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Progress in Orthodontics

Table 7 Stepwise multiple regression analysis of the effect of associated variables on removal torque values

From: Long-term evaluation of factors affecting removal torque of microimplants

Variables

Regression coefficient

p value

B

β

Self-drilling (Y1)

 Length of microimplant (X1)

0.663

0.221

 < 0.001

Pre-drilling (Y2)

 Diameter of microimplant (X2)

9.065

0.230

0.001

  1. B Unstandardized coefficient, β standardized coefficient, R2 coefficient of determination. Adjusted R2 = 0.047, in the self-drilling group. Adjusted R2 = 0.048, in the pre-drilling group
  2. Multiple linear regression equation: Y1 = −0.925 + 0.663 × X1; Y2 = −6.582 + 9.065 × X2
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