pISSN 2234-7518
eISSN 2005-372X
eISSN 2005-372X
Amount of crown and apex movement in x, y, and z-axis directions before and after biocreative reverse curve system application
| Variable | X | Y | Z | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| N | Mean (mm) |
SD (mm) |
N | Mean (mm) |
SD (mm) |
N | Mean (mm) |
SD (mm) |
|||||||
| Crown | Total | 272 | 0.65 | 0.35 | < 0.0001 | 272 | 0.62 | 0.12 | 0.0498 | 272 | 0.83 | 0.18 | < 0.0001 | ||
| L4 | 68 | 0.12 | 0.57 | 68 | 0.60 | 1.24 | 68 | 1.22 | 1.12 | ||||||
| L5 | 68 | 1.03 | 1.11 | 68 | 0.54 | 1.14 | 68 | 1.64 | 1.09 | ||||||
| L6 | 68 | 0.97 | 0.98 | 68 | 0.68 | 0.99 | 68 | 1.26 | 1.22 | ||||||
| L7 | 68 | 0.49 | 1.41 | 68 | 0.65 | 1.02 | 68 | –0.81 | 0.81 | ||||||
| Apex | Total | 272 | –0.25 | 0.22 | < 0.0001 | 272 | –0.62 | 0.27 | < 0.0001 | 272 | 1.31 | 0.12 | < 0.0001 | ||
| L4 | 68 | 0.17 | 0.42 | 68 | 0.54 | 1.09 | 68 | 1.47 | 1.17 | ||||||
| L5 | 68 | 0.46 | 0.78 | 68 | –0.03 | 1.13 | 68 | 1.98 | 1.06 | ||||||
| L6 | 68 | 0.22 | 0.58 | 68 | –0.85 | 0.96 | 68 | 1.93 | 1.31 | ||||||
| L7 | 68 | –1.86 | 0.93 | 68 | –2.16 | 1.59 | 68 | –0.15 | 1.05 | ||||||
SD, standard deviation; L4, the mandibular first premolar; L5, the mandibular second premolar; L6, the mandibular first molar; L7, the mandibular second molar.
*Kruskal–Wallis test was performed.