Skip to main content

Table 1 Descriptive statistics of| the deviations of three groups’ miniscrew

From: Accuracy of two orthodontic mini-implant templates in the infrazygomatic crest zone: a prospective cohort study

Variable Group A (n = 6) Group B (n = 9) Group C (n = 15) H-value P-value
Mean ± SD 95% confidence interval Mean ± SD 95% confidence interval Mean ± SD 95% confidence interval
Minimum Maximum Minimum Maximum   Minimum Maximum
Miniscrew tip at BP (mm) 1.4383 ± 0.79025 0.6090 2.2677 3.2733 ± 1.56759 2.0684 4.4783 3.0560 ± 2.75783 1.5288 4.5832 5.593 0.061
Miniscrew cap at BP (mm) 0.9383 ± 1.14341 −0.2616 2.1383 2.5500 ± 1.50330 1.3945 3.7055 3.8600 ± 5.27122 0.9409 6.7791 7.057 0.029*
Miniscrew angle at BP (°) 4.5667 ± 2.36107 2.0889 7.0445 7.4889 ± 4.68467 3.8879 11.0898 9.3667 ± 12.54920 2.4172 16.3162 1.075 0.584
Miniscrew tip at MD (mm) 1.3700 ± 1.01453 0.3053 2.4347 3.3244 ± 1.45396 2.2068 4.4421 2.9733 ± 1.63841 2.0660 3.8807 6.380 0.041*
Miniscrew cap at MD (mm) 1.6083 ± 1.91491 −0.4012 3.6179 2.3789 ± 1.65812 1.1043 3.6534 2.7687 ± 2.09217 1.6101 3.9273 2.424 0.298
Miniscrew angle at MD (°) 7.7500 ± 8.14267 −0.7952 16.2952 6.7111 ± 3.84820 3.7531 9.6691 10.7533 ± 6.49724 7.1553 14.3514 3.941 0.139
Miniscrew tip at VD (mm) 0.5450 ± 0.60879 −0.0939 1.1839 0.9722 ± 0.81269 0.3475 1.5969 3.2853 ± 2.43316 1.9379 4.6328 14.176 0.001**
Miniscrew cap at VD (mm) 0.6150 ± 0.67299 −0.0913 1.3213 1.1078 ± 0.81558 0.4809 1.7347 3.9620 ± 5.81445 0.7421 7.1819 14.346 0.001**
Miniscrew angle at VD (°) 9.5167 ± 10.42332 −1.4219 20.4553 10.6444 ± 9.11785 3.6358 17.6530 14.6867 ± 8.21461 10.1376 19.2358 3.137 0.208
  1. BP bucco-palatal direction, MD mesio-distal direction, VD vertical direction
  2. *P < 0.05; **P < 0.01