maxillary skeletal | ||||||
| SNA (°) | 3.9 | 2.1 | 2.7 | 1.1 | .022 | * |
| Midfacial length (Co-A) (mm) | 8.2 | 4.4 | 9.0 | 4.1 | .465 | NS |
| A to N perpendicular FH (mm) | 3.7 | 2.1 | 2.4 | 1.4 | .019 | * |
| SNO (°) | 2.4 | 1.7 | 2.0 | 3.1 | .306 | NS |
| Mandibular skeletal | ||||||
| SNB (°) | 0.6 | 1.9 | 1.3 | 2.7 | .247 | NS |
| Mandibular length (Co-Gn) (mm) | 12.8 | 6.0 | 16.0 | 8.1 | .223 | NS |
| Gonial angle (°) | -3.0 | 2.0 | -3.5 | 2.6 | .487 | NS |
| Maxillary/mandibular | ||||||
| ANB (°) | 3.3 | 1.5 | 1.4 | 2.5 | .004 | * |
| Wits appraisal (mm) | 5.7 | 2.8 | 3.1 | 2.8 | .007 | * |
| Maxillo-mandibular differential (mm) | 4.6 | 3.0 | 7.0 | 4.6 | .051 | NS |
| Angle of convexity (°) | 5.4 | 3.1 | 0.9 | 5.3 | .022 | * |
| Vertical skeletal | ||||||
| Palatal plane angle (°) | -1.4 | 1.8 | -0.3 | 1.6 | .024 | * |
| FMA (°) | -0.3 | 2.6 | -1.9 | 3.2 | .061 | NS |
| Lower anterior facial height (mm) | 9.0 | 4.2 | 9.1 | 3.3 | .626 | NS |
| Dentoalveolar | ||||||
| U1 to FH (°) | 7.3 | 9.0 | 7.9 | 8.9 | .798 | NS |
| L1 to MP (°) | 4.0 | 4.8 | 2.7 | 8.2 | .575 | NS |
| Overbite (mm) | -0.7 | 2.2 | -1.3 | 2.6 | .503 | NS |
| Overjet (mm) | 4.8 | 2.3 | 3.8 | 1.9 | .137 | NS |
*
P < .05 (Mann-Whitney U-test).
a
FM indicates facemask; NS, not significant; RME, rapid maxillary expansion; SD, standard deviation.