From: Distance to alveolar crestal bone: a critical factor in the success of orthodontic mini-implants
Jaw | Type | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Pooled | Maxilla | Mandible | 1 | 2 | ||||||
Success | Failure | Success | Failure | Success | Failure | Success | Failure | Success | Failure | |
N | 229 | 31 | 188 | 21 | 41 | 10 | 133 | 14 | 96 | 17 |
Min | 0.3 | 0.5 | 0.3 | 0.5 | 0.7 | 0.8 | 0.3 | 0.8 | 0.4 | 0.5 |
Max | 3.6 | 2.6 | 3.6 | 2.6 | 3.6 | 2.5 | 3.6 | 2.6 | 3.3 | 2.3 |
Mean | 1.6 | 1.42 | 1.60 | 1.44 | 1.62 | 1.39 | 1.73 | 1.52 | 1.42 | 1.34 |
SD | 0.77 | 0.56 | 0.75 | 0.55 | 0.87 | 0.59 | 0.78 | 0.55 | 0.71 | 0.56 |
t | 1.621 | 0.966 | 0.798 | 0.986 | 0.458 | |||||
p | 0.112 | 0.335 | 0.429 | 0.326 | 0.648 |