Alveolar ridge heights | Measure points | % | Mean (mm) | Std. dev. (mm) | Measure-point distribution | % | |
n = | 3528 |
|
|
| n = | 3528 |
|
Group I (≤2 mm) | 902 | 25.57 | 1.6 | 0.2 | 2nd maxillary molar | 264 | 7.48 |
Group II (2 - 4 mm) | 1124 | 31.86 | 3.1 | 0.3 | 1st maxillary molar | 1789 | 50.71 |
Group III (4 - 6 mm) | 862 | 24.43 | 4.8 | 0.5 | 2nd maxillary premolar | 956 | 27.10 |
Group IV (6 - 8 mm) | 427 | 12.10 | 7.3 | 0.4 | 1st maxillary premolar | 383 | 10.86 |
Group V (>8 mm) | 213 | 6.04 | 10.7 | 1.2 | Canine | 136 | 3.85 |