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Anatomic Measures: Pre- & Post-2PENN Procedure & Expansion (N = 20).
| Measurement | Pre-2PENN, Mean ± SD (mm) |
Post-2PENN, Mean ± SD (mm) |
Change | p-Value |
|---|---|---|---|---|
| PNS | – | 3.6 ± 1.3 | +3.6 ± 1.3 | <0.001 |
| IMD | 30.0 ± 3.5 | 36.1 ± 3.1 | +6.1 ± 1.6 | <0.001 |
| IMH | 9.7 ± 2.1 | 8.3 ± 1.9 | −1.4 ± 1.4 | <0.001 |
| ANS | – | 7.0 ± 1.6 | +7.0 ± 1.6 | <0.001 |
ANS = anterior nasal spine; IMD = first inter-molar distance; IMH = height at IMD horizontal; PNS = posterior nasal spine; PW = piriform width.
